This mini project shows how to use GLSurfaceView to draw a triangle with OpenGL ES 2.0 which in addition to rotating automatically, you can also rotate by yourself.
https://developer.android.com/develop/ui/views/graphics/opengl/about-opengl
Drawing a triangle with assist of OpenGL ES 2.0
This mini project shows how to use GLSurfaceView to draw a triangle with OpenGL ES 2.0 which in addition to rotating automatically, you can also rotate by yourself.
https://developer.android.com/develop/ui/views/graphics/opengl/about-opengl