我搜索了很多但是找不到一个令人满意的答案。 我已经简单创建了一个方法,当调用时,会在Log.i()中打印所有可用的下载状态; 下面是该方法:
DownloadManager downloadManager = (DownloadManager)getSystemService(Context.DOWNLOAD_SERVICE);
DownloadManager.Query query = new DownloadManager.Query();
Cursor c = downloadManager.query(query);
while (c.moveToNext()) {
switch(c.getInt(c.getColumnIndex(DownloadManager.COLUMN_STATUS))) {
case DownloadManager.STATUS_FAILED:
Log.i("46dl","Download failed!");
break;
case DownloadManager.STATUS_PAUSED:
Log.i("46dl","Download paused!");
break;
case DownloadManager.STATUS_PENDING:
Log.i("46dl","Download pending!");
break;
case DownloadManager.STATUS_RUNNING:
Log.i("46dl","Download in progress!");
break;
case DownloadManager.STATUS_SUCCESSFUL:
Log.i("46dl","Download complete!");
break;
default:
Log.i("46dl","Download is nowhere in sight");
break;
}
}
但这只适用于从我的应用程序开始下载的情况;例如:
Request request = new Request(Uri.parse("http://www.something.com/img/img4.jpg"));
downloadManager.enqueue(request);
对于使用其他应用程序(例如浏览器)下载的其他文件,日志中没有任何行写入。
我有什么遗漏吗?感谢您的帮助!