Android OpenGL ES Transparent Background

Just some simple changes that I did to get this to work.

On my GLSurfaceView.Renderer:

public void onSurfaceCreated(GL10 gl, EGLConfig config) {    gl.glDisable(GL10.GL_DITHER);    gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT,            GL10.GL_FASTEST);     gl.glClearColor(0,0,0,0);     gl.glEnable(GL10.GL_CULL_FACE);     gl.glShadeModel(GL10.GL_SMOOTH);     gl.glEnable(GL10.GL_DEPTH_TEST);}

On my GLSurfaceView:

setEGLConfigChooser(8, 8, 8, 8, 16, 0);getHolder().setFormat(PixelFormat.TRANSLUCENT);

Your GLSurfaceView also requires setZOrderOnTop(true);

I use my own GLSurfaceView class to display charts (transparent background / overlay).My extended GLSurfaceView is embed via XML into a popover window.

<com.dsignmatters.iq_fitfunlite.GLPieChartView              android:id="@+id/gameprogress_chart"    android:layout_height="wrap_content"     android:layout_width="wrap_content"    ...

As part of the activity I added this code:

mGamesuccessPieChart = (GLSurfaceView) gameprogressView.findViewById(R.id.gameprogress_chart);mGamesuccessPieChart.setZOrderOnTop(true);

Last but not least my GLSurfaceView looks like this:

public class GLPieChartView extends GLSurfaceView {    public GLPieChartView(Context context) {        super(context);        initGL();    }    public GLPieChartView(Context context, AttributeSet attrs) {        super(context, attrs);        initGL();    }    void initGL() {        setEGLContextClientVersion(2);        setEGLConfigChooser(8,8,8,8,16,0);        setRenderer(new GLPieChartRenderer());        setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY);        getHolder().setFormat(PixelFormat.TRANSLUCENT);         } }

My renderer class GLPieChartRenderer does not call glClearColor at all.