Question

I have implemented one “up” button and one “down” button in my layout.xml which I want to use in order to navigate through a ListView of strings. How can I accomplish this?
I do not want to use the “scroll” property of the ListView nor to use a LinearLayout with vertical orientation within a Scrollview in order to traverse the list. I simply want to move up and down my ListView by pressing the corresponding buttons.

Any help is appreciated!

Answer 1

You could have a variable int i = 0; in your class body.
Then when the activity loads, the item at location 0 would be selected. If your user presses the down button, then do:

i++;
setSelection(i);

And similarly for going back up:

i--;
setSelection(i);

Of course you’d have to add logic to the code for when you’re already at selection 0 or at the maximum selection, but that’s the gist of how I’d do it.

To note, I’ve never used ListView as I’ve not needed to, but the above should work. I got all my information from The Android Documentation