Benefits of the New API - Learn OpenGL ES: For Mobile Game and Graphics Development - page 22

Figure 1-16 . “Quick fix errors” using Ctrl and 1
To fix the last error, we have to create the GLES20Renderer class. Amazingly,
SDK automates even this step, so you can “quick fix” it. Select the first option ( Fig-
ure 1-17 ) , to create the class GLES20Renderer , which implements an interface
GLSurfaceView.Renderer .