app scaffold

packages/native_scan/.gitignore

@@ -0,0 +1,33 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.build/
+.buildlog/
+.history
+.svn/
+.swiftpm/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+# Libraries should not include pubspec.lock, per https://dart.dev/guides/libraries/private-files#pubspeclock.
+/pubspec.lock
+**/doc/api/
+.dart_tool/
+.flutter-plugins-dependencies
+/build/
+/coverage/

packages/native_scan/.metadata

@@ -0,0 +1,33 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: "6b182d2c7585eba26d4edce0f97630effd256c33"
+  channel: "stable"
+
+project_type: plugin
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: 6b182d2c7585eba26d4edce0f97630effd256c33
+      base_revision: 6b182d2c7585eba26d4edce0f97630effd256c33
+    - platform: android
+      create_revision: 6b182d2c7585eba26d4edce0f97630effd256c33
+      base_revision: 6b182d2c7585eba26d4edce0f97630effd256c33
+    - platform: ios
+      create_revision: 6b182d2c7585eba26d4edce0f97630effd256c33
+      base_revision: 6b182d2c7585eba26d4edce0f97630effd256c33
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'

packages/native_scan/CHANGELOG.md

@@ -0,0 +1,3 @@
+## 0.0.1
+
+* TODO: Describe initial release.

packages/native_scan/LICENSE

@@ -0,0 +1 @@
+TODO: Add your license here.

packages/native_scan/README.md

@@ -0,0 +1,15 @@
+# native_scan
+
+A new Flutter plugin project.
+
+## Getting Started
+
+This project is a starting point for a Flutter
+[plug-in package](https://flutter.dev/to/develop-plugins),
+a specialized package that includes platform-specific implementation code for
+Android and/or iOS.
+
+For help getting started with Flutter development, view the
+[online documentation](https://docs.flutter.dev), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.
+

packages/native_scan/analysis_options.yaml

@@ -0,0 +1 @@
+include: ../../analysis_options.yaml

packages/native_scan/android/.gitignore

@@ -0,0 +1,9 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+.cxx

packages/native_scan/android/build.gradle.kts

@@ -0,0 +1,77 @@
+group = "com.conti.native_scan"
+version = "1.0-SNAPSHOT"
+
+buildscript {
+    val kotlinVersion = "2.3.20"
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath("com.android.tools.build:gradle:9.0.1")
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion")
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+plugins {
+    id("com.android.library")
+}
+
+android {
+    namespace = "com.conti.native_scan"
+
+    compileSdk = 36
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+
+    sourceSets {
+        getByName("main") {
+            java.srcDirs("src/main/kotlin")
+        }
+        getByName("test") {
+            java.srcDirs("src/test/kotlin")
+        }
+    }
+
+    defaultConfig {
+        minSdk = 24
+    }
+
+    testOptions {
+        unitTests {
+            isIncludeAndroidResources = true
+            all {
+                it.useJUnitPlatform()
+
+                it.outputs.upToDateWhen { false }
+
+                it.testLogging {
+                    events("passed", "skipped", "failed", "standardOut", "standardError")
+                    showStandardStreams = true
+                }
+            }
+        }
+    }
+}
+
+kotlin {
+    compilerOptions {
+        jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
+    }
+}
+
+dependencies {
+    testImplementation("org.jetbrains.kotlin:kotlin-test")
+    testImplementation("org.mockito:mockito-core:5.0.0")
+}

packages/native_scan/android/settings.gradle.kts

@@ -0,0 +1 @@
+rootProject.name = "native_scan"

packages/native_scan/android/src/main/AndroidManifest.xml

@@ -0,0 +1,3 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.conti.native_scan">
+</manifest>

packages/native_scan/android/src/main/kotlin/com/conti/native_scan/NativeScanPlugin.kt

@@ -0,0 +1,28 @@
+package com.conti.native_scan
+
+import io.flutter.embedding.engine.plugins.FlutterPlugin
+
+/**
+ * 扫码插件的 Android 入口。
+ *
+ * TODO(native): 手写原生实现本次不在范围内，见 conti-docs/07-native-integration.md。
+ * 补完时需要做的事：
+ *   1. 让某个类实现 pigeon 生成的 `ScanHostApi`（见 ScanApi.g.kt，不要手改生成物）；
+ *   2. 在 onAttachedToEngine 里 `ScanHostApi.setUp(binding.binaryMessenger, impl)`；
+ *   3. 实现 ActivityAware 拿到 Activity（扫码要起页面、要申请相机权限）；
+ *   4. 取消 / 权限拒绝 / 能力不可用必须回 FlutterError，code 用
+ *      CANCELLED / PERMISSION_DENIED / UNAVAILABLE —— 与 Dart 侧
+ *      NativeScanErrorCode 一一对应，**不允许返回占位假数据**。
+ *
+ * 在此之前，Dart 侧调用会收到 MissingPluginException，
+ * 并被 NativeScan 转成 UNSUPPORTED_PLATFORM，属预期行为。
+ */
+class NativeScanPlugin : FlutterPlugin {
+    override fun onAttachedToEngine(binding: FlutterPlugin.FlutterPluginBinding) {
+        // TODO(native): ScanHostApi.setUp(binding.binaryMessenger, ScanApiImpl(...))
+    }
+
+    override fun onDetachedFromEngine(binding: FlutterPlugin.FlutterPluginBinding) {
+        // TODO(native): ScanHostApi.setUp(binding.binaryMessenger, null)
+    }
+}

packages/native_scan/android/src/main/kotlin/com/conti/native_scan/ScanApi.g.kt

@@ -0,0 +1,445 @@
+// Autogenerated from Pigeon (v27.3.0), do not edit directly.
+// See also: https://pub.dev/packages/pigeon
+@file:Suppress("UNCHECKED_CAST", "ArrayInDataClass")
+
+package com.conti.native_scan
+
+import android.util.Log
+import io.flutter.plugin.common.BasicMessageChannel
+import io.flutter.plugin.common.BinaryMessenger
+import io.flutter.plugin.common.EventChannel
+import io.flutter.plugin.common.MessageCodec
+import io.flutter.plugin.common.StandardMethodCodec
+import io.flutter.plugin.common.StandardMessageCodec
+import java.io.ByteArrayOutputStream
+import java.nio.ByteBuffer
+private object ScanApiPigeonUtils {
+
+  fun wrapResult(result: Any?): List<Any?> {
+    return listOf(result)
+  }
+
+  fun wrapError(exception: Throwable): List<Any?> {
+    return if (exception is FlutterError) {
+      listOf(
+        exception.code,
+        exception.message,
+        exception.details
+      )
+    } else {
+      listOf(
+        exception.javaClass.simpleName,
+        exception.toString(),
+        "Cause: " + exception.cause + ", Stacktrace: " + Log.getStackTraceString(exception)
+      )
+    }
+  }
+  fun doubleEquals(a: Double, b: Double): Boolean {
+    // Normalize -0.0 to 0.0 and handle NaN equality.
+    return (if (a == 0.0) 0.0 else a) == (if (b == 0.0) 0.0 else b) || (a.isNaN() && b.isNaN())
+  }
+
+  fun floatEquals(a: Float, b: Float): Boolean {
+    // Normalize -0.0 to 0.0 and handle NaN equality.
+    return (if (a == 0.0f) 0.0f else a) == (if (b == 0.0f) 0.0f else b) || (a.isNaN() && b.isNaN())
+  }
+
+  fun doubleHash(d: Double): Int {
+    // Normalize -0.0 to 0.0 and handle NaN to ensure consistent hash codes.
+    val normalized = if (d == 0.0) 0.0 else d
+    val bits = java.lang.Double.doubleToLongBits(normalized)
+    return (bits xor (bits ushr 32)).toInt()
+  }
+
+  fun floatHash(f: Float): Int {
+    // Normalize -0.0 to 0.0 and handle NaN to ensure consistent hash codes.
+    val normalized = if (f == 0.0f) 0.0f else f
+    return java.lang.Float.floatToIntBits(normalized)
+  }
+
+  fun deepEquals(a: Any?, b: Any?): Boolean {
+    if (a === b) {
+      return true
+    }
+    if (a == null || b == null) {
+      return false
+    }
+    if (a is ByteArray && b is ByteArray) {
+      return a.contentEquals(b)
+    }
+    if (a is IntArray && b is IntArray) {
+      return a.contentEquals(b)
+    }
+    if (a is LongArray && b is LongArray) {
+      return a.contentEquals(b)
+    }
+    if (a is DoubleArray && b is DoubleArray) {
+      if (a.size != b.size) return false
+      for (i in a.indices) {
+        if (!doubleEquals(a[i], b[i])) return false
+      }
+      return true
+    }
+    if (a is FloatArray && b is FloatArray) {
+      if (a.size != b.size) return false
+      for (i in a.indices) {
+        if (!floatEquals(a[i], b[i])) return false
+      }
+      return true
+    }
+    if (a is Array<*> && b is Array<*>) {
+      if (a.size != b.size) return false
+      for (i in a.indices) {
+        if (!deepEquals(a[i], b[i])) return false
+      }
+      return true
+    }
+    if (a is List<*> && b is List<*>) {
+      if (a.size != b.size) return false
+      val iterA = a.iterator()
+      val iterB = b.iterator()
+      while (iterA.hasNext() && iterB.hasNext()) {
+        if (!deepEquals(iterA.next(), iterB.next())) return false
+      }
+      return true
+    }
+    if (a is Map<*, *> && b is Map<*, *>) {
+      if (a.size != b.size) return false
+      for (entry in a) {
+        val key = entry.key
+        var found = false
+        for (bEntry in b) {
+          if (deepEquals(key, bEntry.key)) {
+            if (deepEquals(entry.value, bEntry.value)) {
+              found = true
+              break
+            } else {
+              return false
+            }
+          }
+        }
+        if (!found) return false
+      }
+      return true
+    }
+    if (a is Double && b is Double) {
+      return doubleEquals(a, b)
+    }
+    if (a is Float && b is Float) {
+      return floatEquals(a, b)
+    }
+    return a == b
+  }
+
+  fun deepHash(value: Any?): Int {
+    return when (value) {
+      null -> 0
+      is ByteArray -> value.contentHashCode()
+      is IntArray -> value.contentHashCode()
+      is LongArray -> value.contentHashCode()
+      is DoubleArray -> {
+        var result = 1
+        for (item in value) {
+          result = 31 * result + doubleHash(item)
+        }
+        result
+      }
+      is FloatArray -> {
+        var result = 1
+        for (item in value) {
+          result = 31 * result + floatHash(item)
+        }
+        result
+      }
+      is Array<*> -> {
+        var result = 1
+        for (item in value) {
+          result = 31 * result + deepHash(item)
+        }
+        result
+      }
+      is List<*> -> {
+        var result = 1
+        for (item in value) {
+          result = 31 * result + deepHash(item)
+        }
+        result
+      }
+      is Map<*, *> -> {
+        var result = 0
+        for (entry in value) {
+          result += ((deepHash(entry.key) * 31) xor deepHash(entry.value))
+        }
+        result
+      }
+      is Double -> doubleHash(value)
+      is Float -> floatHash(value)
+      else -> value.hashCode()
+    }
+  }
+
+}
+
+/**
+ * Error class for passing custom error details to Flutter via a thrown PlatformException.
+ * @property code The error code.
+ * @property message The error message.
+ * @property details The error details. Must be a datatype supported by the api codec.
+ */
+class FlutterError (
+  val code: String,
+  override val message: String? = null,
+  val details: Any? = null
+) : RuntimeException()
+
+/**
+ * 识别类型。
+ *
+ * **即使首版只做条码，这个参数也必须先留出来**（07 §「待确认：VIN 码与车牌
+ * 识别的技术路径」）：车牌走的是专用 OCR、VIN 印刷字符走通用 OCR + 校验位
+ * 过滤，技术路径还没定。参数先在 schema 里占好位，后面加识别类型就不用改
+ * 接口签名——改签名意味着三端生成物和所有调用点一起动。
+ */
+enum class ScanMode(val raw: Int) {
+  /** 二维码 / 条形码（商品、库位）。 */
+  BARCODE(0),
+  /** VIN 码。可能是 Code 39 条码，也可能只有印刷字符。 */
+  VIN(1),
+  /** 车牌。 */
+  PLATE(2);
+
+  companion object {
+    fun ofRaw(raw: Int): ScanMode? {
+      return values().firstOrNull { it.raw == raw }
+    }
+  }
+}
+
+/**
+ * 扫码入参。
+ *
+ * Generated class from Pigeon that represents data sent in messages.
+ */
+data class ScanOptions (
+  /** 识别类型。 */
+  val mode: ScanMode,
+  /** 超时毫秒数。null 表示不超时，由用户手动取消。 */
+  val timeoutMs: Long? = null,
+  /** 是否默认打开闪光灯。 */
+  val torchEnabled: Boolean? = null,
+  /** 扫码页标题。由调用方传，`native_scan` 不依赖任何 i18n 资源。 */
+  val title: String? = null
+)
+ {
+  companion object {
+    fun fromList(pigeonVar_list: List<Any?>): ScanOptions {
+      val mode = pigeonVar_list[0] as ScanMode
+      val timeoutMs = pigeonVar_list[1] as Long?
+      val torchEnabled = pigeonVar_list[2] as Boolean?
+      val title = pigeonVar_list[3] as String?
+      return ScanOptions(mode, timeoutMs, torchEnabled, title)
+    }
+  }
+  fun toList(): List<Any?> {
+    return listOf(
+      mode,
+      timeoutMs,
+      torchEnabled,
+      title,
+    )
+  }
+  override fun equals(other: Any?): Boolean {
+    if (other == null || other.javaClass != javaClass) {
+      return false
+    }
+    if (this === other) {
+      return true
+    }
+    val other = other as ScanOptions
+    return ScanApiPigeonUtils.deepEquals(this.mode, other.mode) && ScanApiPigeonUtils.deepEquals(this.timeoutMs, other.timeoutMs) && ScanApiPigeonUtils.deepEquals(this.torchEnabled, other.torchEnabled) && ScanApiPigeonUtils.deepEquals(this.title, other.title)
+  }
+
+  override fun hashCode(): Int {
+    var result = javaClass.hashCode()
+    result = 31 * result + ScanApiPigeonUtils.deepHash(this.mode)
+    result = 31 * result + ScanApiPigeonUtils.deepHash(this.timeoutMs)
+    result = 31 * result + ScanApiPigeonUtils.deepHash(this.torchEnabled)
+    result = 31 * result + ScanApiPigeonUtils.deepHash(this.title)
+    return result
+  }
+  override fun toString(): String {
+    return "ScanOptions(mode=$mode, timeoutMs=$timeoutMs, torchEnabled=$torchEnabled, title=$title)"
+  }
+}
+
+/**
+ * 扫码结果。
+ *
+ * Generated class from Pigeon that represents data sent in messages.
+ */
+data class ScanResult (
+  /** 实际生效的识别类型。 */
+  val mode: ScanMode,
+  /** 识别到的文本。 */
+  val value: String,
+  /** 从打开扫码页到出结果的耗时，供埋点用（见 13 的 `scan_succeeded`）。 */
+  val durationMs: Long,
+  /** 原始码制（如 `CODE_39` / `QR_CODE`）。OCR 路径下为 null。 */
+  val rawFormat: String? = null
+)
+ {
+  companion object {
+    fun fromList(pigeonVar_list: List<Any?>): ScanResult {
+      val mode = pigeonVar_list[0] as ScanMode
+      val value = pigeonVar_list[1] as String
+      val durationMs = pigeonVar_list[2] as Long
+      val rawFormat = pigeonVar_list[3] as String?
+      return ScanResult(mode, value, durationMs, rawFormat)
+    }
+  }
+  fun toList(): List<Any?> {
+    return listOf(
+      mode,
+      value,
+      durationMs,
+      rawFormat,
+    )
+  }
+  override fun equals(other: Any?): Boolean {
+    if (other == null || other.javaClass != javaClass) {
+      return false
+    }
+    if (this === other) {
+      return true
+    }
+    val other = other as ScanResult
+    return ScanApiPigeonUtils.deepEquals(this.mode, other.mode) && ScanApiPigeonUtils.deepEquals(this.value, other.value) && ScanApiPigeonUtils.deepEquals(this.durationMs, other.durationMs) && ScanApiPigeonUtils.deepEquals(this.rawFormat, other.rawFormat)
+  }
+
+  override fun hashCode(): Int {
+    var result = javaClass.hashCode()
+    result = 31 * result + ScanApiPigeonUtils.deepHash(this.mode)
+    result = 31 * result + ScanApiPigeonUtils.deepHash(this.value)
+    result = 31 * result + ScanApiPigeonUtils.deepHash(this.durationMs)
+    result = 31 * result + ScanApiPigeonUtils.deepHash(this.rawFormat)
+    return result
+  }
+  override fun toString(): String {
+    return "ScanResult(mode=$mode, value=$value, durationMs=$durationMs, rawFormat=$rawFormat)"
+  }
+}
+private open class ScanApiPigeonCodec : StandardMessageCodec() {
+  override fun readValueOfType(type: Byte, buffer: ByteBuffer): Any? {
+    return when (type) {
+      129.toByte() -> {
+        return (readValue(buffer) as Long?)?.let {
+          ScanMode.ofRaw(it.toInt())
+        }
+      }
+      130.toByte() -> {
+        return (readValue(buffer) as? List<Any?>)?.let {
+          ScanOptions.fromList(it)
+        }
+      }
+      131.toByte() -> {
+        return (readValue(buffer) as? List<Any?>)?.let {
+          ScanResult.fromList(it)
+        }
+      }
+      else -> super.readValueOfType(type, buffer)
+    }
+  }
+  override fun writeValue(stream: ByteArrayOutputStream, value: Any?)   {
+    when (value) {
+      is ScanMode -> {
+        stream.write(129)
+        writeValue(stream, value.raw.toLong())
+      }
+      is ScanOptions -> {
+        stream.write(130)
+        writeValue(stream, value.toList())
+      }
+      is ScanResult -> {
+        stream.write(131)
+        writeValue(stream, value.toList())
+      }
+      else -> super.writeValue(stream, value)
+    }
+  }
+}
+
+
+/**
+ * Dart → 原生。
+ *
+ * 用户取消、权限拒绝、平台未实现这三类都通过 `FlutterError` 抛出，
+ * 由 Dart 侧的公共 API 转成 `NativeScanException`——**原生异常类型
+ * （`PlatformException`）不允许直接抛到业务代码里**（07 §使用规则）。
+ *
+ * Generated interface from Pigeon that represents a handler of messages from Flutter.
+ */
+interface ScanHostApi {
+  /**
+   * 打开扫码页并等待一次结果。
+   *
+   * 用户取消时抛 code 为 `CANCELLED` 的错误，而不是返回 null——
+   * 「取消」和「扫到了空字符串」必须能区分开。
+   */
+  fun startScan(options: ScanOptions, callback: (Result<ScanResult>) -> Unit)
+  /**
+   * 当前平台是否支持指定识别类型。
+   *
+   * 车牌识别的技术路径未定（见上），首版可能只有部分平台支持；
+   * 调用方应当先查这个再决定要不要显示入口，而不是等 `startScan` 抛错。
+   */
+  fun isModeSupported(mode: ScanMode): Boolean
+
+  companion object {
+    /** The codec used by ScanHostApi. */
+    val codec: MessageCodec<Any?> by lazy {
+      ScanApiPigeonCodec()
+    }
+    /** Sets up an instance of `ScanHostApi` to handle messages through the `binaryMessenger`. */
+    @JvmOverloads
+    fun setUp(binaryMessenger: BinaryMessenger, api: ScanHostApi?, messageChannelSuffix: String = "") {
+      val separatedMessageChannelSuffix = if (messageChannelSuffix.isNotEmpty()) ".$messageChannelSuffix" else ""
+      run {
+        val channel = BasicMessageChannel<Any?>(binaryMessenger, "dev.flutter.pigeon.native_scan.ScanHostApi.startScan$separatedMessageChannelSuffix", codec)
+        if (api != null) {
+          channel.setMessageHandler { message, reply ->
+            val args = message as List<Any?>
+            val optionsArg = args[0] as ScanOptions
+            api.startScan(optionsArg) { result: Result<ScanResult> ->
+              val error = result.exceptionOrNull()
+              if (error != null) {
+                reply.reply(ScanApiPigeonUtils.wrapError(error))
+              } else {
+                val data = result.getOrNull()
+                reply.reply(ScanApiPigeonUtils.wrapResult(data))
+              }
+            }
+          }
+        } else {
+          channel.setMessageHandler(null)
+        }
+      }
+      run {
+        val channel = BasicMessageChannel<Any?>(binaryMessenger, "dev.flutter.pigeon.native_scan.ScanHostApi.isModeSupported$separatedMessageChannelSuffix", codec)
+        if (api != null) {
+          channel.setMessageHandler { message, reply ->
+            val args = message as List<Any?>
+            val modeArg = args[0] as ScanMode
+            val wrapped: List<Any?> = try {
+              listOf(api.isModeSupported(modeArg))
+            } catch (exception: Throwable) {
+              ScanApiPigeonUtils.wrapError(exception)
+            }
+            reply.reply(wrapped)
+          }
+        } else {
+          channel.setMessageHandler(null)
+        }
+      }
+    }
+  }
+}

packages/native_scan/example/.gitignore

@@ -0,0 +1,45 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.build/
+.buildlog/
+.history
+.svn/
+.swiftpm/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins-dependencies
+.pub-cache/
+.pub/
+/build/
+/coverage/
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release

packages/native_scan/example/README.md

@@ -0,0 +1,17 @@
+# native_scan_example
+
+Demonstrates how to use the native_scan plugin.
+
+## Getting Started
+
+This project is a starting point for a Flutter application.
+
+A few resources to get you started if this is your first Flutter project:
+
+- [Learn Flutter](https://docs.flutter.dev/get-started/learn-flutter)
+- [Write your first Flutter app](https://docs.flutter.dev/get-started/codelab)
+- [Flutter learning resources](https://docs.flutter.dev/reference/learning-resources)
+
+For help getting started with Flutter development, view the
+[online documentation](https://docs.flutter.dev/), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.

packages/native_scan/example/analysis_options.yaml

@@ -0,0 +1 @@
+include: ../../../analysis_options.yaml

packages/native_scan/example/android/.gitignore

@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks

packages/native_scan/example/android/app/build.gradle.kts

@@ -0,0 +1,45 @@
+plugins {
+    id("com.android.application")
+    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
+    id("dev.flutter.flutter-gradle-plugin")
+}
+
+android {
+    namespace = "com.conti.native_scan_example"
+    compileSdk = flutter.compileSdkVersion
+    ndkVersion = flutter.ndkVersion
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId = "com.conti.native_scan_example"
+        // You can update the following values to match your application needs.
+        // For more information, see: https://flutter.dev/to/review-gradle-config.
+        minSdk = flutter.minSdkVersion
+        targetSdk = flutter.targetSdkVersion
+        versionCode = flutter.versionCode
+        versionName = flutter.versionName
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig = signingConfigs.getByName("debug")
+        }
+    }
+}
+
+kotlin {
+    compilerOptions {
+        jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
+    }
+}
+
+flutter {
+    source = "../.."
+}

packages/native_scan/example/android/app/src/debug/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

packages/native_scan/example/android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,45 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <application
+        android:label="native_scan_example"
+        android:name="${applicationName}"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:launchMode="singleTop"
+            android:taskAffinity=""
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+    <!-- Required to query activities that can process text, see:
+         https://developer.android.com/training/package-visibility and
+         https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT.
+
+         In particular, this is used by the Flutter engine in io.flutter.plugin.text.ProcessTextPlugin. -->
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.PROCESS_TEXT"/>
+            <data android:mimeType="text/plain"/>
+        </intent>
+    </queries>
+</manifest>

packages/native_scan/example/android/app/src/main/kotlin/com/conti/native_scan_example/MainActivity.kt

@@ -0,0 +1,5 @@
+package com.conti.native_scan_example
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity : FlutterActivity()

packages/native_scan/example/android/app/src/main/res/drawable-v21/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

packages/native_scan/example/android/app/src/main/res/drawable/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

packages/native_scan/example/android/app/src/main/res/values-night/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

packages/native_scan/example/android/app/src/main/res/values/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

packages/native_scan/example/android/app/src/profile/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

packages/native_scan/example/android/build.gradle.kts

@@ -0,0 +1,24 @@
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+val newBuildDir: Directory =
+    rootProject.layout.buildDirectory
+        .dir("../../build")
+        .get()
+rootProject.layout.buildDirectory.value(newBuildDir)
+
+subprojects {
+    val newSubprojectBuildDir: Directory = newBuildDir.dir(project.name)
+    project.layout.buildDirectory.value(newSubprojectBuildDir)
+}
+subprojects {
+    project.evaluationDependsOn(":app")
+}
+
+tasks.register<Delete>("clean") {
+    delete(rootProject.layout.buildDirectory)
+}

packages/native_scan/example/android/gradle.properties

@@ -0,0 +1,6 @@
+org.gradle.jvmargs=-Xmx8G -XX:MaxMetaspaceSize=4G -XX:ReservedCodeCacheSize=512m -XX:+HeapDumpOnOutOfMemoryError
+android.useAndroidX=true
+# This newDsl flag was added by the Flutter template
+android.newDsl=false
+# This builtInKotlin flag was added by the Flutter template
+android.builtInKotlin=false

packages/native_scan/example/android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-all.zip

packages/native_scan/example/android/settings.gradle.kts

@@ -0,0 +1,26 @@
+pluginManagement {
+    val flutterSdkPath =
+        run {
+            val properties = java.util.Properties()
+            file("local.properties").inputStream().use { properties.load(it) }
+            val flutterSdkPath = properties.getProperty("flutter.sdk")
+            require(flutterSdkPath != null) { "flutter.sdk not set in local.properties" }
+            flutterSdkPath
+        }
+
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
+
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+plugins {
+    id("dev.flutter.flutter-plugin-loader") version "1.0.0"
+    id("com.android.application") version "9.0.1" apply false
+    id("org.jetbrains.kotlin.android") version "2.3.20" apply false
+}
+
+include(":app")

packages/native_scan/example/integration_test/plugin_integration_test.dart

@@ -0,0 +1,19 @@
+// 原生侧接通后才能跑的集成测试。
+//
+// 现在 Kotlin / Swift 实现还是空的（见 07），所以只验证「能力查询」这条
+// 不会崩、并且**如实返回 false**——静默返回 true 才是危险的假象。
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:integration_test/integration_test.dart';
+import 'package:native_scan/native_scan.dart';
+
+void main() {
+  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
+
+  testWidgets('isModeSupported 在原生未实现时返回 false 而不是抛错', (WidgetTester tester) async {
+    final NativeScan plugin = NativeScan();
+
+    // TODO(native): 原生实现落地后改为 expect(..., isTrue)，并补 startScan 的用例。
+    expect(await plugin.isModeSupported(ScanMode.barcode), isFalse);
+  });
+}

packages/native_scan/example/ios/.gitignore

@@ -0,0 +1,34 @@
+**/dgph
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+**/*sync/
+.sconsign.dblite
+.tags*
+**/.vagrant/
+**/DerivedData/
+Icon?
+**/Pods/
+**/.symlinks/
+profile
+xcuserdata
+**/.generated/
+Flutter/App.framework
+Flutter/Flutter.framework
+Flutter/Flutter.podspec
+Flutter/Generated.xcconfig
+Flutter/ephemeral/
+Flutter/app.flx
+Flutter/app.zip
+Flutter/flutter_assets/
+Flutter/flutter_export_environment.sh
+ServiceDefinitions.json
+Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3

packages/native_scan/example/ios/Flutter/AppFrameworkInfo.plist

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>en</string>
+  <key>CFBundleExecutable</key>
+  <string>App</string>
+  <key>CFBundleIdentifier</key>
+  <string>io.flutter.flutter.app</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>App</string>
+  <key>CFBundlePackageType</key>
+  <string>FMWK</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>1.0</string>
+</dict>
+</plist>

packages/native_scan/example/ios/Flutter/Debug.xcconfig

@@ -0,0 +1 @@
+#include "Generated.xcconfig"

packages/native_scan/example/ios/Flutter/Release.xcconfig

@@ -0,0 +1 @@
+#include "Generated.xcconfig"

packages/native_scan/example/ios/Runner.xcodeproj/project.pbxproj

@@ -0,0 +1,648 @@
+// !$*UTF8*$!
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+
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+			isa = PBXGroup;
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+		};
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+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+
+/* Begin XCLocalSwiftPackageReference section */
+		781AD8BC2B33823900A9FFBB /* XCLocalSwiftPackageReference "Flutter/ephemeral/Packages/FlutterGeneratedPluginSwiftPackage" */ = {
+			isa = XCLocalSwiftPackageReference;
+			relativePath = Flutter/ephemeral/Packages/FlutterGeneratedPluginSwiftPackage;
+		};
+/* End XCLocalSwiftPackageReference section */
+
+/* Begin XCSwiftPackageProductDependency section */
+		78A3181F2AECB46A00862997 /* FlutterGeneratedPluginSwiftPackage */ = {
+			isa = XCSwiftPackageProductDependency;
+			productName = FlutterGeneratedPluginSwiftPackage;
+		};
+/* End XCSwiftPackageProductDependency section */
+	};
+	rootObject = 97C146E61CF9000F007C117D /* Project object */;
+}

packages/native_scan/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>

packages/native_scan/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

packages/native_scan/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>

packages/native_scan/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

@@ -0,0 +1,119 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1510"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <PreActions>
+         <ExecutionAction
+            ActionType = "Xcode.IDEStandardExecutionActionsCore.ExecutionActionType.ShellScriptAction">
+            <ActionContent
+               title = "Run Prepare Flutter Framework Script"
+               scriptText = "/bin/sh &quot;$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh&quot; prepare&#10;">
+               <EnvironmentBuildable>
+                  <BuildableReference
+                     BuildableIdentifier = "primary"
+                     BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+                     BuildableName = "Runner.app"
+                     BlueprintName = "Runner"
+                     ReferencedContainer = "container:Runner.xcodeproj">
+                  </BuildableReference>
+               </EnvironmentBuildable>
+            </ActionContent>
+         </ExecutionAction>
+      </PreActions>
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+               BuildableName = "Runner.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      customLLDBInitFile = "$(SRCROOT)/Flutter/ephemeral/flutter_lldbinit"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+         <TestableReference
+            skipped = "NO"
+            parallelizable = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "331C8080294A63A400263BE5"
+               BuildableName = "RunnerTests.xctest"
+               BlueprintName = "RunnerTests"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      customLLDBInitFile = "$(SRCROOT)/Flutter/ephemeral/flutter_lldbinit"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      enableGPUValidationMode = "1"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

packages/native_scan/example/ios/Runner.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>

packages/native_scan/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

packages/native_scan/example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>

packages/native_scan/example/ios/Runner/AppDelegate.swift

@@ -0,0 +1,16 @@
+import Flutter
+import UIKit
+
+@main
+@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
+  override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+  ) -> Bool {
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+
+  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
+    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
+  }
+}

packages/native_scan/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,122 @@
+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

packages/native_scan/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json

@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

packages/native_scan/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md

@@ -0,0 +1,5 @@
+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.

packages/native_scan/example/ios/Runner/Base.lproj/LaunchScreen.storyboard

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
+</document>

packages/native_scan/example/ios/Runner/Base.lproj/Main.storyboard

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+    </dependencies>
+    <scenes>
+        <!--Flutter View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="FlutterViewController" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
+                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>

packages/native_scan/example/ios/Runner/Info.plist

@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CADisableMinimumFrameDurationOnPhone</key>
+	<true/>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleDisplayName</key>
+	<string>Native Scan</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>native_scan_example</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneClassName</key>
+					<string>UIWindowScene</string>
+					<key>UISceneConfigurationName</key>
+					<string>flutter</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
+	<key>UIApplicationSupportsIndirectInputEvents</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>

packages/native_scan/example/ios/Runner/Runner-Bridging-Header.h

@@ -0,0 +1 @@
+#import "GeneratedPluginRegistrant.h"

packages/native_scan/example/ios/Runner/SceneDelegate.swift

@@ -0,0 +1,6 @@
+import Flutter
+import UIKit
+
+class SceneDelegate: FlutterSceneDelegate {
+
+}

packages/native_scan/example/ios/RunnerTests/RunnerTests.swift

@@ -0,0 +1,29 @@
+import Flutter
+import UIKit
+import XCTest
+
+// If your plugin has been explicitly set to "type: .dynamic" in the Package.swift,
+// you will need to add your plugin as a dependency of RunnerTests within Xcode.
+
+@testable import native_scan
+
+// This demonstrates a simple unit test of the Swift portion of this plugin's implementation.
+//
+// See https://developer.apple.com/documentation/xctest for more information about using XCTest.
+
+class RunnerTests: XCTestCase {
+
+  func testGetPlatformVersion() {
+    let plugin = NativeScanPlugin()
+
+    let call = FlutterMethodCall(methodName: "getPlatformVersion", arguments: [])
+
+    let resultExpectation = expectation(description: "result block must be called.")
+    plugin.handle(call) { result in
+      XCTAssertEqual(result as! String, "iOS " + UIDevice.current.systemVersion)
+      resultExpectation.fulfill()
+    }
+    waitForExpectations(timeout: 1)
+  }
+
+}

packages/native_scan/example/lib/main.dart

@@ -0,0 +1,70 @@
+// native_scan 的最小演示壳。
+//
+// 只用来手工验证原生实现接没接上：Kotlin / Swift 侧还没写（见 07），
+// 所以现在点「扫码」必然走到 UNSUPPORTED_PLATFORM 分支——这是预期结果，
+// 也正好演示了 07 §「OHOS 后续演进」要求的**不静默返回假数据**。
+
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:native_scan/native_scan.dart';
+
+void main() {
+  runApp(const ExampleApp());
+}
+
+/// 演示用的根 Widget。
+class ExampleApp extends StatefulWidget {
+  /// 构造。
+  const ExampleApp({super.key});
+
+  @override
+  State<ExampleApp> createState() => _ExampleAppState();
+}
+
+class _ExampleAppState extends State<ExampleApp> {
+  final NativeScan _scan = NativeScan();
+  String _result = '未扫码';
+
+  Future<void> _startScan() async {
+    try {
+      final ScanResult result = await _scan.startScan(
+        ScanOptions(mode: ScanMode.barcode, title: '扫描商品条码'),
+      );
+      if (!mounted) return;
+      setState(() {
+        _result = '${result.value}（${result.durationMs}ms）';
+      });
+    } on NativeScanException catch (e) {
+      if (!mounted) return;
+      // 取消不是错误，静默回到原状态即可（07 §使用规则）。
+      setState(() {
+        _result = e.isCancelled ? '已取消' : '${e.code}: ${e.message}';
+      });
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        appBar: AppBar(title: const Text('native_scan example')),
+        body: Center(
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: <Widget>[
+              Text(_result),
+              const SizedBox(height: 16),
+              FilledButton(
+                onPressed: () {
+                  unawaited(_startScan());
+                },
+                child: const Text('扫码'),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}

packages/native_scan/example/pubspec.yaml

@@ -0,0 +1,22 @@
+name: native_scan_example
+description: native_scan 的手动验证入口。补完原生实现后用它单独跑扫码，不用起整个 App。
+publish_to: none
+resolution: workspace
+
+environment:
+  sdk: ^3.12.0
+
+dependencies:
+  flutter:
+    sdk: flutter
+  native_scan: ^0.1.0
+
+dev_dependencies:
+  flutter_lints: ^6.0.0
+  flutter_test:
+    sdk: flutter
+  integration_test:
+    sdk: flutter
+
+flutter:
+  uses-material-design: true

packages/native_scan/example/test/widget_test.dart

@@ -0,0 +1,17 @@
+// example 的 smoke test：只验证壳能起来。
+//
+// 真正的扫码行为依赖原生实现，单测里跑不了；原生接通后请写
+// integration_test 而不是在这里 mock。
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:native_scan_example/main.dart';
+
+void main() {
+  testWidgets('渲染出扫码入口', (WidgetTester tester) async {
+    await tester.pumpWidget(const ExampleApp());
+
+    expect(find.text('未扫码'), findsOneWidget);
+    expect(find.byWidgetPredicate((Widget w) => w is FilledButton), findsOneWidget);
+  });
+}

packages/native_scan/ios/.gitignore

@@ -0,0 +1,38 @@
+.idea/
+.vagrant/
+.sconsign.dblite
+.svn/
+
+.DS_Store
+*.swp
+profile
+
+DerivedData/
+build/
+GeneratedPluginRegistrant.h
+GeneratedPluginRegistrant.m
+
+.generated/
+
+*.pbxuser
+*.mode1v3
+*.mode2v3
+*.perspectivev3
+
+!default.pbxuser
+!default.mode1v3
+!default.mode2v3
+!default.perspectivev3
+
+xcuserdata
+
+*.moved-aside
+
+*.pyc
+*sync/
+Icon?
+.tags*
+
+/Flutter/Generated.xcconfig
+/Flutter/ephemeral/
+/Flutter/flutter_export_environment.sh

packages/native_scan/ios/native_scan.podspec

@@ -0,0 +1,29 @@
+#
+# To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html.
+# Run `pod lib lint native_scan.podspec` to validate before publishing.
+#
+Pod::Spec.new do |s|
+  s.name             = 'native_scan'
+  s.version          = '0.0.1'
+  s.summary          = 'A new Flutter plugin project.'
+  s.description      = <<-DESC
+A new Flutter plugin project.
+                       DESC
+  s.homepage         = 'http://example.com'
+  s.license          = { :file => '../LICENSE' }
+  s.author           = { 'Your Company' => 'email@example.com' }
+  s.source           = { :path => '.' }
+  s.source_files = 'native_scan/Sources/native_scan/**/*'
+  s.dependency 'Flutter'
+  s.platform = :ios, '13.0'
+
+  # Flutter.framework does not contain a i386 slice.
+  s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386' }
+  s.swift_version = '5.0'
+
+  # If your plugin requires a privacy manifest, for example if it uses any
+  # required reason APIs, update the PrivacyInfo.xcprivacy file to describe your
+  # plugin's privacy impact, and then uncomment this line. For more information,
+  # see https://developer.apple.com/documentation/bundleresources/privacy_manifest_files
+  # s.resource_bundles = {'native_scan_privacy' => ['native_scan/Sources/native_scan/PrivacyInfo.xcprivacy']}
+end

packages/native_scan/ios/native_scan/Package.swift

@@ -0,0 +1,36 @@
+// swift-tools-version: 5.9
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "native_scan",
+    platforms: [
+        .iOS("13.0")
+    ],
+    products: [
+        .library(name: "native-scan", targets: ["native_scan"])
+    ],
+    dependencies: [
+        .package(name: "FlutterFramework", path: "../FlutterFramework")
+    ],
+    targets: [
+        .target(
+            name: "native_scan",
+            dependencies: [
+                .product(name: "FlutterFramework", package: "FlutterFramework")
+            ],
+            resources: [
+                // If your plugin requires a privacy manifest, for example if it uses any required
+                // reason APIs, update the PrivacyInfo.xcprivacy file to describe your plugin's
+                // privacy impact, and then uncomment these lines. For more information, see
+                // https://developer.apple.com/documentation/bundleresources/privacy_manifest_files
+                // .process("PrivacyInfo.xcprivacy"),
+
+                // If you have other resources that need to be bundled with your plugin, refer to
+                // the following instructions to add them:
+                // https://developer.apple.com/documentation/xcode/bundling-resources-with-a-swift-package
+            ]
+        )
+    ]
+)

packages/native_scan/ios/native_scan/Sources/native_scan/NativeScanPlugin.swift

@@ -0,0 +1,21 @@
+import Flutter
+import UIKit
+
+/// 扫码插件的 iOS 入口。
+///
+/// TODO(native): 手写原生实现本次不在范围内，见 conti-docs/07-native-integration.md。
+/// 补完时需要做的事：
+///   1. 让某个类实现 pigeon 生成的 `ScanHostApi`（见 ScanApi.g.swift，不要手改生成物）；
+///   2. 在 register 里 `ScanHostApiSetup.setUp(binaryMessenger:api:)`；
+///   3. Info.plist 需要 NSCameraUsageDescription，否则相机权限弹窗会直接崩；
+///   4. 取消 / 权限拒绝 / 能力不可用必须回 FlutterError，code 用
+///      CANCELLED / PERMISSION_DENIED / UNAVAILABLE —— 与 Dart 侧
+///      NativeScanErrorCode 一一对应，**不允许返回占位假数据**。
+///
+/// 在此之前，Dart 侧调用会收到 MissingPluginException，
+/// 并被 NativeScan 转成 UNSUPPORTED_PLATFORM，属预期行为。
+public class NativeScanPlugin: NSObject, FlutterPlugin {
+  public static func register(with registrar: FlutterPluginRegistrar) {
+    // TODO(native): ScanHostApiSetup.setUp(binaryMessenger: registrar.messenger(), api: ScanApiImpl())
+  }
+}

packages/native_scan/ios/native_scan/Sources/native_scan/PrivacyInfo.xcprivacy

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>NSPrivacyTrackingDomains</key>
+	<array/>
+	<key>NSPrivacyAccessedAPITypes</key>
+	<array/>
+	<key>NSPrivacyCollectedDataTypes</key>
+	<array/>
+	<key>NSPrivacyTracking</key>
+	<false/>
+</dict>
+</plist>

packages/native_scan/ios/native_scan/Sources/native_scan/ScanApi.g.swift

@@ -0,0 +1,432 @@
+// Autogenerated from Pigeon (v27.3.0), do not edit directly.
+// See also: https://pub.dev/packages/pigeon
+
+import Foundation
+
+#if os(iOS)
+  import Flutter
+#elseif os(macOS)
+  import FlutterMacOS
+#else
+  #error("Unsupported platform.")
+#endif
+
+/// Error class for passing custom error details to Dart side.
+final class PigeonError: Error {
+  let code: String
+  let message: String?
+  let details: Sendable?
+
+  init(code: String, message: String?, details: Sendable?) {
+    self.code = code
+    self.message = message
+    self.details = details
+  }
+
+  var localizedDescription: String {
+    return
+      "PigeonError(code: \(code), message: \(message ?? "<nil>"), details: \(details ?? "<nil>")"
+  }
+}
+
+private func wrapResult(_ result: Any?) -> [Any?] {
+  return [result]
+}
+
+private func wrapError(_ error: Any) -> [Any?] {
+  if let pigeonError = error as? PigeonError {
+    return [
+      pigeonError.code,
+      pigeonError.message,
+      pigeonError.details,
+    ]
+  }
+  if let flutterError = error as? FlutterError {
+    return [
+      flutterError.code,
+      flutterError.message,
+      flutterError.details,
+    ]
+  }
+  return [
+    "\(error)",
+    "\(Swift.type(of: error))",
+    "Stacktrace: \(Thread.callStackSymbols)",
+  ]
+}
+
+enum ScanApiPigeonInternal {
+  static func isNullish(_ value: Any?) -> Bool {
+    guard let innerValue = value else {
+      return true
+    }
+
+    if case Optional<Any>.some(Optional<Any>.none) = value {
+      return true
+    }
+
+    return innerValue is NSNull
+  }
+  static func doubleEquals(_ lhs: Double, _ rhs: Double) -> Bool {
+    return (lhs.isNaN && rhs.isNaN) || lhs == rhs
+  }
+
+  static func doubleHash(_ value: Double, _ hasher: inout Hasher) {
+    if value.isNaN {
+      hasher.combine(0x7FF8000000000000)
+    } else {
+      // Normalize -0.0 to 0.0
+      hasher.combine(value == 0 ? 0 : value)
+    }
+  }
+
+  static func deepEquals(_ lhs: Any?, _ rhs: Any?) -> Bool {
+    let cleanLhs = nilOrValue(lhs) as Any?
+    let cleanRhs = nilOrValue(rhs) as Any?
+    switch (cleanLhs, cleanRhs) {
+    case (nil, nil):
+      return true
+
+    case (nil, _), (_, nil):
+      return false
+
+    case (let lhs as AnyObject, let rhs as AnyObject) where lhs === rhs:
+      return true
+
+    case is (Void, Void):
+      return true
+
+    case (let lhsArray, let rhsArray) as ([Any?], [Any?]):
+      guard lhsArray.count == rhsArray.count else { return false }
+      for (index, element) in lhsArray.enumerated() {
+        if !deepEquals(element, rhsArray[index]) {
+          return false
+        }
+      }
+      return true
+
+    case (let lhsArray, let rhsArray) as ([Double], [Double]):
+      guard lhsArray.count == rhsArray.count else { return false }
+      for (index, element) in lhsArray.enumerated() {
+        if !doubleEquals(element, rhsArray[index]) {
+          return false
+        }
+      }
+      return true
+
+    case (let lhsDictionary, let rhsDictionary) as ([AnyHashable: Any?], [AnyHashable: Any?]):
+      guard lhsDictionary.count == rhsDictionary.count else { return false }
+      for (lhsKey, lhsValue) in lhsDictionary {
+        var found = false
+        for (rhsKey, rhsValue) in rhsDictionary {
+          if deepEquals(lhsKey, rhsKey) {
+            if deepEquals(lhsValue, rhsValue) {
+              found = true
+              break
+            } else {
+              return false
+            }
+          }
+        }
+        if !found { return false }
+      }
+      return true
+
+    case (let lhs as Double, let rhs as Double):
+      return doubleEquals(lhs, rhs)
+
+    case (let lhsHashable, let rhsHashable) as (AnyHashable, AnyHashable):
+      return lhsHashable == rhsHashable
+
+    default:
+      return false
+    }
+  }
+
+  static func deepHash(value: Any?, hasher: inout Hasher) {
+    let cleanValue = nilOrValue(value) as Any?
+    if let cleanValue = cleanValue {
+      if let doubleValue = cleanValue as? Double {
+        doubleHash(doubleValue, &hasher)
+      } else if let valueList = cleanValue as? [Any?] {
+        for item in valueList {
+          deepHash(value: item, hasher: &hasher)
+        }
+      } else if let valueList = cleanValue as? [Double] {
+        for item in valueList {
+          doubleHash(item, &hasher)
+        }
+      } else if let valueDict = cleanValue as? [AnyHashable: Any?] {
+        var result = 0
+        for (key, value) in valueDict {
+          var entryKeyHasher = Hasher()
+          deepHash(value: key, hasher: &entryKeyHasher)
+          var entryValueHasher = Hasher()
+          deepHash(value: value, hasher: &entryValueHasher)
+          result = result &+ ((entryKeyHasher.finalize() &* 31) ^ entryValueHasher.finalize())
+        }
+        hasher.combine(result)
+      } else if let hashableValue = cleanValue as? AnyHashable {
+        hasher.combine(hashableValue)
+      } else {
+        hasher.combine(String(describing: cleanValue))
+      }
+    } else {
+      hasher.combine(0)
+    }
+  }
+
+}
+
+private func nilOrValue<T>(_ value: Any?) -> T? {
+  if value is NSNull { return nil }
+  return value as! T?
+}
+
+
+/// 识别类型。
+///
+/// **即使首版只做条码，这个参数也必须先留出来**（07 §「待确认：VIN 码与车牌
+/// 识别的技术路径」）：车牌走的是专用 OCR、VIN 印刷字符走通用 OCR + 校验位
+/// 过滤，技术路径还没定。参数先在 schema 里占好位，后面加识别类型就不用改
+/// 接口签名——改签名意味着三端生成物和所有调用点一起动。
+enum ScanMode: Int, CaseIterable {
+  /// 二维码 / 条形码（商品、库位）。
+  case barcode = 0
+  /// VIN 码。可能是 Code 39 条码，也可能只有印刷字符。
+  case vin = 1
+  /// 车牌。
+  case plate = 2
+}
+
+/// 扫码入参。
+///
+/// Generated class from Pigeon that represents data sent in messages.
+struct ScanOptions: Hashable, CustomStringConvertible {
+  /// 识别类型。
+  var mode: ScanMode
+  /// 超时毫秒数。null 表示不超时，由用户手动取消。
+  var timeoutMs: Int64? = nil
+  /// 是否默认打开闪光灯。
+  var torchEnabled: Bool? = nil
+  /// 扫码页标题。由调用方传，`native_scan` 不依赖任何 i18n 资源。
+  var title: String? = nil
+
+
+  // swift-format-ignore: AlwaysUseLowerCamelCase
+  static func fromList(_ pigeonVar_list: [Any?]) -> ScanOptions? {
+    let mode = pigeonVar_list[0] as! ScanMode
+    let timeoutMs: Int64? = nilOrValue(pigeonVar_list[1])
+    let torchEnabled: Bool? = nilOrValue(pigeonVar_list[2])
+    let title: String? = nilOrValue(pigeonVar_list[3])
+
+    return ScanOptions(
+      mode: mode,
+      timeoutMs: timeoutMs,
+      torchEnabled: torchEnabled,
+      title: title
+    )
+  }
+  func toList() -> [Any?] {
+    return [
+      mode,
+      timeoutMs,
+      torchEnabled,
+      title,
+    ]
+  }
+  static func == (lhs: ScanOptions, rhs: ScanOptions) -> Bool {
+    if Swift.type(of: lhs) != Swift.type(of: rhs) {
+      return false
+    }
+    return ScanApiPigeonInternal.deepEquals(lhs.mode, rhs.mode) && ScanApiPigeonInternal.deepEquals(lhs.timeoutMs, rhs.timeoutMs) && ScanApiPigeonInternal.deepEquals(lhs.torchEnabled, rhs.torchEnabled) && ScanApiPigeonInternal.deepEquals(lhs.title, rhs.title)
+  }
+
+  func hash(into hasher: inout Hasher) {
+    hasher.combine("ScanOptions")
+    ScanApiPigeonInternal.deepHash(value: mode, hasher: &hasher)
+    ScanApiPigeonInternal.deepHash(value: timeoutMs, hasher: &hasher)
+    ScanApiPigeonInternal.deepHash(value: torchEnabled, hasher: &hasher)
+    ScanApiPigeonInternal.deepHash(value: title, hasher: &hasher)
+  }
+
+  public var description: String {
+    return "ScanOptions(mode: \(String(describing: mode)), timeoutMs: \(String(describing: timeoutMs)), torchEnabled: \(String(describing: torchEnabled)), title: \(String(describing: title)))"
+  }
+}
+
+/// 扫码结果。
+///
+/// Generated class from Pigeon that represents data sent in messages.
+struct ScanResult: Hashable, CustomStringConvertible {
+  /// 实际生效的识别类型。
+  var mode: ScanMode
+  /// 识别到的文本。
+  var value: String
+  /// 从打开扫码页到出结果的耗时，供埋点用（见 13 的 `scan_succeeded`）。
+  var durationMs: Int64
+  /// 原始码制（如 `CODE_39` / `QR_CODE`）。OCR 路径下为 null。
+  var rawFormat: String? = nil
+
+
+  // swift-format-ignore: AlwaysUseLowerCamelCase
+  static func fromList(_ pigeonVar_list: [Any?]) -> ScanResult? {
+    let mode = pigeonVar_list[0] as! ScanMode
+    let value = pigeonVar_list[1] as! String
+    let durationMs = pigeonVar_list[2] as! Int64
+    let rawFormat: String? = nilOrValue(pigeonVar_list[3])
+
+    return ScanResult(
+      mode: mode,
+      value: value,
+      durationMs: durationMs,
+      rawFormat: rawFormat
+    )
+  }
+  func toList() -> [Any?] {
+    return [
+      mode,
+      value,
+      durationMs,
+      rawFormat,
+    ]
+  }
+  static func == (lhs: ScanResult, rhs: ScanResult) -> Bool {
+    if Swift.type(of: lhs) != Swift.type(of: rhs) {
+      return false
+    }
+    return ScanApiPigeonInternal.deepEquals(lhs.mode, rhs.mode) && ScanApiPigeonInternal.deepEquals(lhs.value, rhs.value) && ScanApiPigeonInternal.deepEquals(lhs.durationMs, rhs.durationMs) && ScanApiPigeonInternal.deepEquals(lhs.rawFormat, rhs.rawFormat)
+  }
+
+  func hash(into hasher: inout Hasher) {
+    hasher.combine("ScanResult")
+    ScanApiPigeonInternal.deepHash(value: mode, hasher: &hasher)
+    ScanApiPigeonInternal.deepHash(value: value, hasher: &hasher)
+    ScanApiPigeonInternal.deepHash(value: durationMs, hasher: &hasher)
+    ScanApiPigeonInternal.deepHash(value: rawFormat, hasher: &hasher)
+  }
+
+  public var description: String {
+    return "ScanResult(mode: \(String(describing: mode)), value: \(String(describing: value)), durationMs: \(String(describing: durationMs)), rawFormat: \(String(describing: rawFormat)))"
+  }
+}
+
+private class ScanApiPigeonCodecReader: FlutterStandardReader {
+  override func readValue(ofType type: UInt8) -> Any? {
+    switch type {
+    case 129:
+      let enumResultAsInt: Int? = nilOrValue(self.readValue() as! Int?)
+      if let enumResultAsInt = enumResultAsInt {
+        return ScanMode(rawValue: enumResultAsInt)
+      }
+      return nil
+    case 130:
+      return ScanOptions.fromList(self.readValue() as! [Any?])
+    case 131:
+      return ScanResult.fromList(self.readValue() as! [Any?])
+    default:
+      return super.readValue(ofType: type)
+    }
+  }
+}
+
+private class ScanApiPigeonCodecWriter: FlutterStandardWriter {
+  override func writeValue(_ value: Any) {
+    if let value = value as? ScanMode {
+      super.writeByte(129)
+      super.writeValue(value.rawValue)
+    } else if let value = value as? ScanOptions {
+      super.writeByte(130)
+      super.writeValue(value.toList())
+    } else if let value = value as? ScanResult {
+      super.writeByte(131)
+      super.writeValue(value.toList())
+    } else {
+      super.writeValue(value)
+    }
+  }
+}
+
+private class ScanApiPigeonCodecReaderWriter: FlutterStandardReaderWriter {
+  override func reader(with data: Data) -> FlutterStandardReader {
+    return ScanApiPigeonCodecReader(data: data)
+  }
+
+  override func writer(with data: NSMutableData) -> FlutterStandardWriter {
+    return ScanApiPigeonCodecWriter(data: data)
+  }
+}
+
+class ScanApiPigeonCodec: FlutterStandardMessageCodec, @unchecked Sendable {
+  static let shared = ScanApiPigeonCodec(readerWriter: ScanApiPigeonCodecReaderWriter())
+}
+
+
+/// Dart → 原生。
+///
+/// 用户取消、权限拒绝、平台未实现这三类都通过 `FlutterError` 抛出，
+/// 由 Dart 侧的公共 API 转成 `NativeScanException`——**原生异常类型
+/// （`PlatformException`）不允许直接抛到业务代码里**（07 §使用规则）。
+///
+/// Generated protocol from Pigeon that represents a handler of messages from Flutter.
+protocol ScanHostApi {
+  /// 打开扫码页并等待一次结果。
+  ///
+  /// 用户取消时抛 code 为 `CANCELLED` 的错误，而不是返回 null——
+  /// 「取消」和「扫到了空字符串」必须能区分开。
+  func startScan(options: ScanOptions, completion: @escaping (Result<ScanResult, Error>) -> Void)
+  /// 当前平台是否支持指定识别类型。
+  ///
+  /// 车牌识别的技术路径未定（见上），首版可能只有部分平台支持；
+  /// 调用方应当先查这个再决定要不要显示入口，而不是等 `startScan` 抛错。
+  func isModeSupported(mode: ScanMode) throws -> Bool
+}
+
+/// Generated setup class from Pigeon to handle messages through the `binaryMessenger`.
+class ScanHostApiSetup {
+  static var codec: FlutterStandardMessageCodec { ScanApiPigeonCodec.shared }
+  /// Sets up an instance of `ScanHostApi` to handle messages through the `binaryMessenger`.
+  static func setUp(binaryMessenger: FlutterBinaryMessenger, api: ScanHostApi?, messageChannelSuffix: String = "") {
+    let channelSuffix = messageChannelSuffix.count > 0 ? ".\(messageChannelSuffix)" : ""
+    /// 打开扫码页并等待一次结果。
+    ///
+    /// 用户取消时抛 code 为 `CANCELLED` 的错误，而不是返回 null——
+    /// 「取消」和「扫到了空字符串」必须能区分开。
+    let startScanChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.native_scan.ScanHostApi.startScan\(channelSuffix)", binaryMessenger: binaryMessenger, codec: codec)
+    if let api = api {
+      startScanChannel.setMessageHandler { message, reply in
+        let args = message as! [Any?]
+        let optionsArg = args[0] as! ScanOptions
+        api.startScan(options: optionsArg) { result in
+          switch result {
+          case .success(let res):
+            reply(wrapResult(res))
+          case .failure(let error):
+            reply(wrapError(error))
+          }
+        }
+      }
+    } else {
+      startScanChannel.setMessageHandler(nil)
+    }
+    /// 当前平台是否支持指定识别类型。
+    ///
+    /// 车牌识别的技术路径未定（见上），首版可能只有部分平台支持；
+    /// 调用方应当先查这个再决定要不要显示入口，而不是等 `startScan` 抛错。
+    let isModeSupportedChannel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.native_scan.ScanHostApi.isModeSupported\(channelSuffix)", binaryMessenger: binaryMessenger, codec: codec)
+    if let api = api {
+      isModeSupportedChannel.setMessageHandler { message, reply in
+        let args = message as! [Any?]
+        let modeArg = args[0] as! ScanMode
+        do {
+          let result = try api.isModeSupported(mode: modeArg)
+          reply(wrapResult(result))
+        } catch {
+          reply(wrapError(error))
+        }
+      }
+    } else {
+      isModeSupportedChannel.setMessageHandler(nil)
+    }
+  }
+}

packages/native_scan/lib/native_scan.dart

@@ -0,0 +1,98 @@
+/// 扫码能力的对外 API。来源：conti-docs/07-native-integration.md。
+///
+/// **调用方只允许 import 这个文件**，不允许直接 import `src/generated/` 里的
+/// 生成代码（07 §使用规则）。调用方包括 `feature_scan` 和 `core_webview` 的
+/// JSBridge——后者正是 01 里「`core_*` 允许依赖 `native_*`」这条例外存在的
+/// 原因。
+///
+/// 本包按 01 的硬约束**不依赖仓库内任何其他包**（连 `core_foundation` 也不），
+/// 所以这里抛的是包内自定义的 [NativeScanException]；转成统一错误体系里的
+/// `NativeException` 由调用方完成。
+library;
+
+import 'package:flutter/services.dart';
+
+import 'src/generated/scan_api.g.dart';
+
+export 'src/generated/scan_api.g.dart' show ScanMode, ScanOptions, ScanResult;
+
+/// 扫码失败的错误码。
+///
+/// 取值与 12 的 `NativeException.code` 对齐，调用方可以直接透传。
+abstract final class NativeScanErrorCode {
+  /// 用户主动取消。
+  ///
+  /// 这不是异常流程，调用方通常应当静默返回，**不弹错误提示、不上报**。
+  static const String cancelled = 'CANCELLED';
+
+  /// 相机权限被拒绝。
+  static const String permissionDenied = 'PERMISSION_DENIED';
+
+  /// 能力暂时不可用（相机被占用、初始化失败等）。
+  static const String unavailable = 'UNAVAILABLE';
+
+  /// 当前平台没有实现。
+  ///
+  /// 见 07 §「OHOS 后续演进」：**不允许静默返回空值或占位假数据**——
+  /// 静默返回会让"这个平台其实没实现"的问题一直藏到用户手里。
+  static const String unsupportedPlatform = 'UNSUPPORTED_PLATFORM';
+
+  /// 超时。
+  static const String timeout = 'TIMEOUT';
+}
+
+/// 扫码相关的异常。
+class NativeScanException implements Exception {
+  /// [code] 取自 [NativeScanErrorCode]。
+  const NativeScanException(this.code, this.message);
+
+  /// 稳定错误码。
+  final String code;
+
+  /// 面向开发者的描述。**不要直接展示给用户**——文案由调用方按 12 的
+  /// `ErrorPresenter` 决定。
+  final String message;
+
+  /// 是否是用户主动取消。
+  bool get isCancelled => code == NativeScanErrorCode.cancelled;
+
+  @override
+  String toString() => 'NativeScanException($code): $message';
+}
+
+/// 扫码。
+class NativeScan {
+  /// [api] 仅供测试注入；生产走默认实例。
+  NativeScan({ScanHostApi? api}) : _api = api ?? ScanHostApi();
+
+  final ScanHostApi _api;
+
+  /// 打开扫码页并等待一次结果。
+  ///
+  /// 用户取消时抛 [NativeScanException]（`code == CANCELLED`）而不是返回 null——
+  /// 「取消」和「扫到了空字符串」必须能区分开。
+  Future<ScanResult> startScan(ScanOptions options) async {
+    try {
+      return await _api.startScan(options);
+    } on PlatformException catch (e) {
+      // 原生异常类型不外泄（07 §使用规则）。
+      throw NativeScanException(e.code, e.message ?? '扫码失败');
+    } on MissingPluginException {
+      throw const NativeScanException(NativeScanErrorCode.unsupportedPlatform, '当前平台未实现扫码能力');
+    }
+  }
+
+  /// 当前平台是否支持指定识别类型。
+  ///
+  /// 调用方应当先查这个再决定要不要显示入口，而不是等 [startScan] 抛错——
+  /// 车牌识别的技术路径尚未确定（07 待确认项），首版可能只有部分平台支持。
+  Future<bool> isModeSupported(ScanMode mode) async {
+    try {
+      return await _api.isModeSupported(mode);
+    } on PlatformException {
+      return false;
+    } on MissingPluginException {
+      return false;
+    }
+  }
+}

packages/native_scan/lib/src/generated/scan_api.g.dart

@@ -0,0 +1,335 @@
+// Autogenerated from Pigeon (v27.3.0), do not edit directly.
+// See also: https://pub.dev/packages/pigeon
+// ignore_for_file: unused_import, unused_shown_name
+// ignore_for_file: type=lint
+
+import 'dart:async';
+import 'dart:typed_data' show Float64List, Int32List, Int64List;
+
+import 'package:flutter/services.dart';
+import 'package:meta/meta.dart' show immutable, protected, visibleForTesting;
+
+Object? _extractReplyValueOrThrow(
+  List<Object?>? replyList,
+  String channelName, {
+  required bool isNullValid,
+}) {
+  if (replyList == null) {
+    throw PlatformException(
+      code: 'channel-error',
+      message: 'Unable to establish connection on channel: "$channelName".',
+    );
+  } else if (replyList.length > 1) {
+    throw PlatformException(
+      code: replyList[0]! as String,
+      message: replyList[1] as String?,
+      details: replyList[2],
+    );
+  } else if (!isNullValid && (replyList.isNotEmpty && replyList[0] == null)) {
+    throw PlatformException(
+      code: 'null-error',
+      message: 'Host platform returned null value for non-null return value.',
+    );
+  }
+  return replyList.firstOrNull;
+}
+
+bool _deepEquals(Object? a, Object? b) {
+  if (identical(a, b)) {
+    return true;
+  }
+  if (a is double && b is double) {
+    if (a.isNaN && b.isNaN) {
+      return true;
+    }
+    return a == b;
+  }
+  if (a is List && b is List) {
+    return a.length == b.length &&
+        a.indexed.every(((int, dynamic) item) => _deepEquals(item.$2, b[item.$1]));
+  }
+  if (a is Map && b is Map) {
+    if (a.length != b.length) {
+      return false;
+    }
+    for (final MapEntry<Object?, Object?> entryA in a.entries) {
+      bool found = false;
+      for (final MapEntry<Object?, Object?> entryB in b.entries) {
+        if (_deepEquals(entryA.key, entryB.key)) {
+          if (_deepEquals(entryA.value, entryB.value)) {
+            found = true;
+            break;
+          } else {
+            return false;
+          }
+        }
+      }
+      if (!found) {
+        return false;
+      }
+    }
+    return true;
+  }
+  return a == b;
+}
+
+int _deepHash(Object? value) {
+  if (value is List) {
+    return Object.hashAll(value.map(_deepHash));
+  }
+  if (value is Map) {
+    int result = 0;
+    for (final MapEntry<Object?, Object?> entry in value.entries) {
+      result += (_deepHash(entry.key) * 31) ^ _deepHash(entry.value);
+    }
+    return result;
+  }
+  if (value is double && value.isNaN) {
+    // Normalize NaN to a consistent hash.
+    return 0x7FF8000000000000.hashCode;
+  }
+  if (value is double && value == 0.0) {
+    // Normalize -0.0 to 0.0 so they have the same hash code.
+    return 0.0.hashCode;
+  }
+  return value.hashCode;
+}
+
+/// 识别类型。
+///
+/// **即使首版只做条码，这个参数也必须先留出来**（07 §「待确认：VIN 码与车牌
+/// 识别的技术路径」）：车牌走的是专用 OCR、VIN 印刷字符走通用 OCR + 校验位
+/// 过滤，技术路径还没定。参数先在 schema 里占好位，后面加识别类型就不用改
+/// 接口签名——改签名意味着三端生成物和所有调用点一起动。
+enum ScanMode {
+  /// 二维码 / 条形码（商品、库位）。
+  barcode,
+
+  /// VIN 码。可能是 Code 39 条码，也可能只有印刷字符。
+  vin,
+
+  /// 车牌。
+  plate,
+}
+
+/// 扫码入参。
+class ScanOptions {
+  ScanOptions({required this.mode, this.timeoutMs, this.torchEnabled, this.title});
+
+  /// 识别类型。
+  ScanMode mode;
+
+  /// 超时毫秒数。null 表示不超时，由用户手动取消。
+  int? timeoutMs;
+
+  /// 是否默认打开闪光灯。
+  bool? torchEnabled;
+
+  /// 扫码页标题。由调用方传，`native_scan` 不依赖任何 i18n 资源。
+  String? title;
+
+  List<Object?> _toList() {
+    return <Object?>[mode, timeoutMs, torchEnabled, title];
+  }
+
+  Object encode() {
+    return _toList();
+  }
+
+  static ScanOptions decode(Object result) {
+    result as List<Object?>;
+    return ScanOptions(
+      mode: result[0]! as ScanMode,
+      timeoutMs: result[1] as int?,
+      torchEnabled: result[2] as bool?,
+      title: result[3] as String?,
+    );
+  }
+
+  @override
+  // ignore: avoid_equals_and_hash_code_on_mutable_classes
+  bool operator ==(Object other) {
+    if (other is! ScanOptions || other.runtimeType != runtimeType) {
+      return false;
+    }
+    if (identical(this, other)) {
+      return true;
+    }
+    return _deepEquals(mode, other.mode) &&
+        _deepEquals(timeoutMs, other.timeoutMs) &&
+        _deepEquals(torchEnabled, other.torchEnabled) &&
+        _deepEquals(title, other.title);
+  }
+
+  @override
+  // ignore: avoid_equals_and_hash_code_on_mutable_classes
+  int get hashCode => _deepHash(<Object?>[runtimeType, ..._toList()]);
+
+  @override
+  String toString() {
+    return 'ScanOptions(mode: $mode, timeoutMs: $timeoutMs, torchEnabled: $torchEnabled, title: $title)';
+  }
+}
+
+/// 扫码结果。
+class ScanResult {
+  ScanResult({required this.mode, required this.value, required this.durationMs, this.rawFormat});
+
+  /// 实际生效的识别类型。
+  ScanMode mode;
+
+  /// 识别到的文本。
+  String value;
+
+  /// 从打开扫码页到出结果的耗时，供埋点用（见 13 的 `scan_succeeded`）。
+  int durationMs;
+
+  /// 原始码制（如 `CODE_39` / `QR_CODE`）。OCR 路径下为 null。
+  String? rawFormat;
+
+  List<Object?> _toList() {
+    return <Object?>[mode, value, durationMs, rawFormat];
+  }
+
+  Object encode() {
+    return _toList();
+  }
+
+  static ScanResult decode(Object result) {
+    result as List<Object?>;
+    return ScanResult(
+      mode: result[0]! as ScanMode,
+      value: result[1]! as String,
+      durationMs: result[2]! as int,
+      rawFormat: result[3] as String?,
+    );
+  }
+
+  @override
+  // ignore: avoid_equals_and_hash_code_on_mutable_classes
+  bool operator ==(Object other) {
+    if (other is! ScanResult || other.runtimeType != runtimeType) {
+      return false;
+    }
+    if (identical(this, other)) {
+      return true;
+    }
+    return _deepEquals(mode, other.mode) &&
+        _deepEquals(value, other.value) &&
+        _deepEquals(durationMs, other.durationMs) &&
+        _deepEquals(rawFormat, other.rawFormat);
+  }
+
+  @override
+  // ignore: avoid_equals_and_hash_code_on_mutable_classes
+  int get hashCode => _deepHash(<Object?>[runtimeType, ..._toList()]);
+
+  @override
+  String toString() {
+    return 'ScanResult(mode: $mode, value: $value, durationMs: $durationMs, rawFormat: $rawFormat)';
+  }
+}
+
+class _PigeonCodec extends StandardMessageCodec {
+  const _PigeonCodec();
+  @override
+  void writeValue(WriteBuffer buffer, Object? value) {
+    if (value is int) {
+      buffer.putUint8(4);
+      buffer.putInt64(value);
+    } else if (value is ScanMode) {
+      buffer.putUint8(129);
+      writeValue(buffer, value.index);
+    } else if (value is ScanOptions) {
+      buffer.putUint8(130);
+      writeValue(buffer, value.encode());
+    } else if (value is ScanResult) {
+      buffer.putUint8(131);
+      writeValue(buffer, value.encode());
+    } else {
+      super.writeValue(buffer, value);
+    }
+  }
+
+  @override
+  Object? readValueOfType(int type, ReadBuffer buffer) {
+    switch (type) {
+      case 129:
+        final value = readValue(buffer) as int?;
+        return value == null ? null : ScanMode.values[value];
+      case 130:
+        return ScanOptions.decode(readValue(buffer)!);
+      case 131:
+        return ScanResult.decode(readValue(buffer)!);
+      default:
+        return super.readValueOfType(type, buffer);
+    }
+  }
+}
+
+/// Dart → 原生。
+///
+/// 用户取消、权限拒绝、平台未实现这三类都通过 `FlutterError` 抛出，
+/// 由 Dart 侧的公共 API 转成 `NativeScanException`——**原生异常类型
+/// （`PlatformException`）不允许直接抛到业务代码里**（07 §使用规则）。
+class ScanHostApi {
+  /// Constructor for [ScanHostApi]. The [binaryMessenger] named argument is
+  /// available for dependency injection. If it is left null, the default
+  /// BinaryMessenger will be used which routes to the host platform.
+  ScanHostApi({BinaryMessenger? binaryMessenger, String messageChannelSuffix = ''})
+    : pigeonVar_binaryMessenger = binaryMessenger,
+      pigeonVar_messageChannelSuffix = messageChannelSuffix.isNotEmpty
+          ? '.$messageChannelSuffix'
+          : '';
+  final BinaryMessenger? pigeonVar_binaryMessenger;
+
+  static const MessageCodec<Object?> pigeonChannelCodec = _PigeonCodec();
+
+  final String pigeonVar_messageChannelSuffix;
+
+  /// 打开扫码页并等待一次结果。
+  ///
+  /// 用户取消时抛 code 为 `CANCELLED` 的错误，而不是返回 null——
+  /// 「取消」和「扫到了空字符串」必须能区分开。
+  Future<ScanResult> startScan(ScanOptions options) async {
+    final pigeonVar_channelName =
+        'dev.flutter.pigeon.native_scan.ScanHostApi.startScan$pigeonVar_messageChannelSuffix';
+    final pigeonVar_channel = BasicMessageChannel<Object?>(
+      pigeonVar_channelName,
+      pigeonChannelCodec,
+      binaryMessenger: pigeonVar_binaryMessenger,
+    );
+    final Future<Object?> pigeonVar_sendFuture = pigeonVar_channel.send(<Object?>[options]);
+    final pigeonVar_replyList = await pigeonVar_sendFuture as List<Object?>?;
+
+    final Object? pigeonVar_replyValue = _extractReplyValueOrThrow(
+      pigeonVar_replyList,
+      pigeonVar_channelName,
+      isNullValid: false,
+    );
+    return pigeonVar_replyValue! as ScanResult;
+  }
+
+  /// 当前平台是否支持指定识别类型。
+  ///
+  /// 车牌识别的技术路径未定（见上），首版可能只有部分平台支持；
+  /// 调用方应当先查这个再决定要不要显示入口，而不是等 `startScan` 抛错。
+  Future<bool> isModeSupported(ScanMode mode) async {
+    final pigeonVar_channelName =
+        'dev.flutter.pigeon.native_scan.ScanHostApi.isModeSupported$pigeonVar_messageChannelSuffix';
+    final pigeonVar_channel = BasicMessageChannel<Object?>(
+      pigeonVar_channelName,
+      pigeonChannelCodec,
+      binaryMessenger: pigeonVar_binaryMessenger,
+    );
+    final Future<Object?> pigeonVar_sendFuture = pigeonVar_channel.send(<Object?>[mode]);
+    final pigeonVar_replyList = await pigeonVar_sendFuture as List<Object?>?;
+
+    final Object? pigeonVar_replyValue = _extractReplyValueOrThrow(
+      pigeonVar_replyList,
+      pigeonVar_channelName,
+      isNullValid: false,
+    );
+    return pigeonVar_replyValue! as bool;
+  }
+}

packages/native_scan/pigeons/scan_api.dart

@@ -0,0 +1,93 @@
+// 唯一手写的接口契约文件。来源：07 §「Pigeon 的工程化」。
+//
+// 这不是可执行代码，只是给 pigeon 生成器读的 schema。改需求就改这里重新生成，
+// **生成产物不手动修改**：
+//   dart run pigeon --input pigeons/scan_api.dart
+//   （或 melos run gen:pigeon）
+
+@ConfigurePigeon(
+  PigeonOptions(
+    dartOut: 'lib/src/generated/scan_api.g.dart',
+    dartOptions: DartOptions(),
+    kotlinOut: 'android/src/main/kotlin/com/conti/native_scan/ScanApi.g.kt',
+    kotlinOptions: KotlinOptions(package: 'com.conti.native_scan'),
+    swiftOut: 'ios/native_scan/Sources/native_scan/ScanApi.g.swift',
+    swiftOptions: SwiftOptions(),
+    dartPackageName: 'native_scan',
+  ),
+)
+library;
+
+import 'package:pigeon/pigeon.dart';
+
+/// 识别类型。
+///
+/// **即使首版只做条码，这个参数也必须先留出来**（07 §「待确认：VIN 码与车牌
+/// 识别的技术路径」）：车牌走的是专用 OCR、VIN 印刷字符走通用 OCR + 校验位
+/// 过滤，技术路径还没定。参数先在 schema 里占好位，后面加识别类型就不用改
+/// 接口签名——改签名意味着三端生成物和所有调用点一起动。
+enum ScanMode {
+  /// 二维码 / 条形码（商品、库位）。
+  barcode,
+
+  /// VIN 码。可能是 Code 39 条码，也可能只有印刷字符。
+  vin,
+
+  /// 车牌。
+  plate,
+}
+
+/// 扫码入参。
+class ScanOptions {
+  ScanOptions({required this.mode, this.timeoutMs, this.torchEnabled, this.title});
+
+  /// 识别类型。
+  ScanMode mode;
+
+  /// 超时毫秒数。null 表示不超时，由用户手动取消。
+  int? timeoutMs;
+
+  /// 是否默认打开闪光灯。
+  bool? torchEnabled;
+
+  /// 扫码页标题。由调用方传，`native_scan` 不依赖任何 i18n 资源。
+  String? title;
+}
+
+/// 扫码结果。
+class ScanResult {
+  ScanResult({required this.mode, required this.value, required this.durationMs, this.rawFormat});
+
+  /// 实际生效的识别类型。
+  ScanMode mode;
+
+  /// 识别到的文本。
+  String value;
+
+  /// 从打开扫码页到出结果的耗时，供埋点用（见 13 的 `scan_succeeded`）。
+  int durationMs;
+
+  /// 原始码制（如 `CODE_39` / `QR_CODE`）。OCR 路径下为 null。
+  String? rawFormat;
+}
+
+/// Dart → 原生。
+///
+/// 用户取消、权限拒绝、平台未实现这三类都通过 `FlutterError` 抛出，
+/// 由 Dart 侧的公共 API 转成 `NativeScanException`——**原生异常类型
+/// （`PlatformException`）不允许直接抛到业务代码里**（07 §使用规则）。
+@HostApi()
+abstract class ScanHostApi {
+  /// 打开扫码页并等待一次结果。
+  ///
+  /// 用户取消时抛 code 为 `CANCELLED` 的错误，而不是返回 null——
+  /// 「取消」和「扫到了空字符串」必须能区分开。
+  @async
+  ScanResult startScan(ScanOptions options);
+
+  /// 当前平台是否支持指定识别类型。
+  ///
+  /// 车牌识别的技术路径未定（见上），首版可能只有部分平台支持；
+  /// 调用方应当先查这个再决定要不要显示入口，而不是等 `startScan` 抛错。
+  bool isModeSupported(ScanMode mode);
+}

packages/native_scan/pubspec.yaml

@@ -0,0 +1,32 @@
+name: native_scan
+description: 扫码能力（条码 / VIN / 车牌）。Pigeon 定义跨语言接口。
+publish_to: none
+version: 0.1.0
+resolution: workspace
+
+# ---------------------------------------------------------------------------
+# native_* 的硬约束（01）：只依赖 Flutter SDK 和 Pigeon 产物，
+# **不依赖仓库内任何包**——包括 core_foundation。
+# 因此本包抛的是包内自定义的 NativeScanException，由调用方转成 NativeException。
+# ---------------------------------------------------------------------------
+environment:
+  sdk: ^3.12.0
+
+dependencies:
+  flutter:
+    sdk: flutter
+
+dev_dependencies:
+  flutter_lints: ^6.0.0
+  flutter_test:
+    sdk: flutter
+  pigeon: ^27.3.0
+
+flutter:
+  plugin:
+    platforms:
+      android:
+        package: com.conti.native_scan
+        pluginClass: NativeScanPlugin
+      ios:
+        pluginClass: NativeScanPlugin

packages/native_scan/test/native_scan_test.dart

@@ -0,0 +1,60 @@
+// 唯一值得单测的东西：原生异常有没有被挡在包边界内（07 §使用规则）。
+
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:native_scan/native_scan.dart';
+import 'package:native_scan/src/generated/scan_api.g.dart';
+
+// pigeon 给 @HostApi 生成的是具体类（内部持有 BinaryMessenger），
+// 所以这里只能 extends 覆写方法，不能 implements。
+class _ThrowingApi extends ScanHostApi {
+  _ThrowingApi(this.error);
+
+  final Object error;
+
+  @override
+  Future<ScanResult> startScan(ScanOptions options) => Future<ScanResult>.error(error);
+
+  @override
+  Future<bool> isModeSupported(ScanMode mode) => Future<bool>.error(error);
+}
+
+void main() {
+  final ScanOptions options = ScanOptions(mode: ScanMode.barcode);
+
+  test('PlatformException 被转成 NativeScanException，原生类型不外泄', () async {
+    final NativeScan scan = NativeScan(
+      api: _ThrowingApi(PlatformException(code: 'CANCELLED', message: '用户取消')),
+    );
+
+    await expectLater(
+      scan.startScan(options),
+      throwsA(
+        isA<NativeScanException>()
+            .having((NativeScanException e) => e.code, 'code', NativeScanErrorCode.cancelled)
+            .having((NativeScanException e) => e.isCancelled, 'isCancelled', isTrue),
+      ),
+    );
+  });
+
+  test('原生未实现时抛 UNSUPPORTED_PLATFORM，而不是静默返回', () async {
+    final NativeScan scan = NativeScan(api: _ThrowingApi(MissingPluginException()));
+
+    await expectLater(
+      scan.startScan(options),
+      throwsA(
+        isA<NativeScanException>().having(
+          (NativeScanException e) => e.code,
+          'code',
+          NativeScanErrorCode.unsupportedPlatform,
+        ),
+      ),
+    );
+  });
+
+  test('isModeSupported 出错时降级为 false，调用方据此隐藏入口', () async {
+    final NativeScan scan = NativeScan(api: _ThrowingApi(MissingPluginException()));
+
+    expect(await scan.isModeSupported(ScanMode.plate), isFalse);
+  });
+}