PopupWindow有一个显示在在某个上方的方法,但是没有定义一个在控件下方的方法,不知为何.这里提供一个小思路:
public class PopupOrderPriceDetail extends PopupWindow {
private int popupWidth;
private int popupHeight;
public PopupOrderPriceDetail(Activity context, BusTicket busTicket, int size, boolean isInsurance) {
super(context);
View view = LayoutInflater.from(context).inflate(R.layout.order_price_detail, null);
// 设置可以获得焦点
setFocusable(true);
// 设置弹窗内可点击
setTouchable(true);
// 设置弹窗外可点击
setOutsideTouchable(true);
setWidth(ViewGroup.LayoutParams.MATCH_PARENT);
setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
setAnimationStyle(R.style.popup_animation);
setContentView(view);
//获取自身的长宽高
view.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);
popupHeight = view.getMeasuredHeight();
popupWidth = view.getMeasuredWidth();
}
public void showUp(View v) {
//获取需要在其上方显示的控件的位置信息
int[] location = new int[2];
v.getLocationOnScreen(location);
//在控件上方显示
showAtLocation(v, Gravity.NO_GRAVITY, (location[0] + v.getWidth() / 2) - popupWidth / 2, location[1] - popupHeight);
}
}