@interface MJViewController ()
- (IBAction)previous;
- (IBAction)next;
@property (weak, nonatomic) IBOutlet UIImageView *iconView;
/**
* 当前图片的索引
*/
@property (nonatomic, assign) int index;
@end
@implementation MJViewController
- (IBAction)previous {
self.index--;
if (self.index == -1) {
self.index = 8;
}
NSString *filename = [NSString stringWithFormat:@"%d.jpg", self.index + 1];
self.iconView.image = [UIImage imageNamed:filename];
CATransition *anim = [CATransition animation];
// anim.type = @"cube";
// anim.subtype = kCATransitionFromLeft;
anim.type = @"pageUnCurl";
anim.duration = 0.5;
[self.view.layer addAnimation:anim forKey:nil];
}
- (IBAction)next {
self.index++;
if (self.index == 9) {
self.index = 0;
}
NSString *filename = [NSString stringWithFormat:@"%d.jpg", self.index + 1];
self.iconView.image = [UIImage imageNamed:filename];
// 转场动画
CATransition *anim = [CATransition animation];
anim.type = @"pageCurl";
// anim.subtype = kCATransitionFromRight;
anim.duration = 0.5;
// anim.startProgress = 0.0;
//
// anim.endProgress = 0.5;
[self.view.layer addAnimation:anim forKey:nil];
}