cannot implement GLSurfaceView.RENDERMODE_WHEN_DIRTY

I'm trying simply to display an openGL surface when I click the screen using GLSurfaceView.RENDERMODE_WHEN_DIRTY mode

but the surface does not display when I click it , why ?

my Activity :

public class ViewManager extends Activity {
    private GLSurfaceView surfaceView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        surfaceView = new GLSurfaceView(this);
        surfaceView.setEGLContextClientVersion(2);
        surfaceView.setRenderer(new MyRenderer());
        surfaceView.setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY);

        surfaceView.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                if(event!=null){
                    if (event.getAction()==MotionEvent.ACTION_DOWN)
                        surfaceView.requestRender();
                    return true;
                }else{
                    return false;
                }
            }
        });

    }

    @Override
    protected void onResume() {
        super.onResume();
        surfaceView.onResume();
    }

    @Override
    protected void onPause() {
        super.onPause();
        surfaceView.onPause();
    }
}