IOS开发：动画1

#import "ViewController.h"@interface ViewController ()@property (weak, nonatomic) IBOutlet UIView *currentView;@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.}/*语法形式: [UIView beginAnimations:@“动画的名字 “ context:nil]; …….. [UIView commitAnimations]; *///首尾动画- (IBAction)beginAndEndAnmation:(UIButton *)sender {        [UIView beginAnimations:@"第一个动画" context:nil];        //是否根据最新的状态开始动画    [UIView setAnimationBeginsFromCurrentState:YES];        //设置延迟几秒开始动画//    [UIView setAnimationDelay:1.0];        //动画执行时间    [UIView setAnimationDuration:2.0];        //设置动画翻转    [UIView setAnimationRepeatAutoreverses:YES];    //设置翻转次数    [UIView setAnimationRepeatCount:2];    //要执行动画开始和结束方法，一定要设置代理    [UIView setAnimationDelegate:self];        //动画结束执行方法    [UIView setAnimationDidStopSelector:@selector(endAction)];    //动画开始执行方法    [UIView setAnimationWillStartSelector:@selector(startAction)];        //拿到view的中心点    CGPoint point = self.currentView.center;        //让view向下移动50    point.y += 50;    self.currentView.center = point;        //旋转    self.currentView.transform = CGAffineTransformRotate(self.currentView.transform, M_PI);        //放缩    self.currentView.transform = CGAffineTransformScale(self.currentView.transform, 0.5, 0.5);        [UIView commitAnimations];    }//结束时执行-(void)endAction{    NSLog(@"end");}//开始时执行-(void)startAction{    NSLog(@"start");}//block动画块- (IBAction)blockAnimation:(UIButton *)sender {        //block动画1//    [UIView animateWithDuration:2.0f animations:^{//        //拿到view的中心点//        CGPoint point = self.currentView.center;//        //        //让view向下移动50//        point.y += 50;//        self.currentView.center = point;////    }];        //block动画2//    [UIView animateWithDuration:2.0f animations:^{//        //拿到view的中心点//        CGPoint point = self.currentView.center;//        //        //让view向下移动50//        point.y += 50;//        self.currentView.center = point;//    } completion:^(BOOL finished) {//        [UIView animateWithDuration:2.0f animations:^{//            //拿到view的中心点//            CGPoint point = self.currentView.center;////            //让view向下移动50//            point.y -= 50;//            self.currentView.center = point;////        }];//    }];            //block动画3//    [UIView animateKeyframesWithDuration:2.0f delay:1.0f options:UIViewKeyframeAnimationOptionRepeat animations:^{//        //拿到view的中心点//        CGPoint point = self.currentView.center;////        //让view向下移动50//        point.y -= 50;//        self.currentView.center = point;//        //    } completion:^(BOOL finished) {//        NSLog(@"123");//    }];        //第一个参数 弹簧动画效果(0-1)    //第四个参数 动画起始速度    [UIView animateWithDuration:2.0f delay:1.0f usingSpringWithDamping:0.01 initialSpringVelocity:5.0f options:UIViewAnimationOptionRepeat animations:^{        //拿到view的中心点        CGPoint point = self.currentView.center;        //让view向下移动50        point.y += 50;        self.currentView.center = point;    } completion:^(BOOL finished) {            }];    }//转场动画- (IBAction)translationAnimation:(UIButton *)sender {    //    [UIView transitionWithView:self.currentView duration:3 options:UIViewAnimationOptionRepeat animations:^{//        //拿到view的中心点//        CGPoint point = self.currentView.center;//        //        //让view向下移动50//        point.y += 50;//        self.currentView.center = point;////    } completion:^(BOOL finished) {//        //    }];            UIView * view = [[UIView alloc]init];    view.backgroundColor = [UIColor yellowColor];    view.frame = CGRectMake(0, 0, 100, 100);    [self.view addSubview:view];        //转场后 self.currentView 从父视图移除 toView显示    [UIView transitionFromView:self.currentView toView:view duration:2.0f options:UIViewAnimationOptionTransitionFlipFromRight completion:^(BOOL finished) {            }];    }- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end