Open eMail from App with predefined text in iOS - ios

Question

Hello i want to open the eMail program from my App and the body should already be defined. I can open the eMail but don't know how to define the body of the eMail as a given Parameter to show a given standard text. Anyone can help? Heres the code i use to open Email:
//EMAIL
let email = "foo#bar.com"
let urlEMail = NSURL(string: "mailto:\(email)")
if UIApplication.sharedApplication().canOpenURL(urlEMail!) {
UIApplication.sharedApplication().openURL(urlEMail!)
} else {
print("Ups")
}

Answer 1

If you'd like to open the built-in email app as opposed to showing the MFMailComposeViewController as has been mentioned by others, you could construct a mailto: link like this:
let subject = "My subject"
let body = "The awesome body of my email."
let encodedParams = "subject=\(subject)&body=\(body)".stringByAddingPercentEncodingWithAllowedCharacters(.URLQueryAllowedCharacterSet())
let url = "mailto:foo#bar.com?\(encodedParams)"
if let emailURL = NSURL(url) {
if UIApplication.sharedApplication().canOpenURL(emailURL) {
UIApplication.sharedApplication().openURL(emailURL)
}
}
Just to save anyone typing, for 2016 the syntax has changed slightly:
let subject = "Some subject"
let body = "Plenty of email body."
let coded = "mailto:blah#blah.com?subject=\(subject)&body=\(body)".stringByAddingPercentEncodingWithAllowedCharacters(.URLQueryAllowedCharacterSet())
if let emailURL:NSURL = NSURL(string: coded!)
{
if UIApplication.sharedApplication().canOpenURL(emailURL)
{
UIApplication.sharedApplication().openURL(emailURL)
}

Answer 2

Swift 3 Version
let subject = "Some subject"
let body = "Plenty of email body."
let coded = "mailto:blah#blah.com?subject=\(subject)&body=\(body)".addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)
if let emailURL: NSURL = NSURL(string: coded!) {
if UIApplication.shared.canOpenURL(emailURL as URL) {
UIApplication.shared.openURL(emailURL as URL)
}
}

Answer 3

You can do it using MFMailComposeViewController:
import MessageUI
let mailComposerVC = MFMailComposeViewController()
mailComposerVC.mailComposeDelegate = self
mailComposerVC.setToRecipients(["email#email.com"])
mailComposerVC.setSubject("Subject")
mailComposerVC.setMessageBody("Body", isHTML: false)
self.presentViewController(mailComposerVC, animated: true, completion: nil)
Also, you need to implement mailComposeController:didFinishWithResult:error: from MFMailComposeViewControllerDelegate where you should dismiss MFMailComposeViewController

Answer 4

Swift 4.0
let email = "feedback#company.com"
let subject = "subject"
let bodyText = "Please provide information that will help us to serve you better"
if MFMailComposeViewController.canSendMail() {
let mailComposerVC = MFMailComposeViewController()
mailComposerVC.mailComposeDelegate = self
mailComposerVC.setToRecipients([email])
mailComposerVC.setSubject(subject)
mailComposerVC.setMessageBody(bodyText, isHTML: true)
self.present(mailComposerVC, animated: true, completion: nil)
} else {
let coded = "mailto:\(email)?subject=\(subject)&body=\(bodyText)".addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)
if let emailURL = URL(string: coded!)
{
if UIApplication.shared.canOpenURL(emailURL)
{
UIApplication.shared.open(emailURL, options: [:], completionHandler: { (result) in
if !result {
// show some Toast or error alert
//("Your device is not currently configured to send mail.")
}
})
}
}
}

Answer 5

Use the MFMailComposeViewController like this:
Import the MessageUI
import MessageUI
Add the delegate to your class:
class myClass: UIViewController, MFMailComposeViewControllerDelegate {}
Configure the email preset you want to have
let mail = MFMailComposeViewController()
mail.mailComposeDelegate = self
mail.setSubject("Subject")
mail.setMessageBody("Body", isHTML: true)
mail.setToRecipients(["my#email.com"])
presentViewController(mail, animated: true, completion: nil)
Put this method in your code:
func mailComposeController(controller: MFMailComposeViewController!, didFinishWithResult result: MFMailComposeResult, error: NSError!) {
dismissViewControllerAnimated(true, completion: nil)
}
There you go, works now.

Answer 6

Similar to url construction in the other answers, but instead of calling addingPercentEncoding you can use URLComponents:
var components = URLComponents(string: "youremail#test.com")
components?.queryItems = [URLQueryItem(name: "subject", value: "Your Subject")]
if let mailUrl = components?.url {
UIApplication.shared.open(mailUrl, options: [:], completionHandler: nil)
}

Answer 7

Updated for Xcode 12.5
let url = NSURL(string: "mailto:mailto:someone#example.com")
UIApplication.shared.open(url! as URL)
or if you would like to add an embedded subject
let url = NSURL(string: "mailto:someone#example.com?subject=This%20is%20the%20subject&cc=someone_else#example.com&body=This%20is%20the%20body")
or if you want to add multiple email addresses
let url = NSURL(string: "mailto:mailto:someone#example.com,someoneelse#example.com")
UIApplication.shared.open(url! as URL)

Answer 8

I suggest to use Apple's way, which you can find in official documentation about MFMailComposeViewController. It opens a modal view controller with the email, which is dismissed after sending. Thus user stays in your app.

Answer 9

Swift 5 version of #mclaughj answer
let email = "foo#bar.com"
let subject = "Your Subject"
let body = "Plenty of email body."
let coded = "mailto:\(email)?subject=\(subject)".addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)
if let emailURL:NSURL = NSURL(string: coded!)
{
if UIApplication.shared.canOpenURL(emailURL as URL){
UIApplication.shared.open(emailURL as URL)
}
}
Cheers!