Simple usage example of WeChat applet picker component
picker rolling selector currently supports three selectors, distinguished by mode, which are ordinary selectors (mode=selector) and time selectors ( mode=time), date selector (mode=date), the default is a normal selector.
In this article, we will share with you a simple usage example of the WeChat applet picker component.
The specific function description is as follows:
Normal selector: mode=selector
| Type | Default value | Description | |
|---|---|---|---|
| Array | [] | When mode is selector, range is valid | |
| Number | 0 | When mode is selector, it is a number, indicating which number in the range is selected, starting from 0. | |
| EventHandle | The change event is triggered when the value changes, | event.detail= { value:value } |
| Type | Default value | Description | |
|---|---|---|---|
| String | represents the selected time, the format is " | hh:mm" | ## start|
| represents the beginning of the valid time range, the string format is " | hh:mm | "end | |
| represents the end of the valid time range, the string format is " | hh:mm | "bindchange | |
| The change event is triggered when the value changes, | event.detail= { value:value} | |
| Default value | Description | ##value | |
|---|---|---|---|
| represents the selected date, the format is " | yyyy-MM-dd | "start | String|
| represents the beginning of the valid date range, the string format is " | yyyy-MM-dd | "end | String|
| represents the end of the valid date range, the string format is " | yyyy-MM-dd | "fields | String|
| Valid values are year, month, day, indicating the granularity of the selector | bindchange | EventHandle | |
| The change event is triggered when the value changes, | event.detail= { value:value} |
|
<view class="section">
<view class="section__title">地区选择器</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">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>
picker .js：
Page({
data: {
array: ['美国', '中国', '巴西', '日本'],
index: 0,
date: '2016-09-01',
time: '12:01'
},
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
})
},
bindDateChange: function(e) {
this.setData({
date: e.detail.value
})
},
bindTimeChange: function(e) {
this.setData({
time: e.detail.value
})
}
})
Simple style layout picker.wxss：
.section {
display: flex;
flex-direction: column;
padding: 20rpx 0rpx;
color: #333;
}
.section__title{
font-size: 40rpx;
margin: 10rpx 0rpx;
}
Operation effect:
The above content is a simple usage example of the WeChat applet picker component. I hope it can help everyone.
Related recommendations: 
picker rolling selector
WeChat applet picker-view component detailed example code
WeChat applet picker date and time picker
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