datePicker

class EditProfile extends Component {
  constructor(props) {
    super(props);
    this.state = {
        today: new Date(),
        date: new Date(props.userData.birth_date),
        mode: "date",
    }
  }

formatDate = date => {
  var d = new Date(date),
    month = "" + (d.getMonth() + 1),
    day = "" + d.getDate(),
    year = d.getFullYear();

  if (month.length < 2) month = "0" + month;
  if (day.length < 2) day = "0" + day;

  return [year, month, day].join("-");
};




setDate = (event, date) => {
    date = date || this.state.date;

    this.setState({
        show: Platform.OS === "ios" ? true : false,
        date: formatDate(date)
      });
  };


render() {
    let { today, date, mode } = this.state
    return(
        ...
            {show && (
              <DateTimePicker
                maximumDate={today}
                value={date}
                mode={mode}
                is24Hour={true}
                display="default"
                onChange={this.setDate}
              />
            )}
        ...
    )

}

}