循环反应原生 [英] Loop in react-native

问题描述

我想根据用户选择的玩家数量制作一个字段列表.我想做这样的事情:

I want to make a list of fields depending on the number of the player that user has selected. I wanted to make something like this:

generatePaymentField() {
    var noGuest = this.state.guest;
    var payment = 
    <View>
        <View>
            <View><Text>No</Text></View>
            <View><Text>Name</Text></View>
            <View><Text>Preference</Text></View>
        </View>;

    for (var i=0; i < noGuest; i++) {
        payment = payment + 
            <View>
                <View>
                    <TextInput />
                </View>
                <View>
                    <TextInput />
                </View>
                <View>
                    <TextInput />
                </View>
            </View>;
    }
    return payment;
}

render () {
    var payment = this.generatePaymentField();
    this.setState({payment : payment});
    return (
        <View>
            {this.state.payment}
        </View>;
    )
}

但 react-native 将上述语法视为指向 for 循环行的意外标记".我还有其他方法可以做到这一点吗?

But react-native regarded the syntax above as 'unexpected token' pointing at the for loop line. Is there any other way I can achieve doing this?

推荐答案

这应该可行

render(){

	var payments = [];

	for(let i = 0; i < noGuest; i++){

		payments.push(
			<View key = {i}>
				<View>
					<TextInput />
				</View>
				<View>
					<TextInput />
				</View>
				<View>
					<TextInput />
				</View>
			</View>
		)
	}
	
	return (
		<View>
			<View>
				<View><Text>No</Text></View>
				<View><Text>Name</Text></View>
				<View><Text>Preference</Text></View>
			</View>

			{ payments }
		</View>
	)
}

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