React Native的模态，AsyncStorage，DeviceEventEmitter

<Modal
    animationType='slide'
    transparent={false}
    visible={this.state.isModal}
    onRequestClose={() => this.onRequestClose()}>
    <HalfHourHot removeModal={(data) => this.closeModal(data)}/>
</Modal>

    constructor(props) {
        super(props);
        this.state = {
            isModal: false,
        };
    };

    onRequestClose() {
        this.setState({
            isModal: false,
        });
    };

    closeModal(data) {
        this.setState({
            isModal: data,
        });
    };

    static propTypes = {
        removeModal: PropTypes.func,
    };

    //某处操作需要返回到A界面
    popToHome(data) {
        //this.props.navigator.pop();
        this.props.removeModal(data);
    }

    componentDidMount() {
        this.listener = DeviceEventEmitter.addListener('listen', (value) => {
            console.log(value.num);
        });
    };

    componentWillUnmount() {
        this.listener.remove('listen');
    };

DeviceEventEmitter.emit('listen', {num: 12});