About this library
This is React Native Bluetooth Low Energy library using RxBluetoothKit and RxAndroidBle under the hood.
It supports:
- observing device's Bluetooth adapter state
- scanning BLE devices
- making connections to peripherals
- discovering services/characteristics
- reading/writing characteristics
- observing characteristic notifications/indications
- reading RSSI
- negotiating MTU
- background mode on iOS
- turning the device's Bluetooth adapter on
What this library does NOT support:
- communicating between phones using BLE (Peripheral support)
- bonding peripherals
Compatibility
React Native | 1.0.3 | 1.1.0 |
---|---|---|
0.60.5 | ✅2 | ✅2 |
0.59.10 | ✅ | ✅ |
0.58.6 | ✅ | ✅ |
0.57.8 | ✅ | ✅ |
0.56.1 | 💥1 | 💥1 |
0.55.4 | 💥1 | 💥1 |
1 fails on Android, although might work after updating gradle
2 may require usage of jetifier
on Android and migration to CocoaPods
on iOS.
Recent Changes
1.1.1
- Update development dependencies
- Add more information to the README and INTRO file.
- Remove
const
from enum types in the typescript definition file. - Add backpressure buffer for notifications.
Documentation & Support
Interested in React Native project involving Bluetooth Low Energy? We can help you!
Learn more about Polidea's React Native services.
Learn more about Polidea's BLE services.
Documentation can be found here.
Contact us at Polidea.
Contact us at Gitter if you have any questions, feedback or want to help!
Configuration & Installation
example setup)
iOS (expo/Podfile and RN 0.60+,- Make sure your Expo project is ejected (formerly: detached). You can read how to do it here and here. (only for expo)
npm install --save react-native-ble-plx
react-native link react-native-ble-plx
- Open Xcode workspace located inside
ios
folder and add empty Swift file if you don't have at least one:- Select File/New/File...
- Choose Swift file and click Next.
- Name it however you want, select your application target and create it.
- Accept to create Objective-C bridging header.
- Update your
ios/Podfile
to contain:pod 'react-native-ble-plx', :path => '../node_modules/react-native-ble-plx' pod 'react-native-ble-plx-swift', :path => '../node_modules/react-native-ble-plx'
- Enter
ios
folder and runpod update
- Minimal supported version of iOS is 8.0
- If you want to support background mode:
- In your application target go to
Capabilities
tab and enableUses Bluetooth LE Accessories
inBackground Modes
section. - Pass
restoreStateIdentifier
andrestoreStateFunction
toBleManager
constructor.
- In your application target go to
- Starting from iOS 13 add
NSBluetoothAlwaysUsageDescription
ininfo.plist
file.
example setup)
iOS (react-native < 0.60,-
npm install --save react-native-ble-plx
-
react-native link react-native-ble-plx
-
Open Xcode project located inside
ios
folder and add empty Swift file if you don't have at least one:- Select File/New/File...
- Choose Swift file and click Next.
- Name it however you want, select your targets and create it.
- Accept to create Objective-C bridging header.
-
Minimal supported version of iOS is 8.0
-
If you want to support background mode:
- In your application target go to
Capabilities
tab and enableUses Bluetooth LE Accessories
inBackground Modes
section. - Pass
restoreStateIdentifier
andrestoreStateFunction
toBleManager
constructor.
- In your application target go to
-
Starting from iOS 13 add
NSBluetoothAlwaysUsageDescription
ininfo.plist
file.
example setup)
Android (npm install --save react-native-ble-plx
react-native link react-native-ble-plx
- In
build.gradle
ofapp
module make sure that min SDK version is at least 18:
android {
...
defaultConfig {
minSdkVersion 18
...
- In
AndroidManifest.xml
, add Bluetooth permissions and update<uses-sdk/>
:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
...
<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
<uses-permission-sdk-23 android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<!-- Add this line if your application always requires BLE. More info can be found on:
https://developer.android.com/guide/topics/connectivity/bluetooth-le.html#permissions
-->
<uses-feature android:name="android.hardware.bluetooth_le" android:required="true"/>
<uses-sdk
android:minSdkVersion="18"
...
- If you are using AndroidX, then for the time being you need to convert import statements in the Android library with jetifier. These steps apply for all react-native packages, which are during the transition period:
npm install --save-dev jetifier
- Run
jetify
script afternpm install
. You can do it by adding "postinstall" script to thepackage.json
file:... "postinstall": "npx jetify", ...
Troubleshooting
Problems with Proguard
Add this to your app/proguard-rules.pro
-dontwarn com.polidea.reactnativeble.**