Question

我可以让我的应用截取视图内容的屏幕截图并将其附加到电子邮件中吗？怎么样？

Answer 1

您可以将视图转换为图片，然后您可以使用它创建电子邮件。

此代码（from here）允许您发送带附件的电子邮件：

    - (void)emailImageWithImageData:(NSData *)data
    {
      MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
      picker.mailComposeDelegate = self;

      // Set the subject of email
      [picker setSubject:@"Picture from my iPhone!"];

      // Add email addresses
      // Notice three sections: "to" "cc" and "bcc" 
      [picker setToRecipients:[NSArray arrayWithObjects:@"emailaddress1@domainName.com", @"emailaddress2@domainName.com", nil]];
      [picker setCcRecipients:[NSArray arrayWithObject:@"emailaddress3@domainName.com"]];   
      [picker setBccRecipients:[NSArray arrayWithObject:@"emailaddress4@domainName.com"]];

      //    Fill out the email body text
      NSString *emailBody = @"I just took this picture, check it out.";

      // This is not an HTML formatted email
      [picker setMessageBody:emailBody isHTML:NO];

      // Attach image data to the email
      // 'CameraImage.png' is the file name that will be attached to the email
      [picker addAttachmentData:data mimeType:@"image/png" fileName:@"CameraImage"];

      // Show email view    
      [self presentModalViewController:picker animated:YES];
      //if you have a navigation controller: use that to present, else the user will not
      //be able to tap the send/cancel buttons
      //[self.navigationController presentModalViewController:picker animated:YES];


      // Release picker
      [picker release];
    }

    - (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error 
     {
       // Called once the email is sent
       // Remove the email view controller  
       [self dismissModalViewControllerAnimated:YES];
     }

要将视图图形表示转换为图像，请使用代码（from here）：

UIGraphicsBeginImageContext(self.window.bounds.size);
[self.window.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
NSData * data = UIImagePNGRepresentation(image);

[self emailImageWithImageData:data];

Answer 2

来自this site：

 // CREATING MAIL VIEW
 MFMailComposeViewController *controller = [[MFMailComposeViewController alloc] init];
 controller.mailComposeDelegate = self;
 [controller setSubject:@"Check this route out"];
 [controller setMessageBody:@"Attaching a shot of covered route." isHTML:NO];

 // MAKING A SCREENSHOT
 UIGraphicsBeginImageContext(_mapView.frame.size);
 [_mapView.layer renderInContext:UIGraphicsGetCurrentContext()];
 UIImage *screenshot = UIGraphicsGetImageFromCurrentImageContext();
 UIGraphicsEndImageContext();

 // ATTACHING A SCREENSHOT
 NSData *myData = UIImagePNGRepresentation(screenshot);
 [controller addAttachmentData:myData mimeType:@"image/png" fileName:@"route"]; 

 // SHOWING MAIL VIEW
 [self presentModalViewController:controller animated:YES];
 [controller release];

Answer 3

是的，您可以查看以下代码可能会对您有所帮助

UIGraphicsBeginImageContext(self.view.bounds.size);
[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage* image = [GMSScreenshot screenshotOfMainScreen];
UIGraphicsEndImageContext();
data = UIImagePNGRepresentation(image);
[picker addAttachmentData:data mimeType:@"image/jpg" fileName:@"Screenshot"];

Answer 4

这是一个教程。你可以在github上找到wwll的源代码。

Take Screen-shot of Current View and Attach it to Mail

希望它有所帮助。

Answer 5

尝试这种方式

将此邮件代码放入Action

中

if([MFMailComposeViewController canSendMail]){


  MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
  picker.mailComposeDelegate = self;
  [picker setSubject:@"Test Screen Shot From app"];
  [picker addAttachmentData: UIImagePNGRepresentation([self screenshot]) mimeType:@"image/png" fileName:@"CameraImage.png"];

  [self presentViewController:picker animated:YES completion:nil];

}

这是截图方法

- (UIImage *) screenshot {
  UIGraphicsBeginImageContextWithOptions(self.view.bounds.size, NO, [UIScreen mainScreen].scale);

  [self.view drawViewHierarchyInRect:self.view.bounds afterScreenUpdates:YES];

  UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
  UIGraphicsEndImageContext();
  return image;
}

跑步和去！

N.B.Don忘记导入标题#import <MessageUI/MFMailComposeViewController.h>

如何拍摄视图的屏幕截图并通过电子邮件发送给它？

5 个答案: