So I used the code here to first initialize the OpenGL in my Live Wallpaper. But now I need to activate the GLSL, but there’s no way to activate the it because the function setEGLContextClientVersion is missing.
Another solution would be to be able to put a view in a Live Wallpaper, being able to use GLSurfaceView would solve this problem.
Please take a look at ghisguth / blurred-lines-live.