angular6开发steps步骤条组件

1.先展示步骤条效果

2.使用angular命令快速创建组件

ng g c component/steps

创建的组件在component文件夹下面

打开steps.component.ts文件，可以看到selector的值是app-steps

import { Component, OnInit} from '@angular/core'; @Component({ selector: 'app-steps', templateUrl: './steps.component.html', styleUrls: ['./steps.component.css'] }) export class StepsComponent implements OnInit { constructor() { } ngOnInit() { } }

3.代码

steps.component.html

<div> <ul> <li *ngFor="let item of stepsData; let i=index" [ngClass]="{'liWidth': i+1 == stepsData.length}"> <div> <div [ngClass]="{'radioSelectDisabled': i+1>active}"></div> <div *ngIf="i+1 != stepsData.length" [ngClass]="{'lineDefaule': i+2>active}"> <span *ngIf="!!item.tips">{{item.tips}}</span> </div> </div> </li> </ul> <ul> <li *ngFor="let item of stepsData; let i=index"> <div *ngIf="!!item.title">{{item.title}}</div> <div *ngIf="!!item.description">{{item.description}}</div> </li> </ul> </div>

steps.component.ts

import { Component, OnInit, Input } from '@angular/core'; //引入Input @Component({ selector: 'app-steps', templateUrl: './steps.component.html', styleUrls: ['./steps.component.css'] }) export class StepsComponent implements OnInit { @Input() stepsData:any; @Input() active:string; constructor() { } ngOnInit() { console.log(!!!this.active) if(!!!this.active){ this.active="1"; } } }

steps.component.css

.steps ul{ display: flex; } li{ width: 100%; text-align: center; } .lineUl{ padding: 0px 10%; margin-bottom: 5px; } .liWidth{ width: 20px; } .stepsIcon{ display: flex; } .radioSelect { box-sizing: border-box; display: inline-block; border-radius: 100%; border: 1px solid #26a2ff; position: relative; width: 20px; height: 20px; vertical-align: middle; background-color: #26a2ff; } .radioSelect::after { border: 2px solid transparent; border-left: 0; border-top: 0; content: ' '; top: 3px; left: 6px; position: absolute; width: 4px; height: 8px; border-color: #fff; -webkit-transform: rotate(45deg) scale(1); transform: rotate(45deg) scale(1); -webkit-transition: -webkit-transform 0.2s; transition: -webkit-transform 0.2s; transition: transform 0.2s; transition: transform 0.2s, -webkit-transform 0.2s; } .radioSelectDisabled { background-color: #d9d9d9; border-color: #ccc; } .line{ display: block; flex: 1; height: 16px; border-bottom: 1px solid#26a2ff; margin-top: -5px; font-size: 12px; color: #26a2ff; } .lineDefaule{ border-bottom: 1px solid#d9d9d9; } .title{ font-size: 14px; } .description{ font-size: 12px; }

4在项目中引用创建的组件

<app-steps [stepsData]="stepsData" [active]='3'></app-steps>

public stepsData:any = [ { title:'步骤1', description:'描述文件' }, { title:'步骤2', description:'描述文件' }, { title:'步骤3', description:'描述文件', tips:'待开奖' }, { title:'步骤4', description:'描述文件' } ]; //stepsData:步骤条参数 //active：设置当前激活步骤，默认为1