ios - 将屏幕截图添加到电子邮件而不保存到库中

Question

我需要能够在我的应用程序中发送一封电子邮件，其中附有 iPhone 当前显示的屏幕截图。您单击一个按钮，我将带您进入附有屏幕截图的电子邮件，并且没有将图片保存到相机中。您按下的按钮应该在操作表中。我知道发送电子邮件和操作表的代码，但我需要知道如何使邮件按钮位于操作表中，包括屏幕截图。

Answer 1

UIActionSheet *options = [[UIActionSheet alloc] initWithTitle:@"Options" delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles:@"Email", nil];
[options showInView:self.view];

#pragma mark ActionSheet Delegate
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    switch (buttonIndex)
    {
        case 0:
        {

        }
        default:
            break;
    }
}

#pragma mark Email

//Allocating Memory for MailComposer
    MFMailComposeViewController *mailController = [[MFMailComposeViewController alloc] init];    

    mailController.mailComposeDelegate = self;
   UIGraphicsBeginImageContext(self.view.bounds.size);
    [self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    NSData *exportData = UIImageJPEGRepresentation(image ,1.0);
    [mailController addAttachmentData:exportData mimeType:@"image/jpeg" fileName:@"Screenshot.jpeg"];
    [self presentModalViewController:mailController animated:YES];

编辑：

#pragma mark MailComposer Delegate
-(void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error
{
    [self dismissModalViewControllerAnimated:YES];
}

记得在头文件中添加 MFMailComposeViewControllerDelegate。

希望这对您有所帮助。