# bi.vertical_adapt

#### 自适应垂直居中布局

{% method %}
[source](https://jsfiddle.net/fineui/7t1bsfy0/)

{% common %}
```javascript

BI.createWidget({
    type: "bi.vertical_adapt",
    element: "#wrapper",
    vgap: 10,
    items: [{
        type: "bi.label",
        text: "Vertical Adapt上下自适应",
        cls: "layout-bg1",
        width: 300,
        height: 30
    }, {
        type: "bi.label",
        text: "Vertical Adapt上下自适应",
        cls: "layout-bg2",
        width: 300,
        height: 30
    }]
})



```

{% endmethod %}


## API
##### 基础属性
| 参数    | 说明                           | 类型       | 可选值 | 默认值
| :------ |:-------------                  | :-----     | :----|:----
| hgap    | 效果相当于容器左右padding值    |    number  | — |  0  |
| vgap    | 效果相当于容器上下padding值    |    number  | — |  0  |
| lgap    | 效果相当于容器left-padding值   |    number  | — |  0  |
| rgap    | 效果相当于容器right-padding值  |    number  | — |  0  |
| tgap    | 效果相当于容器top-padding值    |    number  | — |  0  |
| bgap    | 效果相当于容器bottom-padding值 |    number  | — |  0  |
| columnSize | 每列宽度所组成的数组     |    array | — | [ ] | 

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