SurfaceView shows black screen - Android

Question

Basically I want to use SurfaceView for animation. Therefore the class implements Runnable. To experiment, I want to draw a circle. However, it shows only a black screen.

Answer 1

At your DrawStripFrame constructor set alpha to zero. Like this:

public DrawStripFrame (Context context){
    super (context);
    holder = getHolder();

    setAlpha(0); // this is the secret
}