How to launch the iOS mail app in Swift?
Obviously a few years later...I had to add a completion handler for Xcode 10.2.1 swift 5.
This works perfectly-
let emailURL = NSURL(string: "message://")!
if UIApplication.shared.canOpenURL(emailURL as URL)
{
UIApplication.shared.open(emailURL as URL, options: [:],completionHandler: nil)
}
The Swift 3.0.1 way of just opening the Mail app goes as follows:
private func openMailClient() {
let mailURL = URL(string: "message://")!
if UIApplication.shared.canOpenURL(mailURL) {
UIApplication.shared.openURL(mailURL)
}
}
As "dehlen" correctly stated, using the message://
scheme will only open the mail app, if no further information is provided.
Not tested myself but maybe this answer will help you:
Apparently Mail supports a second url scheme
message://
which (I suppose) allows you to open a specific message if it was fetched by your application. If you do not provide a full message url, it will just open Mail:
let mailURL = URL(string: "message://")!
if UIApplication.shared.canOpenURL(mailURL) {
UIApplication.shared.openURL(mailURL)
}
Taken from: Launch Apple Mail App from within my own App?