从应用程序和电子邮件中检索保存的图像
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【中文标题】从应用程序和电子邮件中检索保存的图像【英文标题】：Retrieve saved image from app and email 【发布时间】：2011-05-17 01:05:22 【问题描述】：用户拍照后，我成功地将图像保存到我的应用程序中。我稍后要做的是，当用户返回应用程序时，我希望他们能够将照片作为附件通过电子邮件发送。我没有任何运气将应用程序中的数据转换为图像，因此我可以将其添加为附件。有人可以指出我正确的方向吗？这是他们拍照后我保存图像的地方。
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info
//here is the image returned
app.aImage2 = [info objectForKey:UIImagePickerControllerOriginalImage];
NSData *imageData = UIImagePNGRepresentation( app.aImage2 );
NSString * savedImageName = [NSString stringWithFormat:@"r%@aImage2.png",app.reportNumber];
NSArray * paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString * documentsDirectory = [paths objectAtIndex:0];
NSString * dataFilePath;
dataFilePath = [documentsDirectory stringByAppendingPathComponent:savedImageName];
[imageData writeToFile:dataFilePath atomically:YES];
[self dismissModalViewControllerAnimated:YES];
这里是我需要附加它的地方。
//this is inside my method that creates an email composer view
MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
picker.mailComposeDelegate = self; // <- very important step if you want feedbacks on what the user did with your email sheet
//how would i attach the saved image from above?
【问题讨论】：
【参考方案1】：这包括 Mike 在此处提到的代码：
How to add a UIImage in MailComposer Sheet of MFMailComposeViewController
此外，其他部分来自 Sagar Kothari 的回答：
Sending out html email with IMG tag from an iPhone App using MFMailComposeViewController class
- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info
// Dismiss image picker modal.
[picker dismissModalViewControllerAnimated:YES];
if ([MFMailComposeViewController canSendMail])
// Create a string with HTML formatting for the email body.
NSMutableString *emailBody = [[NSMutableString alloc] initWithString:@"<html><body>"];
// Add some text to it.
[emailBody appendString:@"<p>Body text goes here.</p>"];
// You could repeat here with more text or images, otherwise
// close the HTML formatting.
[emailBody appendString:@"</body></html>"];
NSLog(@"%@", emailBody);
// Create the mail composer window.
MFMailComposeViewController *emailDialog = [[MFMailComposeViewController alloc] init];
emailDialog.mailComposeDelegate = self;
// Image to insert.
UIImage *emailImage = [info objectForKey:UIImagePickerControllerOriginalImage];
if (emailImage != nil)
NSData *data = UIImagePNGRepresentation(emailImage);
[emailDialog addAttachmentData:data mimeType:@"image/png" fileName:@"filename_goes_here.png"];
[emailDialog setSubject:@"Subject goes here."];
[emailDialog setMessageBody:emailBody isHTML:YES];
[self presentModalViewController:emailDialog animated:YES];
[emailDialog release];
[emailBody release];
【讨论】：
还没有机会测试此代码，但这应该会引导您朝着正确的方向前进。不太确定您的“app.aImage2”是什么（我假设它是您在某处声明的 UIImage ivar）。 是的，抱歉忘记在我的应用程序委托中添加“app.aImage2”是一个全局 UIImage。这行得通！很明显，我必须对其进行一些编辑，但谢谢！ 这段代码的大部分似乎是基于 Mike 在此处提供的代码：***.com/questions/1527351/…，因此最好给出适当的引用。 另外，其他部分来自 Sagar Kothari 的回答：***.com/questions/3289195/…以上是关于从应用程序和电子邮件中检索保存的图像的主要内容，如果未能解决你的问题，请参考以下文章