Android: GLES20: Called unimplemented OpenGL ES API

Question

I am getting a \"Called unimplemented OpenGL ES API\" error, when trying the GLES20 Sample, provided by developer.android.com. I modified the sample, though. The reason was

Answer 1

See this post - triangle opengl in android

As mentioned there, the emulators do not support GL2, but as that post mentions, it worked for me on an actual device.