Android DownloadManager获取文件名
在我的应用中,您可以下载一些文件。我使用Android
DownloadManager
类进行下载。下载完成后,应该显示一条消息,说明文件已下载。问题是,可能同时有2,3或4个下载。我的BroadcastReceiver
代码如下所示:
receiver_complete = new BroadcastReceiver(){ @Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(DownloadManager.ACTION_DOWNLOAD_COMPLETE) ){
Toast.makeText(MainActivity.this, MainActivity.this.getString(R.string.download_finished, "Here should be the name", Toast.LENGTH_SHORT).show();
}
}
};
如何获得完成下载的当前文件名?
非常感谢你。
回答:
我想您想在if
块中放入类似的内容。替换YOUR_DM
为您的DownloadManager实例。
Bundle extras = intent.getExtras();DownloadManager.Query q = new DownloadManager.Query();
q.setFilterById(extras.getLong(DownloadManager.EXTRA_DOWNLOAD_ID));
Cursor c = YOUR_DM.query(q);
if (c.moveToFirst()) {
int status = c.getInt(c.getColumnIndex(DownloadManager.COLUMN_STATUS));
if (status == DownloadManager.STATUS_SUCCESSFUL) {
// process download
title = c.getString(c.getColumnIndex(DownloadManager.COLUMN_TITLE));
// get other required data by changing the constant passed to getColumnIndex
}
}
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