如何在GLSurfaceView上强制调用onDrawFrame()？

public class MyGLSurfaceView extends GLSurfaceView {
    public MyGLSurfaceView(Context context) {
        super(context);
        setEGLContextClientVersion(2);
        setRenderer(new MyRenderer());
    }

    public void forceRedraw() {
        queueEvent(new Runnable() {
            @Override
            public void run() {
                MyRenderer renderer = (MyRenderer) getRenderer();
                if (renderer != null) {
                    renderer.requestRedraw();
                }
            }
        });
        requestRender();
    }
}

public class MyRenderer implements GLSurfaceView.Renderer {
    private boolean mRedrawRequested = false;

    @Override
    public void onSurfaceCreated(GL10 gl, EGLConfig config) {
        // 初始化渲染器
    }

    @Override
    public void onSurfaceChanged(GL10 gl, int width, int height) {
        // 调整视口大小
    }

    @Override
    public void onDrawFrame(GL10 gl) {
        // 绘制场景

        if (mRedrawRequested) {
            // 在这里执行需要在onDrawFrame()中执行的操作
            mRedrawRequested = false;
        }
    }

    public void requestRedraw() {
        mRedrawRequested = true;
    }
}

MyGLSurfaceView myGLSurfaceView = (MyGLSurfaceView) findViewById(R.id.my_gl_surface_view);
myGLSurfaceView.forceRedraw();