render to texture, then apply a texture. does not work, help

OpenGL OpenGL: Basic Coding
1

GLES20. Android.

Prompt, please, as to render to a texture, and then render this texture mesh. Not working for me:


private int wi=displayW;
private int he=displayH;


//---------------in onSurfaceCreated




              GLES20.glGenFramebuffers(1, this.frameBuffer, 0);
	   
	
	    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, frameBuffer[0]);
	    
	 
	    
	    GLES20.glGenRenderbuffers(1, renderBuffer, 0);
	    
	   
	    GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, renderBuffer[0]);
	    
	    
	
		GLES20.glGenTextures(1, this.textureBuffer, 0);
		GLES20.glActiveTexture(GLES20.GL_TEXTURE1);
		GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, this.textureBuffer[0]); 

		
		
		GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, wi, he, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
		

		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE); 
		GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_NEAREST);
		GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_NEAREST);



        //-----------------------onDrawFrame

      GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, frameBuffer[0]);
        
        GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, this.textureBuffer[0], 0);
        
        GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, renderBuffer[0]);
        
        GLES20.glRenderbufferStorage(GLES20.GL_RENDERBUFFER, 
	            GLES20.GL_DEPTH_COMPONENT16 , wi,he);
	    
	
	    GLES20.glFramebufferRenderbuffer(GLES20.GL_FRAMEBUFFER,
	           GLES20.GL_DEPTH_ATTACHMENT, GLES20.GL_RENDERBUFFER,
	            renderBuffer[0]);


     ........render

    GLES20.glFlush();


       GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
       GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, 0);
    
       
     .......render mesh with texture