微信小程序开发:2.小程序组件

常用的视图容器类组件

View
1. 普通的视图区域类似于div常用来进行布局效果
scroll-view
1. 可以滚动的视图，常用来进行滚动列表区域
swiper and swiper-item
1. 轮播图的容器组件和轮播图的item项目组件

View组件的基本使用

案例1

<view class="container">
  <view>A</view>
  <view>B</view>
  <view>C</view>
</view>

/**index.wxss**/
.container view{
  width: 100px;
  height: 100px;
  text-align: center;
  line-height: 100px;
}

.container view:nth-child(1){
  background-color: lightblue;
}

.container view:nth-child(2){
  background-color: lightcoral;
}

.container view:nth-child(3){
  background-color: lightgreen;
}

.container {
  display: flex;
  justify-content: space-around;
}

案例2

//纵向滚动
<scroll-view class="container1" scroll-y>
  <view>A</view>
  <view>B</view>
  <view>C</view>
</scroll-view>

/**index.wxss**/
.container1 view{
  width: 100px;
  height: 100px;
  text-align: center;
  line-height: 100px;
}

.container1 view:nth-child(1){
  background-color: lightblue;
}

.container1 view:nth-child(2){
  background-color: lightcoral;
}

.container1 view:nth-child(3){
  background-color: lightgreen;
}

.container1 {
  border: 1px solid red;
  height: 120px;
  width: 100px;
}

swiper和swiper-item组件的使用

<swiper class="swiper-container" indicator-dots>
<!-- item one -->
  <swiper-item>
    <view class="item">A</view>
  </swiper-item>
<!-- item two -->
<swiper-item>
  <view class="item">B</view>
</swiper-item>
<!-- item three -->
<swiper-item>
  <view class="item">C</view>
</swiper-item>
</swiper>

/**index.wxss**/
.swiper-container{
  height: 300rpx;
}

.item{
  height: 300rpx;
  line-height: 300rpx;
  text-align: center;
}

swiper-item:nth-child(1) .item{
  background-color: lightskyblue;
}

swiper-item:nth-child(2) .item{
  background-color: lightcoral;
}
swiper-item:nth-child(3) .item{
  background-color: lightcyan;
}

swiper常用属性

常用的基础内容组件

text

文本组件，类似于HTML中的span是一个行内元素

rich-text

富文本组件，支持吧HTML字符串渲染为WXML结构

Button

按钮组件，比html按钮丰富，了一通过open-type属性调用微信提供各种功能（客服、转发、获取用户授权、获取用户信息等）

<!-- button组件的使用 -->
<view>通过type制定类型</view>
<button>默认按钮</button>
<button type="primary">主色调按钮</button>
<button type="warn">警告按钮</button>
<view>---mini 小尺寸按钮------</view>
<button size="mini">默认按钮</button>
<button size="mini" type="primary">主调颜色按钮</button>
<button size="mini" type="warn">警告按钮</button>
<view>plain镂空按钮</view>
<button type="primary" plain>默认按钮</button>
<button type="primary" plain>主色调按钮</button> 
<button type="warn">警告按钮</button>

image

图片组件，image默认宽度300px，高度240px

<view>
  <image src="./img/photo.png" mode=""/>
</view>

image组件的mode属性用来制定图片的裁剪和缩放模式，常用mode属性值如下：

navigator

导航组件，类似于HTML中a标签