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package cc.wy;import android.app.Activity;import android.content.Context;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.Button;import android.widget.ListPopupWindow;import android.widget.Toast;import android.widget.AdapterView.OnItemClickListener;/** * Demo描述: * ListPopupWindow使用完整示例(一)——系统自带ListPopupWindow *  * 参考资料: * 1 http://blog.csdn.net/rambomatrix/article/details/23525379 * 2 http://blog.csdn.net/jsnrwzm/article/details/14408835 *   Thank you very much *    * 注意事项: * 1 ListPopupWindow显示item的布局xml文件的写法 * 2 注意给ListPopupWindow设置anchor.即设置它依附于哪个控件显示 *    */public class MainActivity extends Activity {	private Context mContext;	private Button mButton;	private ListPopupWindow mListPopupWindow;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        init();    }        private void init(){    	mContext=this;    	final String itmes[]={"第一个子项","第二个子项","第三个子项"};    	mListPopupWindow=new ListPopupWindow(mContext);    	mListPopupWindow.setAdapter(new ArrayAdapter
   
    (mContext,R.layout.item, itmes));    	mListPopupWindow.setOnItemClickListener(new OnItemClickListener() {			@Override			public void onItemClick(AdapterView
     arg0, View arg1, int position,long arg3) {				Toast.makeText(mContext, "点击了"+itmes[position], Toast.LENGTH_SHORT).show();			}		});    	mButton=(Button) findViewById(R.id.button);    	mButton.setOnClickListener(new OnClickListener() {			@Override			public void onClick(View v) {				//指定anchor				mListPopupWindow.setAnchorView(v);				mListPopupWindow.show();			}		});    }}
   

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