本文实例讲述了Android编程实现GridView控件点击图片变暗效果的方法。分享给大家供大家参考，具体如下：
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
grid = (GridView) findViewById(R.id.grid);
grid.setAdapter(new GridAdapter());
grid.setOnItemCli
