我正在尝试重现DownloadManager在我的应用程序内的通知栏中显示的相同进度,但是我的进度从未发布。我正在尝试使用runOnUiThread()更新它,但是由于某种原因,它尚未更新。
我的下载:
String urlDownload = "https://dl.dropbox.com/s/ex4clsfmiu142dy/test.zip?token_hash=AAGD-XcBL8C3flflkmxjbzdr7_2W_i6CZ_3rM5zQpUCYaw&dl=1";
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(urlDownload));
request.setDescription("Testando");
request.setTitle("Download");
request.allowScanningByMediaScanner();
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, "teste.zip");
final DownloadManager manager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);
final long downloadId = manager.enqueue(request);
final ProgressBar mProgressBar = (ProgressBar) findViewById(R.id.progressBar1);
new Thread(new Runnable() {
@Override
public void run() {
boolean downloading = true;
while (downloading) {
DownloadManager.Query q = new DownloadManager.Query();
q.setFilterById(downloadId);
Cursor cursor = manager.query(q);
cursor.moveToFirst();
int bytes_downloaded = cursor.getInt(cursor
.getColumnIndex(DownloadManager.COLUMN_BYTES_DOWNLOADED_SO_FAR));
int bytes_total = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_TOTAL_SIZE_BYTES));
if (cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_STATUS)) == DownloadManager.STATUS_SUCCESSFUL) {
downloading = false;
}
final double dl_progress = (bytes_downloaded / bytes_total) * 100;
runOnUiThread(new Runnable() {
@Override
public void run() {
mProgressBar.setProgress((int) dl_progress);
}
});
Log.d(Constants.MAIN_VIEW_ACTIVITY, statusMessage(cursor));
cursor.close();
}
}
}).start();
我的statusMessage方法:
private String statusMessage(Cursor c) {
String msg = "???";
switch (c.getInt(c.getColumnIndex(DownloadManager.COLUMN_STATUS))) {
case DownloadManager.STATUS_FAILED:
msg = "Download failed!";
break;
case DownloadManager.STATUS_PAUSED:
msg = "Download paused!";
break;
case DownloadManager.STATUS_PENDING:
msg = "Download pending!";
break;
case DownloadManager.STATUS_RUNNING:
msg = "Download in progress!";
break;
case DownloadManager.STATUS_SUCCESSFUL:
msg = "Download complete!";
break;
default:
msg = "Download is nowhere in sight";
break;
}
return (msg);
}
我的日志运行正常,而我的下载正在运行时显示“正在进行下载!” 并完成“下载完成!”,但是进度没有相同,为什么?我真的需要一些帮助,真的很感谢其他逻辑