为surfaceview-Android添加回调的问题

我在单击按钮期间添加回调时遇到困难：

protected void onCreate(Bundle savedInstanceState) {
......

//get the Image View at the main.xml file
setIv_image((ImageView) findViewById(R.id.gimg1));

//get the Surface View at the main.xml file
setSv((SurfaceView) findViewById(R.id.testin));

//Get a surface
setsHolder(getSv().getHolder());

// SET CALLBACK
setCalling((Callback) this);
.......
takeImage.setOnClickListener(new OnClickListener() 
        {
            @Override 
            public void onClick(View v) { 
                        //add the callback interface methods defined below as the Surface View callbacks
                    getsHolder().addCallback(getCalling());
                        //tells Android that this surface will have its data constantly replaced
                    getsHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
            } 
        });
.....My functions to work for the surfaceview

现在，我只需删除getsHolder.addCallbackgetCalling，它就可以完美地工作了；并将其移动到setOnClickListener外部的上方

我的问题是我希望它在我的按钮被点击时工作，但是如果我在点击事件中有它，它就不能正常工作

想法和建议？

使用以下方法调用getsHolder

    takeImage.setOnClickListener(new OnClickListener() {

        @Override 
        public void onClick(View v) { 
            //add the callback interface methods defined below as the Surface View callbacks
            this.getsHolder().addCallback(getCalling());

            //tells Android that this surface will have its data constantly replaced
            this.getsHolder().setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
        } 
    });