p.p1 { margin: 0.0px 0.0px 0.0px 0.0px; font: 18.0px Menlo; color: #3c828c }
p.p2 { margin: 0.0px 0.0px 0.0px 0.0px; font: 18.0px Menlo; color: #c32275 }
p.p3 { margin: 0.0px 0.0px 0.0px 0.0px; font: 18.0px Menlo; min-height: 21.0px }
p.p4 { margin: 0.0px 0.0px 0.0px 0.0px; font: 18.0px Menlo }
p.p5 { margin: 0.0px 0.0px 0.0px 0.0px; font: 18.0px Menlo; color: #3d1d81 }
p.p6 { margin: 0.0px 0.0px 0.0px 0.0px; font: 18.0px Menlo; color: #1d9421 }
p.p7 { margin: 0.0px 0.0px 0.0px 0.0px; font: 18.0px "PingFang SC"; color: #1d9421 }
p.p8 { margin: 0.0px 0.0px 0.0px 0.0px; font: 18.0px Menlo; color: #539aa4 }
span.s1 { color: #c32275 }
span.s2 { color: #000000 }
span.s3 { }
span.s4 { color: #6122ae }
span.s5 { color: #0435ff }
span.s6 { color: #703daa }
span.s7 { color: #3d1d81 }
span.s8 { color: #c91b13 }
span.s9 { font: 18.0px "PingFang SC"; color: #c91b13 }
span.s10 { font: 18.0px Menlo; color: #000000 }
span.s11 { font: 18.0px Menlo }
span.s12 { color: #539aa4 }
@interface ViewController ()
@property (nonatomic,strong)UIImageView *topImageView;
@property(nonatomic,strong)UIImageView *bottomImageView;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
UILabel *label=[[UILabel alloc]initWithFrame:CGRectMake(100, 300, 100, 30)];
label.textColor=[UIColor redColor];
label.textAlignment=NSTextAlignmentCenter;
label.text=@"你看到我了" ;
[self.view addSubview:label];
UIImage *imageTop=[UIImage imageNamed:@"1111.jpg"];
//根据创建的image 进行区域裁剪（关键代码）
CGImageRef refTopImg=CGImageCreateWithImageInRect(imageTop.CGImage, CGRectMake(0, 0, imageTop.size.width, imageTop.size.height/2));
_topImageView=[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 375, 667/2)];
_topImageView.image=[UIImage imageWithCGImage:refTopImg];
[self.view addSubview:_topImageView];
CGImageRef refBottomImg=CGImageCreateWithImageInRect(imageTop.CGImage, CGRectMake(0, imageTop.size.height/2, imageTop.size.width, imageTop.size.height/2));
_bottomImageView=[[UIImageView alloc]initWithFrame:CGRectMake(0, 667/2, 375, 667/2)];
_bottomImageView.image=[UIImage imageWithCGImage:refBottomImg];
[self.view addSubview:_bottomImageView];
}
-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
[UIView animateWithDuration:1 animations:^{
_topImageView.frame=CGRectMake(0, -667/2, 375, 667/2);
_bottomImageView.frame=CGRectMake(0, 667, 375, 667/2);
}];
}