app-zj/lib/widget/upgrade_dialog.dart

import 'package:flutter/material.dart';
import 'package:lszlgl/main.dart';
import 'package:lszlgl/service/upgrade_service.dart';
import 'package:lszlgl/widget/button.dart';
import 'package:lszlgl/ext/value_notifier_ext.dart';

import '../router/my_navigator.dart';

class UpgradeDialog extends StatelessWidget {
  static void showDialog(String path,String contents) {
    MyNavigator.showDialog(
      builder: (_) => UpgradeDialog(path,contents),
      tag: 'upgrade',
      clickDismiss: false,
    );
  }

  final String path;
  final String contents;
  final String versionName;

  UpgradeDialog(
    this.path,this.contents, {
    super.key,
  }) : versionName = path.split('_')[path.split('_').length - 2];

  final progress = (-1.0).notifier<double>();

  void dismiss() {
    MyNavigator.dismiss(tag: 'upgrade');
  }

  void onDownload() async {
    UpgradeService.getName(path);
    // 拆分文件名
    var apkName = UpgradeService.getName(path);
    logger.d('path:$path');
    logger.d('apkName:$apkName');

    var file = await UpgradeService.getApkFile(apkName);
    // 已有文件 直接安装
    if (await file.exists()) {
      installApk(file.path);
      return;
    }
    // 无文件 去下载
    try {
      await UpgradeService.download(
        path,
        apkName,
        (count, total) => progress.value = count / total,
      );
      installApk(file.path);
    } catch (e) {
      logger.e(e);
      MyNavigator.showToast('下载失败,请重试');
      progress.value = -1;
    }
  }

  /// 安装apk
  void installApk(String path) async {
    bool success = await UpgradeService.installApk(path);
    if (success) {
      // dismiss();
    } else {
      progress.value = -1;
    }
  }

  @override
  Widget build(BuildContext context) {
    return Container(
      margin: const EdgeInsets.symmetric(horizontal: 24),
      padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 24),
      decoration: const BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.all(Radius.circular(8)),
      ),
      child: Column(
       // crossAxisAlignment: CrossAxisAlignment.stretch,
        mainAxisSize: MainAxisSize.min,
        children: [
          Container(
            alignment: Alignment.topCenter,
            child: Text(
              '发现新版本 $versionName',
              style: const TextStyle(color: Color(0xFF333333), fontSize: 16, fontWeight: FontWeight.bold),
            ),
          ),
          const SizedBox(height: 12),
          const SizedBox(
            width: double.infinity,
            child: Text(
             '更新内容：',
             style:  TextStyle(fontSize: 14,color: Color(0xFF333333),fontWeight: FontWeight.bold),
            ),
          ),
          const SizedBox(height: 4),
          SizedBox(
            width: double.infinity,
            child: Text(
              contents,
              style: const TextStyle(fontSize: 14,color: Color(0xFF333333)),
            ),
          ),

          const SizedBox(height: 24),
          progress.builder((v) => v == -1 ? MyButton('立即下载安装', onTap: onDownload, alignment: null) : buildProgress(v)),
        ],
      ),
    );
  }

  Widget buildProgress(double value) {
    int pre = (double.parse(value.toStringAsFixed(2)) * 100).toInt();
    return Row(
      children: [
        Expanded(flex: 6, child: LinearProgressIndicator(value: value, borderRadius: BorderRadius.circular(8), minHeight: 8)),
        Expanded(
          child: Text(
            '$pre%',
            textAlign: TextAlign.right,
            style: const TextStyle(color: Color(0xFF333333), fontSize: 14),
          ),
        )
      ],
    );
  }
}