ios——图片、界面切换效果

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.
}
#import "ViewControll