Open eMail from App with predefined text in 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 = "[email protected]"
let urlEMail = NSURL(string: "mailto:\(email)")

if UIApplication.sharedApplication().canOpenURL(urlEMail!) {
                UIApplication.sharedApplication().openURL(urlEMail!)
} else {
print("Ups")
}

Solution 1

You can do it using MFMailComposeViewController:

import MessageUI

let mailComposerVC = MFMailComposeViewController()
mailComposerVC.mailComposeDelegate = self
mailComposerVC.setToRecipients(["[email protected]"])
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

Solution 2

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:[email protected]?\(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:[email protected]?subject=\(subject)&body=\(body)".stringByAddingPercentEncodingWithAllowedCharacters(.URLQueryAllowedCharacterSet())

if let emailURL:NSURL = NSURL(string: coded!)
    {
    if UIApplication.sharedApplication().canOpenURL(emailURL)
        {
        UIApplication.sharedApplication().openURL(emailURL)
        }

Solution 3

Swift 3 Version

let subject = "Some subject"
let body = "Plenty of email body."
let coded = "mailto:[email protected]?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)
    }
}

Solution 4

Swift 4.0

    let email = "[email protected]"
    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.")
                    }
                })
            }
        }
    }

Solution 5

Use the MFMailComposeViewController like this:

1. Import the MessageUI

   import MessageUI
   

2. Add the delegate to your class:

   class myClass: UIViewController, MFMailComposeViewControllerDelegate {}
   

3. Configure the email preset you want to have

   let mail = MFMailComposeViewController()
   mail.mailComposeDelegate = self
   mail.setSubject("Subject")
   mail.setMessageBody("Body", isHTML: true)
   mail.setToRecipients(["[email protected]"])
   presentViewController(mail, animated: true, completion: nil)
   

4. Put this method in your code:

   func mailComposeController(controller: MFMailComposeViewController!, didFinishWithResult result: MFMailComposeResult, error: NSError!) {
       dismissViewControllerAnimated(true, completion: nil)
   }
   

There you go, works now.

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Comments

[LinusGeffarth]

OP asked for Swift code, your reference displays Obj-C instead.

[David Rysanek]

The link leads to Apple's documentation, where are all information, which could Jan possibly need, not only specific parts (methods/properties). Apple has the sample code only in ObjC in this case, but it could be easily translated to Swift.

[Fattie]

the actual correct answer to the question on the page! thanks man! :)

[Au Ris]

Before you create your mailComposerVC it is not a bad idea to check if you actually can send an email using MFMailComposeViewController.canSendMail()