Start activity from service takes too long

I have a Service that when one function gives to me true it will start a new Activity but it takes like 5 seconds...

I've read about this issue, and I've found on StackOverflow this example to "avoid" this bug..

Intent intent = new Intent(this, MainActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0); try {    pendingIntent.send(); } catch (PendingIntent.CanceledException e) {    e.printStackTrace(); } 

but sadly it doesn't start the Activity faster, I don't need to be inmmediate (better if it's possible), but I don't want to wait +5 seconds to launch the new Activity, do you knwo any trick to avoid this?

I'm using PendingIntent because I've found that guy that said that it should solve this issue : Starting an activity from a service after HOME button pressed without the 5 seconds delay

Note

If I press back button it launch it autommatically, 0 delay, but I'm looking pressing the home button.

2 Answers

Answers 1

I cannot comment everywhere yet, so I'm putting this solution of a similar problem as an answer

After much digging, found out the cause of the problem. Apparently it's not a bug, it is a feature which does not allow Services or BroadcastReceivers to launch activities for up to 5 seconds after home button is pressed. No easy way to overcome this.

More info here: https://code.google.com/p/android/issues/detail?id=4536

I replaced the activity with a Window added to the window manager of the running service. This does not cause any delay.

Source link Stackoverflow

Answers 2

First thing we cannot update any UI related stuff in service, neither calling activity nor updating any UI elements, 
Same problem i too have faced.

Then i have used EventBus library to communicate UI elements from service 
Below is the sample example

public class SendSPLocationService extends Service { Handler mHandler = new Handler(); Thread downloadThread; boolean isRunning = true; private VolleyHelper volleyHelper;  @Override public IBinder onBind(Intent intent) {     // TODO Auto-generated method stub     return null; }  @Override public void onCreate() {     //  Toast.makeText(this, " MyService Created ", Toast.LENGTH_LONG).show();     volleyHelper = new VolleyHelper(this);  }  @Override public int onStartCommand(Intent intent, int flags, int startId) {     final Timer t = new Timer();     t.schedule(new TimerTask() {         @Override         public void run() {             Log.d("run: ", "service is running!");              try {                                         EventBus.getDefault().post(new FutureJobEvent(false, error.networkResponse.statusCode, errorJson.getString("message")));              } catch (JSONException e) {                 e.printStackTrace();             }             // t.cancel();             Log.d("run: ", "service is stopped!");          }     }, 0, 5000);     return START_STICKY; } } 

Use below code for triggered event to observe..either in activity/fragment

@Override public void onStart() {     super.onStart();     if (!EventBus.getDefault().isRegistered(this))         EventBus.getDefault().register(this); }  @Override public void onStop() {     super.onStop();     if (EventBus.getDefault().isRegistered(this))         EventBus.getDefault().unregister(this); }  @Subscribe(threadMode = ThreadMode.MAIN)  public void onMessageEvent(TrackSPEvent event) {     if (event.success) {          startActivity(new Intent(this,MainActivity.class));  }  } 

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