Я загружаю несколько файлов один за другим в сервис.Я хочу обновить прогресс загрузки в уведомлении.Но мое уведомление не обновляется, когда я убиваю свое приложение.Скачать работы на разные темы.Загрузка работает нормально, когда приложение работает.Когда я убиваю приложение из недавнего раздела, я не могу обновить уведомление.
Вот мой DownloadService class
public class DownloadService extends Service {
public static DownloadMap<String, Downloadables> map = new DownloadMap<String, Downloadables>();
private static Thread thread;
private DownloadCancelReceiver receiver;
public DownloadService() {
}
public class BackgroundThread extends Thread {
int serviceId;
private DownloadMap<String, Downloadables> map;
private SpeedRevisionDatabase helper;
private final int notificationId = 1;
private RemoteViews remoteViewsSmall, remoteViewsBig;
private NotificationManagerCompat notificationManager;
private NotificationCompat.Builder mBuilder, mBuilderComplete, downloadFailBuilder;
public BackgroundThread(int serviceId, DownloadMap<String, Downloadables> map) {
this.serviceId = serviceId;
this.map = new DownloadMap<>();
this.map.putAll(map);
}
@Override
public void run() {
remoteViewsSmall = new RemoteViews(getApplicationContext().getPackageName(), R.layout.download_notification_small);
remoteViewsBig = new RemoteViews(getApplicationContext().getPackageName(), R.layout.download_notification);
Intent cancelDownload = new Intent("CANCEL_DOWNLOAD");
PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 100, cancelDownload, 0);
remoteViewsBig.setOnClickPendingIntent(R.id.tvCancel, pendingIntent);
notificationManager = NotificationManagerCompat.from(DownloadService.this);
mBuilder = new NotificationCompat.Builder(DownloadService.this, "default");
initChannels(DownloadService.this);
mBuilder.setContentTitle("Download is in progress")
.setContentText("Please wait...")
.setSmallIcon(R.mipmap.download)
.setOngoing(true)
.setCustomContentView(remoteViewsSmall)
.setCustomBigContentView(remoteViewsBig)
.setPriority(NotificationCompat.PRIORITY_HIGH);
notificationManager.notify(notificationId, mBuilder.build());
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}
try {
String path = getApplicationContext().getApplicationInfo().dataDir + "/" + "UEP";
File uepFolder = new File(path);
if (!uepFolder.exists()) {
uepFolder.mkdir();
}
int i = 0;
while (map.entrySet().iterator().hasNext()) {
Log.e("WhileCheck", "Now i is " + i);
Map.Entry data = (Map.Entry) map.entrySet().iterator().next();
try {
Downloadables download = (Downloadables) data.getValue();
if (NetworkUtil.getConnectivityStatus(getApplicationContext()) == 0) {
throw new InternetDisconnectedException("Internet Disconnected");
}
HttpURLConnection urlConnection;
InputStream inputStream;
//finding file on internet
try {
URL url = new URL(download.URL);
if (url.toString().endsWith(".xps")) {
url = new URL(url.toString().replace(".xps", ".pdf"));
}
urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.connect();
inputStream = urlConnection.getInputStream();
} catch (IOException e) {
Log.e("IOException", "" + e.getMessage());
i++;
map.remove(data.getKey());
notificationManager.notify(notificationId, mBuilder.build());
continue;
}
//Downloading file over internet
File file = new File(uepFolder + "/" + download.FileName + "" + download.Format + ".download");
try {
int fileSize = urlConnection.getContentLength();
FileOutputStream fileOutput = new FileOutputStream(file);
byte[] buffer = new byte[1024];
int bufferLength = 0;
int count = 0;
int previousProgress = 0;
while ((bufferLength = inputStream.read(buffer)) > 0) {
if (this.isInterrupted()) {
throw new InterruptedException("Thread has been kill (Destroyed)");
}
fileOutput.write(buffer, 0, bufferLength);
count += bufferLength;
int progress = (int) (count * 100L / (float) fileSize);
if (previousProgress > 999) {
updateProgress(map.insertedCount, i, progress, download.Name);
notificationManager.notify(notificationId, mBuilder.build());
previousProgress = 0;
}
previousProgress++;
}
fileOutput.close();
} catch (IOException e) {
Log.e("IOException", "" + e.getMessage());
i++;
map.remove(data.getKey());
continue;
}
File actualFile = new File(uepFolder + "/" + download.FileName + "" + download.Format);
file.renameTo(actualFile);
Log.e("Downloaded",""+actualFile.getAbsoluteFile());
} catch (InterruptedException | InternetDisconnectedException e) {
throw e;
}
i++;
map.remove(data.getKey());
Log.e("Downloaded", "Remaining files are "+map.size());
}
Log.e("WhileCheck", "While End");
// Due to thread, sometime the sequence of code flow is not in correct flow, and "Download complete" Notifaction is getting shown
// Hence this check is required.
if (this.isInterrupted()) {
throw new InterruptedException("Thread has been kill (Destroyed)");
}
notificationManager.cancel(notificationId);
mBuilderComplete = new NotificationCompat.Builder(DownloadService.this, "default");
initChannels(DownloadService.this);
mBuilderComplete.setOngoing(false)
.setContentTitle("Download Complete")
.setColor(Color.WHITE)
.setSmallIcon(R.drawable.download);
notificationManager.notify(2, mBuilderComplete.build());
Log.e("DownloadingService", "File downloaded successfully");
stopSelf();
map.insertedCount = 0;
} catch (InterruptedException e) {
closeNotification();
Log.e("InterruptedException", "" + e.getMessage());
} catch (InternetDisconnectedException e) {
stopSelf();
closeNotification();
showNotification("Internet disconnected", "Download failed. Try again later.");
Log.e("InternetDisconnect", "" + e.getMessage());
}
}
private void updateProgress(int totalFiles, int currentFileCount, int currentProgress, String fileName) {
remoteViewsSmall.setTextViewText(R.id.tvOverAll, currentFileCount + "/" + totalFiles);
remoteViewsSmall.setProgressBar(R.id.overallProgress, totalFiles, currentFileCount, false);
remoteViewsBig.setTextViewText(R.id.tvOverAll, currentFileCount + "/" + totalFiles);
remoteViewsBig.setTextViewText(R.id.tvFileName, "Downloading " + fileName);
remoteViewsBig.setTextViewText(R.id.tvCurrentProgress, currentProgress + "%");
remoteViewsBig.setProgressBar(R.id.overallProgress, totalFiles, currentFileCount, false);
remoteViewsBig.setProgressBar(R.id.currentProgress, 100, currentProgress, false);
}
public void closeNotification() {
if (notificationManager != null)
notificationManager.cancel(notificationId);
}
public void showNotification(String title, String message) {
downloadFailBuilder = new NotificationCompat.Builder(DownloadService.this, "default");
initChannels(DownloadService.this);
downloadFailBuilder.setOngoing(false)
.setContentTitle(title)
.setContentText(message)
.setColor(Color.WHITE)
.setSmallIcon(android.R.drawable.stat_sys_warning);
notificationManager.notify(3, downloadFailBuilder.build());
}
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (intent != null) {
ArrayList<Downloadables> list = (ArrayList<Downloadables>) intent.getSerializableExtra("downloadList");
for (Downloadables d : list) {
String key = d.Name + "" + d.FileName;
map.put(key, d);
}
if (thread == null || !thread.isAlive()) {
thread = new BackgroundThread(startId, map);
receiver = new DownloadCancelReceiver();
IntentFilter intentFilter = new IntentFilter();
intentFilter.addCategory(Intent.CATEGORY_DEFAULT);
intentFilter.addAction("CANCEL_DOWNLOAD");
registerReceiver(receiver, intentFilter);
thread.start();
}
}
return START_STICKY;
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onDestroy() {
Log.e("Service", " Stop");
try {
thread.interrupt();
} catch (Exception e) {
Log.e("Exception", "" + e.getMessage());
}
map.clear();
unregisterReceiver(receiver);
//closeNotification();
}
public static class DownloadCancelReceiver extends BroadcastReceiver {
public DownloadCancelReceiver() {
}
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equalsIgnoreCase("CANCEL_DOWNLOAD")) {
Intent intent1 = new Intent(context, DownloadService.class);
context.stopService(intent1);
}
}
}
public void initChannels(Context context) {
if (Build.VERSION.SDK_INT < 26) {
return;
}
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
NotificationChannel channel = new NotificationChannel("default", "Channel name", NotificationManager.IMPORTANCE_LOW);
channel.setDescription("Channel description");
channel.setImportance(NotificationManager.IMPORTANCE_LOW);
channel.setSound(null, null);
notificationManager.createNotificationChannel(channel);
}
private class InternetDisconnectedException extends Exception {
public InternetDisconnectedException(String message) {
super(message);
}
}
public static class DownloadMap<String, Downloadables> extends HashMap<String, Downloadables> {
public int insertedCount;
@Override
public Downloadables put(String key, Downloadables value) {
insertedCount++;
return super.put(key, value);
}
}
}
И из активности я запускаю службу вот так.
ArrayList<Downloadables> list = helper.GetVideoFileList();
Intent intent1 = new Intent(SRDownloadActivity.this, DownloadService.class);
intent1.putExtra("downloadList", list);
startService(intent1);
Я даже могу добавлять файлы в HashMap, пока идет загрузка.Это также работало нормально.
Я не могу понять, почему он не работает в фоновом режиме, поскольку он находится в другом потоке.
Вот мое уведомление, похожее на
