应用程序在弹出窗口中打开微调器崩溃

时间:2015-04-10 06:37:17

标签: java android popup android-spinner

我的旋转器遇到了很大的问题。我的弹出窗口显示没有任何问题,它显示我的旋转器处于关闭位置。 enter image description here

但是当我打开它时,我的应用程序崩溃并显示以下错误信息...

04-10 08:34:33.773    1690-1690/com.example.paul_io E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.paul_io, PID: 1690
android.view.WindowManager$BadTokenException: Unable to add window -- token android.view.ViewRootImpl$W@52f02170 is not valid; is your activity running?
        at android.view.ViewRootImpl.setView(ViewRootImpl.java:532)
        at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:259)
        at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
        at android.widget.PopupWindow.invokePopup(PopupWindow.java:1019)
        at android.widget.PopupWindow.showAsDropDown(PopupWindow.java:925)
        at android.widget.ListPopupWindow.show(ListPopupWindow.java:625)
        at android.widget.Spinner$DropdownPopup.show(Spinner.java:1110)
        at android.widget.Spinner.performClick(Spinner.java:658)
        at android.view.View$PerformClick.run(View.java:18422)
        at android.os.Handler.handleCallback(Handler.java:733)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:136)
        at android.app.ActivityThread.main(ActivityThread.java:5001)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:515)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
        at dalvik.system.NativeStart.main(Native Method)

我做错了什么?

重要代码:

  Variables.mainActivity = MainActivity.this;
.
.
.  ​
  Activity mContext = Variables.mainActivity;
  Spinner ecb = new Spinner(mContext);

1 个答案:

答案 0 :(得分:1)

问题在于您的上下文已通过(BadTokenException)。

我认为您使用的是getApplicationContext()。而是使用YourActivityName.this来传递context