react-native/RNTester/js/ActivityIndicatorExample.js

176 lines
3.8 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
* @flow strict-local
*/
'use strict';
import React, {Component} from 'react';
import {ActivityIndicator, StyleSheet, View} from 'react-native';
/**
* Optional Flowtype state and timer types definition
*/
type State = {animating: boolean};
type Timer = number;
class ToggleAnimatingActivityIndicator extends Component<
$FlowFixMeProps,
State,
> {
_timer: Timer;
constructor(props) {
super(props);
this.state = {
animating: true,
};
}
componentDidMount() {
this.setToggleTimeout();
}
componentWillUnmount() {
/* $FlowFixMe(>=0.63.0 site=react_native_fb) This comment suppresses an
* error found when Flow v0.63 was deployed. To see the error delete this
* comment and run Flow. */
clearTimeout(this._timer);
}
setToggleTimeout() {
/* $FlowFixMe(>=0.63.0 site=react_native_fb) This comment suppresses an
* error found when Flow v0.63 was deployed. To see the error delete this
* comment and run Flow. */
this._timer = setTimeout(() => {
this.setState({animating: !this.state.animating});
this.setToggleTimeout();
}, 2000);
}
render() {
return (
<ActivityIndicator
animating={this.state.animating}
style={[styles.centering, {height: 80}]}
size="large"
/>
);
}
}
exports.displayName = (undefined: ?string);
exports.framework = 'React';
exports.title = '<ActivityIndicator>';
exports.description = 'Animated loading indicators.';
exports.examples = [
{
title: 'Default (small, white)',
render() {
return (
<ActivityIndicator
style={[styles.centering, styles.gray]}
color="white"
/>
);
},
},
{
title: 'Gray',
render() {
return (
<View>
<ActivityIndicator style={[styles.centering]} />
<ActivityIndicator
style={[styles.centering, {backgroundColor: '#eeeeee'}]}
/>
</View>
);
},
},
{
title: 'Custom colors',
render() {
return (
<View style={styles.horizontal}>
<ActivityIndicator color="#0000ff" />
<ActivityIndicator color="#aa00aa" />
<ActivityIndicator color="#aa3300" />
<ActivityIndicator color="#00aa00" />
</View>
);
},
},
{
title: 'Large',
render() {
return (
<ActivityIndicator
style={[styles.centering, styles.gray]}
size="large"
color="white"
/>
);
},
},
{
title: 'Large, custom colors',
render() {
return (
<View style={styles.horizontal}>
<ActivityIndicator size="large" color="#0000ff" />
<ActivityIndicator size="large" color="#aa00aa" />
<ActivityIndicator size="large" color="#aa3300" />
<ActivityIndicator size="large" color="#00aa00" />
</View>
);
},
},
{
title: 'Start/stop',
render() {
return <ToggleAnimatingActivityIndicator />;
},
},
{
title: 'Custom size',
render() {
return (
<ActivityIndicator
style={[styles.centering, {transform: [{scale: 1.5}]}]}
size="large"
/>
);
},
},
{
platform: 'android',
title: 'Custom size (size: 75)',
render() {
return <ActivityIndicator style={styles.centering} size={75} />;
},
},
];
const styles = StyleSheet.create({
centering: {
alignItems: 'center',
justifyContent: 'center',
padding: 8,
},
gray: {
backgroundColor: '#cccccc',
},
horizontal: {
flexDirection: 'row',
justifyContent: 'space-around',
padding: 8,
},
});