💾 Archived View for alaskalinuxuser.ddns.net › 2023-10-17.gmi captured on 2024-09-29 at 00:21:59. Gemini links have been rewritten to link to archived content
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">One of the issues on the issue tracker for my app JustChess is a comment
about back button behavior. Technically, their problem is that if they press
the back button to leave the game, the game is gone when they try to play again
by choosing to play one or two players. This is a problem for the user because
they accidentally push the back button a lot, and they don’t want to lose their
current game. You can read the entire write up on Gitlab:
https://gitlab.com/alaskalinuxuser/app_JustChess/-/issues/17
">While it is very possible to fix this behavior, it actually messes with the
simple flow of the app to change that now. They requested that when the app is
force closed and reopened (either manually or by restart) that the game
persists. The game does persist if you go to the home screen and then return to
the app (this is called resuming), but not when the app is actually closed, nor
when you press the back button to exit the board and go back to choose how you
want to play. To change that behavior now means having a dialog with the user
where they can continue their game or start a new one.
">Of course, that is still possible, but it wasn’t really something I wanted to
implement at this time. It should be simple enough, essentially to save the
board and whose turn it was, feeding it back to the game as a “new game” in a
saved position. For now, I decided to use a simple trick to solve the
“accidentally pressing the back button” issue:
">@Override\n public void onBackPressed() {\n new AlertDialog.Builder(this)\n
.setTitle("Quit Game?")\n .setMessage("Are you sure you want to quit?")\n
.setNegativeButton(android.R.string.no, null)\n .setPositiveButton
(android.R.string.yes, new DialogInterface.OnClickListener() {\n\n public void
onClick(DialogInterface arg0, int arg1) {\n MainActivity.super.onBackPressed
();\n }\n }).create().show();\n }
">Adding this block of code to the MainActivity.java file, there will now be a
popup asking you if you want to quit when you press the back button. I know
that “onBackPressed()” is depreciated, but this game’s API is low enough that
it still works just fine.
">Linux – keep it simple.