我的iOS應用程序出現問題。我想實現類似於MessagingViewController
的地方,在UITableView
以下有UITextView
和Button
(sendButton)。如果點擊textView,鍵盤出現,視圖上升..到目前爲止這麼好。雖然在鍵盤按鍵上敲擊不會被識別
但是,如果我正在輸入隨機文本和選項卡/按發送按鈕(與現在應該發生什麼無關),或者如果打字和按鈕選項卡之間的時間間隔太小,則無法識別水龍頭。如果您嘗試iMessage或WhatsApp,這不是問題。
我不知道該怎麼做,我也嘗試了可可豆,如SlackViewController
或InputAccessoryView
但它總是同樣的問題。在輸入時,按鈕點擊不會被識別。我試用UIButton
和UITapGestureRecognizer
的正常IBAction
。
我希望有人能夠幫助我,這個問題使得UX變得可怕。
非常感謝!
編輯:下面是一個示例,其中Button在InputAccessoryView
中。
import UIKit
class MessagingViewController: UIViewController, UITableViewDataSource {
var messages: [String] = ["12", "32"]
var accessory: UIView!
var cancelButton: UIButton!
var charactersLeftLabel: UILabel!
var sendButton: UIButton!
@IBOutlet var tableView: UITableView!
@IBOutlet var messagesTextView: UITextView!
override func viewDidLoad() {
super.viewDidLoad()
tableView.dataSource = self
tableView.register(UINib(nibName: TableViewCell.className, bundle:nil),
forCellReuseIdentifier: TableViewCell.className)
addAccessoryView()
NotificationCenter.default.addObserver(self, selector: #selector(MessagingViewController.keyboardWillShow), name: NSNotification.Name.UIKeyboardWillShow, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(MessagingViewController.keyboardWillHide), name: NSNotification.Name.UIKeyboardWillHide, object: nil)
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return messages.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "TableViewCell", for: indexPath) as? TableViewCell
cell?.titleLabel.text = "Sender: \(indexPath.row): "
cell?.detailLabel.text = messages[indexPath.row]
return cell!
}
func addAccessoryView() {
let frame = CGRect(x:0, y:0, width: self.view.frame.width,height: 45)
accessory = UIView(frame: frame)
accessory.backgroundColor = UIColor.lightGray
accessory.alpha = 0.6
accessory.translatesAutoresizingMaskIntoConstraints = false
self.messagesTextView.inputAccessoryView = accessory
sendButton = UIButton(type: .custom)
sendButton.setTitleColor(UIColor.red, for: .normal)
sendButton.setTitle("Send", for: .normal)
sendButton.setTitleColor(UIColor.white, for: .disabled)
sendButton.addTarget(self, action: #selector(MessagingViewController.sendButtonTapped(_:)), for: .touchUpInside)
sendButton.showsTouchWhenHighlighted = true
sendButton.isEnabled = true
sendButton.translatesAutoresizingMaskIntoConstraints = false
accessory.addSubview(sendButton)
let sendTrailingConstraint = NSLayoutConstraint(item: sendButton, attribute: .trailing, relatedBy: .equal, toItem: accessory, attribute: .trailing, multiplier: 1.0, constant: -20)
accessory.addConstraint(sendTrailingConstraint)
let sendCenterYConstraint = NSLayoutConstraint(item: sendButton, attribute: .centerY, relatedBy: .equal, toItem: accessory, attribute: .centerY, multiplier: 1.0, constant: 0)
accessory.addConstraint(sendCenterYConstraint)
}
func sendButtonTapped(_ sender: UIButton) {
messages.append(messagesTextView.text)
messagesTextView.text.removeAll()
tableView.reloadData()
tableView.scrollToRow(at: IndexPath(row: messages.count - 1, section: 0), at: .bottom, animated: true)
}
func keyboardWillShow(notification: NSNotification) {
if let keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.cgRectValue {
if self.view.frame.origin.y == 0{
self.view.frame.origin.y -= keyboardSize.height
}
}
}
func keyboardWillHide(notification: NSNotification) {
if let keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.cgRectValue {
if self.view.frame.origin.y != 0{
self.view.frame.origin.y += keyboardSize.height
}
}
}
}
添加您的嘗試代碼在這裏或像github。 –