AlertDialog显示错误 Unable to add window token null is not for an application
2011-12-22 16:30
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在listView的onItemClick函数中显示一个AlertDialog,出现如下错误
08-07 21:26:43.506: ERROR/AndroidRuntime(9390): android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
后google解决,代码中显示语句如下
AlertDialog imageDialog = new AlertDialog.Builder(context).setTitle("状态操作").setItems(items, listener).create();
imageDialog.show();
其中context为在OnCreate中
context = getApplicationContext();
得到,而AlertDialog创建语句
public AlertDialog.Builder (Context context)
中,不能使用getApplicationContext()得到的context,而必须使用Activity,所有语句修改为
AlertDialog imageDialog = new AlertDialog.Builder(Activity.this).setTitle("状态操作").setItems(items, listener).create();
imageDialog.show();
其中的Activity为当前Activity的名称
参考:
/article/1853430.html
08-07 21:26:43.506: ERROR/AndroidRuntime(9390): android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
08-07 21:26:43.506: ERROR/AndroidRuntime(9390): android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
后google解决,代码中显示语句如下
AlertDialog imageDialog = new AlertDialog.Builder(context).setTitle("状态操作").setItems(items, listener).create();
imageDialog.show();
AlertDialog imageDialog = new AlertDialog.Builder(context).setTitle("状态操作").setItems(items, listener).create(); imageDialog.show();
其中context为在OnCreate中
context = getApplicationContext();
context = getApplicationContext();
得到,而AlertDialog创建语句
public AlertDialog.Builder (Context context)
public AlertDialog.Builder (Context context)
中,不能使用getApplicationContext()得到的context,而必须使用Activity,所有语句修改为
AlertDialog imageDialog = new AlertDialog.Builder(Activity.this).setTitle("状态操作").setItems(items, listener).create();
imageDialog.show();
AlertDialog imageDialog = new AlertDialog.Builder(Activity.this).setTitle("状态操作").setItems(items, listener).create(); imageDialog.show();
其中的Activity为当前Activity的名称
参考:
/article/1853430.html
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