我想用我的iPhone应用程序发送一封电子邮件。我听说iOS SDK没有电子邮件API。我不想使用下面的代码，因为它将退出我的应用程序:
NSString *url = [NSString stringWithString: @"mailto:foo@example.com?cc=bar@example.com&subject=Greetings%20from%20Cupertino!&body=Wish%20you%20were%20here!"];
[[UIApplication sharedApplication] openURL: [NSURL URLWithString: url]];
那么我如何从我的应用程序发送电子邮件呢?
当前回答
在ios3.0及以后的版本中，你应该使用MFMailComposeViewController类，以及隐藏在MessageUI框架中的MFMailComposeViewControllerDelegate协议。
首先添加框架并导入:
#import <MessageUI/MFMailComposeViewController.h>
然后，发送一个消息:
MFMailComposeViewController* controller = [[MFMailComposeViewController alloc] init];
controller.mailComposeDelegate = self;
[controller setSubject:@"My Subject"];
[controller setMessageBody:@"Hello there." isHTML:NO];
if (controller) [self presentModalViewController:controller animated:YES];
[controller release];
然后用户完成工作，你及时得到委托回调:
- (void)mailComposeController:(MFMailComposeViewController*)controller
didFinishWithResult:(MFMailComposeResult)result
error:(NSError*)error;
{
if (result == MFMailComposeResultSent) {
NSLog(@"It's away!");
}
[self dismissModalViewControllerAnimated:YES];
}
记得检查设备是否配置为发送电子邮件:
if ([MFMailComposeViewController canSendMail]) {
// Show the composer
} else {
// Handle the error
}
其他回答
以下是Swift版本:
import MessageUI
class YourVC: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
if MFMailComposeViewController.canSendMail() {
var emailTitle = "Vea Software Feedback"
var messageBody = "Vea Software! :) "
var toRecipents = ["pj@veasoftware.com"]
var mc:MFMailComposeViewController = MFMailComposeViewController()
mc.mailComposeDelegate = self
mc.setSubject(emailTitle)
mc.setMessageBody(messageBody, isHTML: false)
mc.setToRecipients(toRecipents)
self.presentViewController(mc, animated: true, completion: nil)
} else {
println("No email account found")
}
}
}
extension YourVC: MFMailComposeViewControllerDelegate {
func mailComposeController(controller: MFMailComposeViewController!, didFinishWithResult result: MFMailComposeResult, error: NSError!) {
switch result.value {
case MFMailComposeResultCancelled.value:
println("Mail Cancelled")
case MFMailComposeResultSaved.value:
println("Mail Saved")
case MFMailComposeResultSent.value:
println("Mail Sent")
case MFMailComposeResultFailed.value:
println("Mail Failed")
default:
break
}
self.dismissViewControllerAnimated(false, completion: nil)
}
}
源
在ios3.0及以后的版本中，你应该使用MFMailComposeViewController类，以及隐藏在MessageUI框架中的MFMailComposeViewControllerDelegate协议。
首先添加框架并导入:
#import <MessageUI/MFMailComposeViewController.h>
然后，发送一个消息:
MFMailComposeViewController* controller = [[MFMailComposeViewController alloc] init];
controller.mailComposeDelegate = self;
[controller setSubject:@"My Subject"];
[controller setMessageBody:@"Hello there." isHTML:NO];
if (controller) [self presentModalViewController:controller animated:YES];
[controller release];
然后用户完成工作，你及时得到委托回调:
- (void)mailComposeController:(MFMailComposeViewController*)controller
didFinishWithResult:(MFMailComposeResult)result
error:(NSError*)error;
{
if (result == MFMailComposeResultSent) {
NSLog(@"It's away!");
}
[self dismissModalViewControllerAnimated:YES];
}
记得检查设备是否配置为发送电子邮件:
if ([MFMailComposeViewController canSendMail]) {
// Show the composer
} else {
// Handle the error
}
下面的代码在我的应用程序中用于发送带有附件的电子邮件这里的附件是一张图片，你可以发送任何类型的文件唯一需要记住的是你必须指定正确的mimeType
将此添加到.h文件中
#import <MessageUI/MFMailComposeViewController.h>
将MessageUI.framework添加到项目文件中
NSArray *paths = SSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *getImagePath = [documentsDirectory stringByAppendingPathComponent:@"myGreenCard.png"];
MFMailComposeViewController* controller = [[MFMailComposeViewController alloc] init];
controller.mailComposeDelegate = self;
[controller setSubject:@"Green card application"];
[controller setMessageBody:@"Hi , <br/> This is my new latest designed green card." isHTML:YES];
[controller addAttachmentData:[NSData dataWithContentsOfFile:getImagePath] mimeType:@"png" fileName:@"My Green Card"];
if (controller)
[self presentModalViewController:controller animated:YES];
[controller release];
委托方法如下所示
-(void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error;
{
if (result == MFMailComposeResultSent) {
NSLog(@"It's away!");
}
[self dismissModalViewControllerAnimated:YES];
}
这是可以帮助你的代码，但不要忘记包括消息ui framewark和包括委托方法MFMailComposeViewControllerDelegate
-(void)EmailButtonACtion{
if ([MFMailComposeViewController canSendMail])
{
MFMailComposeViewController *controller = [[MFMailComposeViewController alloc] init];
controller.mailComposeDelegate = self;
[controller.navigationBar setBackgroundImage:[UIImage imageNamed:@"navigation_bg_iPhone.png"] forBarMetrics:UIBarMetricsDefault];
controller.navigationBar.tintColor = [UIColor colorWithRed:51.0/255.0 green:51.0/255.0 blue:51.0/255.0 alpha:1.0];
[controller setSubject:@""];
[controller setMessageBody:@" " isHTML:YES];
[controller setToRecipients:[NSArray arrayWithObjects:@"",nil]];
UIPasteboard *pasteboard = [UIPasteboard generalPasteboard];
UIImage *ui = resultimg.image;
pasteboard.image = ui;
NSData *imageData = [NSData dataWithData:UIImagePNGRepresentation(ui)];
[controller addAttachmentData:imageData mimeType:@"image/png" fileName:@" "];
[self presentViewController:controller animated:YES completion:NULL];
}
else{
UIAlertView *alert=[[UIAlertView alloc] initWithTitle:@"alrt" message:nil delegate:self cancelButtonTitle:@"ok" otherButtonTitles: nil] ;
[alert show];
}
}
-(void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error
{
[MailAlert show];
switch (result)
{
case MFMailComposeResultCancelled:
MailAlert.message = @"Email Cancelled";
break;
case MFMailComposeResultSaved:
MailAlert.message = @"Email Saved";
break;
case MFMailComposeResultSent:
MailAlert.message = @"Email Sent";
break;
case MFMailComposeResultFailed:
MailAlert.message = @"Email Failed";
break;
default:
MailAlert.message = @"Email Not Sent";
break;
}
[self dismissViewControllerAnimated:YES completion:NULL];
[MailAlert show];
}
斯威夫特2.0
func mailComposeController(controller: MFMailComposeViewController, didFinishWithResult result: MFMailComposeResult, error: NSError?){
if let error = error{
print("Error: \(error)")
}else{
//NO Error
//------------------------------------------------
var feedbackMsg = ""
switch result.rawValue {
case MFMailComposeResultCancelled.rawValue:
feedbackMsg = "Mail Cancelled"
case MFMailComposeResultSaved.rawValue:
feedbackMsg = "Mail Saved"
case MFMailComposeResultSent.rawValue:
feedbackMsg = "Mail Sent"
case MFMailComposeResultFailed.rawValue:
feedbackMsg = "Mail Failed"
default:
feedbackMsg = ""
}
print("Mail: \(feedbackMsg)")
//------------------------------------------------
}
}
