它揭示了如何将本地 ToastAndroid 模块作为一个 JS 模块。它有一个名为 showText的函数，其拥有的参数如下所示：
字符串消息：将文本传递给 toast 的字符串
int 持续期：toast 的持续期。可能是 ToastAndroid.SHORT或 ToastAndroid.LONG
static show(message: string, duration: number)
SHORT: MemberExpression
LONG: MemberExpression
'use strict';
var React = require('react-native');
var {
StyleSheet,
Text,
ToastAndroid,
TouchableWithoutFeedback
} = React;
var UIExplorerBlock = require('UIExplorerBlock');
var UIExplorerPage = require('UIExplorerPage');
var ToastExample = React.createClass({
statics: {
title: 'Toast Example',
description: 'Toast Example',
},
getInitialState: function() { return {};
},
render: function() { return (
<UIExplorerPage title="ToastAndroid">
<UIExplorerBlock title="Simple toast">
<TouchableWithoutFeedback
onPress={() =>
ToastAndroid.show('This is a toast with short duration', ToastAndroid.SHORT)}>
<Text style={styles.text}>Click me.</Text>
</TouchableWithoutFeedback>
</UIExplorerBlock>
<UIExplorerBlock title="Toast with long duration">
<TouchableWithoutFeedback
onPress={() =>
ToastAndroid.show('This is a toast with long duration', ToastAndroid.LONG)}>
<Text style={styles.text}>Click me too.</Text>
</TouchableWithoutFeedback>
</UIExplorerBlock>
</UIExplorerPage>
);
},
});
var styles = StyleSheet.create({
text: {
color: 'black',
},
});
module.exports = ToastExample;