Java 如何在下载接收器中访问本地文件名?
我正在尝试获取下载文件的文件路径,我提供了接收器,该接收器可以工作,但如何获取文件名/路径 内部接收Java 如何在下载接收器中访问本地文件名?,java,android,broadcastreceiver,Java,Android,Broadcastreceiver,我正在尝试获取下载文件的文件路径,我提供了接收器,该接收器可以工作,但如何获取文件名/路径 内部接收 String action = intent.getAction(); if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) { DownloadManager.Query q = new DownloadManager.Query(); Cursor c = this.query(q); // how to
String action = intent.getAction();
if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) {
DownloadManager.Query q = new DownloadManager.Query();
Cursor c = this.query(q); // how to get access to this since there is no instance of DownloadManager
try {
String filePath = c.getString(c.getColumnIndex(DownloadManager.COLUMN_LOCAL_FILENAME));
Log.i("DOWNLOAD LISTENER", filePath);
} catch(Exception e) {
} finally {
c.close();
}
}
无法解析方法查询(…)
您可以通过
Context
的getSystemService()
方法获得DownloadManager
实例
像这样的方法应该会奏效:
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) {
// get the DownloadManager instance
DownloadManager manager = (DownloadManager) context.getSystemService(Context.DOWNLOAD_SERVICE);
DownloadManager.Query q = new DownloadManager.Query();
Cursor c = manager.query(q);
if(c.moveToFirst()) {
do {
String name = c.getString(c.getColumnIndex(DownloadManager.COLUMN_LOCAL_FILENAME));
Log.i("DOWNLOAD LISTENER", "file name: " + name);
} while (c.moveToNext());
} else {
Log.i("DOWNLOAD LISTENER", "empty cursor :(");
}
c.close();
}
}