MFMailComposeViewController setToRecipients从设置文本字段追加字符串麻烦 [英] MFMailComposeViewController setToRecipients append String from settings textField trouble

问题描述

希望这是一个简单的问题?但是我似乎无法解决这个问题.

Hopefully this is a simple issue? But I just cant seem to get my head around it.

我的settingsViewController中有一个名为emailText的文本字段，我想在其中设置默认电子邮件收件人.

I have a text field in my settingsViewController called emailText where I want to set the default email recipient.

@IBOutlet weak var emailText: UITextField!
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    let shoppingListViewController = segue.destinationViewController as! ShoppingListViewController
    shoppingListViewController.emailString = ([emailText.text]!)
}

func textFieldShouldReturn(emailText: UITextField) -> Bool {
    emailText.resignFirstResponder()

    print ((emailText.text)!) //This prints the correct email address in the console.

    return true;
}

我的shoppingListViewController通过以下方式接收此字符串:

My shoppingListViewController recieves this string by the following:

var emailString = ""
mailComposerVC.setToRecipients ([emailString])

我的问题是，当我按我的按钮打开电子邮件时，我得到了2016-05-26 14:25:14.617我的APP名称[1397:520893]在控制台中不是有效的电子邮件地址? 在打开的电子邮件中还有一个空白的收件人:"字段.

My problem is that when I press my button to open the email I get 2016-05-26 14:25:14.617 MY APP Name [1397:520893] is not a valid email address in the console? And a blank To: field in the opened email.

我要去哪里错了?

推荐答案

好，所以我仍然想解决问题.我会再次提出我的问题，希望有人会注意到我的说法不太正确.

Ok, so I'm still stuck for a fix. Ill lay out my issue again, in hopes that somebody will notice something not quite right with my segue.

我有一个UITabBarController-它具有3个选项卡(1)产品列表(2)购物列表(3)设置.因此，这三个视图都具有UINavigationViewControllers. 我的设置"页面中有一个文本字段"，用于设置MFMailComposeViewController的默认收件人电子邮件地址(mailComposerVC.setToRecipients)，该按钮是通过从shopListViewController中按下按钮启动的. (邮件正常工作，我只是不明白我的意思:填充了地址字符串) 我可以从settingsViewController进行打印以控制台文本字段(emailText.text). 我的命令并没有一直传递到shoppingListViewController，在这里它需要作为字符串.

I have a UITabBarController - It has 3 Tabs (1)Product List (2)Shopping List (3)Settings. So all three views also have UINavigationViewControllers. I have a Text Field in my Settings page to set the default recipient email address for MFMailComposeViewController (mailComposerVC.setToRecipients) which is launched by button press from shoppingListViewController. (Mail is working, I just don't get my to: address string populated) I can print to console the text field (emailText.text) just fine from settingsViewController. My segue does not carry all the way through to shoppingListViewController where it is required as a string.

SettingsVC(emailText)-> TabBarController-> NavController(2nd)-> ShoppingListVC(emailString ="emailText.text")-> mailComposerVC.setToRecipients([emailString])

SettingsVC (emailText) --> TabBarController --> NavController (2nd) --> ShoppingListVC (emailString = "emailText.text") --> mailComposerVC.setToRecipients([emailString])

我的搜寻现在看起来像下面，但是仍然迷路了.

My segue now looks like the following, but is still getting lost on the way.

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    let tabBarController = segue.destinationViewController as! UITabBarController
    let nav = tabBarController.viewControllers![2] as! UINavigationController
        let shoppingListViewController = nav.topViewController as? ShoppingListViewController
            shoppingListViewController!.emailString = emailText.text
}

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