应用内截图并附加到电子邮件，无需保存到库中 [英] in-app Screenshot and attach to email without saving into library

问题描述

我想知道如果我想让我的应用程序能够通过按下 UI 按钮来截取屏幕截图并立即弹出并通过邮件撰写和通过电子邮件发送屏幕截图而不将其保存到照片库中，我应该使用什么代码?

I would like to know what code should i use if i want to make my app able to take a screenshot of the screen by pressing a UIbutton and immediately pop up and Mail compose and email out the screenshot without saving it into photo library?

非常感谢！

推荐答案

你需要在你的项目中添加两个框架 - QuartzCore 和 MessageUI 然后执行 #import 和 #import .

You will need to add two frameworks to your project - QuartzCore and MessageUI and then do #import <QuartzCore/QuartzCore.h> and #import <MessageUI/MessageUI.h>.

你的按钮按下代码应该是这样的，

Your button press code should be like,

- (void)buttonPress:(id)sender
{
    UIGraphicsBeginImageContext(self.view.frame.size);
    [self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage * image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    NSData * imageData = UIImageJPEGRepresentation(image, 1.0);

    if ( [MFMailComposeViewController canSendMail] ) {
        MFMailComposeViewController * mailComposer = [[[MFMailComposeViewController alloc] init] autorelease];
        mailComposer.delegate = self;
        [mailComposer addAttachmentData:imageData mimeType:@"image/jpeg" fileName:@"attachment.jpg"];

        /* Configure other settings */

        [self presentModalViewController:mailComposer animated:YES];
    }
}

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