android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an appli

Error:

android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application

此情况出现在android不同版本上。

描述:

项目开始在4.0.1版本上运行没问题,后来在2.3.4版本上测试报出这个异常。异常是由点击spinner弹出框时抛出的。

由于我的spinner是通过

LayoutInflater inflater = (LayoutInflater)getApplication().getSystemService(LAYOUT_INFLATER_SERVICE); 
View layout = inflater.inflate(R.layout.custom_layout, (ViewGroup)findViewById(R.id.custom_layout_root)); 
spinner
= (Spinner)layout.findViewById(R.id.custom_layout_spinner); 获取的。

然后在2.3.4版本上运行时抛出以上异常。

解决方法:

LayoutInflater inflater =  
 
(LayoutInflater) getApplication().getSystemService(LAYOUT_INFLATER_SERVICE); 


 just replace that with the version below, since you're launching the AlertDialog from an Activity

 

LayoutInflater inflater = 
 
(LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);

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