TestExample.js

// ToastExample.js
/**
 * This exposes the native ToastExample module as a JS module. This has a
 * function 'show' which takes the following parameters:
 *
 * 1. String message: A string with the text to toast
 * 2. int duration: The duration of the toast. May be ToastExample.SHORT or
 * ToastExample.LONG
 */
import { NativeModules } from "react-native";
// 下一句中的ToastExample即对应上文
// public String getName()中返回的字符串
export default NativeModules.TestExample;
// export default global.nativeTest;