How to show notification from Android wear watchface

Question

I am trying to show a notification from my Watch face, as I want to show additional information when the user first opens the watchface.

This is similar to the GMT watch face that is installed with the LG G Watch R, that asks the user to swipe left to select the timezone.

This code does not seem to work for me:

  Notification.Builder builder = new Notification.Builder(context)
                .setContentTitle("Title")
                .setContentText("Content");

        ((NotificationManager) getSystemService(NOTIFICATION_SERVICE))
                .notify(1, builder.build());

This was copied from one of Android wear's examples (was not used in a watchface example, just a regular wear app)

Answer 1

You are most likely missing the icon, you need to specify the icon for Android to show your notification. Try specifying everything that the example from the docs mentions:

Notification noti = new Notification.Builder(mContext)
         .setContentTitle("New mail from " + sender.toString())
         .setContentText(subject)
         .setSmallIcon(R.drawable.new_mail)
         .setLargeIcon(aBitmap)
         .build();