如何在iOS 8中的交互式通知中添加文本字段

我正在开发一个应用程序。这将具有交互式通知。如果应用程序收到推送通知，且应用程序未在前台运行，则用户应能够通过通知中心中的通知进行回复。我想添加文本字段以从用户处获取文本，并添加回复按钮以将文本发送到应用程序

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你知道怎么做吗？我可以通过UIMutableNotificationAction类添加按钮。但找不到添加文本字段的方法。

对于Xcode6 GM和iOS8 GM版本。没有向交互式**通知添加文本字段的选项

 NS_CLASS_AVAILABLE_IOS(8_0)
  @interface UIMutableUserNotificationAction : UIUserNotificationAction
  // The unique identifier for this action.
  @property (nonatomic, copy) NSString *identifier;

  // The localized title to display for this action.
  @property (nonatomic, copy) NSString *title;
  // How the application should be activated in response to the action.
  @property (nonatomic, assign) UIUserNotificationActivationMode activationMode;
  // Whether this action is secure and should require unlocking before being performed.    If the activation mode is UIUserNotificationActivationModeForeground, then the action is considered secure and this property is ignored.
  @property (nonatomic, assign, getter=isAuthenticationRequired) BOOL authenticationRequired;
  // Whether this action should be indicated as destructive when displayed.
  @property (nonatomic, assign, getter=isDestructive) BOOL destructive;
  @end

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据我所知，iOS 8尚未发布，您必须在苹果开发者论坛上询问。