截取UIView中圖片,截取UIView圖片

來源:互聯網
上載者:User

截取UIView中圖片,截取UIView圖片

代碼:

- (void)viewDidLoad{    [super viewDidLoad];    // Do any additional setup after loading the view.        //UIView    UIView *view=[[UIView alloc]initWithFrame:CGRectMake(50, 100, 200, 50)];    view.backgroundColor=[UIColor redColor];    [self.view addSubview:view];        //在UIImageView中顯示截取的圖片    UIImageView *imageView=[[UIImageView alloc]initWithFrame:CGRectMake(50, 200, 200, 100)];    imageView.image=[self screenShotView:view];    [self.view addSubview:imageView];}// 對指定視圖進行- (UIImage *)screenShotView:(UIView *)view{    UIImage *imageRet = nil;        if (view)    {        if(UIGraphicsBeginImageContextWithOptions != NULL)        {            UIGraphicsBeginImageContextWithOptions(view.frame.size, NO, 0.0);        }        else        {            UIGraphicsBeginImageContext(view.frame.size);        }                //擷取映像        [view.layer renderInContext:UIGraphicsGetCurrentContext()];        imageRet = UIGraphicsGetImageFromCurrentImageContext();        UIGraphicsEndImageContext();    }else{    }        return imageRet;}

 

相關文章

聯繫我們

該頁面正文內容均來源於網絡整理,並不代表阿里雲官方的觀點,該頁面所提到的產品和服務也與阿里云無關,如果該頁面內容對您造成了困擾,歡迎寫郵件給我們,收到郵件我們將在5個工作日內處理。

如果您發現本社區中有涉嫌抄襲的內容,歡迎發送郵件至: info-contact@alibabacloud.com 進行舉報並提供相關證據,工作人員會在 5 個工作天內聯絡您,一經查實,本站將立刻刪除涉嫌侵權內容。

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.