react-native-classicbluetooth-sdk v1.0.5

React Native Classic Bluetooth SDK

This SDK provides functionalities to connect with classic Bluetooth devices and handle permissions required for Bluetooth and location access.

Installation

To install the SDK, run:

npm install react-native-classicbluetooth-sdk

Permissions

Add the required permissions in AndroidManifest.xml:

<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
<uses-permission android:name="android.permission.BLUETOOTH_SCAN" />
<uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
<uses-permission android:name="android.permission.BLUETOOTH_ADVERTISE" />
<uses-feature android:name="android.hardware.bluetooth" android:required="true"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>

SDK Functions

Bluetooth Functions (bluetooth.ts)

Permission Functions (permissions.ts)

Usage in React Native

Initializing Bluetooth and Permissions

import { 
    enableBluetooth, 
    isBluetoothEnabled, 
    requestAllPermissions,
    checkAllPermissions, 
    startDiscovery, 
    requestLocationService
} from 'react-native-classicbluetooth-sdk';

const App = () =>{ 
    const [permissionStatus,setPermissionStatus] = useState()
    const [bluetoothEnabled,setBluetoothEnabled] = useState()
    
    useEffect(()=>{
        checkPermission()
    },[])

    const checkPermission = async () => {
        const permissionStatus = await checkAllPermissions()
        setPermissionStatus(permissionStatus)

        if(!permissionStatus){
           const isPermissionGranted = await requestAllPermissions()
           setPermissionStatus(isPermissionGranted)
        }
    }

    useEffect(() => {
        if (permissionStatus) {
            checkBluetoothStatus()      
        }
    }, [permissionStatus])

    useEffect(() => {
        if (bluetoothEnabled) {
            getBluetoothDevice()
        } else{
            enableBluetooth()
        }
    }, [bluetoothEnabled])

    const checkBluetoothStatus = async () => {
        const check = await isBluetoothEnabled()
        setBluetoothEnabled(check)
    }

    const getBluetoothDevice = async () => {
        const isLocationEnabled = await requestLocationService()
        if (!isLocationEnabled) {
            return
        }
        const device = await startDiscovery();
    }
}

Connecting and Communicating with Devices

import { 
    read,
    write,
    connectToDevice
} from 'react-native-classicbluetooth-sdk';

const connectToDevice = async (deviceId) => {
  try {
    await connectDevice(deviceId);
    console.log(`Connected to: ${deviceId}`);
  } catch (error) {
    console.error("Failed to connect", error);
  }
};

const sendDataToDevice = async (device, data) => {
  try {
    await write(device, data);
    console.log("Data sent successfully");
  } catch (error) {
    console.error("Failed to send data:", error);
  }
};

const readDataFromDevice = async (device) => {
  try {
    const data = await read(device);
    console.log("Received data:", data);
  } catch (error) {
    console.error("Failed to read data:", error);
  }
};