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My app has two a start screen and two additional screens. Last two screens have Back button checked in Header (I also named the Back buttons back1 and back2). I created two buttons in Header of Start Screen and Screen-1 and created events to navigate to next screen. During Test, Back button appears on Screen-1 and takes me to Start Screen. But, if I go from Screen-1 to Screen-2 and then go back, the Back button on Screen-1 has disappeared. Can you have only one Back button in Header? Thanks

Are you using "Use full screen refresh" when navigating to another screen?

No, I do not have "Use full screen refresh" check box checked.
But this option is available on buttons to move forward (to right).
For back navigation, I simply checked "Back Button" check box on Screen-2 and Screen-3 Header properties sheet. I did not use any event for these back buttons. As I said earlier, if I navigate forward from Start Screen to Screen-1, Back button is displayed and I can click it to go back to Start Screen. But, if I go from Start Screen to Screen-1 and then forward again to Screen-2 and now use Back button to go to Screen-1, then the Back button on this middle, Screen-1 has disappeared.
Thanks for your help. It seems, if I have 3 screens then I can't use Back button check box; I may have to create a button, define Back text, left arrow and then use its event to navigate back to Start Screen.

Could you post app public link so we can check this?
http://docs.appery.io/documentation/s...

Igor,
I have shared the project with the support team - a href="mailto:support@appery.io" rel="nofollow"support@appery.io/a so you or Katya should be able to look at it - Katya had been in touch with me in the past.

http://appery.io/app/mobile-frame?src...

Incidentally, I tried checking the check box for "Use full screen refresh" in the events of buttons to navigate to next screen then the Back buttons which I had defined in Headers completely disappear, as if they do not exist.

Thanks

Igor/Katya,
Any update on these Back Button related issue?
Thanks

Hi Sean,

Header back button functionality depends on browser history. It's hide if there is nowhere to return. There can be several reasons.

• Inner app page is opened directly - then window (tab) history is empty and the browser has nowhere to move back.

• Browser history was forcibly reset or corrupted programmatically (via JavaScript, codewindow.location.replace(url);/code replaces the current page and the previous one is not recorded in the history of transitions).
  codewindow.location.replace(url);/code allows you literally break the header Back button.

  If your app requires a complex logic of navigation between pages, I'd recommend you to implement your own Back button with a needed logic.

  When we open your public link we don't see any issues when navigating. Tested on Chrome.