摘要：輪播有的功能應該都有及以上的版本應該都可以動畫效果用的是自帶的沒有做進一步的處理專注于做過測試應該沒有功能圖片自動輪播每張圖片對應下面的小圓圈紅色代表當前選中圖片前進和后退按鈕做了節流處理代碼

輪播有的功能,應該都有

angular2及以上的版本應該都可以

動畫效果用的是angular自帶的animations

css沒有做進一步的處理,專注于js

做過測試應該沒有bug

  carousel works!


  

      
      

            
      
        
    
 
    


    

            
    
    

        
        
    

import { Component, OnInit } from "@angular/core";
import {trigger,style,transition,query,animate,group} from "@angular/animations"
@Component({
  selector: "app-carousel",
  templateUrl: "./carousel.component.html",
  styleUrls: ["./carousel.component.css"],
    animations:[
      trigger("carousel",[
          transition(":increment",[
              group([
                  query(":enter",[
                        style({transform:"translateX(-100%)"}),
                        animate("1s")
                    ]),
                    query(":leave",[
                        animate("1s",style({transform:"translateX(100%)"}))
                    ])
                ]) 
            ]),
            transition(":decrement",[
              group([
                  query(":enter",[
                        style({transform:"translateX(100%)"}),
                        animate("1s")
                    ]),
                    query(":leave",[
                        animate("1s",style({transform:"translateX(-100%)"}))
                    ])
                ]) 
            ]),
        ])
    ]
})
export class CarouselComponent implements OnInit {
  url:string="../../../assets/"
  imgs=[
      {id:1,name:"1.jpg",state:true},
        {id:2,name:"2.jpg",state:false},
        {id:3,name:"3.jpg",state:false}
    ]
    state=0;
    id:number;
    i=0;
    switch=true
    execTime:number
  constructor() { }
  fn(){
      this.i++;
        if(this.i>this.imgs.length-1){
            this.i=0;
        }
      this.imgs.forEach(val=>{val.state=false})
        this.imgs[this.i].state=true;
        this.state+=0.1;
    }
  ngOnInit() {
    this.id=setInterval(this.fn.bind(this),3000) 
  }
  stop(){
      clearInterval(this.id)
    }
    start(){
      this.id=setInterval(this.fn.bind(this),3000) 
    }
    circleEnter(id){
      //console.log(id);
        this.i=id-1;
        this.imgs.forEach(val=>{val.state=false})
        this.imgs[id-1].state=true;
        //this.state+=0.1;
      this.stop();
    }
    circleLeave(){
      this.start();
    }
    go(){
      this.throttle(this.fn.bind(this),1500)
      //this.fn()
    }
    back(){
      let fn=function(){
          //console.log("exec fn");
          this.i--;
            if(this.i<0){
                this.i=this.imgs.length-1;
            }
            this.imgs.forEach(val=>{val.state=false})
            this.imgs[this.i].state=true;
            this.state-=0.1;
        }
      this.throttle(fn.bind(this),1500)
    }
    
  throttle(fn,interval){
        if(new Date().getTime()-this.execTime>interval){this.switch=true}
        console.log(this.switch);
      if(this.switch){
            fn();
            this.switch=false;
            this.execTime=new Date().getTime();
        }
        
    }
    
}

ul{
  position:relative;
  height:200px;
}
.imgP{
  position:absolute;
  list-style:none;
}
.circle{
  width:10px;
  height:10px;
  border-radius:50%;
  border:1px solid #000;
  float:left;
}
.color{
  background-color:red;
}