iOS中动画(一)——UIView的动画

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iOS中UIView的动画

ViewController1.h

#import <UIKit/UIKit.h>@interface ViewController1 : UIViewController@property(nonatomic,retain)UIView* view1;@end

ViewController1.m

#import "ViewController1.h"@interface ViewController1 ()@end@implementation ViewController1- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];    if (self) {        // Custom initialization    }    return self;}- (void)viewDidLoad{    [super viewDidLoad];// Do any additional setup after loading the view.           _view1 = [[UIView alloc]init];    _view1.frame = CGRectMake(0, 44, 160, 200);    _view1.backgroundColor = [UIColor redColor];    [self.view addSubview:_view1];                //过度动画的效果，是2个View的切换    UIButton* button2 = [[UIButton alloc]initWithFrame:CGRectMake(20, 340, 150, 30)];    [button2 addTarget:self action:@selector(button2) forControlEvents:UIControlEventTouchUpInside];    [button2 setTitle:@"开始动画" forState:UIControlStateNormal];    button2.backgroundColor = [UIColor redColor];    [self.view addSubview:button2];}-(void)button2{    // 1 传统方法    //开始动画    /*[UIView beginAnimations:@"testanimation" context:nil];    [UIView setAnimationDuration:0.5];    //动画的代理    [UIView setAnimationDelegate:self];    //动画的响应事件,使视图自动回到原来的位置    [UIView setAnimationDidStopSelector:@selector(animationstop)];    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];    //获得视图的位置    CGRect frames = self.view1.frame;    //将坐标移到右边160处    frames.origin.x = 160;    self.view1.frame = frames;    [UIView commitAnimations];*/        // 2 用block语法实现    [UIView animateWithDuration:0.5 animations:^{        CGRect frames = self.view1.frame;        frames.origin.x = 160;        self.view1.frame = frames;        //缩放        self.view1.transform = CGAffineTransformScale(self.view1.transform, 0.01, 0.01);    }completion:^(BOOL finished) {        CGRect frames = self.view1.frame;        frames.origin.x = 0;        self.view1.frame = frames;        //恢复到原始的缩放        self.view1.transform = CGAffineTransformIdentity;    }];        }-(void)animationstop{    //传统方法    [UIView beginAnimations:nil context:nil];    [UIView setAnimationDuration:0.5];    CGRect frames = self.view1.frame;    frames.origin.x = 0;    self.view1.frame = frames;    [UIView commitAnimations];}- (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end

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