【微信小程序】02 常用标签组件

轮播标签：

     轮播图
     <swiper>
      <!-- 轮播项 -->
      <swiper-item>1</swiper-item> 
      <swiper-item>2</swiper-item> 
      <swiper-item>3</swiper-item> 
      <swiper-item>4</swiper-item> 
      <swiper-item>5</swiper-item> 
     </swiper>

默认是可以直接拖拽滑动的，但是不会自己滚动，且不循环

嵌入图片进行轮播处理：

     轮播图
     <swiper>
      <!-- 轮播项 -->
      <!-- widthFix 宽度修复 -->
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
     </swiper>

设置指示点：

     <swiper indicator-dots>
      <!-- 轮播项 -->
      <!-- widthFix 宽度修复 -->
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
     </swiper>

默认的指示点是黑色的，这个效果很明显是看不见的：

可以设置指示点的颜色：

     <swiper indicator-dots indicator-color="white">
      <!-- 轮播项 -->
      <!-- widthFix 宽度修复 -->
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
     </swiper>

这样明显多了

设置选中的指示点颜色：

     轮播图
     <swiper indicator-dots indicator-color="white" indicator-active-color="skyblue">
      <!-- 轮播项 -->
      <!-- widthFix 宽度修复 -->
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
     </swiper>

如果要指示点不完全覆盖图片，可以使用rgba着色：

实现自动播放，和切换间隔设置：

     <swiper indicator-dots indicator-color="white" indicator-active-color="skyblue" autoplay interval="2000">
      <!-- 轮播项 -->
      <!-- widthFix 宽度修复 -->
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
     </swiper>

实现重复循环（轮播）：

     <swiper indicator-dots indicator-color="white" indicator-active-color="skyblue" autoplay interval="2000"circular>
      <!-- 轮播项 -->
      <!-- widthFix 宽度修复 -->
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
     </swiper>

更改轮播方向，垂直轮播：

垂直轮播的指示点是在右边这里了

     <swiper indicator-dots indicator-color="white" indicator-active-color="skyblue" autoplay interval="2000" circular vertical>
      <!-- 轮播项 -->
      <!-- widthFix 宽度修复 -->
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
     </swiper>

设置前后间距，故意露出前后的预展示：

     <swiper 
      indicator-dots 
      indicator-color="white" 
      indicator-active-color="skyblue" 
      autoplay 
      interval="2000" 
      circular 
      vertical
      previous-margin="10"
      next-margin="10"
      >
      <!-- 轮播项 -->
      <!-- widthFix 宽度修复 -->
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
      <swiper-item><image src="https://images2.alphacoders.com/116/thumb-1920-1161073.jpg" mode="widthFix"></image></swiper-item> 
     </swiper>

表单组件：

按钮：

     <button type="primary">按钮</button>
     <button type="default">按钮</button>
     <button type="warn">按钮</button>

发现下面两个样式太丑了

视频是说app/json设置了这个样式

{
  "pages":[
    "pages/index/index",
    "pages/logs/logs",
    "pages/pageA/pageA",
    "pages/pageB/pageB"
    
  ],
  "window":{
    "backgroundTextStyle":"light",
    "navigationBarBackgroundColor": "#fff",
    "navigationBarTitleText": "Weixin",
    "navigationBarTextStyle":"black"
  },
  "style": "v2",
  "sitemapLocation": "sitemap.json"
}

因为这个影响的

删除之后：

设置禁用状态：

<button type="primary" disabled="true">按钮4</button>

设置加载状态：

<button type="primary" loading="true">按钮4</button>

‘

设置微信开放能力，但是调试工具是不支持此功能的：

  <!-- 微信开放功能 -->
  <button open-type="contact">联系客服</button>

表单基本使用：

  <!-- 表单设置 -->
  <form 
    bindreset="resetMethod"
    bindsubmit="submitMethod"
  >

  <button form-type="submit">提交表单</button>
  <button form-type="reset">重置表单</button>
  
  </form>

属性 bindXXXX用于绑定执行的事件

复选框 checkbox:

  <checkbox value="" checked="true">选中</checkbox>
  <checkbox value="" >未选中</checkbox>

官方实例：

<view class="container">
  <view class="page-body">
    <view class="page-section page-section-gap">
      <view class="page-section-title">默认样式</view>
      <label class="checkbox">
        <checkbox value="cb" checked="true"/>选中
      </label>
      <label class="checkbox">
        <checkbox value="cb" />未选中
      </label>
    </view>
  
    <view class="page-section">
      <view class="page-section-title">推荐展示样式</view>
      <view class="weui-cells weui-cells_after-title">
        <checkbox-group bindchange="checkboxChange">
          <label class="weui-cell weui-check__label" wx:for="{{items}}" wx:key="{{item.value}}">
            <view class="weui-cell__hd">
              <checkbox value="{{item.value}}" checked="{{item.checked}}"/>
            </view>
            <view class="weui-cell__bd">{{item.name}}</view>
          </label>
        </checkbox-group>
      </view>
    </view>
  </view>
  
</view>

js:

Page({
  onShareAppMessage() {
    return {
      title: 'checkbox',
      path: 'page/component/pages/checkbox/checkbox'
    }
  },

  data: {
    items: [
      {value: 'USA', name: '美国'},
      {value: 'CHN', name: '中国', checked: 'true'},
      {value: 'BRA', name: '巴西'},
      {value: 'JPN', name: '日本'},
      {value: 'ENG', name: '英国'},
      {value: 'FRA', name: '法国'}
    ]
  },

  checkboxChange(e) {
    console.log('checkbox发生change事件，携带value值为：', e.detail.value)

    const items = this.data.items
    const values = e.detail.value
    for (let i = 0, lenI = items.length; i < lenI; ++i) {
      items[i].checked = false

      for (let j = 0, lenJ = values.length; j < lenJ; ++j) {
        if (items[i].value === values[j]) {
          items[i].checked = true
          break
        }
      }
    }

输入项 Input：

<view class="page-body">
  <view class="page-section">
    <view class="weui-cells__title">可以自动聚焦的input</view>
    <view class="weui-cells weui-cells_after-title">
      <view class="weui-cell weui-cell_input">
        <input class="weui-input" auto-focus placeholder="将会获取焦点"/>
      </view>
    </view>
  </view>
  <view class="page-section">
    <view class="weui-cells__title">控制最大输入长度的input</view>
    <view class="weui-cells weui-cells_after-title">
      <view class="weui-cell weui-cell_input">
        <input class="weui-input" maxlength="10" placeholder="最大输入长度为10" />
      </view>
    </view>
  </view>
  <view class="page-section">
    <view class="weui-cells__title">实时获取输入值：{{inputValue}}</view>
    <view class="weui-cells weui-cells_after-title">
      <view class="weui-cell weui-cell_input">
        <input class="weui-input"  maxlength="10" bindinput="bindKeyInput" placeholder="输入同步到view中"/>
      </view>
    </view>
  </view>
  <view class="page-section">
    <view class="weui-cells__title">控制输入的input</view>
    <view class="weui-cells weui-cells_after-title">
      <view class="weui-cell weui-cell_input">
        <input class="weui-input"  bindinput="bindReplaceInput" placeholder="连续的两个1会变成2" />
      </view>
    </view>
  </view>
  <view class="page-section">
    <view class="weui-cells__title">控制键盘的input</view>
    <view class="weui-cells weui-cells_after-title">
      <view class="weui-cell weui-cell_input">
        <input class="weui-input"  bindinput="bindHideKeyboard" placeholder="输入123自动收起键盘" />
      </view>
    </view>
  </view>
  <view class="page-section">
    <view class="weui-cells__title">数字输入的input</view>
    <view class="weui-cells weui-cells_after-title">
      <view class="weui-cell weui-cell_input">
        <input class="weui-input" type="number" placeholder="这是一个数字输入框" />
      </view>
    </view>
  </view>
  <view class="page-section">
    <view class="weui-cells__title">密码输入的input</view>
    <view class="weui-cells weui-cells_after-title">
      <view class="weui-cell weui-cell_input">
        <input class="weui-input" password type="text" placeholder="这是一个密码输入框" />
      </view>
    </view>
  </view>
  <view class="page-section">
    <view class="weui-cells__title">带小数点的input</view>
    <view class="weui-cells weui-cells_after-title">
      <view class="weui-cell weui-cell_input">
        <input class="weui-input" type="digit" placeholder="带小数点的数字键盘"/>
      </view>
    </view>
  </view>
  <view class="page-section">
    <view class="weui-cells__title">身份证输入的input</view>
    <view class="weui-cells weui-cells_after-title">
      <view class="weui-cell weui-cell_input">
        <input class="weui-input" type="idcard" placeholder="身份证输入键盘" />
      </view>
    </view>
  </view>
  <view class="page-section">
    <view class="weui-cells__title">控制占位符颜色的input</view>
    <view class="weui-cells weui-cells_after-title">
      <view class="weui-cell weui-cell_input">
        <input class="weui-input" placeholder-style="color:#F76260" placeholder="占位符字体是红色的" />
      </view>
    </view>
  </view>
</view>

JS：

Page({
  data: {
    focus: false,
    inputValue: ''
  },
  bindKeyInput: function (e) {
    this.setData({
      inputValue: e.detail.value
    })
  },
  bindReplaceInput: function (e) {
    var value = e.detail.value
    var pos = e.detail.cursor
    var left
    if (pos !== -1) {
      // 光标在中间
      left = e.detail.value.slice(0, pos)
      // 计算光标的位置
      pos = left.replace(/11/g, '2').length
    }

    // 直接返回对象，可以对输入进行过滤处理，同时可以控制光标的位置
    return {
      value: value.replace(/11/g, '2'),
      cursor: pos
    }

    // 或者直接返回字符串,光标在最后边
    // return value.replace(/11/g,'2'),
  },
  bindHideKeyboard: function (e) {
    if (e.detail.value === '123') {
      // 收起键盘
      wx.hideKeyboard()
    }
  }
})

开关按钮 Switch：

<view class="page">
    <view class="page__hd">
        <text class="page__title">switch</text>
        <text class="page__desc">开关</text>
    </view>
    <view class="page__bd">
        <view class="section section_gap">
            <view class="section__title">type="switch"</view>
            <view class="body-view">
                <switch checked="{{switch1Checked}}" bindchange="switch1Change"/>
            </view>
        </view>

        <view class="section section_gap">
            <view class="section__title">type="checkbox"</view>
            <view class="body-view">
                <switch type="checkbox" checked="{{switch2Checked}}" bindchange="switch2Change"/>
            </view>
        </view>
    </view>
</view>

JS:

var pageData = {
  data: {
    switch1Checked: true,
    switch2Checked: false,
    switch1Style: '',
    switch2Style: 'text-decoration: line-through'
  }
}
for (var i = 1; i <= 2; ++i) {
  (function (index) {
    pageData[`switch${index}Change`] = function (e) {
      console.log(`switch${index}发生change事件，携带值为`, e.detail.value)
      var obj = {}
      obj[`switch${index}Checked`] = e.detail.value
      this.setData(obj)
      obj = {}
      obj[`switch${index}Style`] = e.detail.value ? '' : 'text-decoration: line-through'
      this.setData(obj)
    }
  })(i)
}
Page(pageData)

Icon 提示图标：

<view class="container">
  <view class="icon-box">
    <icon class="icon-box-img" type="success" size="93"></icon>
    <view class="icon-box-ctn">
      <view class="icon-box-title">成功</view>
      <view class="icon-box-desc">用于表示操作顺利完成</view>
    </view>
  </view>
  <view class="icon-box">
    <icon class="icon-box-img" type="info" size="93"></icon>
    <view class="icon-box-ctn">
      <view class="icon-box-title">提示</view>
      <view class="icon-box-desc">用于表示信息提示；也常用于缺乏条件的操作拦截，提示用户所需信息</view>
    </view>
  </view>
  <view class="icon-box">
    <icon class="icon-box-img" type="warn" size="93" color="#C9C9C9"></icon>
    <view class="icon-box-ctn">
      <view class="icon-box-title">普通警告</view>
      <view class="icon-box-desc">用于表示操作后将引起一定后果的情况；也用于表示由于系统原因而造成的负向结果</view>
    </view>
  </view>
  <view class="icon-box">
    <icon class="icon-box-img" type="warn" size="93"></icon>
    <view class="icon-box-ctn">
      <view class="icon-box-title">强烈警告</view>
      <view class="icon-box-desc">用于表示由于用户原因造成的负向结果；也用于表示操作后将引起不可挽回的严重后果的情况</view>
    </view>
  </view>
  <view class="icon-box">
    <icon class="icon-box-img" type="waiting" size="93"></icon>
    <view class="icon-box-ctn">
      <view class="icon-box-title">等待</view>
      <view class="icon-box-desc">用于表示等待，告知用户结果需等待</view>
    </view>
  </view>
  <view class="icon-box">
    <view class="icon-small-wrp">
      <icon class="icon-small" type="success_no_circle" size="23"></icon>
    </view>
    <view class="icon-box-ctn">
      <view class="icon-box-title">多选控件图标_已选择</view>
      <view class="icon-box-desc">用于多选控件中，表示已选择该项目</view>
    </view>
  </view>
  <view class="icon-box">
    <view class="icon-small-wrp">
      <icon class="icon-small" type="circle" size="23"></icon>
    </view>
    <view class="icon-box-ctn">
      <view class="icon-box-title">多选控件图标_未选择</view>
      <view class="icon-box-desc">用于多选控件中，表示该项目可被选择，但还未选择</view>
    </view>
  </view>
  <view class="icon-box">
    <view class="icon-small-wrp">
      <icon class="icon-small" type="warn" size="23"></icon>
    </view>
    <view class="icon-box-ctn">
      <view class="icon-box-title">错误提示</view>
      <view class="icon-box-desc">用于在表单中表示出现错误</view>
    </view>
  </view>
  <view class="icon-box">
    <view class="icon-small-wrp">
      <icon class="icon-small" type="success" size="23"></icon>
    </view>
    <view class="icon-box-ctn">
      <view class="icon-box-title">单选控件图标_已选择</view>
      <view class="icon-box-desc">用于单选控件中，表示已选择该项目</view>
    </view>
  </view>
  <view class="icon-box">
    <view class="icon-small-wrp">
      <icon class="icon-small" type="download" size="23"></icon>
    </view>
    <view class="icon-box-ctn">
      <view class="icon-box-title">下载</view>
      <view class="icon-box-desc">用于表示可下载</view>
    </view>
  </view>
  <view class="icon-box">
    <view class="icon-small-wrp">
      <icon class="icon-small" type="info_circle" size="23"></icon>
    </view>
    <view class="icon-box-ctn">
      <view class="icon-box-title">提示</view>
      <view class="icon-box-desc">用于在表单中表示有信息提示</view>
    </view>
  </view>
  <view class="icon-box">
    <view class="icon-small-wrp">
      <icon class="icon-small" type="cancel" size="23"></icon>
    </view>
    <view class="icon-box-ctn">
      <view class="icon-box-title">停止或关闭</view>
      <view class="icon-box-desc">用于在表单中，表示关闭或停止</view>
    </view>
  </view>
  <view class="icon-box">
    <view class="icon-small-wrp">
      <icon class="icon-small" type="search" size="14"></icon>
    </view>
    <view class="icon-box-ctn">
      <view class="icon-box-title">搜索</view>
      <view class="icon-box-desc">用于搜索控件中，表示可搜索</view>
    </view>
  </view>

</view>

JS:

Page({
  data: {
    iconSize: [20, 30, 40, 50, 60, 70],
    iconColor: [
      'red', 'orange', 'yellow', 'green', 'rgb(0,255,255)', 'blue', 'purple'
    ],
    iconType: [
      'success', 'success_no_circle', 'info', 'warn', 'waiting', 'cancel', 'download', 'search', 'clear'
    ]
  }
})

图标。组件属性的长度单位默认为px，2.4.0起支持传入单位(rpx/px)。

属性	类型	默认值	必填	说明	最低版本
type	string		是	icon的类型，有效值：success, success_no_circle, info, warn, waiting, cancel, download, search, clear	1.0.0
size	number/string	23	否	icon的大小	1.0.0
color	string		否	icon的颜色，同css的color	1.0.0

进度条 Progress:

<view class="progress-box">
  <progress percent="20" show-info stroke-width="3"/>
</view>

<view class="progress-box">
  <progress percent="40" active stroke-width="3" />
  <icon class="progress-cancel" type="cancel"></icon>
</view>

<view class="progress-box">
  <progress percent="60" active stroke-width="3" />
</view>

<view class="progress-box">
  <progress percent="80" color="#10AEFF" active stroke-width="3" />
</view>

属性设置：

进度条。组件属性的长度单位默认为px，2.4.0起支持传入单位(rpx/px)。

属性	类型	默认值	必填	说明	最低版本
percent	number		否	百分比0~100	1.0.0
show-info	boolean	false	否	在进度条右侧显示百分比	1.0.0
border-radius	number/string	0	否	圆角大小	2.3.1
font-size	number/string	16	否	右侧百分比字体大小	2.3.1
stroke-width	number/string	6	否	进度条线的宽度	1.0.0
color	string	#09BB07	否	进度条颜色（请使用activeColor）	1.0.0
activeColor	string	#09BB07	否	已选择的进度条的颜色	1.0.0
backgroundColor	string	#EBEBEB	否	未选择的进度条的颜色	1.0.0
active	boolean	false	否	进度条从左往右的动画	1.0.0
active-mode	string	backwards	否	backwards: 动画从头播；forwards：动画从上次结束点接着播	1.7.0
duration	number	30	否	进度增加1%所需毫秒数	2.8.2
bindactiveend	eventhandle		否	动画完成事件	2.4.1