Toastmessageshow库[android.view.WindowManager $ BadTokenException：无法添加窗口-令牌null无效；您的活动正在进行吗？]

Question

我正在使用b4a [Basic4Android]，并且已经在论坛上进行搜索，所有答案都与Android Studio有关。

我的代码在android <4 [Emulator]上运行良好，但是无论何时在android上运行，我都使用toastmessageshowlibrary v2.0。

Ignoring event as service was destroyed: autodiscoverudpsocket_packetarrived
android.view.WindowManager$BadTokenException: Unable to add window -- token 
    null is not valid; is your activity running?
    at android.view.ViewRootImpl.setView(ViewRootImpl.java:790)
    at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:374)
    at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:93)
    at anywheresoftware.it.giuseppe.salvi.notification.core.ToastShowWrapper$ToastManager.display(ToastShowWrapper.java:1515)
    at anywheresoftware.it.giuseppe.salvi.notification.core.ToastShowWrapper$ToastManager.handleMessage(ToastShowWrapper.java:1494)
    at android.os.Handler.dispatchMessage(Handler.java:106)
    at android.os.Looper.loop(Looper.java:164)
    at android.app.ActivityThread.main(ActivityThread.java:6524)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:888)

我在子全局变量下声明了mymsgbox。

我的B4a代码是：

Sub Activity_Create(FirstTime As Boolean)
    Try
        Activity.LoadLayout("splash")
        mymsgbox.Initialize("mymsgbox")
        btnsplashlogin.Width = 65%X
        StartService(Starter)

         token = "KPOPULARisaccessingitsserverfromapp" 
        data = bconv.StringToBytes(token, "UTF8")
        data = md.GetMessageDigest(data, "SHA-1")
        token= (bconv.HexFromBytes(data))
        token = token&token

        data = bconv.StringToBytes(token, "UTF8")
        data = md.GetMessageDigest(data, "SHA-1")
        token = bconv.HexFromBytes(data)

        Sleep(10)
        btnsplashlogin.Top = 50%Y
        btnsplashregister.Width = 65%X
        btnsplashregister.Top = 59%Y
        lblcybtech.Left= 0%x
        lblcybtech.Top = 90%y
        lblcybtech.Width = 100%x
        DisableStrictMode
        registerlogindesign

        StartService(Starter)
        rpermission.CheckAndRequest(rpermission.PERMISSION_CALL_PHONE)
        rpermission.CheckAndRequest(rpermission.PERMISSION_READ_EXTERNAL_STORAGE)
        rpermission.CheckAndRequest(rpermission.PERMISSION_WRITE_EXTERNAL_STORAGE)
            rpermission.CheckAndRequest(rpermission.PERMISSION_READ_PHONE_STATE)


        homelink= enc.DecodeStoS("aHR0cDovLzE3Mi4xNy4xMDAuMi9rcC8=", "UTF8")
    homelink= enc.DecodeStoS("aHR0cDovL2t3YXN1cG9wdWxhci4wMDB3ZWJob3N0YXBwLmNvbS9rcC8=F", "UTF8")

        wait for activity_permissionresult (Permission As String, Result As Boolean)
        If Result = True Then

            If File.Exists(File.DirInternal,"reg") = True Then
                Activity.Finish
                StartActivity(menu)
            Else
                btnsplashlogin.SetVisibleAnimated(500,True)
                Sleep(500)
                btnsplashregister.SetVisibleAnimated(500,True)
                Sleep(500)
                lblcybtech.SetVisibleAnimated(300,True)

                If File.Exists(File.DirInternal,"reg") = False Then
                    mymsgbox.Initialize("mymsgbox")
                    mymsgboxtext = "Welcome, Please register or login.."
                    mymsgboxshow


                End  If
            End  If

            If Result = False Then
                Msgbox("You need to allow all permissions, to continue..",title)
                ExitApplication
            End If
        End If
    Catch
        mymsgboxtext = "An error has occured."
        mymsgboxshow2
    End Try
End Sub    

这是导致问题的原因。

mymsgboxtext = "Welcome, Please register or login.."
mymsgboxshow