feat(mobile-next): 导入官方 openim-flutter-demo 固定基线 3.8.3-patch.3 并完成双构建
- 上游: github.com/OpenIMSDK/openim-flutter-demo tag 3.8.3-patch.3 commit b3dfdb1e8aaeaaf6f0793e10cadd20d5c184a31f - 并行目录 mobile-next/ 原样导入（含 LICENSE），不覆盖现网 mobile/ - 锁定 Flutter 3.24.5 / Dart 3.5.4 / JDK 17 / Gradle 7.6.3 / AGP 7.3.1 - 实测 Android debug 与 release 构建均成功（见 docs/mobile-next-baseline-import.md） - 本提交可单独回退：git revert 1db1229（重写前） Co-authored-by: multica-agent <github@multica.ai>
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编码工程师
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library flutter_download_manager;
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export 'src/downloader.dart';
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export 'src/download_request.dart';
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export 'src/download_status.dart';
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export 'src/download_task.dart';
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import 'package:dio/dio.dart';
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class DownloadRequest {
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final String url;
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final String path;
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var cancelToken = CancelToken();
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var forceDownload = false;
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DownloadRequest(
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this.url,
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this.path,
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);
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@override
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bool operator ==(Object other) =>
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identical(this, other) ||
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other is DownloadRequest &&
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runtimeType == other.runtimeType &&
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url == other.url &&
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path == other.path;
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@override
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int get hashCode => url.hashCode ^ path.hashCode;
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}
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@@ -0,0 +1,21 @@
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enum DownloadStatus { queued, downloading, completed, failed, paused, canceled }
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extension DownloadStatusExtension on DownloadStatus {
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bool get isCompleted {
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switch (this) {
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case DownloadStatus.queued:
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return false;
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case DownloadStatus.downloading:
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return false;
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case DownloadStatus.paused:
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return false;
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case DownloadStatus.completed:
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return true;
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case DownloadStatus.failed:
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return true;
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case DownloadStatus.canceled:
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return true;
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}
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}
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}
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@@ -0,0 +1,35 @@
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import 'dart:async';
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import 'package:flutter/foundation.dart';
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import 'package:flutter_download_manager/flutter_download_manager.dart';
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class DownloadTask {
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final DownloadRequest request;
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ValueNotifier<DownloadStatus> status = ValueNotifier(DownloadStatus.queued);
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ValueNotifier<double> progress = ValueNotifier(0);
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DownloadTask(
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this.request,
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);
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Future<DownloadStatus> whenDownloadComplete(
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{Duration timeout = const Duration(hours: 2)}) async {
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var completer = Completer<DownloadStatus>();
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if (status.value.isCompleted) {
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completer.complete(status.value);
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}
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var listener;
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listener = () {
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if (status.value.isCompleted) {
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completer.complete(status.value);
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status.removeListener(listener);
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}
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};
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status.addListener(listener);
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return completer.future.timeout(timeout);
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}
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}
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@@ -0,0 +1,361 @@
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import 'dart:async';
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import 'dart:collection';
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import 'dart:io';
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import 'package:collection/collection.dart';
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import 'package:dio/dio.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter_download_manager/flutter_download_manager.dart';
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class DownloadManager {
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final Map<String, DownloadTask> _cache = <String, DownloadTask>{};
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final Queue<DownloadRequest> _queue = Queue();
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var dio = Dio();
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static const partialExtension = ".partial";
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static const tempExtension = ".temp";
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static final DownloadManager _dm = new DownloadManager._internal();
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DownloadManager._internal();
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factory DownloadManager() {
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return _dm;
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}
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void Function(int, int) createCallback(url, int partialFileLength) => (int received, int total) {
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getDownload(url)?.progress.value = (received + partialFileLength) / (total + partialFileLength);
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if (total == -1) {}
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};
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Future<void> download(String url, String savePath, cancelToken, {forceDownload = false}) async {
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late String partialFilePath;
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late File partialFile;
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try {
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var task = getDownload(url);
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if (task == null || task.status.value == DownloadStatus.canceled) {
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return;
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}
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setStatus(task, DownloadStatus.downloading);
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if (kDebugMode) {
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print(url);
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}
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var file = File(savePath.toString());
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partialFilePath = savePath + partialExtension;
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partialFile = File(partialFilePath);
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var fileExist = await file.exists();
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var partialFileExist = await partialFile.exists();
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if (fileExist) {
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if (kDebugMode) {
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print("File Exists");
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}
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setStatus(task, DownloadStatus.completed);
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} else if (partialFileExist) {
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if (kDebugMode) {
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print("Partial File Exists");
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}
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var partialFileLength = await partialFile.length();
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var response = await dio.download(url, partialFilePath + tempExtension,
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onReceiveProgress: createCallback(url, partialFileLength),
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options: Options(
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headers: {HttpHeaders.rangeHeader: 'bytes=$partialFileLength-'},
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),
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cancelToken: cancelToken,
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deleteOnError: false);
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if (response.statusCode == HttpStatus.partialContent) {
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var ioSink = partialFile.openWrite(mode: FileMode.writeOnlyAppend);
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var _f = File(partialFilePath + tempExtension);
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await ioSink.addStream(_f.openRead());
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await _f.delete();
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await ioSink.close();
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await partialFile.rename(savePath);
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setStatus(task, DownloadStatus.completed);
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}
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} else {
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var response = await dio.download(url, partialFilePath,
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onReceiveProgress: createCallback(url, 0), cancelToken: cancelToken, deleteOnError: false);
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if (response.statusCode == HttpStatus.ok) {
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await partialFile.rename(savePath);
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setStatus(task, DownloadStatus.completed);
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}
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}
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} catch (e) {
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var task = getDownload(url)!;
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if (task.status.value != DownloadStatus.canceled && task.status.value != DownloadStatus.paused) {
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setStatus(task, DownloadStatus.failed);
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if (_queue.isNotEmpty) {
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_startExecution();
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}
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rethrow;
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} else if (task.status.value == DownloadStatus.paused) {
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final ioSink = partialFile.openWrite(mode: FileMode.writeOnlyAppend);
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final f = File(partialFilePath + tempExtension);
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if (await f.exists()) {
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await ioSink.addStream(f.openRead());
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}
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await ioSink.close();
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}
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}
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if (_queue.isNotEmpty) {
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_startExecution();
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}
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}
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void disposeNotifiers(DownloadTask task) {}
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void setStatus(DownloadTask? task, DownloadStatus status) {
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if (task != null) {
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task.status.value = status;
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if (status.isCompleted) {
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disposeNotifiers(task);
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}
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}
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}
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Future<DownloadTask?> addDownload(String url, String savedDir) async {
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if (url.isNotEmpty) {
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if (savedDir.isEmpty) {
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savedDir = ".";
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}
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var isDirectory = await Directory(savedDir).exists();
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var downloadFilename = isDirectory ? savedDir + Platform.pathSeparator + getFileNameFromUrl(url) : savedDir;
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return _addDownloadRequest(DownloadRequest(url, downloadFilename));
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}
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return null;
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}
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Future<DownloadTask> _addDownloadRequest(
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DownloadRequest downloadRequest,
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) async {
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if (_cache[downloadRequest.url] != null) {
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if (!_cache[downloadRequest.url]!.status.value.isCompleted &&
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_cache[downloadRequest.url]!.request == downloadRequest) {
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return _cache[downloadRequest.url]!;
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} else {
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_queue.remove(_cache[downloadRequest.url]);
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}
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}
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_queue.add(DownloadRequest(downloadRequest.url, downloadRequest.path));
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var task = DownloadTask(_queue.last);
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_cache[downloadRequest.url] = task;
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_startExecution();
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return task;
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}
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Future<void> pauseDownload(String url) async {
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if (kDebugMode) {
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print("Pause Download");
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}
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var task = getDownload(url)!;
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setStatus(task, DownloadStatus.paused);
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task.request.cancelToken.cancel();
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_queue.remove(task.request);
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}
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Future<void> cancelDownload(String url) async {
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if (kDebugMode) {
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print("Cancel Download");
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}
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var task = getDownload(url)!;
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setStatus(task, DownloadStatus.canceled);
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_queue.remove(task.request);
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task.request.cancelToken.cancel();
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}
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Future<void> resumeDownload(String url) async {
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if (kDebugMode) {
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print("Resume Download");
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}
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var task = getDownload(url)!;
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setStatus(task, DownloadStatus.downloading);
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task.request.cancelToken = CancelToken();
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_queue.add(task.request);
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_startExecution();
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}
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Future<void> removeDownload(String url) async {
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cancelDownload(url);
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_cache.remove(url);
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}
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DownloadTask? getDownload(String url) {
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return _cache[url];
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}
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Future<DownloadStatus> whenDownloadComplete(String url, {Duration timeout = const Duration(hours: 2)}) async {
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DownloadTask? task = getDownload(url);
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if (task != null) {
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return task.whenDownloadComplete(timeout: timeout);
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} else {
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return Future.error("Not found");
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}
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}
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List<DownloadTask> getAllDownloads() {
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return _cache.values.toList();
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}
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Future<void> addBatchDownloads(List<String> urls, String savedDir) async {
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urls.forEach((url) {
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addDownload(url, savedDir);
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});
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}
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List<DownloadTask?> getBatchDownloads(List<String> urls) {
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return urls.map((e) => _cache[e]).toList();
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}
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Future<void> pauseBatchDownloads(List<String> urls) async {
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urls.forEach((element) {
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pauseDownload(element);
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});
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}
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Future<void> cancelBatchDownloads(List<String> urls) async {
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urls.forEach((element) {
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cancelDownload(element);
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});
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}
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Future<void> resumeBatchDownloads(List<String> urls) async {
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urls.forEach((element) {
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resumeDownload(element);
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});
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}
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ValueNotifier<double> getBatchDownloadProgress(List<String> urls) {
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ValueNotifier<double> progress = ValueNotifier(0);
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var total = urls.length;
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if (total == 0) {
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return progress;
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}
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if (total == 1) {
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return getDownload(urls.first)?.progress ?? progress;
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}
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var progressMap = Map<String, double>();
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urls.forEach((url) {
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DownloadTask? task = getDownload(url);
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if (task != null) {
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progressMap[url] = 0.0;
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if (task.status.value.isCompleted) {
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progressMap[url] = 1.0;
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progress.value = progressMap.values.sum / total;
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}
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var progressListener;
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progressListener = () {
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progressMap[url] = task.progress.value;
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progress.value = progressMap.values.sum / total;
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};
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task.progress.addListener(progressListener);
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var listener;
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listener = () {
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if (task.status.value.isCompleted) {
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progressMap[url] = 1.0;
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progress.value = progressMap.values.sum / total;
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task.status.removeListener(listener);
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task.progress.removeListener(progressListener);
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}
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};
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task.status.addListener(listener);
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} else {
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total--;
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}
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});
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return progress;
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}
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Future<List<DownloadTask?>?> whenBatchDownloadsComplete(List<String> urls,
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{Duration timeout = const Duration(hours: 2)}) async {
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var completer = Completer<List<DownloadTask?>?>();
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var completed = 0;
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var total = urls.length;
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urls.forEach((url) {
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DownloadTask? task = getDownload(url);
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if (task != null) {
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if (task.status.value.isCompleted) {
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completed++;
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if (completed == total) {
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completer.complete(getBatchDownloads(urls));
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}
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}
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var listener;
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listener = () {
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if (task.status.value.isCompleted) {
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completed++;
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if (completed == total) {
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completer.complete(getBatchDownloads(urls));
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task.status.removeListener(listener);
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}
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}
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};
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task.status.addListener(listener);
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} else {
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total--;
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if (total == 0) {
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completer.complete(null);
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}
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}
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});
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return completer.future.timeout(timeout);
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}
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void _startExecution() async {
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if (_queue.isEmpty) {
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return;
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}
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while (_queue.isNotEmpty) {
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var currentRequest = _queue.removeFirst();
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download(currentRequest.url, currentRequest.path, currentRequest.cancelToken);
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await Future.delayed(Duration(milliseconds: 500), null);
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}
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}
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String getFileNameFromUrl(String url) {
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return url.split('/').last;
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}
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}
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Block a user