Set default subject when click on email address

Question

I am using dataDetectorTypes property with UITextView.code works fine.

When I click on link email composer appears with pre-filled To:[email address] but i want to set d

Answer 1

1)Fist add to the class that contains the textview.

You must add two imports to this class:

#import 
#import 

2) Add a variable: MFMailComposeViewController (in this example mailVC, you can also add it as a class property in your .h)

3) Implement the next method:

- (BOOL)textView:(UITextView *)textView shouldInteractWithURL:(NSURL *)URL inRange:(NSRange)characterRange

This allows to intercepts the specific url interaction. You can cancel a specific interaction and add your own action, for example:

-(BOOL)textView:(UITextView *)textView shouldInteractWithURL:(NSURL *)URL inRange:(NSRange)characterRange{
   //EXAMPLE CODE
    if ([[URL scheme] isEqualToString:@"mailto"]) {

        mailVC = [[MFMailComposeViewController alloc] init];
        [mailVC setToRecipients:@[@"your@destinationMail.com"]];
        [mailVC setSubject:@"A subject"];
        mailVC.mailComposeDelegate = self;

        [self presentViewController:mailVC animated:YES completion:^{
           // [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
        }];
        return NO;
    }
    return YES;
}

3) To dismiss your MFMailComposeViewController variable:

-(void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error{
    [mailVC dismissViewControllerAnimated:YES completion:nil];
}

That works for me!