42
我正在使用一个简单的快速应用程序，用户在其中输入电子邮件地址并按下打开邮件应用程序的按钮，并在地址栏中输入地址。我知道如何在Objective-C中做到这一点，但我无法在Swift中使用它。如何从Swift打开邮件应用程序
A
回答
37
我不确定您是要切换到邮件应用程序本身，还是只需打开并发送电子邮件。对于链接到一个按钮IBAction为后面的选项：
import UIKit
import MessageUI
class ViewController: UIViewController, MFMailComposeViewControllerDelegate {
@IBAction func launchEmail(sender: AnyObject) {
var emailTitle = "Feedback"
var messageBody = "Feature request or bug report?"
var toRecipents = ["[email protected]stackoverflow.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)
}
func mailComposeController(controller:MFMailComposeViewController, didFinishWithResult result:MFMailComposeResult, error:NSError) {
switch result {
case MFMailComposeResultCancelled:
print("Mail cancelled")
case MFMailComposeResultSaved:
print("Mail saved")
case MFMailComposeResultSent:
print("Mail sent")
case MFMailComposeResultFailed:
print("Mail sent failure: \(error?.localizedDescription)")
default:
break
}
self.dismissViewControllerAnimated(true, completion: nil)
}
}
128
您可以使用简单的mailto：链接在iOS中打开邮件应用程序。
let email = "[email protected]"
if let url = URL(string: "mailto:\(email)") {
UIApplication.shared.open(url)
}
13
夫特2，用availability检查：
import MessageUI
if MFMailComposeViewController.canSendMail() {
let mail = MFMailComposeViewController()
mail.mailComposeDelegate = self
mail.setToRecipients(["[email protected]"])
mail.setSubject("Bla")
mail.setMessageBody("<b>Blabla</b>", isHTML: true)
presentViewController(mail, animated: true, completion: nil)
} else {
print("Cannot send mail")
// give feedback to the user
}
// MARK: - MFMailComposeViewControllerDelegate
func mailComposeController(controller: MFMailComposeViewController, didFinishWithResult result: MFMailComposeResult, error: NSError?) {
switch result.rawValue {
case MFMailComposeResultCancelled.rawValue:
print("Cancelled")
case MFMailComposeResultSaved.rawValue:
print("Saved")
case MFMailComposeResultSent.rawValue:
print("Sent")
case MFMailComposeResultFailed.rawValue:
print("Error: \(error?.localizedDescription)")
default:
break
}
controller.dismissViewControllerAnimated(true, completion: nil)
}
+1
如果在执行此操作时收到模拟器错误，则可能是由于模拟器错误：https://stackoverflow.com/questions/25895634/email-composure-ios-8 – 2016-03-02 18:04:29
7
这在夫特3个步骤的直接的解决方案。
import MessageUI
添加符合委派
MFMailComposeViewControllerDelegate
而刚刚创建的方法：
func sendEmail() {
if MFMailComposeViewController.canSendMail() {
let mail = MFMailComposeViewController()
mail.mailComposeDelegate = self
mail.setToRecipients(["[email protected]"])
mail.setSubject("Support App")
mail.setMessageBody("<p>Send us your issue!</p>", isHTML: true)
presentViewController(mail, animated: true, completion: nil)
} else {
// show failure alert
}
}
func mailComposeController(controller: MFMailComposeViewController, didFinishWithResult result: MFMailComposeResult, error: NSError?) {
controller.dismissViewControllerAnimated(true, completion: nil)
}
5
import UIKit
import MessageUI
class ViewController: ViewController,MFMailComposeViewControllerDelegate {
@IBAction func EmailBtnClicked(sender: AnyObject) {
let mailComposeViewController = configuredMailComposeViewController()
if MFMailComposeViewController.canSendMail() {
self.presentViewController(mailComposeViewController, animated: true, completion: nil)
} else {
self.showSendMailErrorAlert()
}
}
func configuredMailComposeViewController() -> MFMailComposeViewController {
let mailComposerVC = MFMailComposeViewController()
mailComposerVC.mailComposeDelegate = self // Extremely important to set the --mailComposeDelegate-- property, NOT the --delegate-- property
mailComposerVC.setToRecipients(["[email protected]"])
mailComposerVC.setSubject("Sending you an in-app e-mail...")
mailComposerVC.setMessageBody("Sending e-mail in-app is not so bad in swift!", isHTML: false)
return mailComposerVC
}
func showSendMailErrorAlert() {
let sendMailErrorAlert = UIAlertView(title: "Unable to Send Email", message: "Your device could not send e-mail. Please check e-mail configuration and try again.", delegate: self, cancelButtonTitle: "OK")
sendMailErrorAlert.show()
}
// MARK: MFMailComposeViewControllerDelegate
func mailComposeController(controller: MFMailComposeViewController!, didFinishWithResult result: MFMailComposeResult, error: NSError!) {
controller.dismissViewControllerAnimated(true, completion: nil)
}
}
8
更新斯蒂芬新郎答案斯威夫特3
let email = "[email protected]"
let url = URL(string: "mailto:\(email)")
UIApplication.shared.openURL(url!)
12
在Swift 3中，确保添加import MessageUI，并且需要符合MFMailComposeViewControllerDelegate协议。
func sendEmail() {
if MFMailComposeViewController.canSendMail() {
let mail = MFMailComposeViewController()
mail.mailComposeDelegate = self
mail.setToRecipients(["[email protected]"])
mail.setMessageBody("<p>You're so awesome!</p>", isHTML: true)
present(mail, animated: true)
} else {
// show failure alert
}
}
协议：
func mailComposeController(_ controller: MFMailComposeViewController, didFinishWith result: MFMailComposeResult, error: Error?) {
controller.dismiss(animated: true)
}
0
对于我们这些对雨燕2.3在这里仍落后是戈登在我们的语法答案：
let email = "[email protected]"
if let url = NSURL(string: "mailto:\(email)") {
UIApplication.sharedApplication().openURL(url)
}
2
@IBAction func launchEmail(sender: AnyObject) {
if if MFMailComposeViewController.canSendMail() {
var emailTitle = "Feedback"
var messageBody = "Feature request or bug report?"
var toRecipents = ["[email protected]"]
var mc: MFMailComposeViewController = MFMailComposeViewController()
mc.mailComposeDelegate = self
mc.setSubject(emailTitle)
mc.setMessageBody(messageBody, isHTML: false)
mc.setToRecipients(toRecipents)
self.present(mc, animated: true, completion: nil)
} else {
// show failure alert
}
}
func mailComposeController(controller:MFMailComposeViewController, didFinishWithResult result:MFMailComposeResult, error:NSError) {
switch result {
case .cancelled:
print("Mail cancelled")
case .saved:
print("Mail saved")
case .sent:
print("Mail sent")
case .failed:
print("Mail sent failure: \(error?.localizedDescription)")
default:
break
}
self.dismiss(animated: true, completion: nil)
}
请注意，并非所有用户都他们的设备配置为发送电子邮件，这就是为什么我们需要在尝试发送前检查canSendMail（）的结果。另请注意，您需要捕获didFinishWith回调才能关闭邮件窗口。
2
呢？这里是如何寻找斯威夫特4：
import MessageUI
if MFMailComposeViewController.canSendMail() {
let mail = MFMailComposeViewController()
mail.mailComposeDelegate = self
mail.setToRecipients(["[email protected]"])
mail.setSubject("Bla")
mail.setMessageBody("<b>Blabla</b>", isHTML: true)
present(mail, animated: true, completion: nil)
} else {
print("Cannot send mail")
// give feedback to the user
}
func mailComposeController(_ controller: MFMailComposeViewController, didFinishWith result: MFMailComposeResult, error: Error?) {
switch result.rawValue {
case MFMailComposeResult.cancelled.rawValue:
print("Cancelled")
case MFMailComposeResult.saved.rawValue:
print("Saved")
case MFMailComposeResult.sent.rawValue:
print("Sent")
case MFMailComposeResult.failed.rawValue:
print("Error: \(String(describing: error?.localizedDescription))")
default:
break
}
controller.dismiss(animated: true, completion: nil)
}
4
下面是斯威夫特4的更新，如果你只是希望通过URL打开邮件客户端：
let email = "[email protected]"
if let url = NSURL(string: "mailto:\(email)") {
UIApplication.shared.open(url! as URL, options: [:], completionHandler: nil)
}
这个工作对我来说非常好:)
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我遇到了未调用mailComposeController委托函数的问题。 – AustinT 2015-01-22 05:31:42
添加“导入MessageUI”你的进口，并确保到“MFMailComposeViewControllerDelegate”选项添加到您的类声明，如： 'MyClass类：UIViewController中，MFMailComposeViewControllerDelegate {' – Jalakoo 2015-02-21 01:27:19
MFMailComposeViewController（）对我来说 – ilan 2015-04-20 07:21:08