react-native/RNTester/js/DatePickerIOSExample.js

172 lines
4.1 KiB
JavaScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
* @flow
*/
'use strict';
const React = require('react');
const ReactNative = require('react-native');
const {DatePickerIOS, StyleSheet, Text, TextInput, View} = ReactNative;
type State = {|
date: Date,
timeZoneOffsetInHours: number,
|};
type Props = {|
children: (State, (Date) => void) => React.Node,
|};
class WithDatePickerData extends React.Component<Props, State> {
state = {
date: new Date(),
timeZoneOffsetInHours: (-1 * new Date().getTimezoneOffset()) / 60,
};
onDateChange = date => {
this.setState({date: date});
};
onTimezoneChange = event => {
const offset = parseInt(event.nativeEvent.text, 10);
if (isNaN(offset)) {
return;
}
this.setState({timeZoneOffsetInHours: offset});
};
render() {
// Ideally, the timezone input would be a picker rather than a
// text input, but we don't have any pickers yet :(
return (
<View>
<WithLabel label="Value:">
<Text testID="date-and-time-indicator">
{this.state.date.toLocaleDateString() +
' ' +
this.state.date.toLocaleTimeString([], {
hour: '2-digit',
minute: '2-digit',
})}
</Text>
</WithLabel>
<WithLabel label="Timezone:">
<TextInput
onChange={this.onTimezoneChange}
style={styles.textinput}
value={this.state.timeZoneOffsetInHours.toString()}
/>
<Text> hours from UTC</Text>
</WithLabel>
{this.props.children(this.state, this.onDateChange)}
</View>
);
}
}
type LabelProps = {|
label: string,
children: React.Node,
|};
class WithLabel extends React.Component<LabelProps> {
render() {
return (
<View style={styles.labelContainer}>
<View style={styles.labelView}>
<Text style={styles.label}>{this.props.label}</Text>
</View>
{this.props.children}
</View>
);
}
}
const styles = StyleSheet.create({
textinput: {
height: 26,
width: 50,
borderWidth: 0.5,
borderColor: '#0f0f0f',
padding: 4,
fontSize: 13,
},
labelContainer: {
flexDirection: 'row',
alignItems: 'center',
marginVertical: 2,
},
labelView: {
marginRight: 10,
paddingVertical: 2,
},
label: {
fontWeight: '500',
},
});
exports.title = '<DatePickerIOS>';
exports.description = 'Select dates and times using the native UIDatePicker.';
exports.examples = [
{
title: 'Date and time picker',
render: function(): React.Element<any> {
return (
<WithDatePickerData>
{(state, onDateChange) => (
<DatePickerIOS
testID="date-and-time"
date={state.date}
mode="datetime"
timeZoneOffsetInMinutes={state.timeZoneOffsetInHours * 60}
onDateChange={onDateChange}
/>
)}
</WithDatePickerData>
);
},
},
{
title: 'Date only picker',
render: function(): React.Element<any> {
return (
<WithDatePickerData>
{(state, onDateChange) => (
<DatePickerIOS
testID="date-only"
date={state.date}
mode="date"
timeZoneOffsetInMinutes={state.timeZoneOffsetInHours * 60}
onDateChange={onDateChange}
/>
)}
</WithDatePickerData>
);
},
},
{
title: 'Time only picker, 10-minute interval',
render: function(): React.Element<any> {
return (
<WithDatePickerData>
{(state, onDateChange) => (
<DatePickerIOS
testID="time-only"
date={state.date}
mode="time"
timeZoneOffsetInMinutes={state.timeZoneOffsetInHours * 60}
onDateChange={onDateChange}
/>
)}
</WithDatePickerData>
);
},
},
];