android - 弹出窗口中的微调器错误，单击时崩溃

Question

我有一个从 Fragment 调用的 PopupWindow，除了我的微调器之外，一切正常。当我点击微调器时，它崩溃并给出错误:

“android.view.WindowManager$BadTokenException:无法添加窗口—— token android.view.ViewRootImpl$W@421a46d8 无效；您的 Activity 是否正在运行？”

我在 fragment 中调用弹出窗口的代码:

ManagerPopUp mManagerPopUp = new ManagerPopUp(getActivity());
mManagerPopUp.showPopUpAddEvent();

我在 ManagerPopUp 中显示弹出窗口的代码:

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;
    }
}

查看它在我的应用程序中的显示方式:

点击我的微调器(图中的红色标签)时出现的错误:

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)

Answer 1

final PopupWindow popUp = new PopupWindow(mContext);

在那里检查你的上下文。是否为空？

编辑:如果您在对话框中显示微调器，请将此添加到微调器

android:spinnerMode="dialog"

如果您动态创建微调器:

Spinner spinner = new Spinner(context, Spinner.MODE_DIALOG);