////  UIImage+Tools.h//  截屏////  Created by YaguangZhu on 15/9/10.//  Copyright (c) 2015年 YaguangZhu. All rights reserved.//#import 
     
      @interface UIImage (Tools)+(instancetype)imageWithCaptureView:(UIView *)view;@end////  UIImage+Tools.m//  截屏////  Created by YaguangZhu on 15/9/10.//  Copyright (c) 2015年 YaguangZhu. All rights reserved.//#import "UIImage+Tools.h"@implementation UIImage (Tools)+ (instancetype)imageWithCaptureView:(UIView *)view{    UIGraphicsBeginImageContextWithOptions(view.bounds.size, NO, 0.0);    CGContextRef ctx = UIGraphicsGetCurrentContext();    [view.layer renderInContext:ctx];        UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();        UIGraphicsEndImageContext();        return newImage;}@end
     

////  ViewController.m//  截屏////  Created by YaguangZhu on 15/9/10.//  Copyright (c) 2015年 YaguangZhu. All rights reserved.//#import "ViewController.h"#import "UIImage+Tools.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.    UIImage *newImage = [UIImage imageWithCaptureView:self.view];    NSData *data = UIImagePNGRepresentation(newImage);        [data writeToFile:@"/Users/yaguangzhu/Desktop/00d1.png" atomically:YES];    }- (void)CaptureView{    UIGraphicsBeginImageContextWithOptions(self.view.bounds.size, NO, 0.0);    CGContextRef ctx = UIGraphicsGetCurrentContext();    [self.view.layer renderInContext:ctx];        UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();        UIGraphicsEndImageContext();    NSData *data = UIImagePNGRepresentation(newImage);        [data writeToFile:@"/Users/yaguangzhu/Desktop/00d1.png" atomically:YES];}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end