{"action":"opened","issue":{"url":"https://api.github.com/repos/ioscreator/ioscreator/issues/10","labels_url":"https://api.github.com/repos/ioscreator/ioscreator/issues/10/labels{/name}","comments_url":"https://api.github.com/repos/ioscreator/ioscreator/issues/10/comments","events_url":"https://api.github.com/repos/ioscreator/ioscreator/issues/10/events","html_url":"https://github.com/ioscreator/ioscreator/issues/10","id":65169455,"number":10,"title":"how to achieve refresh data by pull up?","user":{"login":"TangSirOnGit","id":10524715,"avatar_url":"https://avatars.githubusercontent.com/u/10524715?v=3","gravatar_id":"","url":"https://api.github.com/users/TangSirOnGit","html_url":"https://github.com/TangSirOnGit","followers_url":"https://api.github.com/users/TangSirOnGit/followers","following_url":"https://api.github.com/users/TangSirOnGit/following{/other_user}","gists_url":"https://api.github.com/users/TangSirOnGit/gists{/gist_id}","starred_url":"https://api.github.com/users/TangSirOnGit/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/TangSirOnGit/subscriptions","organizations_url":"https://api.github.com/users/TangSirOnGit/orgs","repos_url":"https://api.github.com/users/TangSirOnGit/repos","events_url":"https://api.github.com/users/TangSirOnGit/events{/privacy}","received_events_url":"https://api.github.com/users/TangSirOnGit/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-03-30T09:14:33Z","updated_at":"2015-03-30T09:14:33Z","closed_at":null,"body":"Hi:\r\n\r\nHow to achieve refresh data bu pull up in UICollectionViewController?\r\nthanks a lot"}}