How to open android app on all devices when receive push notification (GCM) while app is closed?

Question

I want to open app when device receive push notification from GCM same time app is already closed,I tried this code it works on some devices not on all devices. Below is my code snippet,

@Override
public void onHandleIntent(Intent intent) {
 notificationManager(this, getString(R.string.new_ride), true);

}

public static void notificationManager(Context context, String message, boolean 
ring) {

        try {
            long when = System.currentTimeMillis();

            NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

            Log.v("message",","+message);

            Intent notificationIntent = new Intent(context, SplashNewActivity.class);


            notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
            PendingIntent intent = PendingIntent.getActivity(context, 0, notificationIntent, 0);

            NotificationCompat.Builder builder = new NotificationCompat.Builder(context);
            builder.setAutoCancel(true);
            builder.setContentTitle(context.getString(R.string.app_name));
            builder.setStyle(new NotificationCompat.BigTextStyle().bigText(message));
            builder.setContentText(message);
            builder.setTicker(message);

            if(ring){
                builder.setLights(Color.GREEN, 500, 500);
            }
            else{
                builder.setDefaults(Notification.DEFAULT_ALL);
            }

            builder.setWhen(when);
            builder.setLargeIcon(BitmapFactory.decodeResource(context.getResources(), R.drawable.ic_launcher));
            builder.setSmallIcon(R.drawable.notif_icon);
            builder.setContentIntent(intent);
            Notification notification = builder.build();
            notificationManager.notify(NOTIFICATION_ID, notification);
            //Open the App while new ride request arrives
            Intent dialogIntent = new 
            Intent(getBaseContext(),SplashNewActivity.class);                                            
            dialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);                                           
            getApplication().startActivity(dialogIntent);
            } catch (Exception e) {
                            e.printStackTrace();
            }

}

Please let me know is it possible on all devices or it is device dependent. Thanks in advance.

Answer 1

I'm using this method inside Service class:

Intent myAppIntent = launchIntent(this); 
           startActivity(myAppIntent);

where

@SuppressLint("NewApi")
    public static Intent launchIntent(Context ctx) {
        final ActivityManager am = (ActivityManager) ctx.getSystemService(Context.ACTIVITY_SERVICE);
        Intent intent = new Intent();
        boolean activated = false;


        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            List<ActivityManager.AppTask> tasks = am.getAppTasks();

            for (ActivityManager.AppTask task: tasks){
                intent = task.getTaskInfo().baseIntent;
                intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                activated = true;
                break;
            }
        } else {
            @SuppressWarnings("deprecation")
            final List<ActivityManager.RecentTaskInfo> recentTaskInfos = am.getRecentTasks(1024,0);
            String myPkgNm = ctx.getPackageName();
            if (!recentTaskInfos.isEmpty()) {
                ActivityManager.RecentTaskInfo recentTaskInfo;
                final int size = recentTaskInfos.size();
                for (int i = 0; i < size; i++) {
                    recentTaskInfo = recentTaskInfos.get(i);
                    if (recentTaskInfo.baseIntent.getComponent().getPackageName().equals(myPkgNm)) {
                        intent = recentTaskInfo.baseIntent;
                        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                        activated = true;
                    }
                }
            }
        }
        if (!activated) {
            intent = new Intent(ctx, YourDefaultActivity.class);
            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        }

        return intent;
    }

do not forget about permission (that is deprecated in new APIs but nonetheless is needed)

<uses-permission android:name="android.permission.GET_TASKS" />

Answer 2

Try Alarm Manager. Hope this works!!

        Intent resultIntent = new Intent(this, SplashNewActivity.class);
        // This ensures that the back button follows the recommended
        // convention for the back key.
        TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);

        // Adds the back stack for the Intent (but not the Intent itself).
        stackBuilder.addParentStack(SplashNewActivity.class);

        // Adds the Intent that starts the Activity to the top of the stack.
        stackBuilder.addNextIntent(resultIntent);
        PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(
                0, PendingIntent.FLAG_UPDATE_CURRENT);

        long futureInMillis = System.currentTimeMillis();
        AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
        alarmManager.set(AlarmManager.RTC_WAKEUP, futureInMillis, resultPendingIntent);

call this code in your onMessageReceived method.