How to close ios keyboard in jquery

In mobile web development, sometimes we need to close the soft keyboard after the input box gains focus to better display the page content. In the iOS system, jQuery can be used to achieve this function. Below we will introduce the corresponding code implementation method in detail.

1. Introduction

jQuery is a very powerful JavaScript library that provides us with convenient DOM operations and event binding methods. By using jQuery, we can easily manipulate DOM elements, modify styles, bind events and other operations. In iOS, we can use jQuery to operate the input box and realize the function of automatically closing the soft keyboard.

2. Code implementation

The code implementation of jQuery is very simple and can be completed with only a few lines of code. The specific implementation code is as follows:

$(document).ready(function() {
    $('input, textarea').on('focus', function(e) {
        e.preventDefault();
        $('[data-toggle="keyboard"]').blur();
    });
});

Here we bind the focus events of the input and textarea elements to gain focus in the input box When, we cancel the processing of the default event through the e.preventDefault() method, and then use $('[data-toggle="keyboard"]').blur() to change the page The hidden <input> element gains focus and loses focus, so that the soft keyboard is automatically closed.

3. Notes

During the implementation process, there are several points that need attention:

1. Introducing the jQuery library into the page, you can use CDN to introduce it. Example: <script src="//cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script>
2. ## Since the iOS system will automatically enlarge the page content when the soft keyboard pops up, the

   meta tag of viewport needs to be set. The code is as follows:

   <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">

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3. You need to add a hidden

   <input> element on the page to get focus when the soft keyboard is closed. The code looks like this:

   <input type="text" class="keyboard" data-toggle="keyboard" style="position: absolute; top: 0; left: 0; width: 1px; height: 1px; opacity: 0;">

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   The

   data-toggle="keyboard" attribute here is used to find the element in the jQuery code.

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