GLSurfaceView中添加button组件(示例是多activity中，使用openGL画一彩色旋转立方体)

添加下面几行代码可以在GLSurfaceView中增加一个Button按钮

Button b =   new   Button(   this );

b.setText(   "hello world" );

this .addContentView(b,   new   LayoutParams(LayoutParams. WRAP_CONTENT   ,LayoutParams. WRAP_CONTENT ));

示例：

public class openGLActivity extends Activity {

      

      

       //private openGLRender Render;

      

       public void onCreate(Bundle savedInstanceState) {

      super.onCreate(savedInstanceState);

      this.requestWindowFeature(Window. FEATURE_NO_TITLE); // (NEW)

        getWindow().setFlags(WindowManager.LayoutParams. FLAG_FULLSCREEN,

            WindowManager.LayoutParams. FLAG_FULLSCREEN); // (NEW)

       

        Log. i("openGLActivity", "onCreate()");

            GLSurfaceView view = new GLSurfaceView(this);

             final openGLRender Render = new openGLRender();

            view.setRenderer(Render);

            setContentView(view);

            

            Button b = new Button(this);

            b.setText( "hello world");

            this.addContentView(b, new LayoutParams(LayoutParams.WRAP_CONTENT ,LayoutParams.WRAP_CONTENT));

            

            view.setOnClickListener( new OnClickListener()

            {

                   public void onClick(View v)

                  {

                        Render.onClick(v);

                  }

            });

                  

      

      }

}