先看效果：

下面贴代码：

#import "ViewController.h" @interface ViewController () @property (weak, nonatomic) IBOutlet UIImageView *backgroundView; @property (strong,nonatomic) NSArray *array; @end @implementation ViewController -(NSArray *)array { if (_array == nil) { UIImage *image1 = [UIImage imageNamed:@"01.jpg"]; UIImage *image2 = [UIImage imageNamed:@"02.jpg"]; _array = @[image1,image2]; } return _array; } - (void)viewDidLoad { [super viewDidLoad]; self.backgroundView.image = self.array[0]; // Do any additional setup after loading the view, typically from a nib. } -(void)changeImage { if (self.backgroundView.image == self.array[0]) { self.backgroundView.image = self.array[1]; }else { self.backgroundView.image = self.array[0]; } } - (IBAction)pushClick:(id)sender { [self changeImage]; CATransition *transtion = [[CATransition alloc] init]; transtion.type = @"push"; transtion.subtype = kCATransitionFromBottom; transtion.startProgress = 0.5; transtion.endProgress = 0.8; [self.view.layer addAnimation:transtion forKey:nil]; } /* 效果有好多种，上面代码只贴出了其中一种，如果需要其他效果，只需要将 transtion.type = @"push";中的type改一下就行。 比如： transtion.type = @"fade"; type的类型还有以下几种： fade，reveal，moveIn，cube，suckEffect，oglFlip，rippleEffect，pageCurl，pageCurl，cameraIrisHollowOpen，cameraIrisHollowClose，pageUnCurl，pageCurl，pageCurl，pageCurl */ - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. }

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