token null is not valid; is your activity running?异常解决

 

popuwindows使用时出现异常：

android.view.WindowManager$BadTokenException: Unable to add window -- token null is not valid; is your activity running?

解决方法： 
应把pop.showAtLocation(parent, Gravity.TOP,0, 0)这一句移出oncreate方法，在控件渲染完毕后再使用

参考：http://multiarrow.iteye.com/blog/1158492

 

AlertDialog也会有类似问题 参见：

http://pangaoyuan.iteye.com/blog/1086374