README.md

react-native-smart-gesture-password

A smart gesture password locker for react-native apps, written in JS for cross-platform support. It works on iOS and Android.

This component is compatible with React Native 0.25 and newer.

Preview

Installation

npm install react-native-smart-gesture-password --save

Full Demo

see ReactNativeComponentDemos

Usage

Install the GesturePassword from npm with npm install react-native-smart-gesture-password --save. Then, require it from your app's JavaScript files with import GesturePassword from 'react-native-smart-gesture-password'.

import React, {
    Component,
} from 'react'
import {
    StyleSheet,
    Alert,
    View,
    Text,
    Dimensions,
} from 'react-native'

import GesturePassword from '../../react-native-smart-gesture-password'
import Button from '../../react-native-smart-button'

export default class gesturePasswordDemo extends Component {

    // 构造
    constructor (props) {
        super(props);
        // 初始状态
        this.state = {
            isWarning: false,
            message: 'Verify your gesture password',
            messageColor: '#A9A9A9',
            password: '',
            thumbnails: [],
        };
        this._cachedPassword = ''
    }

    componentDidMount () {
        this._cachedPassword = '13457' //get cached gesture password
    }

    render () {
        return (
            <GesturePassword
                style={{paddingTop: 20 + 44,}}
                pointBackgroundColor={'#F4F4F4'}
                isWarning={this.state.isWarning}
                color={'#A9A9A9'}
                activeColor={'#00AAEF'}
                warningColor={'red'}
                warningDuration={1500}
                allowCross={true}
                topComponent={this._renderDescription()}
                bottomComponent={this._renderActions()}
                onFinish={this._onFinish}
                onReset={this._onReset}
            />
        )
    }

    _renderThumbnails () {
        let thumbnails = []
        for (let i = 0; i < 9; i++) {
            let active = ~this.state.password.indexOf(i)
            thumbnails.push((
                <View
                    key={'thumb-' + i}
                    style={[
                        {width: 8, height: 8, margin: 2, borderRadius: 8, },
                        active ? {backgroundColor: '#00AAEF'} : {borderWidth: 1, borderColor: '#A9A9A9'}
                    ]}
                />
            ))
        }
        return (
            <View style={{width: 38, flexDirection: 'row', flexWrap: 'wrap'}}>
                {thumbnails}
            </View>
        )
    }

    _renderDescription = () => {
        return (
            <View style={{height: 158, paddingBottom: 10, justifyContent: 'flex-end', alignItems: 'center',}}>
                {this._renderThumbnails()}
                <Text
                    style={{fontFamily: '.HelveticaNeueInterface-MediumP4', fontSize: 14, marginVertical: 6, color: this.state.messageColor}}>{this.state.message}</Text>
            </View>
        )
    }

    _renderActions = () => {
        return (
            <View
                style={{position: 'absolute', bottom: 0, flex:1, justifyContent: 'space-between', flexDirection: 'row', width: Dimensions.get('window').width, }}>
                <Button
                    style={{ margin: 10, height: 40, justifyContent: 'center', }}
                    textStyle={{fontSize: 14, color: '#A9A9A9'}}>
                    Forget password
                </Button>
                <Button
                    style={{ margin: 10, height: 40, justifyContent: 'center', }}
                    textStyle={{fontSize: 14, color: '#A9A9A9'}}>
                    Login other accounts
                </Button>
            </View>
        )
    }

    _onReset = () => {
        let isWarning = false
        //let password = ''
        let message = 'Verify your gesture password'
        let messageColor = '#A9A9A9'
        this.setState({
            isWarning,
            //password,
            message,
            messageColor,
        })
    }

    _onFinish = (password) => {
        if (password === this._cachedPassword) {
            let isWarning = false
            let message = 'Verify succeed'
            let messageColor = '#00AAEF'
            this.setState({
                isWarning,
                password,
                message,
                messageColor,
            })
        }
        else {
            let isWarning = true
            let message
            let messageColor = 'red'
            if (password.length < 4) {
                message = 'Need to link at least 4 points'
            }
            else {
                message = 'Verify failed'
            }
            this.setState({
                isWarning,
                password,
                message,
                messageColor,
            })
        }
        Alert.alert('password is ' + password)
    }

}

Props

Prop	Type	Optional	Default	Description
pointBackgroundColor	string	Yes	'transparent'	determine bgcolor of gesture point
gestureAreaLength	number	Yes	222	determine width and height of gesture area
color	string	Yes	'#A9A9A9'	determine color of normal gesture point
activeColor	string	Yes	'#00AAEF'	determine color of active gesture point
warningColor	string	Yes	'red'	determine color of warning gesture point
lineColor	string	Yes		determine color of line, if does not set this, the color of line will be the same as gesture point
lineWidth	string	Yes	1	determine width of line
warningDuration	number	Yes	1500	determine duration when gesture status is warning
topComponent	element	Yes		determine the presentation above gesture area
bottomCompont	element	Yes		determine the presentation below gesture area
isWarning	bool	Yes	false	determine gesture warning status
showArrow	bool	Yes	true	determine whether show arrow in point
allowCross	bool	Yes	true	determine whether allow a line cross a point
onStart	func	Yes		determine the listener which is called before gesture is granted
onReset	func	Yes		determine the listener which is called after gesture is reseted
onFinish	func	Yes		determine the listener which is called after gesture actions is finished