兔子--android.view.windowmanager BadTokenException :unable to add window token null is not for applica

标签：android.view.windowm   token null is not fo   

导致报这个错是在于new AlertDialog.Builder(mcontext)，虽然这里的参数是AlertDialog.Builder(Context context)但我们不能使用getApplicationContext()获得的Context,而必须使用Activity,因为只有一个Activity才能添加一个窗体。 

环境变量传入错误，不能使application的环境，应该是Activity的环境

1. new AlertDialog.Builder(MyActivity.this)  
2.                 .setIcon(android.R.drawable.ic_launch)  
3.                 .setTitle("Warnning")  
4.                 .setMessage("haha")  
5.                 .setPositiveButton("Yes", positiveListener).setNegativeButton(  
6.                         "No", negativeListener).create().show();  

兔子--android.view.windowmanager BadTokenException :unable to add window token null is not for applica

标签：android.view.windowm   token null is not fo   

原文地址：http://blog.csdn.net/u013425527/article/details/46859841