我的项目中需要如果波及钱包,领取等性能,能够大概率会用到输出明码组件,也算是个常见组件吧。
之前写过一个纯 js 的开源组件,应用的类的模式,也比拟老了,可间接增加 npm 库到我的项目中进行应用。
最近我的项目须要,又从新写了一个 hooks 版本的,当初间接上源码,对于不想增加依赖库的搭档,可间接复制源码到我的项目中,间接应用。
'use strict';
import React, {useRef, useState} from 'react';
import {StyleSheet, View, Pressable, TextInput} from 'react-native';
// 领取明码输入框
const PasswordInput = ({isAutoFocus = false}) => {const [msg, setMsg] = useState('');
const textInputRef = useRef();
const onEnd = (text: string) => {console.log('输出明码:', text);
};
const _getInputItem = () => {let inputItem = [];
for (let i = 0; i < 6; i++) {
inputItem.push(<View key={i} style={i === 5 ? [styles.textInputView, {borderRightWidth: 1}] : [styles.textInputView, {borderRightWidth: 0}]}>
{i < msg.length ? <View style={{width: 16, height: 16, backgroundColor: '#222', borderRadius: 8}} /> : null}
</View>,
);
}
return inputItem;
};
const _onPress = () => {textInputRef?.current.focus();
};
return (<Pressable onPress={_onPress}>
<View style={styles.container}>
<View style={{flexDirection: 'row', marginTop: 36, justifyContent: 'center'}}>
<TextInput
style={styles.textInputMsg}
ref={textInputRef}
maxLength={6}
autoFocus={isAutoFocus}
keyboardType="number-pad"
defaultValue={msg}
onChangeText={text => {setMsg(text);
if (text.length === 6) {onEnd(text);
}
}}
/>
{_getInputItem()}
</View>
</View>
</Pressable>
);
};
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: '#ffffff',
justifyContent: 'center',
alignItems: 'center',
},
textInputView: {
height: 85 / 2,
width: 85 / 2,
borderWidth: 1,
borderColor: '#c9c7c7',
justifyContent: 'center',
alignItems: 'center',
},
textInputMsg: {
height: 45,
zIndex: 99,
position: 'absolute',
width: 45 * 6,
opacity: 0,
},
});
export default PasswordInput;
应用形式就很简略了:
<PasswordInput />
我的项目库地址链接 Github:
https://github.com/wayne214/r…