7.1版本這個bug被修復了

在7.0中寬和高如果設定得過大，彈出的PopupWindow會覆蓋當前的視窗而覆蓋整個手機螢幕，並不是在anchorView的下方彈出來。

方法一：

public void show(View view)
    {
        if (Build.VERSION.SDK_INT < 24)
        {
            popupWindow.showAsDropDown(view, 0, 0);
        } else
        {
            popupWindow.showAtLocation(view, Gravity.NO_GRAVITY, 0, view.getHeight() + getStatusBarHeight());
        }
    }

/**
     * 獲取狀態列高度
     * @return
     */
    private int getStatusBarHeight() 
    {
        try
        {
            Resources resource = AnyfishApp.getApplication().getResources();
            int resourceId = resource.getIdentifier("status_bar_height", "dimen", "Android");
            if (resourceId != 0)
            {
                return resource.getDimensionPixelSize(resourceId);
            }
        } catch (Exception e)
        {
        }
        return 0;
    }
 

方法二：重寫popupwindow方法

@Override
    public void showAsDropDown(View anchorView, int xoff, int yoff) {
        if (Build.VERSION.SDK_INT == Build.VERSION_CODES.N) {
            int[] a = new int[2];
            anchorView.getLocationInWindow(a);
            showAtLocation(anchorView, Gravity.NO_GRAVITY, xoff, a[1] + anchorView.getHeight() + yoff);
        } else {
            super.showAsDropDown(anchorView, xoff, yoff);
        }
    }

    @Override
    public void showAsDropDown(View anchorView) {
        if (Build.VERSION.SDK_INT == Build.VERSION_CODES.N) {
            int[] a = new int[2];
            anchorView.getLocationInWindow(a);
            showAtLocation(anchorView, Gravity.NO_GRAVITY, 0, a[1] + anchorView.getHeight() + 0);
        } else {
            super.showAsDropDown(anchorView);
        }
    }