{"action":"opened","issue":{"url":"https://api.github.com/repos/forkingdog/FDFullscreenPopGesture/issues/21","labels_url":"https://api.github.com/repos/forkingdog/FDFullscreenPopGesture/issues/21/labels{/name}","comments_url":"https://api.github.com/repos/forkingdog/FDFullscreenPopGesture/issues/21/comments","events_url":"https://api.github.com/repos/forkingdog/FDFullscreenPopGesture/issues/21/events","html_url":"https://github.com/forkingdog/FDFullscreenPopGesture/issues/21","id":93461626,"number":21,"title":"求教一个UIRectEdgeNone导致的UINavigationBar动画问题","user":{"login":"wonderffee","id":4888291,"avatar_url":"https://avatars.githubusercontent.com/u/4888291?v=3","gravatar_id":"","url":"https://api.github.com/users/wonderffee","html_url":"https://github.com/wonderffee","followers_url":"https://api.github.com/users/wonderffee/followers","following_url":"https://api.github.com/users/wonderffee/following{/other_user}","gists_url":"https://api.github.com/users/wonderffee/gists{/gist_id}","starred_url":"https://api.github.com/users/wonderffee/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wonderffee/subscriptions","organizations_url":"https://api.github.com/users/wonderffee/orgs","repos_url":"https://api.github.com/users/wonderffee/repos","events_url":"https://api.github.com/users/wonderffee/events{/privacy}","received_events_url":"https://api.github.com/users/wonderffee/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-07-07T07:36:34Z","updated_at":"2015-07-07T07:36:34Z","closed_at":null,"body":"此问题主要还是一个手势返回的动画问题，与阳神原博的问题有点类似，但有所区别的，这里所说的情况都是真Bar。\r\n\r\n问题的详情细述在[这里](https://github.com/wonderffee/LTNavigationBar)。\r\n\r\n这里还是简单描述一下吧：        \r\n有两个VC分别为A和B，A顶部的导航栏为透明，view的顶部B顶部的导航栏不透明，从A push到B，手势返回时发现导航栏提前显示了A顶部导航栏的背景视图。定位原因为B中self.edgesForExtendedLayout = UIRectEdgeNone;这行代码的使用，如果把它注释，动画效果是不会混乱了，但是就没有了UIViewController中view的y坐标从64（statusBar和navigationBar）开始计算的效果。\r\n\r\n如何在使用真Bar与UIRectEdgeNone的同时使返回动画丝般顺滑呢？"}}