How to implement step bar component in uniapp
How to implement the step bar component in uniapp
The step bar is a common interface element used to display the progress and status of the current operation. In uniapp, we can implement a step bar component by customizing the component. This article will introduce in detail how to implement the step bar component, and attach sample code for reference.
Design of step bar component
Before we start writing code, we need to design the style and structure of the step bar component. A basic step bar component usually contains the following parts:
- Step line: used to connect each step and represent the sequence of the operation process.
- Step node: icon or text representing each step.
- Current step highlighting effect: Used to identify which step is currently in progress.
- Auxiliary information: such as the title and description of the step, etc.
Based on the above design, we can create a custom component named StepBar
to implement the step bar component.
Code implementation
First, create a new component file StepBar.vue
in the uniapp project, and copy the following code to the file:
<template> <view class="step-bar"> <view class="step-line" :style="{width: line}" ></view> <view v-for="(step, index) in steps" :key="index" class="step-node" :class="{'active': index === current}"> <image v-if="!step.text" :src="step.icon" class="step-icon" /> <text v-else class="step-text">{{step.text}}</text> </view> </view> </template> <script> export default { props: { steps: { type: Array, default: () => [] }, current: { type: Number, default: 0 } }, computed: { line() { // 计算步骤线的宽度 return (100 / (this.steps.length - 1) * this.current) + '%'; } } } </script> <style> .step-bar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; } .step-line { height: 2px; background-color: #ebeef5; } .step-node { display: flex; align-items: center; justify-content: center; width: 50px; height: 50px; border-radius: 50%; background-color: #ebeef5; } .step-node.active { background-color: #409eff; } .step-icon { width: 30px; height: 30px; } .step-text { font-size: 12px; color: #333; } </style>
The above code implements the basic functions of the StepBar
component. This component accepts two props parameters:
-
steps
: an array containing each step, each step containsicon
andtext
Two fields. -
current
: The index of the current step.
StepBar
component dynamically calculates the width of the step line through the calculated property line
to achieve the highlight effect of the step bar. Among them, the v-for
instruction is used to traverse the steps
array and determine whether to activate the step based on the index of the current step.
How to use the step bar component
In the page where you need to use the step bar component, you first need to introduce the StepBar
component and define it# in data
##stepsArray and
currentvariable. Then, pass
steps and
current as props of the
StepBar component to the component to render the step bar on the page.
<template> <view> <step-bar :steps="steps" :current="current" /> </view> </template> <script> import stepBar from '@/components/StepBar.vue'; export default { components: { stepBar }, data() { return { steps: [ { icon: '~/static/icon1.png' }, { text: '步骤2' }, { text: '步骤3' }, { text: '步骤4' }, ], current: 2 } } } </script>In the above example, we created a
StepBar component and defined a 4-step The
steps array. Specify that the current step is 3 by assigning a value to
current. The step bar on the page will appear as:
The above is the detailed content of How to implement step bar component in uniapp. For more information, please follow other related articles on the PHP Chinese website!

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