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Android 如何在react native中拥有多个独立的交换机?_Android_React Native - Fatal编程技术网

Android 如何在react native中拥有多个独立的交换机?

Android 如何在react native中拥有多个独立的交换机?,android,react-native,Android,React Native,我在一项活动中有5个开关工作正常。但问题是,所有开关都是相互连接的,即,如果一个开关打开,所有开关都会打开 如何使它们独立切换,而不受其他切换操作的影响 我的代码- state = { colorTrueSwitchIsOn: true, colorFalseSwitchIsOn: false, }; class Notification extends Component { static navigationOptions = ({ navigat

我在一项活动中有5个开关工作正常。但问题是,所有开关都是相互连接的,即,如果一个开关打开,所有开关都会打开

如何使它们独立切换,而不受其他切换操作的影响

我的代码-

state = {
    colorTrueSwitchIsOn: true,
    colorFalseSwitchIsOn: false,
};

class Notification extends Component {

    static navigationOptions = ({
        navigation
    }) => ({
        header: props => < Header
        navigation = {
            navigation
        }
        title = {
            'NOTIFICATION SETTINGS'
        }
        toggleDrawer /
        >
    })

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

            SwitchOnValueHolder: false

        };
    }



    ShowAlert = (value) => {

        this.setState({

            SwitchOnValueHolder: value
        })

        if (value == true) {

            //Perform any task here which you want to execute on Switch ON event.
            Toast.show('Switch is On');
        }
        else {

            //Perform any task here which you want to execute on Switch OFF event.
            Toast.show('Switch is On');
        }

    }

    render() {
        return ( <
            View style = {
                styles.container
            } >

            <
            ScrollView >



            <
            View style = {
                {
                    flex: 1,
                    flexDirection: 'row'
                }
            } >




            <
            View style = {
                {
                    width: '25%',
                    height: 50,
                }
            } >

            <
            Switch onValueChange = {
                (value) => this.setState({
                    colorTrueSwitchIsOn: value
                })
            }
            onTintColor = "#FFE2C6"
            thumbTintColor = "#FF952E"
            tintColor = "#D7D0C9"
            value = {
                this.state.colorTrueSwitchIsOn
            }
            />

            <
            /View>

            <
            /View>


            <
            View style = {
                {
                    flex: 1,
                    flexDirection: 'row'
                }
            } >




            <
            View style = {
                {
                    width: '25%',
                    height: 50,
                }
            } >

            <
            Switch onValueChange = {
                (value) => this.setState({
                    colorTrueSwitchIsOn: value
                })
            }
            onTintColor = "#FFE2C6"
            thumbTintColor = "#FF952E"
            tintColor = "#D7D0C9"
            value = {
                this.state.colorTrueSwitchIsOn
            }
            />

            <
            /View>

            <
            /View>


            <
            View style = {
                {
                    flex: 1,
                    flexDirection: 'row',
                    marginBottom: 20
                }
            } >




            <
            View style = {
                {
                    width: '25%',
                    height: 50,
                    top: 10
                }
            } >

            <
            Switch onValueChange = {
                (value) => this.setState({
                    colorTrueSwitchIsOn: value
                })
            }
            onTintColor = "#FFE2C6"
            thumbTintColor = "#FF952E"
            tintColor = "#D7D0C9"
            value = {
                this.state.colorTrueSwitchIsOn
            }
            />

            <
            /View>

            <
            /View>


            <
            View style = {
                {
                    flex: 1,
                    flexDirection: 'row'
                }
            } >




            <
            View style = {
                {
                    width: '25%',
                    height: 50,
                }
            } >

            <
            Switch onValueChange = {
                (value) => this.setState({
                    colorTrueSwitchIsOn: value
                })
            }
            onTintColor = "#FFE2C6"
            thumbTintColor = "#FF952E"
            tintColor = "#D7D0C9"
            value = {
                this.state.colorTrueSwitchIsOn
            }
            />

            <
            /View>

            <
            /View>


            <
            View style = {
                {
                    flex: 1,
                    flexDirection: 'row'
                }
            } >




            <
            View style = {
                {
                    width: '25%',
                    height: 50,
                }
            } >

            <
            Switch onValueChange = {
                (value) => this.setState({
                    colorTrueSwitchIsOn: value
                })
            }
            onTintColor = "#FFE2C6"
            thumbTintColor = "#FF952E"
            tintColor = "#D7D0C9"
            value = {
                this.state.colorTrueSwitchIsOn
            }
            />

            <
            /View>

            <
            /View>

            <
            /View>

            <
            /ScrollView>

            <
            /View>
        )
    }
}

const styles = StyleSheet.create({
    container: {
        flex: 1,
        alignContent: 'center',
        backgroundColor: "#fff",
    },

    layout: {
        marginTop: 15,
        marginBottom: 5,
        marginLeft: 15,
        marginRight: 10,
    }

})

export default Notification 
状态={
真的,
颜色错误:错误,
};
类通知扩展了组件{
静态导航选项=({
航行
}) => ({
标题:道具=>
}) 建造师(道具){ 超级(道具); 此.state={ SwitchOnValueHolder:错误 }; } ShowAlert=(值)=>{ 这是我的国家({ SwitchOnValueHolder:值 }) 如果(值==true){ //在此处执行您希望在“打开开关”事件中执行的任何任务。 Toast.show(“开关打开”); } 否则{ //在此处执行您希望在关闭事件时执行的任何任务。 Toast.show(“开关打开”); } } render(){ 报税表(< 视图样式={ 样式.容器 } > < 滚动视图> < 视图样式={ { 弹性:1, flexDirection:“行” } } > < 视图样式={ { 宽度:“25%”, 身高:50, } } > < 打开值更改={ (值)=>this.setState({ colorTrueSwitchIsOn:值 }) } onTintColor=“#FFE2C6” thumbTintColor=“#FF952E” tintColor=“#D7D0C9” 值={ this.state.colorTrueSwitchIsOn } /> < /查看> < /查看> < 视图样式={ { 弹性:1, flexDirection:“行” } } > < 视图样式={ { 宽度:“25%”, 身高:50, } } > < 打开值更改={ (值)=>this.setState({ colorTrueSwitchIsOn:值 }) } onTintColor=“#FFE2C6” thumbTintColor=“#FF952E” tintColor=“#D7D0C9” 值={ this.state.colorTrueSwitchIsOn } /> < /查看> < /查看> < 视图样式={ { 弹性:1, flexDirection:'行', marginBottom:20 } } > < 视图样式={ { 宽度:“25%”, 身高:50, 前10名 } } > < 打开值更改={ (值)=>this.setState({ colorTrueSwitchIsOn:值 }) } onTintColor=“#FFE2C6” thumbTintColor=“#FF952E” tintColor=“#D7D0C9” 值={ this.state.colorTrueSwitchIsOn } /> < /查看> < /查看> < 视图样式={ { 弹性:1, flexDirection:“行” } } > < 视图样式={ { 宽度:“25%”, 身高:50, } } > < 打开值更改={ (值)=>this.setState({ colorTrueSwitchIsOn:值 }) } onTintColor=“#FFE2C6” thumbTintColor=“#FF952E” tintColor=“#D7D0C9” 值={ this.state.colorTrueSwitchIsOn } /> < /查看> < /查看> < 视图样式={ { 弹性:1, flexDirection:“行” } } > < 视图样式={ { 宽度:“25%”, 身高:50, } } > < 打开值更改={ (值)=>this.setState({ colorTrueSwitchIsOn:值 }) } onTintColor=“#FFE2C6” thumbTintColor=“#FF952E” tintColor=“#D7D0C9” 值={ this.state.colorTrueSwitchIsOn } /> < /查看> < /查看> < /查看> < /滚动视图> < /查看> ) } } const styles=StyleSheet.create({ 容器:{ 弹性:1, 对齐内容:“中心”, 背景颜色:“fff”, }, 布局:{ 玛金托普:15, marginBottom:5, marginLeft:15, marginRight:10, } }) 导出默认通知
如何解决此错误?
我试着用不同的开关来调用它,但都不起作用

您已将所有开关值链接到同一状态变量;颜色开关。还有所有的onValueChange方法
this.state = {
    switchVal1: true,
    switchVal2: false
};
<Switch onValueChange = {(value) => this.setState({switchVal1: value})}
    value = {this.state.switchVal1}/>


<Switch onValueChange = {(value) => this.setState({switchVal2: value})}
    value = {this.state.switchVal2}/>