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树形菜单

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API和组件

有没有树形菜单,或者怎么实现?

最后一次编辑于  2017-11-17
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1 个回答

  • Marz
    Marz
    2018-02-26

    写过的一个小例子,看看适不适合你

    components -- tree

    file: tree.js

    allClassifyArr: [{
    className: '分类1',
    classId: 'c1',
    children: [{
    className: '二级分类1',
    classId: 'cc1'
    }, {
    className: '二级分类2',
    classId: 'cc2'
    }]
    }, {
    className: '分类2',
    classId: 'c2',
    children: [{
    className: '二级分类1',
    classId: 'cc1',
    children: [{
    className: '三级分类1',
    classId: 'ccc1',
    children: [{
    className: '四级分类1',
    classId: 'ccc1',
    }]
    }]
    }, {
    className: '二级分类2',
    classId: 'cc2'
    }]
    }, {
    className: '分类3',
    classId: 'c3',
    children: [{
    className: '二级分类1',
    classId: 'cc1'
    },]
    }, {
    className: '分类4',
    classId: 'c4',
    children: [{
    className: '二级分类1',
    classId: 'cc1'
    }, {
    className: '二级分类2',
    classId: 'cc2'
    }]
    }, {
    className: '分类5',
    classId: 'c5',
    children: [{
    className: '二级分类1',
    classId: 'cc1'
    }, {
    className: '二级分类2',
    classId: 'cc2'
    }]
    }, {
    className: '分类6',
    classId: 'c6',
    children: [{
    className: '二级分类1',
    classId: 'cc1'
    }, {
    className: '二级分类2',
    classId: 'cc2'
    }]
    }],

    file: tree.wxml

    <view>
    tree
    <tree-child wx:for="{{ allClassifyArr }}" itemdata="{{ item }}"></tree-child>
    </view>

    components -- tree-child

    file: tree-child.js

    properties: {
    itemdata: {
    type: Object, // 类型(必填),目前接受的类型包括:String, Number, Boolean, Object, Array, null(表示任意类型)
    value: {}, // 属性初始值(可选),如果未指定则会根据类型选择一个
    }
    },

    file: tree-child.wxml

    <view>
    <text>{{ itemdata.className }}</text>
    <tree-child wx:for="{{ itemdata.children }}" itemdata="{{ item }}" ></tree-child>
    </view>

    file: tree-child.json

    {
    "component": true,
    "usingComponents": {
    "tree-child-one": "../tree-child-one/tree-child-one"
    }
    }


    2018-02-26
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