@secret-knock/react-native

🤫✊🚪 Secret knock

A hook for handling secret knocks in React Native.

This also exists for React.

🚪 Install

// 🧶 Yarn
yarn add @secret-knock/react-native

// 📦 NPM
npm install --save @secret-knock/react-native

✊ Usage

import { useSecretKnock } from "@secret-knock/react-native";

useSecretKnock takes two properties:

1. The secret sequence

A mandatory string representing the correct sequence of knocks:

const { ... } = useSecretKnock("...---/...");

Character	Represents	Time
"."	A normal press	Less than 500 ms
"-"	A long press	500 ms
"/" or " "	A pause	No pressing for 1500 ms

Waiting for 2000 ms between presses will reset the sequence.

2. The optional options

If you're not satisfied, maybe you should try playing around for yourself a bit.

import { useSecretKnock } from "@secret-knock/react-native";
import { MyCustomButton } from "../MyCustomButton";

const { ... } = useSecretKnock("...",
    {
        component: MyCustomButton,
        longPressMs: 500,
        pauseMs: 1500,
        timeoutMs: 2000,
        resetWhenWrong: true,
    }
);

Option	Type	Default value	Description
component	(props) => JSX.Element	Pressable	Use this if you want to use your own button instead of React Native's own Pressable
longPressMs	number	500	The amount of time to press and hold for it to register as a "long press" ("-")
pauseMs	number	1500	The amount of time to pause between knocks for it to register as a pause in the input sequence ("/" or " ")
timeoutMs	number	2000	Exceeding this amount of time between knocks wil reset the input sequence.
resetWhenWrong	boolean	true	Whether or not to reset the input sequence when a wrong knock has been registered. I think it's best to keep this set to true, but maybe you disagree.

🤫 Example

import React from "react";
import { Pressable, Text, View } from "react-native";
import { useSecretKnock } from "@secret-knock/react-native";

export const HiddenSecret = () => {
    // press, press, press, long press,
    // pause, press, press, press,
    // long press, long press, long press
    const secretKnockSequence = "...-/...---";

    const {
        unlocked,
        progress,
        Knocker,
        reset,
    } = useSecretKnock(secretKnockSequence);

    return (
        <View>
            <Knocker>
                <Text>Knock me!</Text>
            </Knocker>

            <View style={{ backgroundColor: "#ccc" }}>
                <View
                    style={{
                        height: 10,
                        width: `${progress * 100}%`,
                        backgroundColor: unlocked ? "lime" : "red",
                    }}
                />
            </View>

            {unlocked && (
                <Pressable onPress={reset}>
                    <Text>Reset</Text>
                </Pressable>
            )}
        </View>
    );
};