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copied!<p>i created <code>Service</code> to download movies and notificate progress, and i found a problem when i start downloading and then exit from app my Service create new without destroying the previous one.</p> <p><strong>Log :</strong> </p> <pre><code> CREATE // I press Download button Service Created START RUN CREATE // I exit from app and it creates new, without DESTROY START RUN START // I press to stop downloading DESTROY </code></pre> <p><strong>DownloadManager.java</strong></p> <pre><code>public class DownloadManager extends Service{ private ExecutorService exec; private int mb = 1024*1024; private int Notifid; private int progressPercent; private String title; private String url; private boolean serviceWork = true; private NotificationManager manager; private NotificationCompat.Builder builder; @Override public void onCreate() { super.onCreate(); exec = Executors.newFixedThreadPool(1); builder = new NotificationCompat.Builder(getApplicationContext()); manager = (NotificationManager) getApplicationContext().getSystemService(Context.NOTIFICATION_SERVICE); } @Override public int onStartCommand(Intent intent, int flags, int startId) { url = intent.getStringExtra(C.SERVICE_URL); title = intent.getStringExtra(C.SERVICE_TITLE); if(url.equals("cancel")){ stopSelf(); } else { Run run = new Run(url, title); serviceWork = true; exec.execute(run); } Notifid = 0x45; return START_REDELIVER_INTENT; } @Override public void onDestroy() { if(url.equals("cancel")){ cancel(); } serviceWork = false; super.onDestroy(); } void generateNotify(String msg1, String msg2){ builder.setAutoCancel(false); builder.setOngoing(true); builder.setContentTitle(msg1); builder.setContentText(msg2); builder.setSmallIcon(R.drawable.ic_launcher, 0); builder.setTicker(msg1); builder.setProgress(0, 0, true); Intent intent = new Intent(this, DownloadManager.class); intent.putExtra(C.SERVICE_URL, "cancel"); PendingIntent pending = PendingIntent.getService(this, 0, intent, 0); builder.setContentIntent(pending); manager.notify(Notifid, builder.build()); } void progress(final int progress, final String msg){ new Thread( new Runnable() { @Override public void run() { builder.setProgress(100, progress, false); builder.setContentText(msg); manager.notify(Notifid, builder.build()); } } ).start(); } void ticker(String msg1){ builder.setTicker(msg1); builder.setContentText(msg1); manager.notify(Notifid, builder.build()); } void cancel(){ manager.cancel(Notifid); } void cancable(){ builder.setOngoing(false); Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(Uri.parse("sdcard/Mover/"+title+".mp4"), "video/*"); PendingIntent pending = PendingIntent.getActivity(this, 0, intent, 0); builder.setContentIntent(pending); builder.setAutoCancel(true); manager.notify(Notifid, builder.build()); } class Run implements Runnable{ private String url; private String title; private int count; private int fileLength; public Run(String url, String title) { this.url = url; this.title = title; } @Override public void run() { try{ // Создаем подключение к ссылке. URL openUrl = new URL(url); URLConnection connection = openUrl.openConnection(); connection.connect(); // Проверяем наличие папки если отсуствует создаем. File file = new File("sdcard/Mover/"); file.mkdirs(); // Размер файла fileLength = connection.getContentLength(); // Загружаем конетнт InputStream ips = new BufferedInputStream(openUrl.openStream()); OutputStream ops = new FileOutputStream("sdcard/Mover/"+title+".mp4"); // Показываем уведомление DownloadManager.this.generateNotify(title, "Всего: " +format(fileLength)); byte[] data = new byte[1024]; int total = 0; int last = 0; int progress = 1; int lasttotal = 0; int speed = 0; long current = System.currentTimeMillis(); // Читаем while ((count = ips.read(data)) != -1) { if(serviceWork){ ops.write(data, 0, count); total += count; long now = System.currentTimeMillis(); // Определяем скорость загрзки. // Для этого делаем проверку на каждую секунду if(now > current + 1000){ current = now; speed = (total - lasttotal)/1024; lasttotal = total; } progressPercent = (total*100)/fileLength; if(last != progressPercent){ last = progressPercent; progress++; DownloadManager.this.progress(progress, "Всего: " +format(fileLength) + " / " + format(total) + " / " + speed + "KB/s"); } } } ops.flush(); // Закрываем ops.close(); ips.close(); } catch(Exception e){ e.printStackTrace(); } finish(); } void finish(){ DownloadManager.this.ticker("Загрузка успешно завершена."); DownloadManager.this.stopSelf(); DownloadManager.this.cancable(); } void stop(){ DownloadManager.this.stopSelf(); DownloadManager.this.cancel(); } } public String format(int m){ String size = m%mb+""; size = size.substring(0, Math.min(size.length(), 2)); return m/mb + "." + size + "мб"; } @Override public IBinder onBind(Intent intent) { return null; } </code></pre> <p>}</p>

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