iOS: Generate email compose screen pre-populated with system information

gistfile1.m

if ([MFMailComposeViewController canSendMail]) {
    NSString *iosVersion = [[UIDevice currentDevice] systemVersion];
    NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary];
    NSString *appVersion = [infoDictionary objectForKey:@"CFBundleShortVersionString"];
        
    MFMailComposeViewController *mailViewController = [[MFMailComposeViewController alloc] init];
    mailViewController.mailComposeDelegate = self;
    mailViewController.modalPresentationStyle = UIModalPresentationFormSheet;
    [mailViewController setToRecipients:@[@"[email protected]"]];
    [mailViewController setMessageBody:[NSString stringWithFormat:@"<br/><br/><hr size=1><strong>UTC Chart Information</strong><br/>App Version: %@<br/>iOS Version: %@<hr size=1>", appVersion, iosVersion] isHTML:YES];
    [self presentViewController:mailViewController animated:YES completion:nil];
        
}
else {
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Unable to Send Mail" message:@"No email accounts have been configured for this device. At least one email account is required to send feedback." delegate:nil cancelButtonTitle:@"Dismiss" otherButtonTitles:nil];
    [alert show];
}