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微信小程序基于picker实现级联菜单

2019-11-19 12:08:26
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本文实例为大家分享了微信小程序实现级联菜单的具体代码,供大家参考,具体内容如下

<view > <picker bindchange="bindPickerChange0" value="{{brandindex}}" range="{{brands}}">  <view class="picker">   品牌:{{brands[brandindex]}}  </view> </picker></view> <view > <picker bindchange="bindPickerChange1" value="{{index1}}" range="{{object}}">  <view class="picker">   配件类别:{{object[index1]}}  </view> </picker></view>
data: {  brands: [],  objectArray: [   {    brand:"博世",    id: 0,    array: ["博世喷油器配件", "博世传感器", "杰克赛尔配件", "博世油泵配件", "博世共轨管配件","博世泵喷嘴"]   },   {    brand: "德尔福",    id: 1,    array: ["德尔福喷油器配件", "德尔福传感器", "德尔福油泵", "德尔福共轨管配件", "德尔福滤清器", "德尔福电脑版ECU", "德尔福机油", "德尔福维修部件"]   },   {    brand: "卡特",    id: 2,    array: ["卡特传感器", "卡特C7C9泵喷嘴","卡特共轨配件"]   },   {    brand: "康明斯",    id: 3,    array: ["西康配件", "东风康明斯","福田康明斯"]   }  ],  object:[],  brandindex:0,  index1:0 }, onLoad:function(){  var objectArray = this.data.objectArray  var brands=[]  for (var i = 0; i < objectArray.length;i++){   brands.push(objectArray[i].brand,)   }  this.setData({ brands: brands ,object: objectArray[this.data.brandindex].array}) }, bindPickerChange0: function (e) {  this.setData({ brandindex: e.detail.value, index1:0 })  var objectArray = this.data.objectArray  this.setData({ object: objectArray[this.data.brandindex].array}) }, bindPickerChange1: function (e) {  this.setData({   index1: e.detail.value  }) },

效果图:

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