iOS解雇键盘，UILabel故障 [英] iOS dismissing keyboard, UILabel malfunction

问题描述

我正在开发的iOS应用中遇到几个问题。

I'm running into a couple problems in the iOS app I'm developing.

一个是解雇键盘：当它在另外两个屏幕上工作时，有一个屏幕，它不会因某些原因而解雇：

One is dismissing the keyboard: while it works on another two screens, there's one screen where it won't dismiss for some reason:

Login.m

#import "Login.h"

@interface Login()
@end

@implementation Login

-(void) viewdDidLoad{

     [super viewDidLoad];

UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self
                action:@selector(dismissKeyboard)];

    [self.view addGestureRecognizer:tap];


}

-(void)dismissKeyboard {
    [_username resignFirstResponder];
    [_password resignFirstResponder];
    [_birth resignFirstResponder];
}

@end

我的第二个问题是尽管在其他屏幕上工作，屏幕顶部的UILabel仍无法加载：

And my second problem is that the UILabel at top the screen won't load despite working in the other screens:

Login.m

#import "Login.h"

@interface Login()
@end

@implementation Login

-(void) viewdDidLoad{

     [super viewDidLoad];

    _etiqueta = @"Introdueix el teu nom d'usuari, la contrasenya, i la teva data de naixement";
    self.label.text = self.etiqueta;
    self.label.numberOfLines = 4;
    self.label.textColor = [UIColor blackColor];

}


@end

<我的UILabel也是在故事板上创建的，是IBOutlet，我确保它已正确链接。

My UILabel is created on the storyboard as well, is IBOutlet and I've made sure that it's properly linked.

你能帮我解决这两个问题吗？

Can you help me solve these 2 problems?

推荐答案

使用此方法关闭键盘

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
[self.view endEditing:YES];
}

否则调用 textDelegate 方法

- (BOOL)textFieldShouldReturn:(UITextField *)textField
{

[textField resignFirstResponder];
return YES;
 }

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