使用UIAlertController提示信息,在之后使用navigation进行逻辑跳转时,出现popToViewController:transition: called on <UINavigationController 0x7fc27b8ac000> while an existing transition or presentation is occurring; the navigation stack will not be updated.错误.如图: 原因:dismiss操…

关于transition的几个基本点: 1. transition()是针对与每个DOM element的,每个DOM element的transition并不会影响其他DOM element的transition操作: 2. 对于每一个DOM element的transition每次只能执行一个,如果在一个DOM element上添加了许多transition操作,只有最后一个会起作用,前面的都会被覆盖掉.但是例外是,当这些transition是chaining的形式连接的时候,这些trans…

最近学习了一下ios7比较重要的一项功能,就是 controller 的 custom transition. 在ios7中,navigation controller 中就使用了交互式过渡来返回上级界面,可以通过设置interactivePopGestureRecognizer.enabled 来关闭这个效果. 请参阅 ,写的非常好,建议2篇文章都要读读 http://onevcat.com/2013/10/vc-transition-in-ios7/ http://www.teehanlax…

View Controller Basics   视图控制器基础 Apps running on iOS–based devices have a limited amount of screen space for displaying content and therefore must be creative in how they present information to the user. Apps that have lots of information to display…

view types - view常见类型…

View Controller Basics Apps running on iOS–based devices have a limited amount of screen space for displaying content and therefore must be creative in how they present information to the user. Apps that have lots of information to display must there…

  Animations Animations provide fluid visual transitions between different states of your user interface. In iOS, animations are used extensively to reposition views, change their size, remove them from view hierarchies, and hide them. You might use…

Creating Custom Content View Controllers 自定义内容视图控制器 Custom content view controllers are the heart of your app. You use them to present your app’s unique content. All apps need at least one custom content view controller. Complex apps divide the workl…

https://developer.apple.com/library/ios/featuredarticles/ViewControllerPGforiPhoneOS/AboutViewControllers/AboutViewControllers.html#//apple_ref/doc/uid/TP40007457-CH112-SW10 https://developer.apple.com/library/ios/featuredarticles/ViewControllerPGfor…

relationship -A "relationship" segue is the segue between a container view controller and its child or children -- so, the initial controller of a navigation controller, the view controllers in the tabs of a tab bar controller, and the master an…