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我已閱讀有關AlertDialog此異常的每篇文章，並花了2天時間追蹤問題，但無法解決。任何人都可以看到我想念的東西嗎？Android：WindowManager BadTokenException
Popup從Fragment中顯示並具有Parent-Activity的上下文。
IBinder token = rootView.getWindowToken(); //not null
mWindow.showAtLocation(rootView, Gravity.NO_GRAVITY, xPos, yPos);
隊伍現狀的跟蹤：
11-24 10:12:18.937: W/System.err(13061): android.view.WindowManager$BadTokenException: Unable to add window -- token [email protected] is not valid; is your activity
running?
11-24 10:12:18.937: W/System.err(13061): at android.view.ViewRootImpl.setView(ViewRootImpl.java:563)
11-24 10:12:18.937: W/System.err(13061): at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:269)
11-24 10:12:18.937: W/System.err(13061): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
11-24 10:12:18.947: W/System.err(13061): at android.widget.PopupWindow.invokePopup(PopupWindow.java:1041)
11-24 10:12:18.947: W/System.err(13061): at android.widget.PopupWindow.showAtLocation(PopupWindow.java:877)
11-24 10:12:18.947: W/System.err(13061): at android.widget.PopupWindow.showAtLocation(PopupWindow.java:841)
11-24 10:12:18.947: W/System.err(13061): at com.test.hpi.DisplayPopup.displayPopup(DisplayPopup.java:181)
11-24 10:12:18.947: W/System.err(13061): at com.test.hpi.AddModifyAllergypopup.showdropdownlist(AddModifyAllergypopup.java:1038)
11-24 10:12:18.957: W/System.err(13061): at com.test.hpi.AddModifyAllergypopup.access$35(AddModifyAllergypopup.java:999)
11-24 10:12:18.957: W/System.err(13061): at com.test.hpi.AddModifyAllergypopup$9.onClick(AddModifyAllergypopup.java:348)
11-24 10:12:18.957: W/System.err(13061): at android.view.View.performClick(View.java:4421)
11-24 10:12:18.957: W/System.err(13061): at android.view.View$PerformClick.run(View.java:17903)
11-24 10:12:18.957: W/System.err(13061): at android.os.Handler.handleCallback(Handler.java:730)
11-24 10:12:18.967: W/System.err(13061): at android.os.Handler.dispatchMessage(Handler.java:92)
11-24 10:12:18.967: W/System.err(13061): at android.os.Looper.loop(Looper.java:213)
11-24 10:12:18.967: W/System.err(13061): at android.app.ActivityThread.main(ActivityThread.java:5225)
11-24 10:12:18.967: W/System.err(13061): at java.lang.reflect.Method.invokeNative(Native Method)
11-24 10:12:18.967: W/System.err(13061): at java.lang.reflect.Method.invoke(Method.java:525)
11-24 10:12:18.967: W/System.err(13061): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:741)
11-24 10:12:18.977: W/System.err(13061): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
11-24 10:12:18.977: W/System.err(13061): at dalvik.system.NativeStart.main(Native Method)
你能發佈更多的代碼嗎？像什麼是mWindow – nandeesh 2014-11-24 06:40:10
我解決了它，感謝評論，問題是在rootView – 2014-11-24 06:55:26