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I am trying to make a dynamic small icon on Notification bar. And it worked well on Android 8.0.0. But there is problem on Android 6.0.1.

Here is the code:

Intent notificationIntent = new Intent(getApplicationContext(), ResumeMainActivity.class);
 intent.putExtra("type", "exit");
 PendingIntent pendingIntent = PendingIntent.getActivity(getApplicationContext(),
 0, notificationIntent, 0);
 Bundle a = new Bundle();
 a.putString("type", "exit");

 Intent snoozeIntent = new Intent(getApplicationContext(), Foreground.class);
 snoozeIntent.putExtra(EXTRA_NOTIFICATION_ID, 0);
 snoozeIntent.setAction("Stop");
 PendingIntent snoozePendingIntent =
 PendingIntent.getService(getApplicationContext(), 0, snoozeIntent, 0);


 Notification.Builder notification = null;
 NotificationCompat.Builder notificationBelow = null;
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) 
 notification = new Notification.Builder(getApplicationContext())
 .setContentTitle("Title")
 .setContentText("Tap to open app.")
 .setSmallIcon(Icon.createWithBitmap(drawText(totalDataSent, totalDataCollected)))

 .setContentIntent(pendingIntent)
 .setExtras(a);
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) 
 notification.setChannelId(CHANNEL_ID);
 
 notification.addAction(new Notification.Action.Builder(Icon.createWithResource(getApplicationContext(), R.drawable.ic_launcher_foreground), "Stop", snoozePendingIntent).build());
 else 
 notificationBelow = new NotificationCompat.Builder(getApplicationContext(), CHANNEL_ID)
 .setContentTitle("Title")
 .setContentText("Tap to open app.")
 .setSmallIcon(R.drawable.ic_launcher_background)
 .setContentIntent(pendingIntent)
 .setExtras(a)
 .setChannelId(CHANNEL_ID)
 .addAction(R.drawable.ic_launcher_foreground, "Stop", snoozePendingIntent);
 
 NotificationManager manager = (NotificationManager)
 context.getSystemService(Context.NOTIFICATION_SERVICE);
 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) 
 manager.notify(1, notification.build());
 else 
 manager.notify(1, notificationBelow.build());
 

And I get Couldn't update icon: StatusBarIcon(icon=Icon(typ=RESOURCE pkg=com.example.app id=0x00000000) visible user=0 )

Here is the error:

E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.app, PID: 20774
android.app.RemoteServiceException: Bad notification posted from package com.example.app: Couldn't update icon: StatusBarIcon(icon=Icon(typ=RESOURCE pkg=com.example.app id=0x00000000) visible user=0 )
 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2019)
 at android.os.Handler.dispatchMessage(Handler.java:102)
 at android.os.Looper.loop(Looper.java:158)
 at android.app.ActivityThread.main(ActivityThread.java:7224)
 at java.lang.reflect.Method.invoke(Native Method)
 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)