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The "back button" allows you to return to the calling page; if you remove that page, page 2 in your case, by calling ShowPageAndRemovePreviousPage, you cannot return to it, of course. Note that, however, if page 2 calls page 1, the back button would return you to page 2, not to the MainPage, becaus
link: 2) From 'Page 1' I can go to 'Page 2'. The Problem: From 'Page 2', after clicking 'Button 1' or 'Button 2', When the control goes to 'Page 1' again,
link: 'Page 2' (if it was called from 'Page 2')...'' sounds logical (in the sense that the 'Track to Page 2' is removed but then it should not have any bear
link: You can finesse the flow by using in page1 B4XPages.ShowAndRemovePreviousPages("page2") to remove the back arrow on page 2 And then rebuild the stack

Hi Fam The back button controls the visibility & navigation when the back button is active. This is like the normal back button in an app. The settings buttons show on the right menu of the bot. This is demonstrated below. Demo https://youtube.com/shorts/oGRG9_XRXCY We define the buttons Priv

3. VERY IMPORTANT - the Android "back button" is a problem. If a player moves from Activity1 to Activity2 then the back button will take them back to Activity1 - this is not whar you want to happen. If they close and restart the app after reaching Activity2 then they will restart in Activity2 and wi

Declare it as a B4XView then you can set the color with: Button1.Color = Colors.White or, if you want a border and corner radii. Button1.SetColorAndBorder(Colors.White, 1dip, Colors.Black, 10dip) And to get the color with: BackColor = Button1.Color
link: Hi, Is there a way to get button's color (background & textcolor) in runtime? (The button is a simple B4A button - dim b as button) Thanks
link: thank you for sharing i got same problem

Just add this code to the Activity that you want to intercept the back key with: Sub Activity_KeyPress (KeyCode As Int) As Boolean Log("Keypress: " & KeyCode) Select Case KeyCode Case KeyCodes.KEYCODE_BACK '....handle the back key event yourself here ...
link: Another option is to use multiple activities instead of panels. This way the navigation will work out of the box.
link: Hello everybody, i have a question about back button: i would realize a back button to get back to last Panel i opened Sub btn_Click Pnl1.Visible

Tip: switch to B4XPages and everything will be simpler. In non-B4XPages the back button destroys the current activity and the home button pauses the activity and shows the home screen. In B4XPages the back button hides the current page. Pages are never paused or destroyed. The home button moves the
link: I tried this code to prevent back key from closing app: Sub B4XPage_CloseRequest As ResumableSub Return False End Sub But got this error: Err

hi, my english is not so good.. someone knows how to do that when i press the back button(on my device), in the webview it will return back(to the before-last page). thanks
link: Try this https://www.b4x.-button-with-webview.85335/

If i remember correctly you have to use 'return true or false' properly in this case. I'm on my phone in the train, so i can't do it for you. But you will find keycode subs examples here with the correct use of return.
link: Sub Activity_KeyPress (KeyCode As Int) As Boolean
link: I am not able to debug this problem, can someone help me with this? thanks java.lang.ClassCastException: java.lang.String cannot be cast to java.lang

From a page of the application by pressing a button open another page with a form. When saving the form I want to go back to the page from which I opened the form. How can I do this programmatically? (Similar to pressing the Back button on the top left of the page)
link: From the second page and above use the Show sub of the code module as described in the three page example. For returning to the first I have no clue.
link: You can call Main.NavControl.RemoveCurrentPage to remove the top page.
link: Dear Erel, My app currently contains 2 pages, one is Main and the other is SalesFigure. The page SalesFigure is triggered from page Main's button. The

It's a long process :( The Back button and Activity.Finish close the current Activity, but the previous Activity is opens differently. The back button performs correctly.
link: I need to close the current Activity without using Activity.Finish.
link: What action do you actually need to do ?

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