Unsupported Configuration: “View Controller” is unreachable because it has no entry points, and no identifier for runtime access via -[UIStoryboard instantiateViewControllerWithIdentifier:]. 直译:不支持的设置:"View Controller"是不能被取到的,因为它没有程序入口指针,也没有标识符以…
使用Storyboard时出现以下警告: warning: Unsupported Configuration: Scene is unreachable due to lack of entry points and does not have an identifier for runtime access via -instantiateViewControllerWithIdentifier:. 这个警告一般出现在你往 Storyboard 拖了一个控制器, 但是没有连线到, 就会提示,…
使用Storyboard时出现以下警告: warning: Unsupported Configuration: Scene is unreachable due to lack of entry points and does not have an identifier for runtime access via -instantiateViewControllerWithIdentifier:. 大意是为了在程序中动态访问Scene,需要给其设置一个Storyboard ID,所以给出了…
Failed to instantiate the default view controller for UIMainStoryboardFile 'Main' - perhaps the designated entry point is not set? 这是因为给你的StoryBoard没有设置默认显示的controller, 解决方法: from:http://my.oschina.net/u/936286/blog/316565…
Resource Management in View Controllers View controllers are an essential part of managing your app’s resources. View controllers allow you to break your app up into multiple parts and instantiate only the parts that are needed. But more than that, a…
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 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…
About View Controllers View controllers are a vital link between an app’s data and its visual appearance. Whenever an iOS app displays a user interface, the displayed content is managed by a view controller or a group of view controllers coordinating…
今天把Xcode升级了,模拟器 用的12.1的系统,运行时发现项目总是崩溃,采用9.3系统的测试机发现错误日志如下: Application windows are expected to have a root view controller at the end of application launch 解决办法如下: self.window = [[UIWindow alloc]initWithFrame:SCREEN_RECT]; self.window.backgroundColor…
Attempting to load the view of a view controller while it is deallocating is not allowed and may result in undefined behavior (<UISearchController: 0x7f9c28c9d740>) 出现此类错误的时候很是头疼,因为这是 iOS9.0之类才会出现的错误,具体表现就是当 UISearchBar 出现的时候控制台就会输入此类的信息: 其实也很好解决,可以…
转载地址:http://blog.sina.com.cn/s/blog_6784e6ea01017jfy.html 最新更正:这个提示几乎不影响编译和运行,可以不用设置. 产生这个提示的操作:在xcode4.6中创建一个名字为appTest空工程,create一个ios-application-empty application,直接编译运行 错误提示:虽然编译通过,也能运行,但是底下有错误提示“application windows are expected to have a r…
View Controller的组合应用其实很常见了,比如说Tab bar controller和Navigation view controller的组合使用,像这种一般都是Navigation view controller作为Tab bar controller的一个child view controller,对应了一个Tab bar item. 然后今天在Review 另外一组的一个产品的代码时,发现他们将Tab bar controller作为了一个普通view controller的…