屏幕截屏 iOS

创建category文件

.h

#import <UIKit/UIKit.h>

@interface UIView (ImageScreenShot)
-(UIImage*)imageScreenShot;
@end

.m

#import "UIView+ImageScreenShot.h"

@implementation UIView (ImageScreenShot)
-(UIImage*)imageScreenShot{
    
    UIGraphicsBeginImageContext(self.frame.size);
    
    [self.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *imageNew =UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return imageNew;
}
@end

在ViewController中

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    [self imageScreenShot];
    
}



-(void)imageScreenShot{
    
    UIImage *imageNew =[self.view imageScreenShot];
    UIImageWriteToSavedPhotosAlbum(imageNew, nil, nil, nil);
}



@end