question: public static int compileShader ( final int shaderType , final String shaderSource ) { int shaderHandle = GLES20 . glCreateShader ( shaderType ) ; if ( shaderHandle != 0 ) { GLES20 . glShaderSource ( shaderHandle , shaderSource ) ; GLES20 . glCompileShader ( shaderHandle ) ; final int [ ] compileStatus = new int [ 1 ] ; GLES20 . glGetShaderiv ( shaderHandle , GLES20 . GL_COMPILE_STATUS , compileStatus , 0 ) ; if ( compileStatus [ 0 ] == 0 ) { Log . e ( TAG , "Error compiling shader: " + GLES20 . glGetShaderInfoLog ( shaderHandle ) ) ; GLES20 . glDeleteShader ( shaderHandle ) ; shaderHandle = 0 ; } } if ( shaderHandle == 0 ) { throw new RuntimeException ( "Error creating shader." ) ; } return shaderHandle ; }
target:  Helper function to compile a shader.