微信小程序_(组件)picker
Posted Cynical丶Gary
tags:
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picker组件效果 官方文档:传送门
Page({
data: {
array: [\'美国\', \'中国\', \'巴西\', \'日本\'],
objectArray: [
{
id: 0,
name: \'美国\'
},
{
id: 1,
name: \'中国\'
},
{
id: 2,
name: \'巴西\'
},
{
id: 3,
name: \'日本\'
}
],
index: 0,
multiArray: [[\'无脊柱动物\', \'脊柱动物\'], [\'扁性动物\', \'线形动物\', \'环节动物\', \'软体动物\', \'节肢动物\'], [\'猪肉绦虫\', \'吸血虫\']],
objectMultiArray: [
[
{
id: 0,
name: \'无脊柱动物\'
},
{
id: 1,
name: \'脊柱动物\'
}
], [
{
id: 0,
name: \'扁性动物\'
},
{
id: 1,
name: \'线形动物\'
},
{
id: 2,
name: \'环节动物\'
},
{
id: 3,
name: \'软体动物\'
},
{
id: 3,
name: \'节肢动物\'
}
], [
{
id: 0,
name: \'猪肉绦虫\'
},
{
id: 1,
name: \'吸血虫\'
}
]
],
multiIndex: [0, 0, 0],
date: \'2016-09-01\',
time: \'12:01\',
region: [\'广东省\', \'广州市\', \'海珠区\'],
customItem: \'全部\'
},
bindPickerChange: function (e) {
console.log(\'picker发送选择改变,携带值为\', e.detail.value)
this.setData({
index: e.detail.value
})
},
bindMultiPickerChange: function (e) {
console.log(\'picker发送选择改变,携带值为\', e.detail.value)
this.setData({
multiIndex: e.detail.value
})
},
bindMultiPickerColumnChange: function (e) {
console.log(\'修改的列为\', e.detail.column, \',值为\', e.detail.value);
var data = {
multiArray: this.data.multiArray,
multiIndex: this.data.multiIndex
};
data.multiIndex[e.detail.column] = e.detail.value;
switch (e.detail.column) {
case 0:
switch (data.multiIndex[0]) {
case 0:
data.multiArray[1] = [\'扁性动物\', \'线形动物\', \'环节动物\', \'软体动物\', \'节肢动物\'];
data.multiArray[2] = [\'猪肉绦虫\', \'吸血虫\'];
break;
case 1:
data.multiArray[1] = [\'鱼\', \'两栖动物\', \'爬行动物\'];
data.multiArray[2] = [\'鲫鱼\', \'带鱼\'];
break;
}
data.multiIndex[1] = 0;
data.multiIndex[2] = 0;
break;
case 1:
switch (data.multiIndex[0]) {
case 0:
switch (data.multiIndex[1]) {
case 0:
data.multiArray[2] = [\'猪肉绦虫\', \'吸血虫\'];
break;
case 1:
data.multiArray[2] = [\'蛔虫\'];
break;
case 2:
data.multiArray[2] = [\'蚂蚁\', \'蚂蟥\'];
break;
case 3:
data.multiArray[2] = [\'河蚌\', \'蜗牛\', \'蛞蝓\'];
break;
case 4:
data.multiArray[2] = [\'昆虫\', \'甲壳动物\', \'蛛形动物\', \'多足动物\'];
break;
}
break;
case 1:
switch (data.multiIndex[1]) {
case 0:
data.multiArray[2] = [\'鲫鱼\', \'带鱼\'];
break;
case 1:
data.multiArray[2] = [\'青蛙\', \'娃娃鱼\'];
break;
case 2:
data.multiArray[2] = [\'蜥蜴\', \'龟\', \'壁虎\'];
break;
}
break;
}
data.multiIndex[2] = 0;
console.log(data.multiIndex);
break;
}
this.setData(data);
},
bindDateChange: function (e) {
console.log(\'picker发送选择改变,携带值为\', e.detail.value)
this.setData({
date: e.detail.value
})
},
bindTimeChange: function (e) {
console.log(\'picker发送选择改变,携带值为\', e.detail.value)
this.setData({
time: e.detail.value
})
},
bindRegionChange: function (e) {
console.log(\'picker发送选择改变,携带值为\', e.detail.value)
this.setData({
region: e.detail.value
})
}
})
Gary 微信小程序 <view class="section"> <view class="section__title">普通选择器</view> <picker bindchange="bindPickerChange" value="{{index}}" range="{{array}}"> <view class="picker"> 当前选择:{{array[index]}} </view> </picker> </view> <view class="section"> <view class="section__title">多列选择器</view> <picker mode="multiSelector" bindchange="bindMultiPickerChange" bindcolumnchange="bindMultiPickerColumnChange" value="{{multiIndex}}" range="{{multiArray}}"> <view class="picker"> 当前选择:{{multiArray[0][multiIndex[0]]}},{{multiArray[1][multiIndex[1]]}},{{multiArray[2][multiIndex[2]]}} </view> </picker> </view> <view class="section"> <view class="section__title">时间选择器</view> <picker mode="time" value="{{time}}" start="09:01" end="21:01" bindchange="bindTimeChange"> <view class="picker"> 当前选择: {{time}} </view> </picker> </view> <view class="section"> <view class="section__title">日期选择器</view> <picker mode="date" value="{{date}}" start="2015-09-01" end="2017-09-01" bindchange="bindDateChange"> <view class="picker"> 当前选择: {{date}} </view> </picker> </view> <view class="section"> <view class="section__title">省市区选择器</view> <picker mode="region" bindchange="bindRegionChange" value="{{region}}" custom-item="{{customItem}}"> <view class="picker"> 当前选择:{{region[0]}},{{region[1]}},{{region[2]}} </view> </picker> </view>
{
"pages":[
"pages/test/test",
"pages/index/index",
"pages/logs/logs"
],
"window":{
"backgroundTextStyle":"light",
"navigationBarBackgroundColor": "#fff",
"navigationBarTitleText": "WeChat",
"navigationBarTextStyle":"black"
}
}
picker底部弹起的滚动选择器 支持五种选择器 :普通选择器,多列选择器,时间选择器,日期选择器,省市区选择器
实现过程
普通选择器
<view class="section"> <view class="section__title">普通选择器</view> <picker bindchange="bindPickerChange" value="{{index}}" range="{{array}}"> <view class="picker"> 当前选择:{{array[index]}} </view> </picker> </view>
绑定数值到选择器上,index初始化时下标为0
array: [\'美国\', \'中国\', \'巴西\', \'日本\'],
objectArray: [
{
id: 0,
name: \'美国\'
},
{
id: 1,
name: \'中国\'
},
{
id: 2,
name: \'巴西\'
},
{
id: 3,
name: \'日本\'
}
],
index: 0,
多列选择器
<view class="section"> <view class="section__title">多列选择器</view> <picker mode="multiSelector" bindchange="bindMultiPickerChange" bindcolumnchange="bindMultiPickerColumnChange" value="{{multiIndex}}" range="{{multiArray}}"> <view class="picker"> 当前选择:{{multiArray[0][multiIndex[0]]}},{{multiArray[1][multiIndex[1]]}},{{multiArray[2][multiIndex[2]]}} </view> </picker> </view>
绑定数值到选择器上,multiIndex: [0, 0, 0]初始化时指向第一个元素
multiArray: [[\'无脊柱动物\', \'脊柱动物\'], [\'扁性动物\', \'线形动物\', \'环节动物\', \'软体动物\', \'节肢动物\'], [\'猪肉绦虫\', \'吸血虫\']],
objectMultiArray: [
[
{
id: 0,
name: \'无脊柱动物\'
},
{
id: 1,
name: \'脊柱动物\'
}
], [
{
id: 0,
name: \'扁性动物\'
},
{
id: 1,
name: \'线形动物\'
},
{
id: 2,
name: \'环节动物\'
},
{
id: 3,
name: \'软体动物\'
},
{
id: 3,
name: \'节肢动物\'
}
], [
{
id: 0,
name: \'猪肉绦虫\'
},
{
id: 1,
name: \'吸血虫\'
}
]
],
multiIndex: [0, 0, 0],
时间选择器
<view class="section"> <view class="section__title">时间选择器</view> <picker mode="time" value="{{time}}" start="09:01" end="21:01" bindchange="bindTimeChange"> <view class="picker"> 当前选择: {{time}} </view> </picker> </view>
绑定数值到选择器上,初始化时时间为12:01
time: \'12:01\',
日期选择器
<view class="section"> <view class="section__title">日期选择器</view> <picker mode="date" value="{{date}}" start="2015-09-01" end="2017-09-01" bindchange="bindDateChange"> <view class="picker"> 当前选择: {{date}} </view> </picker> </view>
绑定数值到选择器上,初始化时日期为date: \'2016-09-01\',
date: \'2016-09-01\',
省市区选择器
<view class="section"> <view class="section__title">省市区选择器</view> <picker mode="region" bindchange="bindRegionChange" value="{{region}}" custom-item="{{customItem}}"> <view class="picker"> 当前选择:{{region[0]}},{{region[1]}},{{region[2]}} </view> </picker> </view>
绑定数值到选择器上,初始化时为 广东省-广州市-海珠区
region: [\'广东省\', \'广州市\', \'海珠区\'],
添加函数绑定到选择器上,滑动选择器可修改选择器上的数值
bindPickerChange: function (e) {
console.log(\'picker发送选择改变,携带值为\', e.detail.value)
this.setData({
index: e.detail.value
})
},
bindMultiPickerChange: function (e) {
console.log(\'picker发送选择改变,携带值为\', e.detail.value)
this.setData({
multiIndex: e.detail.value
})
},
bindMultiPickerColumnChange: function (e) {
console.log(\'修改的列为\', e.detail.column, \',值为\', e.detail.value);
var data = {
multiArray: this.data.multiArray,
multiIndex: this.data.multiIndex
};
data.multiIndex[e.detail.column] = e.detail.value;
switch (e.detail.column) {
case 0:
switch (data.multiIndex[0]) {
case 0:
data.multiArray[1] = [\'扁性动物\', \'线形动物\', \'环节动物\', \'软体动物\', \'节肢动物\'];
data.multiArray[2] = [\'猪肉绦虫\', \'吸血虫\'];
break;
case 1:
data.multiArray[1] = [\'鱼\', \'两栖动物\', \'爬行动物\'];
data.multiArray[2] = [\'鲫鱼\', \'带鱼\'];
break;
}
data.multiIndex[1] = 0;
data.multiIndex[2] = 0;
break;
case 1:
switch (data.multiIndex[0]) {
case 0:
switch (data.multiIndex[1]) {
case 0:
data.multiArray[2] = [\'猪肉绦虫\', \'吸血虫\'];
break;
case 1:
data.multiArray[2] = [\'蛔虫\'];
break;
case 2:
data.multiArray[2] = [\'蚂蚁\', \'蚂蟥\'];
break;
case 3:
data.multiArray[2] = [\'河蚌\', \'蜗牛\', \'蛞蝓\'];
break;
case 4:
data.multiArray[2] = [\'昆虫\', \'甲壳动物\', \'蛛形动物\', \'多足动物\'];
break;
}
break;
case 1:
switch (data.multiIndex[1]) {
case 0:
data.multiArray[2] = [\'鲫鱼\', \'带鱼\'];
break;
case 1:
data.multiArray[2] = [\'青蛙\', \'娃娃鱼\'];
break;
case 2:
data.multiArray[2] = [\'蜥蜴\', \'龟\', \'壁虎\'];
break;
}
break;
}
data.multiIndex[2] = 0;
console.log(data.multiIndex);
break;
}
this.setData(data);
},
bindDateChange: function (e) {
console.log(\'picker发送选择改变,携带值为\', e.detail.value)
this.setData({
date: e.detail.value
})
},
bindTimeChange: function (e) {
console.log(\'picker发送选择改变,携带值为\', e.detail.value)
this.setData({
time: e.detail.value
})
},
bindRegionChange: function (e) {
console.log(\'picker发送选择改变,携带值为\', e.detail.value)
this.setData({
region: e.detail.value
})
}
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