我想知道如何使键盘消失时,用户触摸以外的UITextField。
当前回答
斯威夫特4
用这个扩展方法设置你的UIViewController,例如在viewDidLoad中:
override func viewDidLoad() {
super.viewDidLoad()
self.setupHideKeyboardOnTap()
}
即使点击导航栏,键盘也会被取消。
import UIKit
extension UIViewController {
/// Call this once to dismiss open keyboards by tapping anywhere in the view controller
func setupHideKeyboardOnTap() {
self.view.addGestureRecognizer(self.endEditingRecognizer())
self.navigationController?.navigationBar.addGestureRecognizer(self.endEditingRecognizer())
}
/// Dismisses the keyboard from self.view
private func endEditingRecognizer() -> UIGestureRecognizer {
let tap = UITapGestureRecognizer(target: self.view, action: #selector(self.view.endEditing(_:)))
tap.cancelsTouchesInView = false
return tap
}
}
其他回答
只是在这里添加我的版本如何在外部触摸时取消键盘。
viewDidLoad:
UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
[self.view addGestureRecognizer:singleTap];
在任何地方:
-(void)handleSingleTap:(UITapGestureRecognizer *)sender{
[textFieldName resignFirstResponder];
puts("Dismissed the keyboard");
}
看看这个,这是最简单的方法,
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
[self.view endEditing:YES];// this will do the trick
}
Or
这个库将处理包括滚动条自动滚动,点击空间隐藏键盘等…
https://github.com/michaeltyson/TPKeyboardAvoiding
这是
在本例中,aTextField是唯一的UITextField....如果有其他的uitextview,还有一点点事情要做。
// YourViewController.h
// ...
@interface YourViewController : UIViewController /* some subclass of UIViewController */ <UITextFieldDelegate> // <-- add this protocol
// ...
@end
// YourViewController.m
@interface YourViewController ()
@property (nonatomic, strong, readonly) UITapGestureRecognizer *singleTapRecognizer;
@end
// ...
@implementation
@synthesize singleTapRecognizer = _singleTapRecognizer;
// ...
- (void)viewDidLoad
{
[super viewDidLoad];
// your other init code here
[self.view addGestureRecognizer:self.singleTapRecognizer];
{
- (UITapGestureRecognizer *)singleTapRecognizer
{
if (nil == _singleTapRecognizer) {
_singleTapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTapToDismissKeyboard:)];
_singleTapRecognizer.cancelsTouchesInView = NO; // absolutely required, otherwise "tap" eats events.
}
return _singleTapRecognizer;
}
// Something inside this VC's view was tapped (except the navbar/toolbar)
- (void)singleTapToDismissKeyboard:(UITapGestureRecognizer *)sender
{
NSLog(@"singleTap");
[self hideKeyboard:sender];
}
// When the "Return" key is pressed on the on-screen keyboard, hide the keyboard.
// for protocol UITextFieldDelegate
- (BOOL)textFieldShouldReturn:(UITextField*)textField
{
NSLog(@"Return pressed");
[self hideKeyboard:textField];
return YES;
}
- (IBAction)hideKeyboard:(id)sender
{
// Just call resignFirstResponder on all UITextFields and UITextViews in this VC
// Why? Because it works and checking which one was last active gets messy.
[aTextField resignFirstResponder];
NSLog(@"keyboard hidden");
}
有一件事很重要……
添加手势识别到视图可以覆盖它的子视图。 所以只执行一个动作。 如果你想通过父视图和子视图执行多重识别操作… 你必须使用
tap.cancelsTouchesInView = false
完整代码如下:
let tap = UITapGestureRecognizer(target: self, action: #selector(self.superViewClicked))
tap.numberOfTapsRequired = 1
tap.delegate = self
tap.cancelsTouchesInView = false
self.view.addGestureRecognizer(tap)
@objc func superViewClicked(){
self.searchTF.resignFirstResponder()
}
在外面点击关闭软键盘的最佳解决方案是什么?
我将解释一个条件:
想想看:你在顶部有UISearchBar, 然后添加头表视图!
解决方法很简单:
跟踪软键盘打开或关闭 添加手势识别头视图 实现表视图didSelectRowAt的委托
完整的代码:
var isSoftKeyboardActive = false
override func viewDidLoad() {
var tap = UITapGestureRecognizer(target: self, action: #selector(self.tableHeaderClick))
tap.numberOfTapsRequired = 1
tap.delegate = self
tap.cancelsTouchesInView = false
self.headerOfTableView.addGestureRecognizer(tap)
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillDisappear), name: UIResponder.keyboardWillHideNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillAppear), name: UIResponder.keyboardWillShowNotification, object: nil)
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
NotificationCenter.default.removeObserver(self)
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
if isSoftKeyboardActive == true{
self.searchTF.resignFirstResponder()
}else{
selectedRow = indexPath.row
performSegue(withIdentifier: "segueWebview", sender: self)
}
}
@objc func tableHeaderClick(){
self.searchTF.resignFirstResponder()
}
@objc func keyboardWillAppear() {
isSoftKeyboardActive = true
}
@objc func keyboardWillDisappear() {
isSoftKeyboardActive = false
}
它是如何工作的:
如果软键盘是打开的,用户点击头软键盘关闭 如果软键盘打开,用户点击单元格,键盘关闭,不执行单元格点击
斯威夫特4 oneliner
view.addGestureRecognizer(UITapGestureRecognizer(target: view, action: #selector(UIView.endEditing(_:))))
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