如果习惯使用纯代码编程的开发者，会感觉使用StoryBoard会非常不舒服，但是看完本教程能让你快速使用StoryBoard开发。StoryBoard和StoryBoard、StoryBoard和Code视图控制器、StoryBoard和Xib视图控制器之间切换和传值。
一 于StoryBoard相关的类、方法和属性
1 UIStoryboard
// 根据StoryBoard名字获取StoryBoard
+ (UIStoryboard *)storyboardWithName:(NSString *)name bundle:(nullabßle NSBundle *)storyboardBundleOrNil;
// 获取指定StoryBoard的第一个视图控制器
- (nullable __kindof UIViewController *)instantiateInitialViewController;
// 获取指定StoryBoard的标识符为identifier的视图控制器
- (__kindof UIViewController *)instantiateViewControllerWithIdentifier:(NSString *)identifier;
2 UIStoryboardSegue
// 标识符
@property (nullable, nonatomic, copy, readonly) NSString *identifier;
// 源视图控制器
@property (nonatomic, readonly) __kindof UIViewController *sourceViewController;
// 目的视图控制器
@property (nonatomic, readonly) __kindof UIViewController *destinationViewController;
3 UIStoryboardUnwindSegueSource
4 UIStoryboardPopoverSegue
5 UIViewController
// 处理标识符为identifier的StoryBoardSegue
- (void)performSegueWithIdentifier:(NSString *)identifier sender:(nullable id)sender NS_AVAILABLE_IOS(5_0);
二 动态加载StoryBoard
AppDelegate.m
动态加载StoryBoard，TARGETS设置中Deployment Info 项Main Interface删除main
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
UIViewController *vc = [[UIStoryboard storyboardWithName:@"Main" bundle:nil] instantiateInitialViewController];
self.window.rootViewController = vc;
return YES;
}
三 StoryBoard->StoryBoard切换和传值
图例1
1 视图切换
方法一：
图例2
方法二：
图例4
// StoryBoard 跳转到 StoryBoard
- (IBAction)StoryBoardCodePushButton:(id)sender
{
// 已经连线的seg
[self performSegueWithIdentifier:@"Detail" sender:self];
}
2 视图传值
// UIViewController 方法 用于处理视图控制器之间的传值
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([sender isKindOfClass:[UIButton class]])
{
// 方法一,使用KVC给B 也就是目标场景传值
UIViewController *destinationController=[segue destinationViewController];
[destinationController setValue:@"StoryBoard Segue Push" forKey:@"name"];
}
else
{
// 方法2,使用属性传值,需导入相关的类.h
DetailViewController *bController=[segue destinationViewController];
bController.name=@"StoryBoard Code Push";
}
}
四 StoryBoard->Code视图控制器切换和传值（Xib视图控制器原理一样）
self视图控制器是用StoryBoard创建的
// StoryBoard 跳转到 Code
- (IBAction)StoryBoardtoCodeVCPush:(id)sender
{
CodeViewController *vc = [[CodeViewController alloc] init];
vc.name = @"StoryBoard to CodeVC Push";
[self.navigationController pushViewController:vc animated:YES];
}
五 Code视图控制器->StoryBoard切换和传值（Xib视图控制器原理一样）
图例3
self视图控制器是用Code（Xib）创建的
- (void)barButton
{
// 从Code视图控制器跳转到StoryBoard中的视图控制器 （Xib原理一样）
UIStoryboard *story = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
DetailViewController *vc = [story instantiateViewControllerWithIdentifier:@"VC"];
vc.name = @"Code to StoryBoard Push";
[self.navigationController pushViewController:vc animated:YES];
}
