微信小程序之轮播图

今天记录一下微信小程序开发时，轮播图的效果时怎么实现的。话不多说，直接上代码：

<!-- 1. 首页轮播图 -->
  <view>
    <swiper class="my-swiper" 
              autoplay="true" 
              indicator-dots="true" 
              indicator-active-color="#fff"
              circular="true">
        <block wx:for="{{imgUrls}}">
          <swiper-item class="sw-img">
              <image src="{{item}}" mode="widthFix"></image>
          </swiper-item>
        </block>
      </swiper>
  </view>

轮播，就用swiper组件，里面有很多属性，一般以下几个比较常用：

• autoplay="true"：设置自动播放
• indicator-dots="true"： 是否显示面板指示点
• indicator-active-color="#fff"： 当前选中的指示点颜色
• circular="true"： 是否采用衔接滑动
• interval： 自动切换时间间隔，默认5000ms

js里面的数据：

Page({
  data: {
    imgUrls: ["https://picabstract-preview-ftn.weiyun.com/ftn_pic_abs_v3/3c5e6138079dc63ebe3688afff0a63b0fb56fbe1702bb754e33c4ca874b872ced8df2f995cd0d7ae9ce9db487f8f90a7?pictype=scale&from=30013&version=3.3.3.3&uin=522083376&fname=Natural.png&size=750",
  "https://picabstract-preview-ftn.weiyun.com/ftn_pic_abs_v3/4e5e95cc21cb5e2b2f5ecfdc0f7406dbc731207642cda81a9b880c79c4ee624fc37b5d4548d8cad8f7c2ec585bef9c85?pictype=scale&from=30013&version=3.3.3.3&uin=522083376&fname=DSC_0026.JPG&size=750",
  'https://picabstract-preview-ftn.weiyun.com/ftn_pic_abs_v3/6283d77c69833853929662a4e86f089ec4570433af79a4ab614dd90d05f2cd6c5ab142f2df15172714a76bdced89d82f?pictype=scale&from=30013&version=3.3.3.3&uin=522083376&fname=DSC_0061.JPG&size=750',
  'https://picabstract-preview-ftn.weiyun.com/ftn_pic_abs_v3/55d0ac2a67bb6d57a343a61070ea23de0457a536ebe9415e1b39ec8c3c6b3fe343b70f1a1a1c211d3c04e97d5d1c30be?pictype=scale&from=30013&version=3.3.3.3&uin=522083376&fname=DSC_0059.JPG&size=750',
  'https://picabstract-preview-ftn.weiyun.com/ftn_pic_abs_v3/0d2bf2e9fdd34a7167b65750b3d808acda73ff0541f78d288bd636a723bf51bdbe191aa297de4d1bd72a427bb9ca6f41?pictype=scale&from=30013&version=3.3.3.3&uin=522083376&fname=DSC_0058.JPG&size=750'
    ]
  }，