react-native-bluetooth-status

React Native library to monitor and manage bluetooth state. Monitoring the bluetooth state works cross-plaform (iOS & Android). In addition, Android can directly enable / disable bluetooth. V2 introduced new Hooks API!

Installation

$ npm install react-native-bluetooth-status --save

On RN 0.60+ with autolinking run pod install in your ios/ folder.

RN < 0.60

$ react-native link react-native-bluetooth-status

Manual installation on older RN versions

#### iOS 1. In XCode, in the project navigator, right click `Libraries` ➜ `Add Files to [your project's name]` 2. Go to `node_modules` ➜ `react-native-bluetooth-status` and add `RNBluetoothManager.xcodeproj` 3. In XCode, in the project navigator, select your project. Add `libRNBluetoothManager.a` to your project's `Build Phases` ➜ `Link Binary With Libraries` 4. Run your project (`Cmd+R`)< #### Android 1. Open up `android/app/src/main/java/[...]/MainApplication.java` 1.1 Add `import com.solinor.bluetoothstatus.RNBluetoothManagerPackage;` to the imports at the top of the file 1.2 Add `new RNBluetoothManagerPackage()` to the list returned by the `getPackages()` method in that file Note: If you add it to the end of the list it should look something like this: ``` @Override protected List getPackages() { return Arrays.asList( new MainReactPackage(), // Note the addtional comma needed for the original last item in the list new RNBluetoothManagerPackage() // For https://github.com/solinor/react-native-bluetooth-status ); } ``` 2. Append the following lines to `android/settings.gradle`: ``` include ':react-native-bluetooth-status' project(':react-native-bluetooth-status').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-bluetooth-status/android') ``` 3. Insert the following lines inside the dependencies block in `android/app/build.gradle`: ``` compile project(':react-native-bluetooth-status') ```

Usage

Hooks API:

import { useBluetoothStatus } from 'react-native-bluetooth-status';

...

const [btStatus, isPending, setBluetooth] = useBluetoothStatus();
return (
  {!isPending && <Text>{btStatus ? 'On' : 'Off'}</Text>}
  <Button title="Toggle BT" onPress={() => setBluetooth(!btStatus)} />
)

Variable	Description
btStatus	Current Bluetooth status. Starts undefined, but updated asynchronously right away. Updated automatically if status changes.
isPending	Starts at true and after getting first Bluetooth status, is set to false. Helps to know when btStatus is not undefined anymore.
setBluetooth	Android Only Enables / disabled bluetooth. Takes boolean parameter (defaults to true) to select the operation.

Imperative API

import { BluetoothStatus } from 'react-native-bluetooth-status';

...

async getBluetoothState() {
  const isEnabled = await BluetoothStatus.state();
}

For further usage examples, see the example project using this library.

Method	Description
state	Returns a promise, which will return a boolean value, `true` if bluetooth is enabled, `false` if disabled.
addListener	Takes function parameter, which will be run when BT status changes, with the new BT on/off status (true / false).
removeListener	Removes listener.
enable	Android only Changes bluetooth state. Takes boolean parameter (defaults to true), `true` to enable, `false` to disable.
disable	Android only Disables bluetooth, same end result as calling `enable(false)`.