swift5 - JSQMessagesViewController 中的 inputToolbar 不起作用

Question

我试图隐藏 inputToolbar 但不工作。

`导入 UIKit 导入 JSQMessagesViewController 导入 ProgressHUD 导入 IQAudioRecorderController 导入 IDMPhotoBrowser 导入 AVFoundation 导入 AVKit 导入 FirebaseFirestore

类 ChatViewController: JSQMessagesViewController {

var outgoingBubble = JSQMessagesBubbleImageFactory()?.outgoingMessagesBubbleImage(with: UIColor.jsq_messageBubbleBlue())

var incomingBubble = JSQMessagesBubbleImageFactory()?.incomingMessagesBubbleImage(with: UIColor.jsq_messageBubbleLightGray())

   override func viewDidLayoutSubviews() {
    perform(Selector(("jsq_updateCollectionViewInsets")))
}


override func viewDidLoad() {
    super.viewDidLoad()
   
    self.senderId=FUser.currentId()
  
    self.senderDisplayName=FUser.currentUser()!.firstname
    
            
      let constrain = perform(Selector(("toolbarBottomLayoutGuide")))?.takeUnretainedValue() as! NSLayoutConstraint
      constrain.priority=UILayoutPriority(rawValue: 1000)
      self.inputToolbar.bottomAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.bottomAnchor).isActive=true
     

    

}

} `