Android PopupWindow的showAsDropDown位置失效的問題

突然發現Android PopupWindow的showAsDropDown位置失效，聽說是Android的sdk版本兼容問題，須要本身重寫改方法，安卓的坑真多啊
在網上找了好多方法無論用，最後終於找到一個能夠的：
貼一下解決方法，感謝
重寫showAsDropDown(view)就解決了。

public class SupportPopupWindow extends PopupWindow {

public SupportPopupWindow(View contentView, int width, int height){
    super(contentView,width,height);
}

[@Override](https://my.oschina.net/u/1162528)
public void showAsDropDown(View anchor) {
    if(Build.VERSION.SDK_INT >= 24) {
        Rect rect = new Rect();
        anchor.getGlobalVisibleRect(rect);
        int h = anchor.getResources().getDisplayMetrics().heightPixels - rect.bottom;
        setHeight(h);
    }
    super.showAsDropDown(anchor);
}

[@Override](https://my.oschina.net/u/1162528)
public void showAsDropDown(View anchor, int xoff, int yoff) {
    if(Build.VERSION.SDK_INT >= 24) {
        Rect rect = new Rect();
        anchor.getGlobalVisibleRect(rect);
        int h = anchor.getResources().getDisplayMetrics().heightPixels - rect.bottom;
        setHeight(h);
    }
    super.showAsDropDown(anchor, xoff, yoff);
}

}

做者：alwaysGoalong 來源：CSDN 原文：https://blog.csdn.net/alwaysGoalong/article/details/80455427