UIStoryboard UIStoryboardSegue

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1: 使用UIStoryboardSegue跳转时触发 此方法优先与下一个ViewController 的 viewDidLoad 方法

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1. - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender   
2. {  
3. }  

2: 在UIStoryboardSegue中存放原始的ViewController 和 目的地的ViewController 的引用, 转换类型后,可以直接对其操作

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1. [(UIViewController *)segue.sourceViewController setTitle:@"嘿"];//原始  
2. [(DrawViewController *)segue.destinationViewController setDrawTypeString:segue.identifier];//目的地  

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1: 根据 Identifier 获取 指定 Identifier 的实例 

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1. AboutViewController *about = [storyboard instantiateViewControllerWithIdentifier:ABOUT_IDENTIFIER];  

注:调用时如果没有找到,App 将直接Crash

2: 获取StoryBoard 默认的第一个实例

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1. [storyboard instantiateInitialViewController];  

3:在AppDelegate 中手动初始化 某个StoryBoard

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1. self.window = [[iConsoleWindow alloc] init];  
2. self.window.rootViewController = [[UIStoryboard storyboardWithName:@"MainStoryboard_iPhone" bundle:nil] instantiateInitialViewController];  

4:从普通XIB中跳转到StoryBoard 

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1. UIStoryboard *stryBoard=[UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];  
2. self.view.window.rootViewController=[stryBoard instantiateInitialViewController];  

XCode 对 StoryBoard 监听到的警告解析

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