iOS中动画(一)——UIView的动画

川长思鸟来 2022-08-26 13:29 174阅读 0赞

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