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							- <template>
 
- 	<view
 
- 	    class="u-grid"
 
- 		ref='u-grid'
 
- 	    :style="[gridStyle]"
 
- 	>
 
- 		<slot />
 
- 	</view>
 
- </template>
 
- <script>
 
- 	import props from './props.js';
 
- 	/**
 
- 	 * grid 宫格布局
 
- 	 * @description 宫格组件一般用于同时展示多个同类项目的场景,可以给宫格的项目设置徽标组件(badge),或者图标等,也可以扩展为左右滑动的轮播形式。
 
- 	 * @tutorial https://www.uviewui.com/components/grid.html
 
- 	 * @property {String | Number}	col			宫格的列数(默认 3 )
 
- 	 * @property {Boolean}			border		是否显示宫格的边框(默认 false )
 
- 	 * @property {String}			align		宫格对齐方式,表现为数量少的时候,靠左,居中,还是靠右 (默认 'left' )
 
- 	 * @property {Object}			customStyle	定义需要用到的外部样式
 
- 	 * @event {Function} click 点击宫格触发
 
- 	 * @example <u-grid :col="3" @click="click"></u-grid>
 
- 	 */
 
- 	export default {
 
- 		name: 'u-grid',
 
- 		mixins: [uni.$u.mpMixin, uni.$u.mixin,props],
 
- 		data() {
 
- 			return {
 
- 				index: 0,
 
- 				width: 0
 
- 			}
 
- 		},
 
- 		watch: {
 
- 			// 当父组件需要子组件需要共享的参数发生了变化,手动通知子组件
 
- 			parentData() {
 
- 				if (this.children.length) {
 
- 					this.children.map(child => {
 
- 						// 判断子组件(u-radio)如果有updateParentData方法的话,就就执行(执行的结果是子组件重新从父组件拉取了最新的值)
 
- 						typeof(child.updateParentData) == 'function' && child.updateParentData();
 
- 					})
 
- 				}
 
- 			},
 
- 		},
 
- 		created() {
 
- 			// 如果将children定义在data中,在微信小程序会造成循环引用而报错
 
- 			this.children = []
 
- 		},
 
- 		computed: {
 
- 			// 计算父组件的值是否发生变化
 
- 			parentData() {
 
- 				return [this.hoverClass, this.col, this.size, this.border];
 
- 			},
 
- 			// 宫格对齐方式
 
- 			gridStyle() {
 
- 				let style = {};
 
- 				switch (this.align) {
 
- 					case 'left':
 
- 						style.justifyContent = 'flex-start';
 
- 						break;
 
- 					case 'center':
 
- 						style.justifyContent = 'center';
 
- 						break;
 
- 					case 'right':
 
- 						style.justifyContent = 'flex-end';
 
- 						break;
 
- 					default:
 
- 						style.justifyContent = 'flex-start';
 
- 				};
 
- 				return uni.$u.deepMerge(style, uni.$u.addStyle(this.customStyle));
 
- 			}
 
- 		},
 
- 		methods: {
 
- 			// 此方法由u-grid-item触发,用于在u-grid发出事件
 
- 			childClick(name) {
 
- 				this.$emit('click', name)
 
- 			}
 
- 		}
 
- 	};
 
- </script>
 
- <style lang="scss" scoped>
 
- 	@import "../../libs/css/components.scss";
 
-      $u-grid-width:100% !default;
 
- 	.u-grid {
 
- 		/* #ifdef MP */
 
- 		width: $u-grid-width;
 
- 		position: relative;
 
- 		box-sizing: border-box;
 
- 		overflow: hidden;
 
- 		display: block;
 
- 		/* #endif */
 
- 		justify-content: center;
 
- 		/* #ifndef MP */
 
- 		@include flex;
 
- 		flex-wrap: wrap;
 
- 		align-items: center;
 
- 		/* #endif */
 
- 	}
 
- </style>
 
 
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