HBuilder W2A怎么监控下载是否完成
时间: 2023-12-23 08:06:28 浏览: 119
在HBuilder中,可以使用uni.downloadFile() API来下载文件,并通过回调函数来监控下载状态。
具体步骤如下:
1. 调用uni.downloadFile()方法下载文件,传入下载链接和目标路径参数。
```
uni.downloadFile({
url: 'http://example.com/file.zip',
filePath: 'download/file.zip',
success: function(res) {
console.log('下载成功!');
},
fail: function(res) {
console.log('下载失败:' + res.errMsg);
}
});
```
2. 监听下载进度,可以在success回调函数中获取到下载进度和临时文件路径等信息。
```
uni.downloadFile({
url: 'http://example.com/file.zip',
filePath: 'download/file.zip',
success: function(res) {
console.log('下载成功!' + res.tempFilePath);
},
fail: function(res) {
console.log('下载失败:' + res.errMsg);
},
progress: function(res) {
console.log('已下载 ' + res.progress + '%');
}
});
```
3. 在success回调函数中判断下载状态,根据返回的临时文件路径来判断下载是否完成。
```
uni.downloadFile({
url: 'http://example.com/file.zip',
filePath: 'download/file.zip',
success: function(res) {
if (res.statusCode === 200) {
console.log('下载成功!' + res.tempFilePath);
// 下载完成,可以进行其他操作
} else {
console.log('下载失败:' + res.statusCode);
}
},
fail: function(res) {
console.log('下载失败:' + res.errMsg);
},
progress: function(res) {
console.log('已下载 ' + res.progress + '%');
}
});
```
通过以上步骤,可以在HBuilder中监控下载是否完成。
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