详解iOS开发中的转场动画和组动画以及UIView封装动画

#import "YYViewController.h"

@interface YYViewController ()
@property(nonatomic,assign) int index;
@property (weak, nonatomic) IBOutlet UIImageView *iconView;

- (IBAction)preOnClick:(UIButton *)sender;
- (IBAction)nextOnClick:(UIButton *)sender;

@end

@implementation YYViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.index=1;

}

- (IBAction)preOnClick:(UIButton *)sender {
    self.index--;
    if (self.index<1) {
        self.index=7;
    }
    self.iconView.image=[UIImage imageNamed: [NSString stringWithFormat:@"%d.jpg",self.index]];
   
    //创建核心动画
    CATransition *ca=[CATransition animation];
    //告诉要;执行什么动画
    //设置过度效果
    ca.type=@"cube";
    //设置动画的过度方向（向左）
    ca.subtype=kCATransitionFromLeft
    //设置动画的时间
    ca.duration=2.0;
    //添加动画
    [self.iconView.layer addAnimation:ca forKey:nil];
}

//下一张
- (IBAction)nextOnClick:(UIButton *)sender {
    self.index++;
    if (self.index>7) {
        self.index=1;
    }
        self.iconView.image=[UIImage imageNamed: [NSString stringWithFormat:@"%d.jpg",self.index]];
   
    //1.创建核心动画
    CATransition *ca=[CATransition animation];
   
    //1.1告诉要执行什么动画
    //1.2设置过度效果
    ca.type=@"cube";
    //1.3设置动画的过度方向（向右）
    ca.subtype=kCATransitionFromRight;
    //1.4设置动画的时间
    ca.duration=2.0;
    //1.5设置动画的起点
    ca.startProgress=0.5;
    //1.6设置动画的终点
//    ca.endProgress=0.5;
   
    //2.添加动画
    [self.iconView.layer addAnimation:ca forKey:nil];
}
@end

@interface YYViewController ()
@property (weak, nonatomic) IBOutlet UIView *iconView;

@end

@implementation NJViewController

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
   
    // 平移动画
    CABasicAnimation *a1 = [CABasicAnimation animation];
    a1.keyPath = @"transform.translation.y";
    a1.toValue = @(100);
    // 缩放动画
    CABasicAnimation *a2 = [CABasicAnimation animation];
    a2.keyPath = @"transform.scale";
    a2.toValue = @(0.0);
    // 旋转动画
    CABasicAnimation *a3 = [CABasicAnimation animation];
    a3.keyPath = @"transform.rotation";
    a3.toValue = @(M_PI_2);
   
    // 组动画
    CAAnimationGroup *groupAnima = [CAAnimationGroup animation];
   
    groupAnima.animatiOns= @[a1, a2, a3];
   
    //设置组动画的时间
    groupAnima.duration = 2;
    groupAnima.fillMode = kCAFillModeForwards;
    groupAnima.removedOnCompletion= NO;
   
    [self.iconView.layer addAnimation:groupAnima forKey:nil];
}

@end

#import "YYViewController.h"

@interface YYViewController ()
@property (weak, nonatomic) IBOutlet UIView *customView;

@end

- (void)viewDidLoad
{
    [super viewDidLoad];
   
}

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    //打印动画块的位置
    NSLog(@"动画执行之前的位置：%@",NSStringFromCGPoint(self.customView.center));
   
    //首尾式动画
    [UIView beginAnimations:nil context:nil];
    //执行动画
    //设置动画执行时间
    [UIView setAnimationDuration:2.0];
    //设置代理
    [UIView setAnimationDelegate:self];
    //设置动画执行完毕调用的事件
    [UIView setAnimationDidStopSelector:@selector(didStopAnimation)];
    self.customView.center=CGPointMake(200, 300);
    [UIView commitAnimations];

}

-(void)didStopAnimation
{
    NSLog(@"动画执行完毕");
    //打印动画块的位置
    NSLog(@"动画执行之后的位置：%@",NSStringFromCGPoint(self.customView.center));
}
@end

#import "YYViewController.h"

@interface YYViewController ()
@property (weak, nonatomic) IBOutlet UIView *customView;

@end

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
   //1.创建核心动画
    CABasicAnimation *anima=[CABasicAnimation animation];
    //平移
    anima.keyPath=@"position";
    //设置执行的动画
    anima.toValue=[NSValue valueWithCGPoint:CGPointMake(200, 300)];
   
    //设置执行动画的时间
    anima.duration=2.0;
    //设置动画执行完毕之后不删除动画
    anima.removedOnCompletion=NO;
    //设置保存动画的最新状态
    anima.fillMode=kCAFillModeForwards;
//    anima.fillMode=kCAFillModeBackwards;
   
    //设置动画的代理
    anima.delegate=self;
   
    //2.添加核心动画
    [self.customView.layer addAnimation:anima forKey:nil];
}

-(void)animationDidStart:(CAAnimation *)anim
{
    //打印动画块的位置
//    NSLog(@"动画开始执行前的位置：%@",NSStringFromCGPoint(self.customView.center));
    NSLog(@"动画开始执行前的位置：%@",NSStringFromCGPoint( self.customView.layer.position));
}
-(void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag
{
    //打印动画块的位置
    NSLog(@"动画执行完毕后的位置：%@",NSStringFromCGPoint( self.customView.layer.position));
}

@end

[fromView.superview addSubview:toView];

// 把fromView从父视图中移除

[fromView.superview removeFromSuperview];

@interface YYViewController ()
@property (weak, nonatomic) IBOutlet UIView *customView;

@end

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    //block代码块动画
        [UIView transitionWithView:self.customView duration:3.0 options:0 animations:^{
            //执行的动画
            NSLog(@"动画开始执行前的位置：%@",NSStringFromCGPoint(self.customView.center));
            self.customView.center=CGPointMake(200, 300);
        } completion:^(BOOL finished) {
            //动画执行完毕后的首位操作
            NSLog(@"动画执行完毕");
            NSLog(@"动画执行完毕后的位置：%@",NSStringFromCGPoint( self.customView.center));
        }];
}
@end

UIActivityIndicatorViewStyleWhite      //标准尺寸白色指示器   

UIActivityIndicatorViewStyleGray    //灰色指示器，用于白色背景