【UIKit-125-6】#import <UIKit/UIViewController.h>

原创于 2015-09-26 19:10:31 发布 · 583 阅读

CC 4.0 BY-SA版权

本文深入探讨了iOS中UIViewController的子视图控制器生命周期方法，包括shouldAutomaticallyForwardAppearanceMethods、willMoveToParentViewController和didMoveToParentViewController的使用场景与实现效果。

【子视图控制器的lifeCycle】

@interface UIViewController (UIContainerViewControllerCallbacks)

- (BOOL)shouldAutomaticallyForwardAppearanceMethods NS_AVAILABLE_IOS(6_0);

//该方法返回NO则childViewController不会自动viewWillAppear和viewWillDisappear对应的方法
- (BOOL)shouldAutomaticallyForwardAppearanceMethods
{
    return NO;
}

//都写在子视图控制器中。

- (void)willMoveToParentViewController:(UIViewController *)parent NS_AVAILABLE_IOS(5_0);

- (void)didMoveToParentViewController:(UIViewController *)parent NS_AVAILABLE_IOS(5_0);

-(void)willMoveToParentViewController:(UIViewController *)parent{
    NSLog(@"willmoveto");//add时调用
}

-(void)didMoveToParentViewController:(UIViewController *)parent{
    NSLog(@"didmoveto");//remove时调用
}

@end