Android OpenGL Application

FlySimClientActivity.java

package com.android.apps;

import com.example.android.apis.R;
import android.app.Activity;
import android.os.Bundle;
import android.opengl.GLSurfaceView;
import android.view.Window;
import android.view.WindowManager;


public class FlySimClientActivity extends Activity {
	 private GLSurfaceView glView;   // Use GLSurfaceView
	  
	   // Call back when the activity is started, to initialize the view
	   @Override
	   protected void onCreate(Bundle savedInstanceState) {
	      super.onCreate(savedInstanceState);
	      
	      this.requestWindowFeature(Window.FEATURE_NO_TITLE);
	      getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
	      
	      glView = new GLSurfaceView(this);           // Allocate a GLSurfaceView
	      glView.setRenderer(new FlySimRenderer(this)); // Use a custom renderer
	      this.setContentView(glView);                // This activity sets to GLSurfaceView
	   }
	   
	   // Call back when the activity is going into the background
	   @Override
	   protected void onPause() {
	      super.onPause();
	      glView.onPause();
	   }
	   
	   // Call back after onPause()
	   @Override
	   protected void onResume() {
	      super.onResume();
	      glView.onResume();
	   }
    
}

FlySimRenderer.java

package com.android.apps;

import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;

import android.content.Context;
import android.opengl.GLU;
import android.opengl.GLSurfaceView.Renderer;
import android.util.Log;

public class FlySimRenderer implements Renderer {
	   Context context;   // Application's context
	   
	   // Constructor with global application context
	   public FlySimRenderer(Context context) {
	      this.context = context;
	   }
	   
	   // Call back when the surface is first created or re-created
	   @Override
	   public void onSurfaceCreated(GL10 gl, EGLConfig config) {
	      gl.glClearColor(0.0f, 255.0f, 0.0f, 1.0f);  // Set color's clear-value to black
	      gl.glClearDepthf(1.0f);            // Set depth's clear-value to farthest
	      gl.glEnable(GL10.GL_DEPTH_TEST);   // Enables depth-buffer for hidden surface removal
	      gl.glDepthFunc(GL10.GL_LEQUAL);    // The type of depth testing to do
	      gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, GL10.GL_NICEST);  // nice perspective view
	      gl.glShadeModel(GL10.GL_SMOOTH);   // Enable smooth shading of color
	      gl.glDisable(GL10.GL_DITHER);      // Disable dithering for better performance
	  
	      // You OpenGL|ES initialization code here
	      // ......
	   }
	   
	   // Call back after onSurfaceCreated() or whenever the window's size changes
	   @Override
	   public void onSurfaceChanged(GL10 gl, int width, int height) {
	      if (height == 0) height = 1;   // To prevent divide by zero
	      float aspect = (float)width / height;
	   
	      // Set the viewport (display area) to cover the entire window
	      Log.w("DIM", "width: " + width + "; height: " + height);
	      gl.glViewport(0, 0, width, height);
	  
	      // Setup perspective projection, with aspect ratio matches viewport
	      gl.glMatrixMode(GL10.GL_PROJECTION); // Select projection matrix
	      gl.glLoadIdentity();                 // Reset projection matrix
	      // Use perspective projection
	      GLU.gluPerspective(gl, 45, aspect, 0.1f, 100.f);
	      
	  
	      gl.glMatrixMode(GL10.GL_MODELVIEW);  // Select model-view matrix
	      gl.glLoadIdentity();                 // Reset
	  
	      // You OpenGL|ES display re-sizing code here
	      // ......
	   }
	   
	   // Call back to draw the current frame.
	   @Override
	   public void onDrawFrame(GL10 gl) {
	      // Clear color and depth buffers using clear-value set earlier
	      gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);

	     
	      // You OpenGL|ES rendering code here
	      // ......
	   }
}