03_Android ListPopupWindow

ListPopupWindow（v7包下） 类似于内置了一个 ListView 的 PopupWindow，对子菜单的操作更加灵活。

示意图.png

代码实现过程

private void showListPopupWindow(View view) {

        final String items [] = {"0","1","2","3","4","5","6"};
        ListPopupWindow listPopupWindow = new ListPopupWindow(this);

        // 设置适配器
        listPopupWindow.setAdapter(new ArrayAdapter(this,
                android.R.layout.simple_list_item_1, items));

        // 设置 item 的监听事件
        listPopupWindow.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView adapterView, View view, int i, long l) {
                Toast.makeText(MainActivity.this, items[i], Toast.LENGTH_SHORT).show();
            }
        });

        // 对话框宽高
        listPopupWindow.setWidth(500);  
        listPopupWindow.setHeight(600);  
        // 设置 listPopupWindow 的锚点，即弹出的对话框的位置相对于当前 view 的位置
        listPopupWindow.setAnchorView(view);

        // 距锚 view 的距离
        listPopupWindow.setHorizontalOffset(40);
        listPopupWindow.setVerticalOffset(100);
        // 设置当用户触碰到对话框以外的区域，对话框是否消失
        listPopupWindow.setModal(false);
        listPopupWindow.show();

    }