react-native/Examples/UIExplorer/ProgressViewIOSExample.js

85 lines
2.3 KiB
JavaScript

/**
* The examples provided by Facebook are for non-commercial testing and
* evaluation purposes only.
*
* Facebook reserves all rights not expressly granted.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL
* FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* @flow
*/
'use strict';
var React = require('react-native');
var {
ProgressViewIOS,
StyleSheet,
View,
} = React;
var TimerMixin = require('react-timer-mixin');
var ProgressViewExample = React.createClass({
mixins: [TimerMixin],
getInitialState() {
return {
progress: 0,
};
},
componentDidMount() {
this.updateProgress();
},
updateProgress() {
var progress = this.state.progress + 0.01;
this.setState({ progress });
this.requestAnimationFrame(() => this.updateProgress());
},
getProgress(offset) {
var progress = this.state.progress + offset;
return Math.sin(progress % Math.PI) % 1;
},
render() {
return (
<View style={styles.container}>
<ProgressViewIOS style={styles.progressView} progress={this.getProgress(0)}/>
<ProgressViewIOS style={styles.progressView} progressTintColor="purple" progress={this.getProgress(0.2)}/>
<ProgressViewIOS style={styles.progressView} progressTintColor="red" progress={this.getProgress(0.4)}/>
<ProgressViewIOS style={styles.progressView} progressTintColor="orange" progress={this.getProgress(0.6)}/>
<ProgressViewIOS style={styles.progressView} progressTintColor="yellow" progress={this.getProgress(0.8)}/>
</View>
);
},
});
exports.displayName = (undefined: ?string);
exports.framework = 'React';
exports.title = 'ProgressViewIOS';
exports.description = 'ProgressViewIOS';
exports.examples = [{
title: 'ProgressViewIOS',
render() {
return (
<ProgressViewExample/>
);
}
}];
var styles = StyleSheet.create({
container: {
marginTop: -20,
backgroundColor: 'transparent',
},
progressView: {
marginTop: 20,
}
});