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弹出窗口中的Spinner错误，点击后崩溃

androidandroid-fragmentsandroid-spinnerandroid-adapterandroid-popupwindow
6
我有一个弹出窗口（PopupWindow），从片段（Fragment）中调用它的一切都正常，除了我的下拉列表（Spinner）。当我点击下拉列表时，它会崩溃并显示以下错误信息：
"android.view.WindowManager$BadTokenException: Unable to add window -- token android.view.ViewRootImpl$W@421a46d8 is not valid; is your activity running?" 我的片段中调用弹出窗口的代码： 
ManagerPopUp mManagerPopUp = new ManagerPopUp(getActivity());
mManagerPopUp.showPopUpAddEvent();

我在ManagerPopUp中的代码以显示弹出窗口：

public class ManagerPopUp {

    private static final String TAG = "PopUpManager";
    private Context mContext;

    public ManagerPopUp(Context mContext){
        this.mContext = mContext;
    }

    public PopupWindow showPopUpAddEvent(){
            final PopupWindow popUp = new PopupWindow(mContext);

            LayoutInflater inflater = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            View layout = inflater.inflate(R.layout.popup_add_event, null);

            //Code for popup event
            TextView txtRoom, txtTitle, txtEnd, txtStart;
            ToggleButton tgRepeateWeekly, tgAddReminder;
            Button btConfirme, btCancel;

            txtTitle = (TextView)layout.findViewById(R.id.txt_lesson_title_event);
            txtRoom = (TextView)layout.findViewById(R.id.txt_lesson_room_event);
            txtStart = (TextView)layout.findViewById(R.id.txt_lesson_start_hour_event);
            txtEnd = (TextView)layout.findViewById(R.id.txt_lesson_end_hour_event);
            final Spinner spSelectCalendar = (Spinner)layout.findViewById(R.id.sp_select_calendar);
            Spinner spSelectReminder = (Spinner)layout.findViewById(R.id.sp_select_reminder_time);
            tgRepeateWeekly = (ToggleButton)layout.findViewById(R.id.tg_repeate_weekly); 
            tgAddReminder = (ToggleButton)layout.findViewById(R.id.tg_add_reminder);
            btConfirme = (Button)layout.findViewById(R.id.bt_confirme);
            btCancel = (Button)layout.findViewById(R.id.bt_cancel);

            /**************************************************************************************************************
            *
            *   Initializations
            *
            ***************************************************************************************************************/


            HandlerCalendarProvider mCalendarProvider = new HandlerCalendarProvider(mContext);
            final ArrayList<ClassCalendar> mCalendarsList = mCalendarProvider.getAllCalendars();
            AdapterCalendarSpinner mAdapterCalendarSpinner = 
                    new AdapterCalendarSpinner(mContext, mCalendarsList);

            spSelectCalendar.setAdapter(mAdapterCalendarSpinner);


            popUp.setContentView(layout);
            popUp.setWidth(LinearLayout.LayoutParams.MATCH_PARENT);
            popUp.setHeight(LinearLayout.LayoutParams.MATCH_PARENT);
            popUp.setFocusable(true);

            // Some offset to align the popup a bit to the left, and a bit down, relative to button's position.
            popUp.setBackgroundDrawable(new BitmapDrawable(mContext.getResources(), BitmapFactory.decodeResource(mContext.getResources(), R.color.color_popup_background))); //PopUpBackground
            popUp.showAtLocation(layout, Gravity.NO_GRAVITY, 0 , 0);
            return popUp;
        }
}

我的Spinner适配器：

public class AdapterCalendarSpinner extends BaseAdapter implements SpinnerAdapter {

    private Context mContext;
    private ArrayList<ClassCalendar> mCalendarsList;

    public AdapterCalendarSpinner(Context mContext, ArrayList<ClassCalendar> mCalendarsList) {

        this.mContext = mContext;
        this.mCalendarsList = mCalendarsList;
    }

    @Override
    public int getCount() {
        return mCalendarsList.size();
    }

    @Override
    public ClassCalendar getItem(int position) {
        return mCalendarsList.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        ClassCalendar o = mCalendarsList.get(position);

        LayoutInflater vi = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = vi.inflate(R.layout.sp_item_calendar_selected, null);

        LinearLayout llCalColor = (LinearLayout)convertView.findViewById(R.id.ll_calendar_selected_color);
        TextView txtCalName = (TextView)convertView.findViewById(R.id.txt_calendar_selected_name);
        TextView txtCalEmail = (TextView)convertView.findViewById(R.id.txt_calendar_selected_email);

        llCalColor.setBackgroundColor(o.getCalColor());
        txtCalName.setText(o.getCalName());
        txtCalEmail.setText(o.getCalEmail());
        txtCalName.setTextColor(Color.WHITE);
        txtCalEmail.setTextColor(Color.WHITE);

        return convertView;
    }

    @Override
    public View getDropDownView(int position, View convertView, ViewGroup parent) {

        ClassCalendar o = mCalendarsList.get(position);

        LayoutInflater vi = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = vi.inflate(R.layout.sp_item_calendar, null);

        //convertView = LayoutInflater.from(mContext).inflate(R.layout.sp_item_calendar, null);

        LinearLayout llCalColor = (LinearLayout)convertView.findViewById(R.id.ll_calendar_color);
        TextView txtCalName = (TextView)convertView.findViewById(R.id.txt_calendar_name);
        TextView txtCalEmail = (TextView)convertView.findViewById(R.id.txt_calendar_email);

        llCalColor.setBackgroundColor(o.getCalColor());
        txtCalName.setText(o.getCalName());
        txtCalEmail.setText(o.getCalEmail());

        return convertView;
    }
}

在我的应用程序中，视图显示如下:

enter image description here

当我点击我的 Spinner (图片中带有红色标签) 时，出现的错误如下:

09-19 11:35:23.312: E/AndroidRuntime(2933): FATAL EXCEPTION: main

    09-19 11:35:23.312: E/AndroidRuntime(2933): Process: com.loopbug.ritmossegredosgym, PID: 2933
    09-19 11:35:23.312: E/AndroidRuntime(2933): android.view.WindowManager$BadTokenException: Unable to add window -- token android.view.ViewRootImpl$W@421a46d8 is not valid; is your activity running?
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at android.view.ViewRootImpl.setView(ViewRootImpl.java:532)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:259)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at android.widget.PopupWindow.invokePopup(PopupWindow.java:1019)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at android.widget.PopupWindow.showAsDropDown(PopupWindow.java:925)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at android.widget.ListPopupWindow.show(ListPopupWindow.java:625)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at android.widget.Spinner$DropdownPopup.show(Spinner.java:1112)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at android.widget.Spinner.performClick(Spinner.java:658)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at android.view.View$PerformClick.run(View.java:18446)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at android.os.Handler.handleCallback(Handler.java:733)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at android.os.Handler.dispatchMessage(Handler.java:95)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at android.os.Looper.loop(Looper.java:136)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at android.app.ActivityThread.main(ActivityThread.java:5137)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at java.lang.reflect.Method.invokeNative(Native Method)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at java.lang.reflect.Method.invoke(Method.java:515)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:611)
    09-19 11:35:23.312: E/AndroidRuntime(2933):     at dalvik.system.NativeStart.main(Native Method)
可能你的 mContext=null，请检查一下... - M D
我的上下文不是空的，我不知道是否获得了正确的上下文，但不是空的。弹出窗口打开并使用上下文。如果我们单击其中的Spinner，则会导致应用程序崩溃。 - jobernas
非常好的解释。我遇到了同样的问题。 - tony gil
2个回答
13
final PopupWindow popUp = new PopupWindow(mContext);

检查一下你的上下文环境，它是否为空？

编辑：如果你在对话框中显示旋转器，请将此代码添加到你的旋转器中。

android:spinnerMode="dialog"

如果您动态地创建旋转器：

Spinner spinner = new Spinner(context, Spinner.MODE_DIALOG);
我的上下文不是空的，我不知道我是否获取了正确的上下文，但它不是空的。弹出窗口打开并使用上下文。如果我们点击它，崩溃应用程序的是弹出窗口中的 Spinner。 - jobernas
它起作用了，但不是我想要的方式。我希望它看起来像下拉模式。但对话框模式正在工作。我认为下拉模式在PopupWindow中不起作用，会导致应用程序崩溃。感谢您的帮助。 - jobernas
非常感谢，你救了我的一天！ - Vitalii Vasylenko
@Bernas 在弹出窗口中对我不起作用。你能帮忙解决一下吗？我正在运行它在 Android 设备 API 25 上。 - Chirag Prajapati
3
在PopupWindow构造函数中，应传递Activity.this而不是mContext。
例如，如果是Activity：
PopupWindow popUp = new PopupWindow(ActivityName.this);

如果 Fragment：

PopupWindow popUp = new PopupWindow(getActivity());

修改后：

现在将构造函数改为 (Activity mcontext)

Activity mContext;

public ManagerPopUp(Activity mContext){
        this.mContext = mContext;
}
我已经在使用“getActivity()”，我将“getActivity()”传递给变量mContext。请看我的第一个代码块，当我在Fragment中创建我的ManagerPopup对象时。 - jobernas
你在传递 getActivity() 时，这里如何使用该引用？我没听懂你的意思。 - Pratik Butani
在我的ManagerPopup对象中，当我在片段中创建它时，通过构造函数将getActivity()传递给我的"mContext"变量。 ManagerPopUp mManagerPopUp = new ManagerPopUp(getActivity()); - jobernas
将上下文更改为Activity，但在模式下拉菜单中仍然崩溃。我认为这种模式在PopupWindow中不起作用。我将使用对话框模式。无论如何，谢谢。 - jobernas
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