在 React Native 中触摸 TextInput 时打开键盘和/或 DatePickerIOS

Question

I am new to React Native and am simply looking to have a DatePickerIOS component slide up from the bottom of the screen when a TextInput is touched.

Can someone please point me in the right direction or give me a simple example?

Below is my component. It is very simple. I'm trying to get either the keyboard or the DatePickerIOS to open once the user touches the TextInput.

import React, {
  AppRegistry,
  Component,
  StyleSheet,
  Text,
  TextInput,
  View,
  DatePickerIOS
} from 'react-native';

class AddChildVisit extends Component {

render() {
  return (
    <View>
      <Text>Visit Date</Text>
      <TextInput
        style={{height: 40, width: 300, padding: 4, borderColor: 'gray', borderWidth: 1}}
        keyboardType= 'numeric'
      />
      <DatePickerIOS
        date={new Date()}
        mode="date"
      />
    </View>
  );
 }


}


module.exports = AddChildVisit;

Answer 1

I am using DatePickerIOS, here is example how would I do it:

import React, {
    AppRegistry,
    Component,
    StyleSheet,
    Text,
    TouchableOpacity,
    TextInput,
    View,
    DatePickerIOS
} from "react-native";

var moment = require('moment');

class AddChildVisit extends Component {
    constructor(props) {
        super(props);
        this.state = {
            date: new Date(),
            showDatePicker: false 
        }
    }

    render() {
        var showDatePicker = this.state.showDatePicker ?
            <DatePickerIOS
                style={{ height: 150 }}
                date={this.state.date} onDateChange={(date)=>this.setState({date})}
                mode="date"/> : <View />
        return (
            <View>
                <Text>Visit Date</Text>
                <TouchableOpacity style={{height: 40, width: 300, padding: 4, borderColor: 'gray', borderWidth: 1}}
                                  onPress={() => this.setState({showDatePicker: !this.state.showDatePicker})}>
                    <Text>{moment(this.state.date).format('DD/MM/YYYY')}</Text>
                </TouchableOpacity>
                {showDatePicker}
            </View>
        );
    }


}

module.exports = AddChildVisit;

When you press TouchableOpacity, datepicker will show because you trigger flag to show it, and if you press it again, it will close. I also use moment to print date because I was getting error that I can't put object in text component etc. For this example to work you need to install moment, you can do it like this: npm install moment --save , I already used it in code example above, you can see var moment = require('moment') , and again in printing date in text {moment(this.state.date).format('DD/MM/YYYY')} . If you don't want to install/use it, just remove lines with moment from my example - but your date won't be printed then. I'm not really sure how would I call date picker with TextInput because it has to trigger keyboard, and when I have date picker I don't really need keyboard. I hope it helps :)

Answer 2

另一种方法是使用包 react-native-datepicker 并且适用于 Android/iOS 两个平台https://www.npmjs.com/package/react-native-datepicker