Interpretation and analysis of the official components of WeChat mini programs: 1. view (view container)

view component description:
View container
Like p in HTML code, it can wrap other components or be wrapped inside other components. It is relatively free to use and has no fixed structure.

Usage of view component:
Wxml code of sample project:

[XML] Plain text view Copy code

    <view  class="btnGroup">
            <view class="item orange" >退格</view>
            <view class="item orange" >清屏</view>
            <view class="item orange" >+/-</view>
            <view class="item orange" >+</view>
          </view>
          <view  class="btnGroup">
            <view class="item blue" >9</view>
            <view class="item blue" >8</view>
            <view class="item blue" >7</view>
            <view class="item orange" >-</view>
          </view>
          <view  class="btnGroup">
            <view class="item blue" >6</view>
            <view class="item blue" >5</view>
            <view class="item blue" >4</view>
            <view class="item orange" >×</view>
          </view>
          <view  class="btnGroup">
            <view class="item blue" >3</view>
            <view class="item blue" >2</view>
            <view class="item blue" >1</view>
            <view class="item orange" >÷</view>
          </view>
          <view  class="btnGroup">
            <view class="item blue" >0</view>
            <view class="item blue" >.</view>
            <view class="item blue" >历史</view>
            <view class="item orange" >=</view>
          </view>

WXSS code for sample project:

[CSS] Plain text view Copy code

    .btnGroup{
        display:flex;
        flex-direction:row;
    }
    .orange{
        color: #fef4e9;
        border: solid 1px #da7c0c;
        background: #f78d1d;
    }
    .blue{
        color: #d9eef7;
        border: solid 1px #0076a3;
        background: #0095cd;
    }

View style Rendering of flex-direction: row:

WXML code is as follows

[XML] Plain text view Copy code

    <view class="flex-wrp">
        <view class="flex-item red" ></view>
        <view class="flex-item green" ></view>
        <view class="flex-item blue" ></view>
    </view>

The WXSS code is as follows:

[CSS] Plain text view Copy code

    .flex-wrp{
        height: 100px;
        display:flex;
        background-color: #FFFFFF;
    }
    .flex-item{
        width: 100px;
        height: 100px;
    }
    .red{
        background: red;
    }
    .green{
        background: green;
    }
    .blue{
        background: blue;
    }

View style flex-direction: Column rendering:

WXML code is as follows:

[XML] Plain text view Copy code

    <view class="flex-wrp column">
        <view class="flex-item" style="background: red"></view>
        <view class="flex-item" style="background: green"></view>
        <view class="flex-item" style="background: blue"></view>
    </view>

WXSS code is as follows:

[CSS] Plain text view Copy code

    .column{
       flex-direction:column;
    }
    .flex-item{
        width: 100px;
        height: 100px;
    }
    .flex-wrp{
        height: 100px;
        display:flex;
        background-color: #FFFFFF;
    }
    .red{
        background: red;
    }
    .green{
        background: green;
    }
    .blue{
        background: blue;
    }

View style justify-content: Rendering of flex-start:

The WXML code is as follows:

[XML] Plain text view Copy code

    <view class="flex-wrp flex-start">
        <view class="flex-item" style="background: red"></view>
        <view class="flex-item" style="background: green"></view>
        <view class="flex-item" style="background: blue"></view>
    </view>

The WXSS code is as follows:

[CSS] Plain text view Copy code

    .flex-start{
        flex-direction:row;
        justify-content: flex-start;
    }
    .flex-wrp{
        height: 100px;
        display:flex;
        background-color: #FFFFFF;
    }
    .flex-item{
        width: 100px;
        height: 100px;
    }
    .red{
        background: red;
    }
    .green{
        background: green;
    }
    .blue{
        background: blue;
    }

View style justify- content: Rendering of flex-end:

WXML code is as follows:

[XML] Plain text view Copy code

    <view class="flex-wrp flex-end">
        <view class="flex-item" style="background: red"></view>
        <view class="flex-item" style="background: green"></view>
        <view class="flex-item" style="background: blue"></view>
    </view>

The WXSS code is as follows:

[CSS] Plain text view Copy code

    .flex-end{
        flex-direction:row;
        justify-content: flex-end;
    }
    .flex-wrp{
        height: 100px;
        display:flex;
        background-color: #FFFFFF;
    }
    .flex-item{
        width: 100px;
        height: 100px;
    }
    .red{
        background: red;
    }
    .green{
        background: green;
    }
    .blue{
        background: blue;
    }

View style The rendering of justify-content: center:

WXML code is as follows:

[XML] Plain text view Copy code

    <view class="flex-wrp justify-content-center">
        <view class="flex-item" style="background: red"></view>
        <view class="flex-item" style="background: green"></view>
        <view class="flex-item" style="background: blue"></view>
    </view>

The WXSS code is as follows:

[CSS] Plain text view Copy code

    .justify-content-center{
        flex-direction:row;
        justify-content: center;
    }
    .flex-wrp{
        height: 100px;
        display:flex;
        background-color: #FFFFFF;
    }
    .flex-item{
        width: 100px;
        height: 100px;
    }
    .red{
        background: red;
    }
    .green{
        background: green;
    }
    .blue{
        background: blue;
    }

View style The rendering of justify-content: space-between:

The WXML code is as follows:

[XML] Plain text view Copy code

    <view class="flex-wrp space-between">
      <view class="flex-item" style="background: red"></view>
      <view class="flex-item" style="background: green"></view>
      <view class="flex-item" style="background: blue"></view>
    </view>

The WXSS code is as follows:

[CSS] Plain text view Copy code

    .space-between{
      flex-direction:row;
      justify-content: space-between;
    }
    .flex-wrp{
      height: 100px;
      display:flex;
      background-color: #FFFFFF;
    }
    .flex-item{
      width: 100px;
      height: 100px;
    }
    .red{
      background: red;
    }
    .green{
      background: green;
    }
    .blue{
      background: blue;
    }

Rendering of view style justify-content: space-around:

WXML code is as follows:

[XML] Plain text view Copy code

    <view class="flex-wrp space-around">
        <view class="flex-item" style="background: red"></view>
        <view class="flex-item" style="background: green"></view>
        <view class="flex-item" style="background: blue"></view>
    </view>

The WXSS code is as follows:

[CSS] 纯文本查看 复制代码

    .space-around{
        flex-direction:row;
        justify-content: space-around;
    }
    .flex-wrp{
        height: 100px;
        display:flex;
        background-color: #FFFFFF;
    }
    .flex-item{
        width: 100px;
        height: 100px;
    }
    .red{
        background: red;
    }
    .green{
        background: green;
    }
    .blue{
        background: blue;
    }

视图样式align-items: flex-end的效果图：

WXML代码如下：

[XML] 纯文本查看 复制代码

<view class="flex-wrp align-items-flex-end">
    <view class="flex-item" style="background: red"></view>
    <view class="flex-item" style="background: green"></view>
    <view class="flex-item" style="background: blue"></view>
</view>

WXSS代码如下：

[CSS] 纯文本查看 复制代码

.align-items-flex-end{
    height: 200px;
    flex-direction:row;
    justify-content: center;
    align-items: flex-end;
}
.flex-wrp{
    height: 100px;
    display:flex;
    background-color: #FFFFFF;
}
.flex-item{
    width: 100px;
    height: 100px;
}
.red{
    background: red;
}
.green{
    background: green;
}
.blue{
    background: blue;
}

视图样式align-items: center的效果图：

WXML代码如下：

[XML] 纯文本查看 复制代码

<view class="flex-wrp align-items-center">
    <view class="flex-item" style="background: red"></view>
    <view class="flex-item" style="background: green"></view>
    <view class="flex-item" style="background: blue"></view>
</view>

WXSS代码如下：

[CSS] 纯文本查看 复制代码

.align-items-center{
    height: 200px;
    flex-direction:row;
    justify-content: center;
    align-items: center;
}
.flex-wrp{
    height: 100px;
    display:flex;
    background-color: #FFFFFF;
}
.flex-item{
    width: 100px;
    height: 100px;
}
.red{
    background: red;
}
.green{
    background: green;
}
.blue{
    background: blue;
}

视图样式align-items: flex-start的效果图：

WXML代码如下：

[XML] 纯文本查看 复制代码

<view class="flex-wrp align-items-flex-start">
    <view class="flex-item" style="background: red"></view>
    <view class="flex-item" style="background: green"></view>
    <view class="flex-item" style="background: blue"></view>
</view>

WXSS代码如下：

[CSS] 纯文本查看 复制代码

.align-items-flex-start{
    height: 200px;
    flex-direction:row;
    justify-content: center;
    align-items: flex-start;
}
.flex-wrp{
    height: 100px;
    display:flex;
    background-color: #FFFFFF;
}
.flex-item{
    width: 100px;
    height: 100px;
}
.red{
    background: red;
}
.green{
    background: green;
}
.blue{
    background: blue;
}

主要属性：

排列方式（flex-direction），用于wxss

属性	描述
row	横向排列
column	纵向排列

弹性项目内容对齐（justify-content），用于wxss

属性	描述
flex-start	弹性项目向行头紧挨着填充
flex-end	弹性项目向行尾紧挨着填充
center	弹性项目居中紧挨着填充
space-between	弹性项目平均分布在该行上
space-around	弹性项目平均分布在该行上，两边留有一半的间隔空间

The alignment of items on the inner axis of the container (align-items), for wxss

Properties	Description
##stretch	Default, flex items are stretched to fit the container
center	The flex item is located in the center of the container
flex-start	The flex item is located at the beginning of the container
flex-end	The flex item is located at the end of the container
baseline	The elastic project is located on the baseline of the container

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