xcode – 应用内屏幕截图并附加到电子邮件而不保存到库中

你的按钮代码应该是,像,

- (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];
    }
}