ios 动画效果CATransition笔记

   初学ios开发，很多概念还不清楚，所以只有边学边做例子。又怕学了后面忘了前面，因此用自己的博客来纪录自己的学习历程，也是对自己学习不要懈怠做个监督。

    刚学ios做动画效果。因为ios封装得很好，实现ios的漂亮动画效果也很简单，却因为我自己的粗心落了一个字母 导致纠结了一天，这个教训必须记住，同时也懂得了调试技能在编程里地位也是非常重要的存在。

   实现ios动画有两种方法：一种UIView层面的，一种是使用CATransition.

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.

    UIView *redView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    redView.backgroundColor = [UIColor redColor];
    [self.view addSubview:redView];

    UIView *yellowView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    yellowView.backgroundColor = [UIColor yellowColor];
    [self.view addSubview:yellowView];

    UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [button setTitle:@"改变1" forState:UIControlStateNormal];
    button.frame = CGRectMake(10, 10, 300, 40);
    [button addTarget:self action:@selector(changeUIView1) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:button];



    UIButton *button2 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [button2 setTitle:@"改变2" forState:UIControlStateNormal];
    button2.frame = CGRectMake(10, 120, 300, 40);
    [button2 addTarget:self action:@selector(changeUIView2) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:button2];
}
-(void) changeUIView1{
    [UIView beginAnimations:@"animation" context:nil];
    [UIView setAnimationDuration:1.0f];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
    [UIView setAnimationTransition:UIViewAnimationTransitionCurlDown forView:self.view cache:YES];
    [self.view exchangeSubviewAtIndex:1 withSubviewAtIndex:0  ];
    [UIView commitAnimations];
}

-(void) changeUIView2{
   CATransition *transition = [CATransition animation];
    transition.delegate = self;
    transition.duration = 2.0f;
    transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];
    transition.type = kCATransitionPush;
    transition.type = @"pageCurl"  ;//另一种设置动画效果方法
    transition.subtype = kCATransitionFromBottom;
    [self.view exchangeSubviewAtIndex:1 withSubviewAtIndex:0];
    [self.view.layer addAnimation:transition forKey:@"animation"];
}

调用CATransition需要在frameworks中添加QuartzCore.framework，在.h文件中加入  #import <QuartzCore/QuartzCore.h>

setType:有四种类型：

    

    kCATransitionFade                   //交叉淡化过渡

    kCATransitionMoveIn               //移动覆盖原图

    kCATransitionPush                    //新视图将旧视图推出去

    kCATransitionReveal                //底部显出来

另一种设置方法

   pageCurl     //向上翻一页

    pageUnCurl   //向下翻一页

    rippleEffect   //滴水效果

    suckEffect     //收缩效果，如一块布被抽走

    cube       //立方体效果

    oglFlip      //上下翻转效果

setSubtype:有四种类型：

    

    kCATransitionFromRight；

    kCATransitionFromLeft(默认值)

    kCATransitionFromTop；

    kCATransitionFromBottom