building_tx_mini_wx_rebuild/components/picker/index.js

// components/picker/index.js
const { formatTime } = require('../../utils/util')
Component({
  /**
   * 组件的属性列表
   */
  properties: {
    // picker类型
    type: {
      type: String,
      value: ''
    },
    // 未选择时提示
    placeholder: {
      type: Array,
      value: ['请选择']
    },
    // 数据列表
    list: {
      type: Array,
      value: []
    },
    // 显示参数key
    rangeKey: {
      type: String,
      value: ''
    },
    // 选择下标
    index: {
      value: null
    },
    // 日期时间选择器
    dateTime: {
      type: String,
      value: null
    },
    delay: {
      type: Number,
      value: null
    },
    isAudit:{
        type:Boolean,
        value:false
    }
  },

  /**
   * 组件的初始数据
   */
  data: {
    index: null, //普通选择器下标
    date: null, //日期
    time: null, //时间
  },

  /**
   * 组件的方法列表
   */
  lifetimes: {
    attached: function() {
      if(this.data.type === 'date-time' && this.data.dateTime === null) {
        this.getTime()
      }
    },
    detached: function() {
      // 在组件实例被从页面节点树移除时执行
    },
  },
  observers:{
      "dateTime": function(dateTime) {
        if(this.data.type === 'date-time') {
            this.getTime()
        }
      }
  },
  methods: {
    // 获得传入时间或默认当前时间
    getTime() {
      var { date, time, dateTime, delay } = this.data;
      var newDateTime = null;
      if (dateTime) {
        newDateTime = dateTime.replaceAll('-', '/');
      } else if(delay != null) {
        var nowDateTime = (Date.now()+delay); 
        newDateTime = nowDateTime;
      } else {
        return
      }
      date = formatTime(newDateTime, 'YYYY-MM-DD');
      time = formatTime(newDateTime, 'HH:NN');
      this.setData({ date, time });
      if (date && time) {
        this.triggerEvent('change', (date+' '+time+':00'))
      }
    },
    // 选择普通项
    chooseItem(e) {
      var { index } = this.data;
      index = e.detail.value
      this.setData({ index });
      this.triggerEvent('change', this.data.list[index] )
    },
    // 选择日期
    chooseDateTime(e) {
      var { date, time } = this.data
      switch (e.currentTarget.dataset.type) {
        case 'date':
          date = e.detail.value
          this.setData({ date })
          break;
        case 'time':
          time = e.detail.value
          this.setData({ time })
          break;
        default:
          break;
      };
      if (date && time) {
        this.triggerEvent('change', (date+' '+time+':00'))
      }
    }
  }
})