re init

lib/ui/tools/downloader/downloader_dialog_ui.dart

@@ -0,0 +1,60 @@
+import 'package:file_sizes/file_sizes.dart';
+import 'package:starcitizen_doctor/base/ui.dart';
+
+import 'downloader_dialog_ui_model.dart';
+
+class DownloaderDialogUI extends BaseUI<DownloaderDialogUIModel> {
+  @override
+  Widget? buildBody(BuildContext context, DownloaderDialogUIModel model) {
+    return ContentDialog(
+      constraints:
+          BoxConstraints(maxWidth: MediaQuery.of(context).size.width * .54),
+      title: const Text("文件下载..."),
+      content: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          Text("文件名：${model.fileName}"),
+          const SizedBox(height: 6),
+          Text("保存位置：${model.savePath}"),
+          const SizedBox(height: 6),
+          Text("线程数：${model.threadCount}"),
+          const SizedBox(height: 6),
+          Text(
+              "文件大小： ${FileSize.getSize(model.count ?? 0)} / ${FileSize.getSize(model.total ?? 0)}"),
+          const SizedBox(height: 6),
+          Text("下载速度： ${FileSize.getSize(model.speed?.toInt() ?? 0)}/s"),
+          const SizedBox(height: 12),
+          Row(
+            children: [
+              Text(getStatus(model)),
+              const SizedBox(width: 24),
+              Expanded(
+                  child: ProgressBar(
+                value: model.progress == 100 ? null : model.progress,
+              )),
+              const SizedBox(width: 24),
+            ],
+          ),
+        ],
+      ),
+      actions: [
+        FilledButton(
+            child: const Padding(
+              padding: EdgeInsets.only(left: 8, right: 8, top: 2, bottom: 2),
+              child: Text("取消下载"),
+            ),
+            onPressed: () => model.doCancel()),
+      ],
+    );
+  }
+
+  @override
+  String getUITitle(BuildContext context, DownloaderDialogUIModel model) => "";
+
+  String getStatus(DownloaderDialogUIModel model) {
+    if (model.progress == null && !model.isInMerging) return "准备中...";
+    if (model.isInMerging) return "正在合并文件...";
+    return "${model.progress?.toStringAsFixed(2) ?? "0"}%  ";
+  }
+}

lib/ui/tools/downloader/downloader_dialog_ui_model.dart

@@ -0,0 +1,100 @@
+import 'dart:io';
+
+import 'package:file_picker/file_picker.dart';
+import 'package:hyper_thread_downloader/hyper_thread_downloader.dart';
+import 'package:starcitizen_doctor/base/ui_model.dart';
+
+class DownloaderDialogUIModel extends BaseUIModel {
+  final String fileName;
+  String savePath;
+  final String downloadUrl;
+  final bool showChangeSavePathDialog;
+  final int threadCount;
+
+  DownloaderDialogUIModel(this.fileName, this.savePath, this.downloadUrl,
+      {this.showChangeSavePathDialog = false, this.threadCount = 1});
+
+  final downloader = HyperDownload();
+
+  int? downloadTaskId;
+
+  bool isInMerging = false;
+
+  double? progress;
+  double? speed;
+  double? remainTime;
+  int? count;
+  int? total;
+
+  @override
+  void initModel() {
+    super.initModel();
+    _initDownload();
+  }
+
+  _initDownload() async {
+    if (showChangeSavePathDialog) {
+      final userSelect = await FilePicker.platform.saveFile(
+          initialDirectory: savePath,
+          fileName: fileName,
+          lockParentWindow: true);
+      if (userSelect == null) {
+        Navigator.pop(context!);
+        return;
+      }
+      final f = File(userSelect);
+      if (await f.exists()) {
+        await f.delete();
+      }
+      savePath = userSelect;
+      dPrint(savePath);
+      notifyListeners();
+    } else {
+      savePath = "$savePath/$fileName";
+    }
+    // start download
+    downloader.startDownload(
+        url: downloadUrl,
+        savePath: savePath,
+        threadCount: threadCount,
+        prepareWorking: (bool done) {},
+        workingMerge: (bool done) {
+          isInMerging = true;
+          progress = null;
+          notifyListeners();
+        },
+        downloadProgress: ({
+          required double progress,
+          required double speed,
+          required double remainTime,
+          required int count,
+          required int total,
+        }) {
+          this.progress = ((progress) * 100);
+          this.speed = speed;
+          this.remainTime = remainTime;
+          this.count = count;
+          this.total = total;
+          notifyListeners();
+        },
+        downloadComplete: () {
+          notifyListeners();
+          Navigator.pop(context!, savePath);
+        },
+        downloadFailed: (String reason) {
+          notifyListeners();
+          showToast(context!, "下载失败！ $reason");
+        },
+        downloadTaskId: (int id) {
+          downloadTaskId = id;
+        },
+        downloadingLog: (String log) {});
+  }
+
+  doCancel() {
+    if (downloadTaskId != null) {
+      downloader.stopDownload(id: downloadTaskId!);
+    }
+    Navigator.pop(context!, "cancel");
+  }
+}