android中popupwindow怎么把一个页面做个弹窗

Android PopupWindow怎么合理控制弹出位置 123456789101112131415161718192021222324252627282930private void showPopupWindow(View parent) { if (popupWindow == null) { LayoutInflater layoutInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); view = layoutInflater.inflate(R.layout.group_list, null); lv_group = (ListView) view.findViewById(R.id.lvGroup); Collections.reverse(groups); GroupAdapter groupAdapter = new GroupAdapter(this, groups); lv_group.setAdapter(groupAdapter); popupWindow = new PopupWindow(view, 200, 220); } popupWindow.setFocusable(true); popupWindow.setOutsideTouchable(true); //设置点击屏幕其它地方弹出框消失 popupWindow.setBackgroundDrawable(new BitmapDrawable()); WindowManager windowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE); int xPos = -popupWindow.getWidth() / 2 + getCustomTitle().getCenter().getWidth() / 2; popupWindow.showAsDropDown(parent, xPos, 4); lv_group.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView adapterView, View view, int position, long id) { loadNew(((StringItem)(groups.get(position))).getId()); if (popupWindow != null) popupWindow.dismiss(); } }); }只需要设置proupwindows的setOutsideTouchable属性即可。 以下为示例代码： window.showAtLocation(parent, Gravity.RIGHT Gravity.BOTTOM, 10,10);//显示位置 第一个参数指定PopupWindow的锚点view，即依附在哪个view上。 第二个参数指定起始点 第三个参数设置以起始点的右下角为原点，向左、上各偏移的像素。 自己看下API