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一、如图所示的界面,按钮One、Two、Three分别对应三个控制器的view,点击实现切换。个人感觉父子控制器的重点在于,控制器的view们之间建立了父子关系,控制器不建立的话,发生在view上面的事件,对应的view可能接收不到,控制器们建立了父子关系后,可以将事件传递给相应的控制器。
练习代码如下:
1 #import "ViewController.h" 2 #import "OneTableViewController.h" 3 #import "TwoViewController.h" 4 #import "ThreeViewController.h" 5 6 @interface ViewController () 7 /** curView */ 8 @property(nonatomic,strong) UIViewController *curVC; 9 /** old */ 10 @property(nonatomic,assign) NSInteger oldIndex; 11 /** view */ 12 @property(nonatomic,strong) UIView *contentView; 13 @end 14 15 @implementation ViewController 16 17 - (void)viewDidLoad { 18 [super viewDidLoad]; 19 20 // 不给按钮,只给view做动画的解决办法 -- 多用一个view将要动画的view包起来,动画添加到这个view上 21 UIView *contentView = [[UIView alloc] initWithFrame:CGRectMake(0, 64, self.view.bounds.size.width, self.view.bounds.size.height - 64)]; 22 [self.view addSubview:contentView]; 23 24 self.contentView = contentView; 25 26 [self addChildViewController:[[OneTableViewController alloc] init]]; 27 [self addChildViewController:[[TwoViewController alloc] init]]; 28 [self addChildViewController:[[ThreeViewController alloc] init]]; 29 30 31 } 32 33 - (IBAction)btnClick:(UIButton *)sender { 34 35 // 移除当前的 36 [self.curVC.view removeFromSuperview]; 37 38 // 取出角标 39 NSInteger index = [sender.superview.subviews indexOfObject:sender]; 40 // 根据角标从集合中取出相应的VC 41 self.curVC = self.childViewControllers[index]; 42 43 self.curVC.view.frame = self.contentView.bounds; 44 [self.contentView addSubview:self.curVC.view]; 45 46 47 CATransition *anim = [CATransition animation]; 48 anim.type = @"cube"; 49 anim.subtype = index > self.oldIndex ? kCATransitionFromRight : kCATransitionFromLeft; 50 anim.duration = 0.5; 51 [self.contentView.layer addAnimation:anim forKey:nil]; 52 self.oldIndex = index; 53 54 } 55 56 @end
二、总结
[a.view addSubview:b.view]; [a addChildViewController:b]; // 或者 [a.view addSubview:otherView]; [otherView addSubbiew.b.view]; [a addChildViewController:b];
@property(nonatomic,readonly) NSArray *childViewControllers;
//XMGOneViewController成为了self的子控制器 //self成为了XMGOneViewController的父控制器 [self addChildViewController:[[XMGOneViewController alloc] init]]; // 通过addChildViewController添加的控制器都会存在于childViewControllers数组中
@property(nonatomic,readonly) UIViewController *parentViewController;
// 控制器a从它的父控制器中移除 [a removeFromParentViewController];
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原文地址:http://www.cnblogs.com/gchlcc/p/5401283.html