CoreAnimation核心动画一（一些常用属性和方法）

  1 #import "ViewController.h"  2   3 @interface ViewController ()  4 {  5     UIImageView *imageView;  6 }  7 @end  8   9 @implementation ViewController 10  11 - (void)viewDidLoad { 12     [super viewDidLoad]; 13  14     imageView = [[UIImageView alloc]initWithFrame:self.view.frame]; 15     imageView.image = [UIImage imageNamed:@"7.jpg"]; 16 //    imageView.contentMode = UIViewContentModeScaleaspectFit; 17     [self.view addSubview:imageView]; 18      19     UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; 20     button.frame = CGRectMake(0, 0, 100, 40); 21     button.center = self.view.center; 22     button.backgroundColor = [UIColor brownColor]; 23     [button addTarget:self action:@selector(viewAnimation3) forControlEvents:UIControlEventTouchUpInside]; 24     [self.view addSubview:button]; 25  26  27 } 28  29  30 #PRagma mark -- 1、frame bounds center alpha --- 31 - (void)viewAnimation1 { 32 #pragma mark - 方法1 33 //    在一段时间内 执行完命令 34 //    [UIView animateWithDuration:3 animations:^{ 35 //        imageView.alpha = 0.5; 36 //    }]; 37      38 #pragma mark - 方法2 39 //  开始动画 40     [UIView beginAnimations:@"animation" context:nil]; 41      42 //    这只动画的持续时间 43     [UIView setAnimationDuration:3]; 44      45 //    ..... 动画效果 46     imageView.alpha = 0.5; 47     imageView.bounds = CGRectMake(0, 0, 100, 100); 48     imageView.center = CGPointMake(50, 200); 49 //    imageView.frame = CGRectMake(100, 100, 100, 100); 50      51 //    提交动画  会去执行动画 52     [UIView commitAnimations]; 53 } 54  55 #pragma mark - 2、Transition 56 /* 57  typedef NS_ENUM(NSInteger, UIViewAnimationTransition) { 58  UIViewAnimationTransitionNone, 59  UIViewAnimationTransitionFlipFromLeft, 从左面翻转 60  UIViewAnimationTransitionFlipFromRight,从右面翻转 61  UIViewAnimationTransitionCurlUp, 向上翻页 62  UIViewAnimationTransitionCurlDown,向下翻页 63  }; 64  */ 65 - (void)viewAnimation2 { 66 //    开始动画 67     [UIView beginAnimations:nil context:nil]; 68 //    设置动画持续时间 69 //    [UIView setAnimationDuration:3]; 70 //    设置 UIView 的过渡动画 71     [UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:imageView cache:YES]; 72      73 #pragma mark - 3、UIViewAnimationCurve 74     /* 75      typedef NS_ENUM(NSInteger, UIViewAnimationCurve) { 76      UIViewAnimationCurveEaseInOut,         // slow at beginning and end  慢进慢出 77      UIViewAnimationCurveEaseIn,            // slow at beginning  快进 78      UIViewAnimationCurveEaSEOut,           // slow at end  快出 79      UIViewAnimationCurveLinear   匀速 80      }; 81      */ 82     [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; 83 //    设置 代理（检测动画结束） 84     [UIView setAnimationDelegate:self]; 85     [UIView setAnimationDidStopSelector:@selector(finishAnimation)]; 86 //    提交动画 87     [UIView commitAnimations]; 88      89 } 90  91 //  动画结束之后触发的方法 92 - (void)finishAnimation { 93     [UIView beginAnimations:@"o" context:nil]; 94     [UIView setAnimationDuration:3]; 95     imageView.alpha = 0.1; 96     imageView.bounds = CGRectZero; 97     imageView.center = CGPointMake(100, 100); 98      99     [UIView commitAnimations];100 }101 102 #pragma mark - 4、transform103 /*104  imageView.transform=CGAffineTransformScale(imageView.transform, 0.5, 0.5); // 实现的是放大和缩小imageView.transform=CGAffineTransformRotate(imageView.transform, M_PI_4); //实现的是旋转 imageView.transform=CGAffineTransformTranslate(imageView.transform, 20, 0); //实现的是平移105  */106 - (void)viewAnimation3 {107     108     [UIView beginAnimations:@"animation" context:nil];109     [UIView setAnimationDuration:3];110 //    transform 如果没有还原transform 他会保持 改变后的模样111     imageView.transform = CGAffineTransformScale(imageView.transform, 0.5, 0.5);112     113     [UIView setAnimationDelegate:self];114     [UIView setAnimationDidStopSelector:@selector(restore)];115     [UIView commitAnimations];116     117 }118 119 - (void)restore {120     [UIView animateWithDuration:3 animations:^{121         imageView.transform = CGAffineTransformIdentity;122 123     }];124 }