react-native/RNTester/js/TVEventHandlerExample.js

99 lines
1.9 KiB
JavaScript

/**
* Copyright (c) 2017-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
*/
'use strict';
var React = require('react');
var ReactNative = require('react-native');
var {
Platform,
StyleSheet,
View,
Text,
TouchableOpacity,
TVEventHandler,
} = ReactNative;
exports.framework = 'React';
exports.title = 'TVEventHandler example';
exports.description = 'iOS alerts and action sheets';
exports.examples = [
{
title: 'TVEventHandler',
render() {
return <TVEventHandlerView />;
},
},
];
class TVEventHandlerView extends React.Component<
$FlowFixMeProps,
{
lastEventType: string,
},
> {
constructor(props) {
super(props);
this.state = {
lastEventType: '',
};
}
_tvEventHandler: any;
_enableTVEventHandler() {
this._tvEventHandler = new TVEventHandler();
this._tvEventHandler.enable(this, function(cmp, evt) {
cmp.setState({
lastEventType: evt.eventType,
});
});
}
_disableTVEventHandler() {
if (this._tvEventHandler) {
this._tvEventHandler.disable();
delete this._tvEventHandler;
}
}
componentDidMount() {
this._enableTVEventHandler();
}
componentWillUnmount() {
this._disableTVEventHandler();
}
render() {
if (Platform.isTV) {
return (
<View>
<TouchableOpacity onPress={() => {}}>
<Text>
This example enables an instance of TVEventHandler to show the
last event detected from the Apple TV Siri remote or from a
keyboard.
</Text>
</TouchableOpacity>
<Text style={{color: 'blue'}}>{this.state.lastEventType}</Text>
</View>
);
} else {
return (
<View>
<Text>This example is intended to be run on Apple TV.</Text>
</View>
);
}
}
}