How do I make a looping ScrollView?

Question

Like the title says, how do I make a looping scrollview? :)

In other words, when you scroll to the bottom, the scrollview should not stop and continue in the same speed from the top seamless! hope someone knows this!

There is nothing built into Android for this. You will need to create your own custom `View` class, unless somebody else has already written one for you. — CommonsWare, May 09 '11 at 11:09
The easiest way I can think of is duplicating the content (vertically), then once the user hits the second content block just translate the ScrollView up by the height of a content block. (Although you'd sort of need to have 3 content blocks for it to work scrolling upwards, and in this case you'd need to start them looking at the middle block) — Joseph Earl, May 09 '11 at 11:11
@CommonsWare I know that it isnt anything for this in the sdk. @Joseph Yes I have thought of that but I think that its a pretty dirty solution... maybe somebody knows a better way :) — Alioooop, May 09 '11 at 13:28
The loop as you want we can work with ListView easy. But with ScrollView i think we can be do by this way: 1. Add triple view that you want to loop in a ViewGroup as LinearLayout (orient vertical) . 2. Override onScrollChanged() to detect when scroll to third subview of viewgroup, at that point, we remove firstview ( have been invisible) then add that view to bottom of groupview — mdtuyen, Nov 25 '15 at 13:01
You can modified this for it: http://stackoverflow.com/questions/10316743/detect-end-of-scrollview — mdtuyen, Nov 25 '15 at 13:07

score 0 · Accepted Answer · answered Nov 25 '15 at 12:45

If you can afford to use a listView instead of a scrollView, there is a library that can turn it into a circular listView :

Circular list adapter for Android's ListView. This adapter makes your existing list adapter appear circular and possibly infinite unless you scroll down through two billion list items ;). Works with list adapters that you already have. No project specific dependencies. Just include the latest jar or the sources to your Android project.

Update: Ooh I just noticed you asked this way back in 2011. Guess you have figured it out by now. Anyway, I'll leave this here.

How do I make a looping ScrollView?

1 Answers1