微信小程序之UI与容器组件介绍

微信小程序 UI与容器组件总结

   1.总结与概述

   2.容器组件

           2.1 组件容器（view）

           2.2 可滚动视图容器(scroll-view)

           2.3 滑块视图容器（swiper）

1.总结与概述

1.1 UI组件总结图

1.2 概述

       小程序的UI组件也就是定义用户界面的一系列标签，类似于html标签。一个完整用户响应过程：事件触发——>UI组件接收到事件——>触发js函数响应事件——>更新UI

2.容器组件

2.1 容器组件(view)

   (1)总结

   (2)例子

       效果图

       page.wxml

<view>
 <text class="row-view-title">水平布局：</text>
 <view class="flex-wrp-row">
  <view class="flex-item-red" hover="true" hover-class="hover-style"><text class="color-text">red</text></view>
  <view class="flex-item-green" hover="true" hover-class="hover-style"><text class="color-text">green</text></view>
  <view class="flex-item-blue" hover="true" hover-class="hover-style"><text class="color-text">blue</text></view>
 </view>
</view>
<view>
 <text class="column-view-title">垂直布局：</text>
 <view class="flex-wrp-column" >
  <view class="flex-item-red" hover="true" hover-class="hover-style"><text class="color-text" >red</text></view>
  <view class="flex-item-green" hover="true" hover-class="hover-style"><text class="color-text">green</text></view>
  <view class="flex-item-blue" hover="true" hover-class="hover-style"><text class="color-text">blue</text></view>
 </view>
</view>

       page.wxss

.flex-item-red{
 background-color: red;
 height: 200rpx;
 width: 200rpx;
 text-align: center;
 line-height: 200rpx;
}
.flex-item-green{
 background-color: green;
 height: 200rpx;
 width: 200rpx;
 text-align: center;
 line-height: 200rpx
}
.flex-item-blue{
 background-color: blue;
 height: 200rpx;
 width: 200rpx;
 text-align: center; 
 line-height: 200rpx 
}
.flex-wrp-row{
 flex-direction: row;
 display: flex;
 margin-left: 10rpx;
 margin-top: 20rpx;
}
.flex-wrp-column{
 flex-direction: column;
 display: flex;
 margin-left: 10rpx;
  margin-top: 20rpx;
}
.color-text{
 color: snow;
 font-family: 'Times New Roman', Times, serif;
 font-weight: bold;
}
.hover-style{
 background-color: black;
}
.row-view-title,.column-view-title{
 margin-left: 20rpx;
 font-family: 'Times New Roman', Times, serif;
 font-weight: bold;
}
/*重要属性：
 display: flex; //与display：box;是类似，是flexbox的最新语法格式，有更好的适配效果
 flex-direction: column; //表示子布局垂直布局
 flex-direction: row; //表示子布局为水平布局
*/

2.2 可滚动视图容器(scroll-view)

   (1) 总结

    (2) 例子

      效果图：

    page.wxml

<view>
<text>水平滚动布局</text>
</view>
<view class="x-view">
 <scroll-view class="scroll-view-x" scroll-x="true" bindscrolltoupper="scrollXToUpper" bindscrolltolower="scrollXToLower" bindscroll="scroll" scroll-left="0" scroll-into-view="pw_green">
  <view id="green" class="x_green"></view>
  <view id="red" class="x_red"></view>
  <view id="yellow" class="x_yellow"></view>
  <view id="blue" class="x_blue"></view>
 </scroll-view>
</view>
<view>
<text>垂直滚动布局</text>
</view>
<view class="y-view">
 <scroll-view class="scroll-view-y" scroll-y="true" bindscrolltoupper="scrollYToUpper" bindscrolltolower="scrollYToLower" bindscroll="scroll" scroll-top="0" scroll-into-view="pw_green">
  <view id="green" class="y_green"></view>
  <view id="red" class="y_red"></view>
  <view id="yellow" class="y_yellow"></view>
  <view id="blue" class="y_blue"></view>
 </scroll-view>
</view>

   page.wxss

.x_green{
 background-color: green;
 width: 500rpx;
 height: 300rpx;
 display: inline-flex;
}
.x_red{
 background-color: red;
 width: 500rpx;
 height: 300rpx;
 display: inline-flex;
 
}
.x_blue{
 background-color: blue;
 width: 500rpx;
 height: 300rpx;
 display: inline-flex; 
}
.x_yellow{
 background-color: yellow;
 width: 500rpx;
 height: 300rpx; 
 display: inline-flex; 
}
.y_green{
 background-color: green;
 width: 100%;
 height: 300rpx;
}
.y_red{
 background-color: red;
 width: 100%;
 height: 300rpx;
}
.y_yellow{
 background-color: yellow;
 width: 100%;
 height: 300rpx;
}
.y_blue{
 background-color: blue;
 width: 100%;
 height: 300rpx;
}
.scroll-view-x{
 display: flex;
 white-space: nowrap;
 width: 100%;
 margin-bottom: 20px;
 margin-top: 10px; 
 height: 300rpx; 
}
.scroll-view-y{
 height: 400rpx;
}
/*重要属性：
 white-space: nowrap;//设置内部元素不换行显示，与display: inline-flex;属性联合使用才会有水平布局的效果
*/

   page.js

//index.js
//获取应用实例
var app = getApp()
//var color_index=['green','red','yellow','blue'];
Page({
 data:{
 toview:'red',
 },
/*滑动到左边触发*/
scrollXToUpper:function(){
 console.log('scrollXToUpper')
},
/*滑动到右边触发 */
scrollXToLower:function(){
 console.log('scrollXToLower')
},
/*滑动到顶部触发*/
scrollYToUpper:function(){
 console.log('scrollYToUpper')
},
/*滑动到左边触发 */
scrollYToLower:function(){
 console.log('scrollYToLower')
},
/*滑动触发 */
scroll:function(){
 console.log("scroll")
},
onLoad: function () {
 console.log('onLoad')
 var that = this
 },
})

2.3 滑块视图容器（swiper）

(1)总结

(2)例子

   效果图：

    page.wxml

<swiper data-current="0" current="0" bindchange="itemChangeFunc" circular="true" indicator-dots="pw_indicatorDots"
 autoplay="pw_autoplay" interval="pw_interval" duration="pw_duration">
 <block wx:for="pw_imgUrls" wx:key="swiperkeys">
  <swiper-item>
  <image src="pw_item" class="slide-image" width="355" height="150"/>
  </swiper-item>
 </block>
</swiper>

 page.js

//game.js
Page({
 data: {
 imgUrls: [
  '/image/wechat.png',
  '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: true,
 autoplay: true,
 interval: 3000,
 duration: 1000,
 current:1,
 },
 
 durationChange: function(e) {
 this.setData({
  duration: e.detail.value
 })
 },
 durationChange: function(e) {
 this.setData({
  duration: e.detail.value
 })
 },
itemChangeFunc:function(e){
 // console.log(e.target.dataset.current)
 
 console.log(e.detail)
}
})

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