点击按钮实现email附加捕捉图片

Question

iphone应用中，捕捉图片使用UIImagePickerController：

    - (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
    self.myImageView.image = image;  
    //    [self performSelector:@selector(emailButtonPressed:) withObject:image afterDelay:1.0];
     [self dismissModalViewControllerAnimated:YES];  
}

其中emailButtonPressed方法由self调用。我希望可以按钮动作调用这个，因此写了下面的代码emailButtonPressed。

- (void)emailButtonPressed:(UIImage *)image
{  
        MFMailComposeViewController *mailview=[[MFMailComposeViewController alloc]init];      mailview.navigationBar.tintColor=[UIColor colorWithRed:55/255.0 green:190/255.0 blue:55/255.0 alpha:1];  
        mailview.mailComposeDelegate=self;  
        // NSMutableString *subject=[NSMutableString stringWithFormat:@"%@",@"Testing"];  
        [mailview setSubject:@"Picture from my iPhone!"];  
        //   NSString *email_new=@"";  
        [mailview setMessageBody:@"Description" isHTML:NO];  

        NSData *imageData = UIImagePNGRepresentation(image);  

        [mailview addAttachmentData:imageData mimeType:@"image/png" fileName:@"ImageName"];  
        [self presentModalViewController:mailview animated:YES];  
}

请多指教，谢谢~

Answer 1

修改emailButtonPressed 方法：

• (void)emailButtonPressed //removed the param
  {
  
  UIImage *image = self.myimageview.image; //or set some other param as image = self.image; whichever you set in picker delegate method
  MFMailComposeViewController *mailview=[[MFMailComposeViewController alloc]init]; mailview.navigationBar.tintColor=[UIColor colorWithRed:55/255.0 green:190/255.0 blue:55/255.0 alpha:1];
  
  mailview.mailComposeDelegate=self;
  
  // NSMutableString *subject=[NSMutableString stringWithFormat:@"%@",@"Testing"];
  
  [mailview setSubject:@"Picture from my iPhone!"];
  
  // NSString *email_new=@"";
  
  [mailview setMessageBody:@"Description" isHTML:NO];

  NSData *imageData = UIImagePNGRepresentation(image);  
  
  [mailview addAttachmentData:imageData mimeType:@"image/png" fileName:@"ImageName"];  
  [self presentModalViewController:mailview animated:YES];  
  

  }
  然后：

  • (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; self.myImageView.image = image; //instead of this, you can create an @property for image in .h file and assign to that also here. [self dismissModalViewControllerAnimated:YES];
    }

如果已经声明了emailbutton：

UIButton *emailbutton = [UIButton buttonWithType:UIButtonTypeRoundedRect];

然后添加：

[emailbutton addTarget:self action:@selector(emailButtonPressed) forControlEvents:UIControlEventTouchUpInside];