Android中的通知不起作用

Question

i'm trying to show notifications sent by my app, but they don't work. In my app, given a condition, the notification must be shown. This is the method I'm using.

public void showNotification(){

    NotificationCompat.Builder notificacion = new NotificationCompat.Builder(MapsScreen.this);
    notificacion.setTicker("Bicis cerca")
            .setContentTitle("Bicis cerca")
            .setContentText("Bicis a menos de " + ProfileScreen.getDistance())
            .setSound(Uri.parse("android.resource://com.app.sb" + R.raw.bike));

    PendingIntent myPendingIntent;
    Intent myIntent = new Intent();
    Context myContext = getApplicationContext();

    myIntent.setClass(myContext, MapsScreen.class);
    myPendingIntent = PendingIntent.getActivity(myContext, 0, myIntent, 0);
    notificacion.setContentIntent(myPendingIntent);

    Notification n = notificacion.build();

    NotificationManager nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    nm.notify(1,n);

    Log.d("Status", ": entrando");
}

This method is called after the condition is triggered, and the mehtod works because it writes on the log.

Thanks so much.

Answer 1

You are missing a compulsory argument.

setSmallIcon , setContentTitle , setContentMessage are compulsory.

Add setSmallIcon to your NotificationBuilder and it should work.

Reference: Android Developers