Question

在我的申请中，我必须向客户的电子邮件发送反馈。

这是我的代码，

-(void) send:(id) sender {
    [self sendEmailTo:[txtTo text] withSubject:[txtSubject text] withBody:[txtBody text]];
}

-(void) sendEmailTo:(NSString *)to withSubject:(NSString *) subject withBody:(NSString*)body {
    NSString *mailString = [NSString stringWithFormat:@"mailto:?to=%@&subject=%@body=%@",
    [to stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding],
    [subject stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding],
    [body stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding]];

    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:mailString]];
}

但这不起作用。是否需要任何类型的SMTP设置或其他？我尝试了Apple的MailComposer示例，但它也不起作用。

请帮帮我。

Answer 1

我已发布此here，但为了不再点击此处，它是：

您需要将MessageUI.framework包含到项目中，并且在头文件中需要设置委托：

#import <MessageUI/MessageUI.h>
@interface RootViewController : UIViewController <MFMailComposeViewControllerDelegate> {
    MFMailComposeViewController *email;
}

@property (nonatomic, retain) MFMailComposeViewController *email;

一旦你这样做，你需要在你的实现文件中包含一些委托方法（你应该检查结果，但我试图保留尽可能少的代码）：

@synthesize email;

- (void) mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error {
    [email dismissModalViewControllerAnimated:YES];
}

无论您想在何处使用此功能，都需要进行初始化并将其设置为：

email = [[MFMailComposeViewController alloc] init];
email.mailComposeDelegate = self;

// Subject
[email setSubject:@"Testing"];

// Optional Attachments
NSData *artwork = UIImagePNGRepresentation([UIImage imageNamed:@"albumart.png"]);
[email addAttachmentData:artwork mimeType:@"image/png" fileName:@"albumart.png"];

// Body
[email setMessageBody:@"This is the body"];

// Present it
[self presentModalViewController:email animated:YES];

Answer 2

尝试使用不同的格式：

NSString *mailString = [NSString stringWithFormat:@"mailto:%@?subject=%@&body=%@",
     [to stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding],
     [subject stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding],
     [body stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding]];

在iPhone中发送电子邮件

2 个答案: