Activity packagename has leaked window android.widget.PopupWindow$PopupDecorView{4f92660 V.E...... .......D 0,0-455,600} that was originally added here

原因是在销毁Activity时，Activity中的popupwindow还处于显示状态。

解决方法是重写Activity的onDestroy()方法，在Activity销毁前调用popupWindow的dismiss()方法关闭popupwindow。