Add saved email string to email recipient - ios

Question

To save user time when emailing, user saves there email address in a preferences page that should pre fill the recipient when email is composed. (or thats what im trying to do) Here is where im stuck, how do I use my saved string to an object for the purpose of pre filling the recipient.
Currently the string does not pre fill the recipient
saves here in preferences page:
NSString *savecontents = _emailAddress.text;
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:savecontents forKey:#"saveEmail"];
[defaults synchronize];
Reads here in mail view presentation
- (IBAction)email:(id)sender {
NSString *savedValue = [[NSUserDefaults standardUserDefaults] <---------- saved email string
stringForKey:#"saveEmail"];
if ([MFMailComposeViewController canSendMail]) {
MFMailComposeViewController *mail = [[MFMailComposeViewController alloc] init];
mail.mailComposeDelegate = self;
NSArray *toRecipients = [NSArray arrayWithObject:savedValue]; <------- trying to get string here
[mail setToRecipients:toRecipients];
[mail setSubject:#"subject"];
NSString *emailBody = [NSString stringWithFormat: #"text here"] ;
[mail setMessageBody:emailBody isHTML:YES];
mail.modalPresentationStyle = UIModalPresentationPageSheet;
[self presentModalViewController:mail animated:YES];
}
tried so far:
NSArray *toRecipients = [NSString stringWithFormat:savedValue];
[mail setToRecipients:toRecipients];
and
NSArray *toRecipients = [NSString stringWithFormat:#"%#",savedValue];
[mail setToRecipients:toRecipients];
and
Google, SO and banging fist on desk

Answer 1

All you need is this:
if (savedValue.length) {
[mail setToRecipients:#[ savedValue ]];
}
This uses modern Objective-C array syntax. This would be the same as:
if (savedValue.length) {
NSArray *toRecipients = [NSArray arrayWithObject:saveValue];
[mail setToRecipients:toRecipients];
}
The code you have you are trying to assign an NSString value to an NSArray variable.
Also, please don't use stringWithFormat unless you actually have a need to format a string.