WindowManager$BadTokenException:Unable to add window--token null is not for an application
来源：互联网 发布：c语言 libevent 编辑：程序博客网 时间：2024/04/30 04:15
在创建一个AlertDialog的时候，遇见一个异常:WindowManager$BadTokenException:Unable to add window--token null is not for an application
导致报这个错的原因在于new AlertDialog.Builder(mcontext),虽然AlertDialog.Builder aBuilder= new Builder(Context context)的参数是 context,但是不能通过getApplicationContext()获取context,必须使用Activity，因为只有一个Activity才能添加一个窗体。即new AlertDialog.Builder(Activity.this)
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- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
- WindowManager$BadTokenException: Unable to add window -- token null is not for an application
- 【转】WindowManager$BadTokenException: Unable to add window -- token null is not for an application
- WindowManager$BadTokenException:Unable to add window--token null is not for an application
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- 关于android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an app
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window — token null is not for an applic
- android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli
- android.view.WindowManager$BadTokenException: Unable to add window — token null is not for an appli
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