从我的应用程序打开电子邮件

Question

我正在用Objective-C中的Cocos和Sprite Builder创建游戏，并且正在完成支持场景，但是我遇到了问题。 我想添加一个按钮，单击该按钮后，它将直接打开带有我的地址的电子邮件，以便用户在遇到问题时可以与我联系。

为此，我需要编写什么代码？

Answer 1

添加MessageUI框架，然后：

- (void)showMailSender
{
    if (![MFMailComposeViewController canSendMail]) {
        NSLog(@"MFMailComposeViewController can't send emails.");
        return;
    } else {
        MFMailComposeViewController *mailComposeViewController = [[MFMailComposeViewController alloc] init];
        mailComposeViewController.mailComposeDelegate = self;
        [mailComposeViewController setSubject:@"Subject"];
        [mailComposeViewController setToRecipients:@[@"example@domain.com"]];
        [self presentViewController:mailComposeViewController animated:YES completion:nil];
    }
}

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