如何用Switch控件控制Imageview改变图片达到灯泡开关的效果

Question

    light1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            if (isChecked){
                imageView1.setBackgroundResource(R.drawable.lightopen);
            }else {
                imageView1.setBackgroundResource(R.drawable.lightclose);
            }
        }
    });

我这样写了但是程序运行时就报错了

Answer 1

报什么错误，发出来看看