Just a little smile ^ ^

yoyo_zeng

  博客园  :: 首页  :: 新随笔  :: 联系 :: 订阅 订阅  :: 管理

View Controller中可以添加多个sub view,在需要的时候显示出来;

可以通过viewController(parent)中可以添加多个child viewController;来控制页面中的sub view,降低代码耦合度;

通过切换,可以显示不同的view;,替代之前的addSubView的管理

 

   //在parent view controller 中添加 child view controller
   FirstViewController *firstViewController=[[FirstViewController alloc] initWithNibName:@"FirstViewController" bundle:nil];
    [self addChildViewController:firstViewController];
    
    SecondViewController *secondViewController=[[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];
    [self addChildViewController:secondViewController];
    
    ThirdViewController *thirdViewController=[[ThirdViewController alloc] initWithNibName:@"ThirdViewController" bundle:nil];
    [self addChildViewController:thirdViewController];
    
    [self.view  addSubview:thirdViewController.view];
  
// addChildViewController回调用[child willMoveToParentViewController:self] ,但是不会调用didMoveToParentViewController,所以需要显示调用 [thirdViewController didMoveToParentViewController:self]; currentViewController=thirdViewController;   //切换child view controller [self transitionFromViewController:currentViewController toViewController:firstViewController duration:4 options:UIViewAnimationOptionTransitionFlipFromLeft animations:^{ } completion:^(BOOL finished) { //...... }]; currentViewController=firstViewController;   //移除child view controller // removeFromParentViewController在移除child前不会调用[self willMoveToParentViewController:nil] ,所以需要显示调用 [currentViewController willMoveToParentViewController:nil]; [currentViewController removeFromSuperview]; [currentViewController removeFromParentViewController];

 

 

 

posted on 2014-03-06 10:35  yoyo_zeng  阅读(37587)  评论(0编辑  收藏  举报