Android Question Back button select case statement

anaylor01 · May 15, 2016

I want to create a select case statement for the back button. I guess my main problem is how to dectect which layout is loaded. So something like this.

Select case Backbutton
case Layout("Main") loaded
Activity.removelayout("Main")
Acitivty.Loadlayout("test")
case layout("Two")loaded
Activity.removelayout("Two")
Acitivty.Loadlayout("THree")

anaylor01 · May 25, 2016

Sorry for not explaining good enough. I am testing the back button right now. It runs through all the code correctly but it exits the app and in the log it says this "** Activity (main) Pause, UserClosed = true **". This is with the emulator and using the ESC key for the back button. I tested on a real device and does the same thing.

LucaMs · May 25, 2016

anaylor01 said:
Sorry for not explaining good enough. I am testing the back button right now. It runs through all the code correctly but it exits the app and in the log it says this "** Activity (main) Pause, UserClosed = true **". This is with the emulator and using the ESC key for the back button. I tested on a real device and does the same thing.

Sorry but this also is not enough to understand.

Have you set a breakpoint (I would set it on
If KeyCode = KeyCodes.KEYCODE_BACK Then
)?

Then press F8

anaylor01 · May 25, 2016

I'll make it even simpler. What does this mean "Activity (main) Pause, UserClosed = true *"? What would cause that?

LucaMs · May 25, 2016

anaylor01 said:
I'll make it even simpler. What does this mean "Activity (main) Pause, UserClosed = true *"? What would cause that?

Back button pressing.

Forse se scrivessimo in italiano, ci capiremmo meglio

DonManfred · May 25, 2016

anaylor01 said:
What would cause that?

User pressed HOME Button or Back Button for example.

LucaMs · May 25, 2016

DonManfred said:
User pressed HOME Button or Back Button for example.

Pressing Home UserClosed will be False

DonManfred · May 25, 2016

LucaMs said:
Pressing Home UserClosed will be False

Really? Oups

anaylor01 · May 27, 2016

I am at a loss. It runs through the code and everything is fine. Then it runs the end sub of the KeyPress sub of the code below and everything disappears.

B4X:

Sub Activity_KeyPress (KeyCode As Int) As Boolean
If KeyCode = KeyCodes.KEYCODE_BACK Then
Select layout
        Case  "NewGame"
                allinvisible
                MainMenu
    End Select
End If
End Sub

terryn · May 28, 2016

You need to return "True" in Activity_KeyPress sub to consume the event and prevent the app from closing.

Terry

anaylor01 · May 28, 2016

How do I do that?

terryn · May 28, 2016

B4X:

Sub Activity_KeyPress (KeyCode As Int) As Boolean
If KeyCode = KeyCodes.KEYCODE_BACK Then
Select layout
        Case  "NewGame"
                allinvisible
                MainMenu
                Return True 'Consume the event
    End Select
End If
End Sub

anaylor01 · May 29, 2016

Thanks Terryn.

anaylor01 · May 31, 2016

When the user presses the back key I have a msgbox that pops up. How do I make it so the msgbox just goes away and it acts like the user never pressed the back button?

LucaMs · May 31, 2016

I don't understand well what you need!

You could not show the msgbox or you can use a panel instead of msgbox.

Se poi lo spieghi in italiano, meglio ancora.

anaylor01 · Jun 4, 2016

Well when the user presses the back button a messagbox opens that asks them if they want to continue playing, go to the main menu or exit the application. So if they select continue playing I don't want anything to happen except exit the messagebox.

mangojack · Jun 4, 2016

Personally I hate the "Are you sure you want to quit" message .. if I didn't I would have not chosen the quit option . If I made a mistake I can always restart.
What I'm trying to say .. If your user presses the back button they have done so for a reason .. and it is Not to continue playing.

IMO ... Only give them the option of Menu or Exiting (from the menu cannot they re-continue play if it was a mistake ?)

anaylor01 · Jun 4, 2016

The reason I put that is because I accidentally hit the back button too many times. Going to the main menu and then back into the game is not as easy as pressing Continue playing. So how do I just make it close the message box?

mangojack · Jun 5, 2016

anaylor01 said:
Well when the user presses the back button a messagbox opens that asks them if they want to continue playing, go to the main menu or exit the application. So if they select continue playing I don't want anything to happen except exit the messagebox.

B4X:

Dim response As Int = Msgbox2("Choose your Option","Options","Main Menu","Cancel","Exit App",Null)    ' Cancel or Continue Play
  
   Log (response)
  
   Select response
      Case DialogResponse.POSITIVE
         Log ("Main Menu")    'show main menu
      Case DialogResponse.NEGATIVE
         Log ("Exit App")    'exit the app
     'Case DialogResponse.CANCEL
        'Log ("Cancel")       'Do Nothing ?? >> depending on your code prior to showing this Message Box this Case is not needed
    End Select

anaylor01 · Jun 6, 2016

Thanks

anaylor01 · Jun 12, 2016

I thought the continue playing was working but it closes the application.

B4X:

Sub Activity_KeyPress (KeyCode As Int) As Boolean

If KeyCode = KeyCodes.KEYCODE_BACK Then

Select layout
        Case  "NewGame"
                allinvisible
                MainMenu
                 Return True
        Case  "Options"
                allinvisible
            MainMenu
             Return True
        Case  "GamePlay"
        Dim result As Int
result =    Msgbox2("Exit Game?", "Exit", "Exit", "Main Menu", "Continue playing",Null)
            If result = DialogResponse.Positive Then
Msgbox(gmid,"gameid")
                ExitApplication
        'else if result = DialogResponse.NEGATIVE Then
            'continue playing
            'Return
        else If result = DialogResponse.CANCEL Then
                 'mainmenu
            allinvisible
            MainMenu
             Return True
                End If
        Case  "LoadGame"
                allinvisible
            MainMenu
             Return True
        Case "Mainmenu"
            ExitApplication
        Case "HowtoPlay"
                allinvisible
            Options
             Return True
        Case Else
            Msgbox("Need to create a backbutton for this","test")
    End Select
End If
If KeyCode = KeyCodes.KEYCODE_HOME Then
    Msgbox("HOME","home")
   
End If
End Sub

Android Question Back button select case statement

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