MainActivity.java

public class MainActivity extends Activity implements OnClickListener{

	private PopMenu popMenu;

	private Context context;

	private Button button;

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		requestWindowFeature(Window.FEATURE_NO_TITLE);

		setContentView(R.layout.activity_main);

		context = MainActivity.this;

		button=(Button)findViewById(R.id.bt);

		button.setOnClickListener(this);

		popMenu = new PopMenu(context);

		popMenu.setOnItemClickListener( new OnItemClickListener() {//每个条目的点击事件

			@Override

			public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

				 //每个条目的点击响应事件

				popMenu.dismiss();

			}

		}  ); 

	}

	// 弹出菜单监听器

	@Override

	public void onClick(View v) {

		popMenu.showAsDropDown(v);

	}

}

PopMenu.java

public class PopMenu {

	private ArrayList<String> itemListStr ;

	private ArrayList<Integer> itemListInt;

	private Context context;

	private PopupWindow popupWindow;

	private ListView listView;

	public PopMenu(Context context) {

		this.context = context;

		itemListStr = new ArrayList<String>();

		 itemListInt=new ArrayList<Integer>();

		String[] str=new String[]{"你好", "我好", "大家好", "哈哈"};

		int[] i=new int[]{R.drawable.picture0,R.drawable.picture1,R.drawable.picture2,R.drawable.picture3};

		for(String s:str){

			itemListStr.add(s);

		}

		for(int img:i){

			Integer listImgInteger=Integer.valueOf(img);//int-->Integer

			itemListInt.add(listImgInteger);

		}

		Log.i("Tag","itemListStr______"+itemListStr);

		Log.i("Tag","itemListInt________"+itemListInt);

		View view = LayoutInflater.from(context).inflate(R.layout.poplist, null);//PopupWindow里面的view

		listView = (ListView) view.findViewById(R.id.menu_listview);

		listView.setAdapter(new PopMenuAdapter(context,itemListStr,itemListInt));

		listView.setFocusableInTouchMode(true);

		listView.setFocusable(true);

		popupWindow = new PopupWindow(view, 300, LayoutParams.WRAP_CONTENT);

		popupWindow.setBackgroundDrawable(new BitmapDrawable()); // 这个是为了点击“返回Back”也能使其消失，并且并不会影响你的背景（很神奇的）,

	}

	// 设置每个条目击监听事件，前面会调用这个方法

	public void setOnItemClickListener(OnItemClickListener listener) {

		listView.setOnItemClickListener(listener);

	}

	// 下拉式 弹出 pop菜单 parent 右下角

	public void showAsDropDown(View parent) {

		popupWindow.showAsDropDown(parent,-150,0);//showAsDropDown(View anchor, int xoff, int yoff)弹出对话框，位置在紧挨着view组件，x y 代表着偏移量

		popupWindow.setFocusable(true);//必须要获得焦点哦，不然里面的控件啥的点击无效的哦

		popupWindow.setOutsideTouchable(true);// 设置允许在外点击消失

		popupWindow.update();	// 刷新状态

	}

	// 隐藏菜单

	public void dismiss() {

		popupWindow.dismiss();

	}

}

PopMenuAdapter.java

public class PopMenuAdapter extends BaseAdapter {

	ArrayList<String> itemListS;

	ArrayList<Integer> itemListI;

	Context mcon;

	public PopMenuAdapter(Context mcon,ArrayList<String> itemListStr,ArrayList<Integer> itemListImg){

		this.mcon=mcon;

		this.itemListS=itemListStr;

		this.itemListI=itemListImg;

	}

	@Override

	public int getCount() {

		return itemListS.size();

	}

	@Override

	public Object getItem(int position) {

		return itemListS.get(position);

	}

	@Override

	public long getItemId(int position) {

		return position;

	}

	@Override

	public View getView(int position, View convertView, ViewGroup parent) {

		ViewHolder holder = null;

		if (convertView == null) {

			convertView = LayoutInflater.from(mcon).inflate(R.layout.showpoplist, null);

			holder = new ViewHolder();

			holder.imageView = (ImageView) convertView.findViewById(R.id.img);

			holder.groupItem = (TextView) convertView.findViewById(R.id.textview);

			convertView.setTag(holder);

		} else {

			holder = (ViewHolder) convertView.getTag();

		}

		holder.imageView.setBackgroundResource(itemListI.get(position).intValue());//Integer-->int

		holder.groupItem.setText(itemListS.get(position));

		Log.i("Tag","itemListS.get(position)~~~~~~"+itemListS.get(position));

		Log.i("Tag","itemListI.get(position).intValue()~~~~~"+itemListI.get(position).intValue());

		return convertView;

	}

	private final class ViewHolder {

		ImageView imageView;

		TextView groupItem;

	}

}

两个布局文件，一个是PopMenu的填充的view,里面就是ListView;另一个布局文件是ListView每个条目的布局。

poplist.xml

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical"

    android:paddingLeft="20dip"

    android:gravity="right"

    android:id="@+id/hotalk_menu_view_layout" >

    <!-- 显示的listview -->

        <ListView android:id="@+id/menu_listview"

            android:layout_width="fill_parent"

            android:layout_height="wrap_content"

            android:focusable="true"

            android:longClickable="true"

            android:scrollbarSize="0sp"

            android:scrollbarStyle="insideOverlay"

            android:background="@drawable/menubg"

            android:divider="@drawable/group_divider"

            android:dividerHeight="1px"

            android:cacheColorHint="#00000000">

    </ListView>

</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

   >

    <!-- 显示内容 ，每个条目-->

	<ImageView

	    android:id="@+id/img"

	    android:layout_width="60dp"

        android:layout_height="40dp"

        android:layout_alignParentLeft="true"

    />

    <TextView

        android:id="@+id/textview"

        android:layout_width="200dp"

        android:layout_height="wrap_content"

        android:gravity="center_vertical"

       	android:layout_toRightOf="@id/img"

       	android:layout_alignBottom="@id/img"

        android:textSize="25sp"

        android:textColor="#FF33CC" />

</RelativeLayout>