在. numberpad键盘类型上没有“完成”按钮。当用户在文本字段中输入数字信息时,如何使数字pad消失?
我可以使用默认键盘来获得“完成”按钮,但用户必须切换到数字键才能输入数字。有没有办法在数字板上显示“完成”按钮?
在. numberpad键盘类型上没有“完成”按钮。当用户在文本字段中输入数字信息时,如何使数字pad消失?
我可以使用默认键盘来获得“完成”按钮,但用户必须切换到数字键才能输入数字。有没有办法在数字板上显示“完成”按钮?
当前回答
我修改了Bryan的解决方案,使其更加健壮,这样它就可以很好地与可能出现在同一视图中的其他类型的键盘一起使用。描述如下:
在iOS numpad UIKeyboard上创建DONE按钮
我会试着在这里解释它,但大部分代码都是要查看的,不容易放在这里
其他回答
Swift 2.2 /我用了Dx_的答案。然而,我希望所有的键盘都有这个功能。所以在我的基类中,我把代码:
func addDoneButtonForTextFields(views: [UIView]) {
for view in views {
if let textField = view as? UITextField {
let doneToolbar = UIToolbar(frame: CGRectMake(0, 0, self.view.bounds.size.width, 50))
let flexSpace = UIBarButtonItem(barButtonSystemItem: .FlexibleSpace, target: nil, action: nil)
let done = UIBarButtonItem(title: "Done", style: .Done, target: self, action: #selector(dismissKeyboard))
var items = [UIBarButtonItem]()
items.append(flexSpace)
items.append(done)
doneToolbar.items = items
doneToolbar.sizeToFit()
textField.inputAccessoryView = doneToolbar
} else {
addDoneButtonForTextFields(view.subviews)
}
}
}
func dismissKeyboard() {
dismissKeyboardForTextFields(self.view.subviews)
}
func dismissKeyboardForTextFields(views: [UIView]) {
for view in views {
if let textField = view as? UITextField {
textField.resignFirstResponder()
} else {
dismissKeyboardForTextFields(view.subviews)
}
}
}
然后只需调用addDoneButtonForTextFields在self.view.subviews在viewDidLoad(或willDisplayCell如果使用表格视图)添加完成按钮到所有键盘。
SWIFT 3.0不同的风格,使用了以前一些答案的部分内容。
func addToolbarToNumberPad()
{
let numberPadToolbar: UIToolbar = UIToolbar()
numberPadToolbar.isTranslucent = true
numberPadToolbar.items=[
UIBarButtonItem(barButtonSystemItem: .cancel, target: self, action: #selector(self.cancelAction)),
UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: self, action: nil),
UIBarButtonItem(title: "Custom", style: .done, target: self, action: #selector(self.customAction)),
UIBarButtonItem(barButtonSystemItem: .done, target: self, action: #selector(self.doneAction)),
]
numberPadToolbar.sizeToFit()
textField.inputAccessoryView = numberPadToolbar
}
func cancelAction()
{
textField.resignFirstResponder()
}
func customAction()
{
textField.resignFirstResponder()
}
func doneAction()
{
textField.resignFirstResponder()
}
override func viewDidLoad()
{
super.viewDidLoad()
self.addToolbarToNumberPad()
}
let pickerView = UIPickerView()
var yearpickerToolbar: UIToolbar?
func createPickerView() {
pickerView.delegate = self
textfield.inputView = pickerView }
func dismissPickerView() {
let toolBar = UIToolbar()
toolBar.sizeToFit()
toolBar.isUserInteractionEnabled = true
textfield.inputAccessoryView = toolBar
textfield.delegate = self
yearpickerToolbar = UIToolbar()
yearpickerToolbar?.autoresizingMask = .flexibleHeight
//add buttons
let cancelButton = UIBarButtonItem(barButtonSystemItem: .cancel, target: self, action:#selector(cancelBtnClicked(_:)))
cancelButton.tintColor = UIColor.blue
let flexSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
let doneButton = UIBarButtonItem(title: "Done", style: .plain , target: self, action: #selector(self.doneBtnClicked(_ :) ))
doneButton.tintColor = UIColor.blue
doneButton.setTitleTextAttributes([NSAttributedString.Key.foregroundColor:
UIColor.black], for: .normal)
cancelButton.setTitleTextAttributes([NSAttributedString.Key.foregroundColor:
UIColor.black], for: .normal)
yearpickerToolbar?.items = [cancelButton, flexSpace, doneButton]
textfield.inputAccessoryView = yearpickerToolbar }
@objc func cancelBtnClicked(_ button: UIBarButtonItem?) {
self.view.endEditing(true)
}
@objc func doneBtnClicked(_ button: UIBarButtonItem?) {
self.view.endEditing(true)
}
所有这些关于找到键盘视图并在第三行添加done按钮的实现(这就是为什么按钮。y = 163 b/c键盘的高度是216)是脆弱的,因为iOS不断改变视图层次结构。例如,上述代码都不适用于iOS9。
我认为更安全的方法是找到最顶层的视图,通过[[UIApplication sharedApplication] windows] lastObject],并在它的左下角添加按钮,doneButton.frame = CGRectMake(0, screen_height - 53,106,53);//人像模式
这是最新的代码。只包括 在你的viewController中导入"UIViewController+NumPadReturn.h"
这里是。h
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
@interface UIViewController (NumPadReturn)
@end
还有。m
#import "UIViewController+NumPadReturn.h"
@implementation UIViewController (NumPadReturn)
-(void) viewDidLoad{
// add observer for the respective notifications (depending on the os version)
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 3.2) {
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardDidShow:)
name:UIKeyboardDidShowNotification
object:nil];
} else {
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillShow:)
name:UIKeyboardWillShowNotification
object:nil];
}
}
- (void)keyboardWillShow:(NSNotification *)note {
// if clause is just an additional precaution, you could also dismiss it
if ([[[UIDevice currentDevice] systemVersion] floatValue] < 3.2) {
[self addButtonToKeyboard];
}
}
- (void)keyboardDidShow:(NSNotification *)note {
// if clause is just an additional precaution, you could also dismiss it
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 3.2) {
[self addButtonToKeyboard];
}
}
- (void)addButtonToKeyboard {
// create custom button
UIButton *doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
doneButton.frame = CGRectMake(0, 163, 106, 53);
doneButton.adjustsImageWhenHighlighted = NO;
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 3.0) {
[doneButton setImage:[UIImage imageNamed:@"DoneUp3.png"] forState:UIControlStateNormal];
[doneButton setImage:[UIImage imageNamed:@"DoneDown3.png"] forState:UIControlStateHighlighted];
} else {
[doneButton setImage:[UIImage imageNamed:@"DoneUp.png"] forState:UIControlStateNormal];
[doneButton setImage:[UIImage imageNamed:@"DoneDown.png"] forState:UIControlStateHighlighted];
}
[doneButton addTarget:self action:@selector(doneButton:) forControlEvents:UIControlEventTouchUpInside];
// locate keyboard view
UIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];
UIView* keyboard;
for(int i=0; i<[tempWindow.subviews count]; i++) {
keyboard = [tempWindow.subviews objectAtIndex:i];
// keyboard found, add the button
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 3.2) {
if([[keyboard description] hasPrefix:@"<UIPeripheralHost"] == YES)
[keyboard addSubview:doneButton];
} else {
if([[keyboard description] hasPrefix:@"<UIKeyboard"] == YES)
[keyboard addSubview:doneButton];
}
}
}
- (void)doneButton:(id)sender {
NSLog(@"doneButton");
[self.view endEditing:TRUE];
}
@end