【读书笔记】iOS-截屏功能的实现。

#import "ViewController.h"
#import <QuartzCore/QuartzCore.h>

@interface ViewController () @end

@implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib.
 } #pragma -mark -doClickActions
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [self screenShot]; } #pragma -mark -functions
//截屏功能
-(void) screenShot { UIGraphicsBeginImageContext(self.view.bounds.size); [self.view.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage *image= UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); NSLog(@"image:%@",image); UIImageView *imaView = [[UIImageView alloc] initWithImage:image]; imaView.frame = CGRectMake(0, 700, 500, 500); [self.view addSubview:imaView]; UIImageWriteToSavedPhotosAlbum(image, self, nil, nil); }