我UITableView
約20行均含有一UITextField
。第一次點擊一個文本框會打開鍵盤,我準備編輯這個文本框。如果我點擊下一個文本框(注意鍵盤始終顯示),鍵盤仍然顯示,但藍色光標不在新文本框中,我無法輸入任何文本。但是如果我再次點擊另一個文本框,它就可以正常工作。這種行爲交替發生,一次它工作而另一次不工作。的UITextField中的UITableView不成爲第一個響應者
委託方法textFieldShouldBeginEditing(_:)
總是被調用,閹我可以編輯或沒有。代理方法textFieldDidBeginEditing(_:)
僅在編輯工作時調用。
這是cellForRowAt
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "TextFieldCell")!
let titleLabel = cell.viewWithTag(1) as! UILabel
let contentTextField = cell.viewWithTag(2) as! FixableTextField
contentTextField.delegate = self
contentTextField.inputAccessoryView = doneToolbar
// Enable/disable editing for text fields
if isEditing {
contentTextField.enableEditing()
} else {
contentTextField.disableEditing()
}
// Present Profile Data
if profileUpdateBuffer != nil {
switch indexPath.row {
case 0:
titleLabel.text = "Count"
contentTextField.text = "\(profileUpdateBuffer!.count)"
contentTextField.purposeID = "count"
contentTextField.keyboardType = .numberPad
case 1:
titleLabel.text = "City"
contentTextField.text = "\(profileUpdateBuffer!.city)"
contentTextField.purposeID = "city"
contentTextField.keyboardType = .default
// ...
case 20:
titleLabel.text = "Name"
contentTextField.text = "\(profileUpdateBuffer!.name)"
contentTextField.purposeID = "name"
contentTextField.keyboardType = .default
default:
titleLabel.text = ""
contentTextField.text = ""
}
return cell
}
// No data available -> show info in first row
else {
if indexPath.row == 0 {
titleLabel.text = "No data"
contentTextField.text = "No data"
}
else {
titleLabel.text = ""
contentTextField.text = ""
}
return cell
}
}
的enableEditing()
和disableEditing()
方法的代碼是從FixableTextField
類。我可以看到文本框始終處於啓用狀態,因爲我可以看到文本框邊框
// Extract from FixableTextField class
func enableEditing() {
self.isEnabled = true
self.borderStyle = .roundedRect
}
func disableEditing() {
self.isEnabled = false
self.borderStyle = .none
}
代碼從setProperty
方法,它是從ProfileData
類UITextField
func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
// Delete empty field indicator "-"
if textField.text == "-" {
textField.text = ""
}
//Move profileTable's contentView to correct position
if textField is FixableTextField {
let path = IndexPath(row: rowMap[(textField as! FixableTextField).purposeID]!, section: 0)
moveContentViewUp(indexPath: path)
}
return true
}
func textFieldDidEndEditing(_ textField: UITextField) {
// Save new value to profileUpdateBuffer
do {
try self.profileUpdateBuffer?.setProperty(value: textField.text!, key: (textField as! FixableTextField).purposeID)
} catch ProfileError.PropertySettingWrongType {
let falseInputAlert = UIAlertController(title: "False Input", message: "The input for this field is not valid.", preferredStyle: .alert)
falseInputAlert.addAction(UIAlertAction(title: "OK", style: .cancel, handler: nil))
self.present(falseInputAlert, animated: true, completion: nil)
} catch {
print("Error when trying to set property for profileUpdateBuffer in ProfileViewController")
}
// Display new data in table
profileTable.reloadData()
}
提取物。 profileUpdateBuffer
的類型是ProfileData
func setProperty(value:String, key:String) throws {
switch key {
case "count":
count = value
case "city":
count = value
// ...
case "name":
name = value
default:
throw ProfileError.PropertySettingWrongType
}
}
請發佈您的代碼,以便我們可以幫助您。尤其是你的cellForRowAt indexPath函數。你如何添加監聽器到你的textFields? –
謝謝,當然我會的。 – Codey
'textFieldShouldBeginEditing(_ :)'中是否有過濾邏輯?我看到你也有你的VC設置爲所有文本字段的代表。你有一個邏輯來區分委託方法實現中的單元格嗎?您可以嘗試在單元格中移動TextField委託,這樣每個單元格都將負責自己。 – kr45ko