Pull-To-Refresh
New Pull-to-Refresh Library
On 29, Nov 2011 | 2 Comments | In Pull-To-Refresh | By Chris Banes
Hi everyone,
Over the past week or so I’ve been working on a new implementation of the Pull-to-Refresh widget for Android, as part of improvements for FriendCaster. The new library is based off Johan Nilsson’s library, but has changed a lot since then.
The way that the previous library achieves Pull-To-Refresh is via ListView HeaderViews which has certain drawbacks:
- Hard to show/hide the HeaderView when you don’t have enough items in your list
- Have to use ScrollListener, which is slow.
- Only works with ListView’s.
Our new library is different because it’s actually a LinearLayout wrapper around an AdapterView, which hides/shows the Refreshing View. The end result has several improvements over the previous library:
- Can be used with all AdapterViews (ListView, GridView, etc, etc).
- Animated Scrolling for all relevant Android OS versions (tested on v1.6+).
- Works properly when you don’t have many items in your AdapterView (no more ‘Tap to Refresh’).
- Works just as well as the Official Twitter App’s Pull-to-Refresh in my opinion.
You can find the new Library here: https://github.com/chrisbanes/Android-PullToRefresh
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Dingzhihu
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