efunbox-mobile-8/pages/Splash.js

import React, { PureComponent } from 'react';
import { StyleSheet, Text, View, Image, TouchableOpacity, StatusBar, ToastAndroid, TextInput } from 'react-native';
import BasePage from './BasePage';
import SplashScreen from 'react-native-splash-screen';
import commonutil from './utils/commonutil';
export default class Splash extends BasePage {
	state = {
		exist: false,
		MainPageParams: ''
	};
	render() {
		return (
			<View style={{ flex: 1 }}>
				<StatusBar backgroundColor={'transparent'} translucent={true} />
				<View style={{ flex: 1 }} />
				<View style={{ flex: 5 }}>
					<Text style={{ fontSize: 30 }}>模拟活动广告。。。。</Text>
				</View>
			</View>
		);
	}

	componentWillMount() {
		// global.storage.remove({ key: 'userInfo' });
		this.getUserInfo();
	}

	componentDidMount() {}

	async getUserInfo() {
		//判断是否有用户
		await global.storage
			.load({
				key: 'userInfo'
			})
			.then((result) => {
				var usermap = commonutil.jsonToMap(result);
				this.setState({
					exist: true,
					MainPageParams: usermap.get('ageGroup')
				});
				this.Advertisement();
			})
			.catch((err) => {
				console.log(err.message);
				switch (err.name) {
					case 'NotFoundError':
						// TODO;
						// alert('NotFoundError');
						this.setState({
							exist: false
						});
						SplashScreen.hide();
						this.Advertisement();
						break;
					case 'ExpiredError':
						// TODO
						// alert('ExpiredError');
						break;
				}
			});
	}

	//获取用户之后的操作，或者是别的操作。
	Advertisement() {
		//假装3秒广告
		setTimeout(() => {
			if (this.state.exist) {
				this.clearPageToNext('MainPage');
			} else {
				this.clearPageToNext('Login');
			}
		}, 3000);
	}
}