Files
photo-live/apps/mobile/ios/Runner/AppDelegate.swift
T
浅念 42e1c2e34b feat(mobile): ios background upload bridge (compile-gated at G3)
Swift 侧(协议与 Android UploadPlugin.kt 逐字一致,编译/真机留 G3):
- UploadBridge.swift:通道/方法/事件/失败码常量 + registerTask 参数解析
  (镜像 UploadProtocol.kt)
- UploadEventBus.swift:单调 seq + 终态 ack 缓存重放(镜像
  UploadEventBus.kt),iOS 增强——未 ack 终态落盘(系统后台拉起投递的
  回调在进程重启后同样重放,技术方案 §6.2 持久化原生回调)
- UploadTaskStore.swift:taskId→URLSession taskIdentifier 映射 plist 持久化
  (Application Support;对应 Android WorkManager 自持映射)
- UploadPlugin.swift:URLSession background
  (com.photolive.photo_live.uploads)+ delegate 失败分类(2xx→completed+etag
  / 403→needsRenew / 4xx→HTTP_4XX / 网络→重试上限后 NETWORK,镜像
  UploadPutExecutor/UploadWorker)、原生重试(5 次上限、10s 指数退避)、
  进度 500ms 节流、queryTask/cancelTask/ackEvents、静默取消
- AppDelegate.swift:implicit engine 通道注册 + 启动重建会话 +
  handleEventsForBackgroundURLSession completionHandler 暂存
- Info.plist:UIBackgroundModes 有意不声明(background URLSession 无需;
  计划措辞按技术方案 §6.2 修正,见 README-ios.md)
- project.pbxproj 登记新 Swift 文件;README-ios.md(Xcode 步骤 + G3 验证
  清单:实际文件上传/持久化回调窗口/服务端补偿/重启重联校准/强制退出/
  低电量延迟/100 张批量)

Dart:NativeTransport 选择矩阵并入 iOS(Platform.isAndroid || isIOS,
FORCE_DART_TRANSPORT 覆盖不变)——协议两侧一致,无新通道代码。

flutter analyze 0 issue;flutter test 219 全绿。

Co-Authored-By: Claude Code <noreply@anthropic.com>
2026-09-19 03:42:49 +08:00

39 lines
1.7 KiB
Swift
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import Flutter
import UIKit
@main
@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
override func application(
_ application: UIApplication,
didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
) -> Bool {
// 后台会话启动即重建:App 被系统在后台拉起(Dart 引擎未起)时,
// delegate 回调即可入总线缓存(终态落盘,引擎 onListen 后重放)。
UploadPlugin.shared.ensureSession()
return super.application(application, didFinishLaunchingWithOptions: launchOptions)
}
func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
// 上传桥接(P3 Task 8):MethodChannel 命令 + EventChannel 事件流
// (通道/协议与 Android UploadPlugin 一致,Dart 侧同一 NativeTransport)。
UploadPlugin.register(with: engineBridge.applicationRegistrar.messenger())
}
/// 系统完成后台会话事件投递前的拉起回调:暂存 completionHandler,
/// 供 urlSessionDidFinishEvents 消费(否则 App 被系统挂起惩罚)。
override func application(
_ application: UIApplication,
handleEventsForBackgroundURLSession identifier: String,
completionHandler: @escaping () -> Void
) {
super.application(
application, handleEventsForBackgroundURLSession: identifier,
completionHandler: completionHandler)
if identifier == UploadBridge.sessionIdentifier {
UploadPlugin.shared.ensureSession()
UploadPlugin.shared.storeBackgroundCompletionHandler(completionHandler)
}
}
}