IOS 开发之UIView动画的实例详解

// // ViewController.m // Graphics // // Created by aaron on 14b-5-29. // Copyright (c) 2014年 The Technology Studio. All rights reserved. //  #import "ViewController.h"  @interface ViewController () @property(nonatomic,strong) UIImageView *imageView1; @property(nonatomic,strong) UIImageView *imageView2;  @end  @implementation ViewController  - (void)viewDidLoad {   [super viewDidLoad];      UIImage *image = [UIImage imageNamed:@"1.png"];   self.imageView1 = [[UIImageView alloc] initWithImage:image];   self.imageView2 = [[UIImageView alloc] initWithImage:image];   [self.imageView1 setFrame:CGRectMake(0.0f,                      0.0f,                      100.0f,                      100.0f)];      [self.imageView2 setFrame:CGRectMake(220.0f,                      350.0f,                      100.0f,                      100.0f)];   [self.view addSubview:self.imageView1];   [self.view addSubview:self.imageView2];    //  [self startTopLeftImageViewAnimation]; //  [self startBottomRightViewAnimationAfterDelay:2];   [self affineTransformScaleAnimation];   [self affineTransformRotateAnimation];    }  //imageView2 animation -(void)startTopLeftImageViewAnimation{   [self.imageView1 setFrame:CGRectMake(0.0f,                      0.0f,                      100.0f,                      100.0f)];   [self.imageView1 setAlpha:1.0f];   [UIView beginAnimations:@"imageView1Animation" context:(__bridge void*)self.imageView1];   [UIView setAnimationDuration:3.0f];   [UIView setAnimationDelegate:self];   [UIView setAnimationDidStopSelector:@selector(imageViewDidStop:finished:context:)];   [self.imageView1 setFrame:CGRectMake(220.0f, 350.0f, 100.0f, 100.0f)];   [self.imageView1 setAlpha:0.0f];   [UIView commitAnimations]; }  -(void)imageViewDidStop:(NSString*)paramAnimationID finished:(NSNumber*)paramFinished context:(void*)paramContext{   NSLog(@"AnimationID = %@/n",paramAnimationID);   UIImageView *contextImageView = (__bridge UIImageView *)(paramContext);   NSLog(@"contextImageView = %@",contextImageView);   [contextImageView removeFromSuperview]; }   //imageView2 animation -(void)startBottomRightViewAnimationAfterDelay:(CGFloat)paramDelay{   [self.imageView2 setFrame:CGRectMake(220.0f,                      350.0f,                      100.0f,                      100.0f)];   [self.imageView2 setAlpha:1.0f];   [UIView beginAnimations:@"imageView2Animation" context:(__bridge voidvoid *)(self.imageView2)];   [UIView setAnimationDuration:3.0f];   [UIView setAnimationDelay:paramDelay];   [UIView setAnimationDelegate:self];   [UIView setAnimationDidStopSelector:@selector(imageViewDidStop:finished:context:)];   [self.imageView2 setFrame:CGRectMake(0.0f, 0.0f, 100.0f, 100.0f)];   [self.imageView2 setAlpha:0.0f];   [UIView commitAnimations]; }   //imageView1 AffineTransformScale animation -(void)affineTransformScaleAnimation{   self.imageView1.center = self.view.center;   self.imageView1.transform = CGAffineTransformIdentity;   [UIView beginAnimations:nil context:NULL];   [UIView setAnimationDuration:5.0f];   self.imageView1.transform = CGAffineTransformMakeScale(2.0f, 2.0f);   [self.imageView1 setAlpha:0.0f];   [UIView commitAnimations]; }  //imageView2 AffineTransformRotate animation -(void)affineTransformRotateAnimation{   self.imageView2.center = self.view.center;   [UIView beginAnimations:@"clockwiseAnimation" context:NULL];   [UIView setAnimationDuration:5.0f];   [UIView setAnimationDelegate:self];   [UIView setAnimationDidStopSelector:@selector(clockwiseRotationStopped:finished:context:)];   self.imageView2.transform = CGAffineTransformMakeRotation(90.0f*M_PI/180.f);   [UIView commitAnimations]; }   -(void)clockwiseRotationStopped:(NSString*)paramAnimationID finished:(NSNumber*)paramFinished context:(void*)paramContext{   [UIView beginAnimations:@"counterclockwiseAnimation" context:NULL];   [UIView setAnimationDuration:5.0f];   self.imageView2.transform = CGAffineTransformIdentity;   [UIView commitAnimations]; }  @end