Interpretation and analysis of WeChat applet components: 3. swiper slider view

swiper sliderComponent description:

• Slider view container, used to display pictures, can be automatically switched by user dragging and setting Attributes control the switching of images

The following is the WXML code:

[XML] Plain text view Copy Code

[/align]
<swiper indicator-dots="{{indicatorDots}}"
  autoplay="{{autoplay}}" interval="{{interval}}" duration="{{duration}}">
  <block wx:for="{{imgUrls}}">
    <swiper-item>
      <image src="{{item}}" class="slide-image" width="355" height="150"/>
    </swiper-item>
  </block>
</swiper>
<button bindtap="changeIndicatorDots"> indicator-dots </button>
<button bindtap="changeAutoplay"> autoplay </button>
<slider bindchange="intervalChange" show-value min="500" max="2000"/> interval
<slider bindchange="durationChange" show-value min="1000" max="10000"/> duration

The following is the JS code:

[JavaScript] Plain text view Copy Code

page({
  data: {
    imgUrls: [
      'http://img02.tooopen.com/images/20150928/tooopen_sy_143912755726.jpg',
      'http://img06.tooopen.com/images/20160818/tooopen_sy_175866434296.jpg',
      'http://img06.tooopen.com/images/20160818/tooopen_sy_175833047715.jpg'
    ],
    indicatorDots: false,
    autoplay: false,
    interval: 5000,
    duration: 1000
  },
  changeIndicatorDots: function(e) {
    this.setData({
      indicatorDots: !this.data.indicatorDots
    })
  },
  changeAutoplay: function(e) {
    this.setData({
      autoplay: !this.data.autoplay
    })
  },
  intervalChange: function(e) {
    this.setData({
      interval: e.detail.value
    })
  },
  durationChange: function(e) {
    this.setData({
      duration: e.detail.value
    })
  }
})

[CSS] Plain text view Copy code

.swiper-item{
    display: block;
    height: 150px;
}

Main attributes:

• Set the content style of the interface, used for wxml
  

##EventHandleThe change event will be triggered when current changes, event.detail = {current: current}

Properties	Type	Default value	Description
##indicator-dots	Boolean	false	Whether to display the panel indicator point
autoplay	Boolean	false	Whether to switch automatically
current	Number	0	The index of the current page
#interval	Number	5000	Automatic switching time Interval
duration	Number	1000	Sliding animation duration
bindchange

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