如何在iPhone上制作返回键使键盘消失？ [英] How to make return key on iPhone make keyboard disappear?

问题描述

我有两个 UITextFields （例如用户名和密码），但是当按下键盘上的返回键时我无法摆脱键盘。我怎样才能做到这一点？

I have two UITextFields (e.g. username and password) but I cannot get rid of the keyboard when pressing the return key on the keyboard. How can I do this?

推荐答案

首先，您需要在视图中符合 UITextFieldDelegate 协议/ ViewController的头文件如下：

First you need to conform to the UITextFieldDelegate Protocol in your View/ViewController's header file like this:

@interface YourViewController : UIViewController <UITextFieldDelegate>

然后在你的.m文件中你需要实现以下 UITextFieldDelegate 协议方法：

Then in your .m file you need to implement the following UITextFieldDelegate protocol method:

- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
    [textField resignFirstResponder];

    return YES;
}

[textField resignFirstResponder]; 确保键盘被解除。

确保在.m中初始化文本字段后，将view / viewcontroller设置为UITextField的委托： / p>

Make sure you're setting your view/viewcontroller to be the UITextField's delegate after you init the textfield in the .m:

yourTextField = [[UITextField alloc] initWithFrame:yourFrame];
//....
//....
//Setting the textField's properties
//....    
//The next line is important!!
yourTextField.delegate = self; //self references the viewcontroller or view your textField is on

这篇关于如何在iPhone上制作返回键使键盘消失？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！