{"id":560,"date":"2014-10-18T14:44:27","date_gmt":"2014-10-18T12:44:27","guid":{"rendered":"http:\/\/blog.ansuz.nl\/?p=560"},"modified":"2014-10-18T14:44:27","modified_gmt":"2014-10-18T12:44:27","slug":"android-swipe-to-reveal","status":"publish","type":"post","link":"http:\/\/blog.ansuz.nl\/index.php\/2014\/10\/18\/android-swipe-to-reveal\/","title":{"rendered":"Android swipe to reveal"},"content":{"rendered":"

More and more Android apps seem to use a swipe-to-reveal or swipe-for-action<\/a> UX pattern with ListViews<\/a>. This is a nice way to give (power) users fast access to certain actions. One of the downsides is that these swipe gestures are often hard to discover.<\/p>\n

If you want to use this technique, have a look at 47 degree’s\u00a0android-swipelistview<\/a> library.<\/p>\n

I ran into a small issue when trying it out. When I was building my project, I got the following error:<\/p>\n

\n\n\t\t
\n\n\t\t
\n\t\t\t\t\t\t< View plain text<\/span> ><\/a>\n\t\t\t\t\t<\/div>\n\n\t\t
bash<\/div>\n\n\t\t\n\t\t
\n\n\t<\/div>\n\t\n\t
\n\t\t
  1. error: Attribute "***"<\/span> has already been defined<\/div><\/li>\n<\/ol>\t<\/div>\n\n<\/div>\n\n

    In my case this was caused by ActionBarSherlock<\/a> using the same library as the android-swipelistview project. Adding an exclusion to my Gradle build script solved this.<\/p>\n

    \n\n\t\t
    \n\n\t\t
    \n\t\t\t\t\t\t< View plain text<\/span> ><\/a>\n\t\t\t\t\t<\/div>\n\n\t\t
    groovy<\/div>\n\n\t\t\n\t\t
    \n\n\t<\/div>\n\t\n\t
    \n\t\t
    1. compile (<\/span>'com.fortysevendeg.swipelistview:swipelistview:1.0-SNAPSHOT@aar'<\/span>)<\/span> {<\/span><\/div><\/li>\n
    2.  <\/div><\/li>\n
    3.     transitive =<\/span> true<\/span><\/div><\/li>\n
    4.     exclude group: "com.android.support"<\/span>, module: "appcompat-v7"<\/span><\/div><\/li>\n
    5. }<\/span><\/div><\/li>\n<\/ol>\t<\/div>\n\n<\/div>\n\n

      Usage in combination with\u00a0SwipeRefreshLayout<\/strong><\/p>\n

      If you want this swipe library in combination with the new\u00a0SwipeRefreshLayout<\/a> class, there is a little more work you need to do. To facilitate this, I have forked<\/a> the original project and added the functionality as suggested by\u00a0Keith Thompson<\/a> in the issue<\/a> he opened on the project site.<\/p>\n

      I ran into another issue where both the swipe-to-reveal as the pull-to-refresh actions were performed. This would happen when the ListView was at the top, the user would\u00a0swipe horizontally and then pulled down. This has been fixed in my fork too.<\/p>\n

      An example of how to hook up this functionality can be found in Keith’s fork<\/a> of the android-swipelistview\u00a0project.\u00a0The key classes to look at are “CustomSwipeRefreshLayout” in the sample project and “RefreshSwipeListView” in the library.<\/p>\n

      Other issues<\/strong><\/p>\n

      The original\u00a0android-swipelistview\u00a0project has some other issues too:<\/p>\n