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# bi.float_center
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#### 浮动布局实现的居中容器
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{% method %}
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[source](https://jsfiddle.net/fineui/1vgn555m/)
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{% common %}
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```javascript
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Demo = {};
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Demo.FloatCenterLayout = BI.inherit(BI.Widget, {
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props: {
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baseCls: "demo-float-center"
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},
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render: function () {
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return {
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type: "bi.float_center",
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items: [{
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type: "bi.label",
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text: "floatCenter与center的不同在于，它可以控制最小宽度和最大宽度",
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cls: "layout-bg1",
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whiteSpace: "normal"
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}, {
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type: "bi.label",
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text: "floatCenter与center的不同在于，它可以控制最小宽度和最大宽度",
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cls: "layout-bg2",
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whiteSpace: "normal"
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}],
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height: 300,
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hgap: 20,
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vgap: 20
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}
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}
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});
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BI.shortcut("demo.float_center", Demo.FloatCenterLayout);
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BI.createWidget({
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type: 'demo.float_center',
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element: "#wrapper",
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});
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```
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{% endmethod %}
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## API
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##### 基础属性
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| 参数 | 说明 | 类型 | 可选值 | 默认值
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| :------ |:------------- | :----- | :----|:----
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| hgap | 效果相当于容器左右padding值 | number | | 0 |
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| vgap | 效果相当于容器上下padding值 | number | | 0 |
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| lgap | 效果相当于容器left-padding值 | number | | 0 |
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| rgap | 效果相当于容器right-padding值 | number | | 0 |
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| tgap | 效果相当于容器top-padding值 | number | | 0 |
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| bgap | 效果相当于容器bottom-padding值 | number | | 0 |
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| items | 子控件数组 | array | | |
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---
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