@mere1y/react-native-step-counter
v0.2.7
Published
This library provides an interface for tracking the number of steps taken by the user in a React Native app.
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React-Native Step Counter Library
한국어 사용자는 Korean version.를 참조하십시오.
This library provides an interface for tracking the number of steps taken by the user in a React Native app. This package uses the StepCounter
(or Custom accelerometer-based step-counter) Sensor API on Android and the Core Motion
framework on iOS to count the steps. It's built using Turbo Module, a new module development architecture for React Native. I made this library compatible with both new and legacy architectures. (Because the turbo module is still in the experimental stage. so it is not widely used.)
Installation
# if you use pure npm (what a classic!),
npm install react-native-step-counter
# or if you prefer to use Yarn (I love it's parallel install feature),
yarn add react-native-step-counter
# or if you use pnpm (it's fast and efficient),
pnpm add react-native-step-counter
Native modules will automatically connect after React Native 0.60 version. So you don't need to link the native modules manually.
👣 if you are using the legacy architecture, you need to follow the guide below. otherwise, you can skip next step.
IF YOU WANT SEE A DEMO IN STANDALONE REACT-NATIVE APPLICATION, SEE WALKING_TRACKER EXAMPLE REPO
Thank you for your interest in my first NPM open source package! I've received a lot of issue reports on various issues, especially the react-native's NEW ARCHITECTURE
backwards compatibility, and I've more or less finalized those issues by fixing the code structure across the board. We had generated an example folder from create-react-native-library's template and used it for this project, but due to the structure of that template, we found that the example folder contained a lot of code that was not suitable for reference in a working app, as it was part of the overall development process rather than a standalone application. For this reason, I'm going to independently manage the example application, which we had been developing informally as a sub-repository, as a repository named walking_tracker. I'd really appreciate it if you could take this into consideration.
Setup the New Architecture
Applying a new architecture to React Native applications (Common)
- React Native released the support for the New Architecture with the release
0.68.0
. - This is written with the expectation that you’re using the latest React Native release.
- You can find instructions on how to upgrade in the page upgrading to new versions.
- write all JS bridges with TypeScript (or Flow.js) because Codegen requires explicitly defined types. As you know, JavaScript is a dynamically typed language, so it is not possible to generate code.
- use hermes and flipper debugging tools.
- React Native released the support for the New Architecture with the release
Applying a new architecture to React Native iOS applications
1. set platform version to 12.4 or higher. (min_ios_version_supported)
- platform :ios, '11.0' + platform :ios, '12.4' # ↓ or you can use the variable of (react_native_pods.rb) + platform :ios, min_ios_version_supported
2. set NODE_BINARY to .xcode.env file.
echo 'export NODE_BINARY=$(command -v node)' > .xcode.env
3. Fix an API Change in the
AppDelegate.m
file.- (NSURL *)sourceURLForBridge:(RCTBridge *)bridge { #if DEBUG - return [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index" fallbackResource:nil]; + return [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index"]; #else return [[NSBundle mainBundle] URLForResource:@"main" withExtension:@"jsbundle"]; #endif }
4. Rename all Objective-C(.m) files to Objective-C++ (.mm) 5. Make your AppDelegate conform to RCTAppDelegate
ios/StepCounterExample/AppDelegate.h
- #import <React/RCTBridgeDelegate.h> + #import <RCTAppDelegate.h> #import <UIKit/UIKit.h> - @interface AppDelegate : UIResponder <UIApplicationDelegate, RCTBridgeDelegate> + @interface AppDelegate : RCTAppDelegate - @property (nonatomic, strong) UIWindow *window; @end
ios/StepCounterExample/AppDelegate.mm
#import "AppDelegate.h" #import <React/RCTBundleURLProvider.h> @implementation AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.moduleName = @"StepCounterExample"; self.initialProps = @{}; return [super application:application didFinishLaunchingWithOptions:launchOptions]; } - (NSURL *)sourceURLForBridge:(RCTBridge *)bridge { #if DEBUG return [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index"]; #else return [[NSBundle mainBundle] URLForResource:@"main" withExtension:@"jsbundle"]; #endif } - (BOOL)concurrentRootEnabled { return true; } @end
Run
pod install
export RCT_NEW_ARCH_ENABLED=1 cd ios && pod install
Applying a new architecture to React Native Android applications
- If your project has React Native later than
v0.71.0
, you already meet all the prerequisites to use the New Architecture on Android. - You will only need to set
newArchEnabled
totrue
in yourandroid/gradle.properties
file.
- If your project has React Native later than
If you prefer to read the official documentation, you can find it here.
ANDROID
3 uses-permission, 3 uses-feature
<!-- android/src/main/AndroidManifest.xml-->
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.stepcounter">
<uses-permission android:name="android.permission.ACTIVITY_RECOGNITION" />
<uses-permission android:name="android.permission.BODY_SENSORS_BACKGROUND" />
<uses-feature
android:name="android.hardware.sensor.stepcounter"
android:required="false" />
<uses-feature
android:name="android.hardware.sensor.accelerometer"
android:required="true" />
</manifest>
iOS
set NSMotionUsageDescription
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN">
<plist version="1.0">
...
<key>NSMotionUsageDescription</key>
<string>We want to access your motion data to count your steps.</string>
...
</plist>
Interface
isStepCountingSupported()
: Promise<Record<string, boolean>>: method to check if the device has a feature related step counter or accelerometer.- One key for the response object is
granted
, whether the app user has granted this feature permission, andsupported
is whether the device supports this feature. - This NativeModule can apply algorithms to a raw accelerometer to extract walking event data without activity sensor privileges, regardless of this response, but it is not recommended. You must write a code that stops tracking sensor events if user denies read-permission - even if you can do that.
- One key for the response object is
startStepCounterUpdate(start: Date, callBack: StepCountUpdateCallback)
: EmitterSubscription:- If the pedometer sensor is available and supported on the device, register it with the listener in the sensor manager, and return the step count event listener.
- If the pedometer sensor is not supported by the device or is not available, register the accelerometer sensor with the listener, generate a accel event through an vector algorithm filter and receive it to the app.
stopStepCounterUpdate(): void
:- unregister registered listener from
sensorManager
and release it.
- unregister registered listener from
StepCountData
:Common Interface
steps
: This is a number property that indicates the number of steps taken by the user during the specified time period.startDate
: This is a number property that indicates the start date of the data in Unix timestamp format, measured in milliseconds.endDate
: This is a number property that indicates the end date of the data in Unix timestamp format, measured in milliseconds.distance
: This is a number property that indicates the distance in meters that the user has walked or run during the specified time period.counterType
: The name of the sensor used to count the number of steps. In iOS, only theCMPedometer
is returned, and in Android, theStepCounter
orAccelerometer
is returned depending on the device state.
iOS Only
floorsAscended
: This is a number property that indicates the number of floors the user has ascended during the specified time period. it can be nil if the device does not support this feature.floorsDescended
: This is a number property that indicates the number of floors the user has descended during the specified time period. it can be nil if the device does not support this feature.currentPace
: (iOS 9.0+) This is a number property that indicates the current pace of the user in meters per second.currentCadence
: (iOS 9.0+) This is a number property that indicates the current cadence of the user in steps per second.averageActivePace
: (iOS 10.0+) This is a number property that indicates the average pace of the user in meters per second.
Usage
To use the Step Counter Library in your React Native app, follow these steps:
Import the library into your React Native app.
import React, { useEffect, useState } from 'react';
import {
isStepCountingSupported,
parseStepData,
startStepCounterUpdate,
stopStepCounterUpdate,
} from 'react-native-step-counter';
Use the isStepCountingSupported
method to check if the device has a step counter or accelerometer sensor.
const [supported, setSupported] = useState(false);
const [granted, setGranted] = useState(false);
async function askPermission() {
isStepCountingSupported().then((result) => {
console.debug('🚀 - isStepCountingSupported', result);
setGranted(result.granted === true);
setSupported(result.supported === true);
});
}
Call the startStepCounterUpdate
method to start the step counter service.
const [steps, setSteps] = useState(0);
async function startStepCounter() {
startStepCounterUpdate(new Date(), (data) => {
console.debug(parseStepData(data));
setSteps(data.steps);
});
}
Here's an example of a complete React component that uses the NativeStepCounter
.
Link to Example Application: here
Change Log
See the Release Notes
for a list of changes.
Contributing
See the Contributing Guide
to learn how to contribute to the repository and the development workflow.
License
MIT
Made with create-react-native-library