How to modify the uniapp checked style

With the rapid development of mobile terminal development, uni-app, as a cross-platform development framework, has been accepted by more and more developers. In uni-app, we often use some basic components, including checkbox components.

When using the checkbox component, we may need to modify its style to achieve better visual effects and user experience. This article will introduce how to modify the style of the checkbox component through the relevant API of uni-app.

1. The basic style of the check box component

First, let’s take a look at the basic style of the check box component:

<checkbox></checkbox>

In this code, we define Create a checkbox component named "checkbox" and set its name and value attributes. At this time, a default check box icon will be displayed, as shown below:

2. Modify the check box icon style

If we don’t If you are satisfied with the default check box icon style, you can achieve a personalized style by modifying the icon's color, size and other attributes.

First, we can modify the icon color by setting the color attribute of the checkbox component, for example:

<checkbox></checkbox>

This will change the color of the checkbox icon to red.

In addition, we can also use the style attributes of uni-app to modify the icon size, background color and other styles. For example, modify the icon size by setting the style attributes "width" and "height":

<checkbox></checkbox>

This will set the width and height of the check box icon to 30rpx.

Similarly, we can modify the background color by setting the "background-color" attribute:

<checkbox></checkbox>

This will change the background color of the check box icon to light gray.

3. Modify the style of the selected state of the check box

In addition to modifying the style of the check box icon, sometimes we also need to modify the style of the selected state. For example, we want the selected check box icon color to turn blue and add a "√" logo.

In response to this situation, uni-app provides a slot called "checked", which can insert customized content in the selected state. For example:

<checkbox>
  <view>√</view>
</checkbox>

In this code, we first define a checkbox component with the style "width: 30rpx; height: 30rpx;" and the color "#0077cc", and then define it inside Create a slot named "checked" and insert a √ symbol with the size "24rpx" and the color "#0077cc" into it.

In this way, when the user selects the check box, a blue √ symbol will appear.

4. Summary

In uni-app, through some simple APIs and style attributes, we can easily modify the style of the checkbox component to achieve personalized effects. I hope this article can help everyone use uni-app components in mobile development.

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