问题描述

点击按钮实现email附加捕捉图片

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~

解决方案

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];