76 lines
2.5 KiB
Dart
76 lines
2.5 KiB
Dart
// Author: fengshengxiong
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// Date: 2024/5/10
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// Description: 下载文件
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import 'dart:io';
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import 'package:dio/dio.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_screenutil/flutter_screenutil.dart';
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import 'package:get/get.dart';
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import 'package:hello_wallpaper/common/components/view_state_widget.dart';
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import 'package:hello_wallpaper/common/network/dio_client.dart';
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import 'package:hello_wallpaper/common/utils/filesize_util.dart';
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import 'package:hello_wallpaper/common/utils/local_path_util.dart';
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import 'package:hello_wallpaper/common/utils/log_print.dart';
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import 'package:hello_wallpaper/common/utils/num_util.dart';
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class DownloadUtil {
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/// 下载文件
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static Future downloadFile(String imageUrl, Function(String savePath) callBack) async {
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var process = 0.0.obs;
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var processStr = ''.obs;
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var cancelToken = CancelToken();
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Get.showSnackbar(GetSnackBar(
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borderRadius: 8.r,
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margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 16).w,
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snackPosition: SnackPosition.TOP,
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backgroundColor: Colors.white,
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titleText: const Text(
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'downloading...',
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style: TextStyle(color: Colors.black, fontWeight: FontWeight.w500),
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),
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messageText: Obx(() {
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return Row(
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children: [
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loadingView(
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valueColor: const AlwaysStoppedAnimation<Color>(Colors.black),
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value: process.value,
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),
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SizedBox(width: 10.w),
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Expanded(
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child: Text(
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processStr.value,
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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style: TextStyle(
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fontSize: 14.sp,
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color: Colors.black,
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),
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),
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),
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],
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);
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}),
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));
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Directory dir = await LocalPathUtil.getTemporaryPath();
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bool exist = await dir.exists();
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if (!exist) {
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// 若目录不存在，先创建
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await dir.create();
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}
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String savePath = '${dir.path}/${DateTime.now().millisecondsSinceEpoch}.jpg';
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LogPrint.d('壁纸保存位置：$savePath');
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await DioClient().download(imageUrl, savePath, cancelToken: cancelToken, onReceiveProgress: (int count, int total) {
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if (total != -1) {
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process.value = NumUtil.strToDouble(NumUtil.formatNum(count / total));
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processStr.value = '${FileSizeUtil.fileSize(count)}/${FileSizeUtil.fileSize(total)}';
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}
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}, success: () {
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Get.back();
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callBack(savePath);
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}, fail: (err) {
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Get.back();
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});
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}
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}
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