Block动画和spring动画

#import "BlockViewController.h"

@interface BlockViewController ()
@property (weak, nonatomic) IBOutlet UIImageView *yuanyuanImageView;

@end

@implementation BlockViewController

- (void)viewDidLoad {
    [super viewDidLoad];
#pragma mark - UIView Block 的简单动画
    //第一个参数:设置时长,
    //第二个参数:设置动画要实现的效果
    //第三个参数:完成动画的时候所做的事情
//    [UIView animateWithDuration:2 animations:^{
//        //动画实现的效果改变imageView的中心位置
//        NSLog(@"start");
//        self.yuanyuanImageView.center = self.view.center;
////        self.yuanyuanImageView.alpha = 0.3;
//        
//    } completion:^(BOOL finished) {
//        NSLog(@"finished");
//        
//    }];
#pragma mark - UIView Block 的复杂动画
    //1.动画时长,2.动画延迟时间,3.动画效果枚举值,4.实现的动画效果,5.完成动画
    
//    [UIView animateWithDuration:3 delay:2 options:UIViewAnimationOptionCurveEaseInOut animations:^{
//        NSLog(@"start");
//        self.yuanyuanImageView.center = self.view.center;
//    } completion:^(BOOL finished) {
//        NSLog(@"finished");
//    }];
#pragma mark - Block的关键帧动画
    //1.动画时长,2.动画延迟时间,3.动画效果枚举值,4.实现的动画效果,5.完成动画
//    [UIView animateKeyframesWithDuration:3 delay:2 options:UIViewKeyframeAnimationOptionRepeat animations:^{
//        
//        //在这个Block里边添加一个关键帧动画
//        //1.帧动画开始时间,2.持续时间,3.
//        [UIView addKeyframeWithRelativeStartTime:0 relativeDuration:0.5 animations:^{
//            self.yuanyuanImageView.center = self.view.center;
//        }];
//    } completion:^(BOOL finished) {
//        
//    }];
    
}
- (IBAction)esayBlock:(UIButton *)sender {
    [UIView animateWithDuration:2 animations:^{
        NSLog(@"start");
        self.yuanyuanImageView.center = self.view.center;
    } completion:^(BOOL finished) {
        
    }];
}
- (IBAction)complexBlock:(UIButton *)sender {
    [UIView animateWithDuration:2 delay:2 options:UIViewAnimationOptionCurveEaseInOut animations:^{
        self.yuanyuanImageView.center = self.view.center;
    } completion:^(BOOL finished) {
        
    }];
    
}
- (IBAction)keyBlock:(UIButton *)sender {
    [UIView animateKeyframesWithDuration:2 delay:2 options:UIViewKeyframeAnimationOptionRepeat animations:^{
        [UIView addKeyframeWithRelativeStartTime:0 relativeDuration:0.5 animations:^{
            NSLog(@"start");
            self.yuanyuanImageView.center = self.view.center;
        }];
    } completion:^(BOOL finished) {
        NSLog(@"finished");
    }];
//    [UIView animateKeyframesWithDuration:3 delay:2 options:UIViewKeyframeAnimationOptionRepeat animations:^{
//        
//                //在这个Block里边添加一个关键帧动画
//                //1.帧动画开始时间,2.持续时间,3.
//                [UIView addKeyframeWithRelativeStartTime:0 relativeDuration:0.5 animations:^{
//                    self.yuanyuanImageView.center = self.view.center;
//                }];
//            } completion:^(BOOL finished) {
//                
//            }];
}

2.spring

#import "SpringViewController.h"

@interface SpringViewController ()
@property (weak, nonatomic) IBOutlet UIImageView *imageView;

@end

@implementation SpringViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    //1.动画时长 2.延迟时长 3.类似于弹簧的效果(0-1) 4.初始的速度 5.动画过渡效果 6. 开始动画 7.完成动画
    
    [UIView animateWithDuration:2 delay:2 usingSpringWithDamping:0.8 initialSpringVelocity:18 options:UIViewAnimationOptionCurveEaseInOut animations:^{
        self.imageView.center = self.view.center;
    } completion:^(BOOL finished) {
        
    }];   
    
}