react-native menuModal (more & simple)

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使用方式:

 {
     console.log(`item: ${item}\nindex:${index}`);
    }}
    data={[{text:'tableName'}]}
    requestClose={() => this.setState({visible: false})}
    visible={visible}/>

说明：

1. data => [{text:'name',icon:{uri:'https://jianshu.com/s.png'}},{text:'name',icon:require('..')}},]
   如果你想使用有一个icon并有个文字的menu的话那你写一个array然后它里面再写一个object{text:'',icon:''}就可以了（这里的text是table的文字icon是图标。。。）

列子:

import React, {Component} from 'react'
import {View} from 'react-native'
import NurMenuModal from "./NurMenuModal";

export default class NurApp extends Component {

    constructor(props) {
        super(props);
        this.state = {}
    }

    render() {
        const {visible} = this.state;

        let data = [
            {
                text: 'table 1',
            },
            {
                text: 'table 2',
            },
            {
                text: 'table 3',
            }];
        return (
            

                ...
                 {
                        console.log(`item: ${item}\nindex:${index}`);
                    }}
                    data={data}
                    requestClose={() => this.setState({visible: false})}
                    visible={visible}/>
            
        )
    }
}

组件 （NurMenuModal.js）

import React, {Component} from 'react'
import {
    Image,
    LayoutAnimation,
    Platform,
    ScrollView,
    StyleSheet,
    Text,
    TouchableOpacity,
    UIManager,
    View,
} from 'react-native'

export default class NurMenuModal extends Component {

    constructor(props) {
        super(props);
        this.state = {
            boxVisible: true,
            itemAnim: false,
        }
    }

    propTypes: {
        visible: PropTypes.boolean,
        /**
         * data={[]}
         */
        data: PropTypes.array,
        /**
         * requestClose={()=>{
         *   ...
         * }}
         */
        requestClose: PropTypes.func,

        /**
         * 点击方法
         * onItemClick={(item,index)=>{
         *   ...
         * }}
         */
        onItemClick: PropTypes.func,
    };


    startAnim(start) {
        if (Platform.OS === 'android') {
            UIManager.setLayoutAnimationEnabledExperimental(true);
        }
        LayoutAnimation.configureNext(LayoutAnimation.Presets.easeInEaseOut);
        setTimeout(() => {
            this.setState({
                boxVisible: start,
                itemAnim: start,
            })
        }, start ? 100 : 300)
    }


    renderItem(item, index) {
        const {visible, onItemClick, requestClose} = this.props;
        const {itemAnim} = this.state;

        return  {
                onItemClick && onItemClick(item, index);
                requestClose && requestClose();
            }}>
            {visible && item.text}

            {visible && }
        ;
    }


    render() {
        const {visible, data, requestClose} = this.props;
        if (!data) return null;
        if (data.length < 0) return null;

        let {boxVisible} = this.state;
        if (visible)
            boxVisible = visible;

        if (visible !== this.visible) {
            this.visible = visible;
            this.startAnim(visible);
        }

        return (
             requestClose && requestClose()}
                style={boxVisible && {
                    flex: 1,
                    position: 'absolute',
                    left: 0,
                    right: 0,
                    top: 0,
                    bottom: 0,
                    elevation: 10,
                }}>
                
                    
                        {data.map((item, index) => this.renderItem(item, index))}
                    
                
            
        )
    }
}

const styles = StyleSheet.create({
    box: {
        position: 'absolute',
        backgroundColor: 'white',
        elevation: 10,
        minWidth: 160,
        maxHeight: '80%',
        right: 10,
        top: 10,
    },
    item: {
        justifyContent: 'space-between',
        flexDirection: 'row',
        alignItems: 'center',
        height: 40,
        paddingHorizontal: 16,
    },
    icon: {
        width: 22,
        height: 22,
        tintColor: 'black',
    }
});

这是我由于工资想要而写的。。。所以可能有一些小问题。如果有改的地方的话直接留言。thanks