Launch Apple Mail App from within my own App?

Question

What I already found is

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@\"mailto:\"]];

But I just want to open the Mail ap

Answer 1

Swift version of the original Amit's answer:

Swift 2:

func openMailApp() {

    let toEmail = "stavik@outlook.com"
    let subject = "Test email".stringByAddingPercentEncodingWithAllowedCharacters(.URLHostAllowedCharacterSet()
    let body = "Just testing ...".stringByAddingPercentEncodingWithAllowedCharacters(.URLHostAllowedCharacterSet()

    if let
        urlString = ("mailto:\(toEmail)?subject=\(subject)&body=\(body)")),
        url = NSURL(string:urlString) {
        UIApplication.sharedApplication().openURL(url)
    }
}

Swift 3.0:

func openMailApp() {

    let toEmail = "stavik@outlook.com"
    let subject = "Test email".addingPercentEncoding(withAllowedCharacters: .urlHostAllowed)
    let body = "Just testing ...".addingPercentEncoding(withAllowedCharacters: .urlHostAllowed)

    if let
        urlString = "mailto:\(toEmail)?subject=\(subject)&body=\(body)",
        url = URL(string:urlString) {
        UIApplication.shared().openURL(url)
    }
}

Answer 2

NSString *recipients = @"mailto:first@example.com?cc=second@example.com,third@example.com&subject=Hello from California!";

NSString *body = @"&body=It is raining in sunny California!";

NSString *email = [NSString stringWithFormat:@"%@%@", recipients, body];

email = [email stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:email]];

Answer 3

Swift 4 / 5 to open default Mail App without compose view. If Mail app is removed, it automatically shows UIAlert with options to redownload app :)

UIApplication.shared.open(URL(string: "message:")!, options: [:], completionHandler: nil)

Answer 4

In Swift:

let recipients = "someone@gmail.com"
let url = NSURL(string: "mailto:\(recipients)")
UIApplication.sharedApplication().openURL(url!)

Answer 5

If you are using Xamarin to developer an iOS application, here is the C# equivalent to open the mail application composer view:

string email = "yourname@companyname.com";
NSUrl url = new NSUrl(string.Format(@"mailto:{0}", email));
UIApplication.SharedApplication.OpenUrl(url);

Answer 6

on swift 2.3: open mailbox

UIApplication.sharedApplication().openURL(NSURL(string: "message:")!)