使用默认键盘可以正常工作，但我无法使用小键盘。
有什么想法吗？
【问题讨论】：
据我所知，您不能在键盘部分添加完成按钮；您必须在UITextField 或UITextView 中添加inputAccessoryView（如果您正在使用）。
检查documentation for more info。
编辑：查看this question for an example 了解如何执行此操作。
编辑2：类似example in Swift。
编辑 3：来自编辑 2 的代码，因为链接可能会过期。
override func viewDidLoad()
{
super.viewDidLoad()
//--- add UIToolBar on keyboard and Done button on UIToolBar ---//
self.addDoneButtonOnKeyboard()
}
//--- *** ---//
func addDoneButtonOnKeyboard()
{
var doneToolbar: UIToolbar = UIToolbar(frame: CGRectMake(0, 0, 320, 50))
doneToolbar.barStyle = UIBarStyle.BlackTranslucent
var flexSpace = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)
var done: UIBarButtonItem = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Done, target: self, action: Selector("doneButtonAction"))
var items = NSMutableArray()
items.addObject(flexSpace)
items.addObject(done)
doneToolbar.items = items
doneToolbar.sizeToFit()
self.textView.inputAccessoryView = doneToolbar
self.textField.inputAccessoryView = doneToolbar
}
func doneButtonAction()
{
self.textViewDescription.resignFirstResponder()
}
斯威夫特 4.2
func addDoneButtonOnKeyboard(){
let doneToolbar: UIToolbar = UIToolbar(frame: CGRect.init(x: 0, y: 0, width: UIScreen.main.bounds.width, height: 50))
doneToolbar.barStyle = .default
let flexSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
let done: UIBarButtonItem = UIBarButtonItem(title: "Done", style: .done, target: self, action: #selector(self.doneButtonAction))
let items = [flexSpace, done]
doneToolbar.items = items
doneToolbar.sizeToFit()
txtMobileNumber.inputAccessoryView = doneToolbar
}
@objc func doneButtonAction(){
txtMobileNumber.resignFirstResponder()
}
【讨论】：
首先让我告诉你一件事，你可以在你的默认键盘上添加一个完成按钮。实际上，今天我刚刚解决了这个问题并解决了。现成的代码，只需将其放在您的 .swift 类中。我正在使用 Xcode 7 并使用 iPad Retina(ios 9) 进行测试。
反正这里不谈代码了。
//Creating an outlet for the textfield
@IBOutlet weak var outletTextFieldTime: UITextField!
//Adding the protocol of UITextFieldDelegate
class ReservationClass: UIViewController, UITextFieldDelegate {
func textFieldShouldBeginEditing(textField: UITextField) -> Bool {
//Making A toolbar
let keyboardDoneButtonShow = UIToolbar(frame: CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height/17))
//Setting the style for the toolbar
keyboardDoneButtonShow.barStyle = UIBarStyle .BlackTranslucent
//Making the done button and calling the textFieldShouldReturn native method for hidding the keyboard.
let doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Done, target: self, action: Selector("textFieldShouldReturn:"))
//Calculating the flexible Space.
let flexSpace = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)
//Setting the color of the button.
item.tintColor = UIColor .yellowColor()
//Making an object using the button and space for the toolbar
let toolbarButton = [flexSpace,doneButton]
//Adding the object for toolbar to the toolbar itself
keyboardDoneButtonShow.setItems(toolbarButton, animated: false)
//Now adding the complete thing against the desired textfield
outletTextFieldTime.inputAccessoryView = keyboardDoneButtonShow
return true
}
//Function for hidding the keyboard.
func textFieldShouldReturn(textField: UITextField) -> Bool {
self.view.endEditing(true)
return false
}
}
这给了我解决方案...
我只想告诉你一件事，这是我在最近的项目中使用的有效解决方案。我发布了这个，因为这个问题没有可用的解决方案。承诺的工作代码和解释。
编辑：-
使其更专业...如果您遵循上述代码，那么它也会为您提供有效的解决方案，但在这里我试图使其更专业。请注意代码MOD。我用引号留下了之前未使用的代码。
变化..
使用 FlexSpace 和 NegativeSpace 将自定义按钮定位到屏幕左侧。
func textFieldShouldBeginEditing(textField: UITextField) -> Bool {
let keyboardDoneButtonShow = UIToolbar(frame: CGRectMake(200,200, self.view.frame.size.width,30))
// self.view.frame.size.height/17
keyboardDoneButtonShow.barStyle = UIBarStyle .BlackTranslucent
let button: UIButton = UIButton()
button.frame = CGRectMake(0, 0, 65, 20)
button.setTitle("Done", forState: UIControlState .Normal)
button.addTarget(self, action: Selector("textFieldShouldReturn:"), forControlEvents: UIControlEvents .TouchUpInside)
button.backgroundColor = UIColor .clearColor()
// let doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Done, target: self, action: Selector("textFieldShouldReturn:"))
let doneButton: UIBarButtonItem = UIBarButtonItem()
doneButton.customView = button
let negativeSpace = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FixedSpace, target: nil, action: nil)
negativeSpace.width = -10.0
let flexSpace = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)
//doneButton.tintColor = UIColor .yellowColor()
let toolbarButton = [flexSpace,doneButton,negativeSpace]
keyboardDoneButtonShow.setItems(toolbarButton, animated: false)
outletTextFieldTime.inputAccessoryView = keyboardDoneButtonShow
return true
}
它现在给了我以下...此外尝试匹配图片并找到更改。
谢谢。
希望这会有所帮助。抱歉回答太长了。
【讨论】：
您可以将带有完成按钮的工具栏添加到键盘。 InputAccessoryView 文本字段的属性可用于设置此工具栏。
以下是我在案例中使用的代码
//Add done button to numeric pad keyboard
let toolbarDone = UIToolbar.init()
toolbarDone.sizeToFit()
let barBtnDone = UIBarButtonItem.init(barButtonSystemItem: UIBarButtonSystemItem.Done,
target: self, action: #selector(VerifyCardViewController.doneButton_Clicked(_:)))
toolbarDone.items = [barBtnDone] // You can even add cancel button too
txtCardDetails3.inputAccessoryView = toolbarDone
【讨论】：
如果您的Done 按钮应该只是关闭数字键盘，那么最简单的版本是调用resignFirstResponder 作为选择器，如下所示：
UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Done, target: textField, action: #selector(UITextField.resignFirstResponder))
此代码适用于 iOS9 和 Swift 2，我在我的应用程序中使用它：
func addDoneButtonOnNumpad(textField: UITextField) {
let keypadToolbar: UIToolbar = UIToolbar()
// add a done button to the numberpad
keypadToolbar.items=[
UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Done, target: textField, action: #selector(UITextField.resignFirstResponder)),
UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: self, action: nil)
]
keypadToolbar.sizeToFit()
// add a toolbar with a done button above the number pad
textField.inputAccessoryView = keypadToolbar
}
【讨论】：
Swift-3 版本（Marko 的解决方案 - 对我有用）
（在我的例子中，我有一个 UITextField 标识为textfield）
func addDoneButtonOnKeyboard() {
let doneToolbar: UIToolbar = UIToolbar(frame: CGRect(x: 0, y: 0, width: 320, height: 50))
doneToolbar.barStyle = UIBarStyle.default
let flexSpace = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.flexibleSpace, target: nil, action: nil)
let done: UIBarButtonItem = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.done, target: self, action: #selector(ViewController.doneButtonAction))
var items = [UIBarButtonItem]()
items.append(flexSpace)
items.append(done)
doneToolbar.items = items
doneToolbar.sizeToFit()
self.textfield.inputAccessoryView = doneToolbar
}
func doneButtonAction() {
self.textfield.resignFirstResponder()
}
【讨论】：
根据 Marko Nikolovski 的回答
这是 Objective-C 的答案：
- (void)ViewDidLoad {
[self addDoneButtonOnKeyboard];
}
- (void)addDoneButtonOnKeyboard {
UIToolbar *toolBarbutton = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 320, 50)];
toolBarbutton.barStyle = UIBarStyleBlackTranslucent;
UIBarButtonItem *barBtnItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
UIBarButtonItem *done = [[UIBarButtonItem alloc] initWithTitle:@"Done" style:UIBarButtonItemStyleDone target:self action:@selector(doneButtonAction)];
NSMutableArray *items = [[NSMutableArray alloc] init];
[items addObject:barBtnItem];
[items addObject:done];
toolBarbutton.items = items;
[toolBarbutton sizeToFit];
self.timeoutTextField.inputAccessoryView = toolBarbutton;
}
- (void)doneButtonAction {
[self.view endEditing:YES];
}
【讨论】：
Swift 5 解决方案使用@IBInpectable 和扩展。对于项目中的每个 UITextField，Interface Builder 中的 Attribute Inspector 下都会出现一个下拉列表。
extension UITextField{
@IBInspectable var doneAccessory: Bool{
get{
return self.doneAccessory
}
set (hasDone) {
if hasDone{
addDoneButtonOnKeyboard()
}
}
}
func addDoneButtonOnKeyboard()
{
let doneToolbar: UIToolbar = UIToolbar(frame: CGRect.init(x: 0, y: 0, width: UIScreen.main.bounds.width, height: 50))
doneToolbar.barStyle = .default
let flexSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
let done: UIBarButtonItem = UIBarButtonItem(title: "Done", style: .done, target: self, action: #selector(self.doneButtonAction))
let items = [flexSpace, done]
doneToolbar.items = items
doneToolbar.sizeToFit()
self.inputAccessoryView = doneToolbar
}
@objc func doneButtonAction()
{
self.resignFirstResponder()
}
}
【讨论】：
您可以创建自定义类。我正在使用 Swift 4：
class UITextFieldWithDoneButton: UITextField {
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
self.addDoneButtonOnKeyboard()
}
fileprivate func addDoneButtonOnKeyboard() {
let doneToolbar: UIToolbar = UIToolbar(frame: CGRect.init(x: 0, y: 0, width: UIScreen.main.bounds.width, height: 50))
doneToolbar.barStyle = .default
let flexSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
let done: UIBarButtonItem = UIBarButtonItem(title: "Done", style: .done, target: self, action: #selector(self.doneButtonAction))
let items = [flexSpace, done]
doneToolbar.items = items
doneToolbar.sizeToFit()
self.inputAccessoryView = doneToolbar
}
@objc fileprivate func doneButtonAction() {
self.resignFirstResponder()
}
}
【讨论】：
我能找到的最简单的解决方案 - 适用于 Swift 4.2 - 希望这会有所帮助 :)
extension UITextField {
func addDoneButtonOnKeyboard() {
let keyboardToolbar = UIToolbar()
keyboardToolbar.sizeToFit()
let flexibleSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace,
target: nil, action: nil)
let doneButton = UIBarButtonItem(barButtonSystemItem: .done,
target: self, action: #selector(resignFirstResponder))
keyboardToolbar.items = [flexibleSpace, doneButton]
self.inputAccessoryView = keyboardToolbar
}
}
然后您可以在 textFieldDidEndEditing 委托方法中处理完成的操作，或者只需将自定义方法添加到扩展并将其设置在 doneButton 的选择器中。
【讨论】：
在任何键盘上添加“完成”按钮的简单方法是添加通用库
在应用程序的appdelegate中添加以下代码（_应用程序：UIApplication，didFinishLaunchingWithOptions。
IQKeyboardManager.shared.enable = true
IQKeyboardManager.shared.enableAutoToolbar = true
IQKeyboardManager.shared.keyboardDistanceFromTextField = 15
IQKeyboardManager.shared.shouldResignOnTouchOutside = true
【讨论】：
我会使用一个名为 IQKeyboardManagerSwift 的库。
您必须在 AppDelegates 的 didFinishWithLaunching 方法中插入一行代码，然后它会将所有必要的功能应用于所有 TextField。
import IQKeyboardManagerSwift
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
//Following line is all you need and it applies for all TextFields
IQKeyboardManager.shared.enable = true
return true
}
【讨论】：
因为上面的答案在 Xcode 11 和更高版本的初始工具栏（如UIToolbar()）中是旧的，所以每次运行时都会在控制台上抛出一个破坏性约束，比如here，所以请使用
UIToolbar(frame: CGRect(x: 0, y: 0, width: view.frame.size.width, height: 35)) 而不是
示例代码
let toolBar = UIToolbar(frame: CGRect(x: 0, y: 0, width: view.frame.size.width, height: 35))
toolBar.barStyle = .default
toolBar.sizeToFit()
// Adding Button ToolBar
let doneButton = UIBarButtonItem(title: "Done", style: .plain, target: self, action: #selector(doneButtonTapped))
toolBar.items = [doneButton]
toolBar.isUserInteractionEnabled = true
textField.inputAccessoryView = toolBar
【讨论】：