iOS Question TopLeftButton TopRightButton in the title are not displayed

Lakhtin_V · Mar 30, 2018

I want to have left and right buttons at the top of the window, in the middle part the title

B4X:

Dim bbt1, bbt2 As BarButton
    Page1.Title="GURU"
    bbt1.InitializeText("<Exit.","Exit")
    bbt2.InitializeText("Start>","Start")
    Page1.TopLeftButtons.Add(bbt1)
    Page1.TopRightButtons.Add(bbt2)

The title appears and the buttons on the sides do not

Erel · Mar 30, 2018

It is a mistake to build the layout programmatically. Especially in B4J and B4i (see the B4i / B4J - Resize event video tutorial to understand why: https://www.b4x.com/etp.html).
Take the time to learn to use the designer. It will be worth it.

See TopLeftButtons documentation: https://www.b4x.com/b4i/help/views.html#page_toolbarbuttons
You need to set a new list or array:

B4X:

Page1.TopLeftButtons = Array(bbt1)

Lakhtin_V · Mar 31, 2018

Thanks for the advice, I learned how to create Top Right Buttons on the topbar. I successfully created them with the help of the designer and in manual mode. But I do not understand how to set the code that will be executed when I press this button. In your video tutorial I did not find the answer. There is no such example in the user's Guide B4i. I tried to create a procedure like Sub bbt1_click but it does not work.

B4X:

Dim bbt1 as BarButton, bbt2 as BarButton
bbt1.InitializeText("DO","TAGg")
Page1.TopRightButtons=Array(bbt1)

Private Sub TAGg_Click
or
Private Sub TAGg_BarButtonClick
or
Private Sub bbt1_BarButtonClick
or
Private Sub Page_BarButtonClick      ->(from Guide)
or ?

In the design, it is possible. For simple Button I without problem generate Sub for Click event but for the barbaton this option is not found.

klaus · Mar 31, 2018

You need to use something like this:

B4X:

' Page1 ToolBar buttons event routine
Private Sub Page1_BarButtonClick (Tag As String)
    Select Tag
    Case "Exit"
        ' your code
    Case "Start"
        ' your code
    End Select
End Sub

Example extracted from the UINavBar example program in the B4i Beginner's Guide SourceCode.

Lakhtin_V · Mar 31, 2018

The beginning word (Page1) of the name of the procedure must match the name of the page?

klaus · Mar 31, 2018

Yes!
Have a look at the UINavBar example program it contains three pages.

iOS Question TopLeftButton TopRightButton in the title are not displayed

Lakhtin_V

Active Member

Erel

B4X founder

Lakhtin_V

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klaus

Expert

Lakhtin_V

Active Member

klaus

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