Unable to find any devices. IOS

Hello! Tried to use the plugin, figured how to subscribe to events, that have to be spawned while scanning via BleManagerDiscoverPeripheral. Everything went well, though, no events were dispatched. Tried to use your example project from repo, same thing. No exceptions, no logs, just no devices discovered, though through IOS settings I can see few available to connect. Have seen issue https://github.com/innoveit/react-native-ble-manager/issues/215, however it doesn’t look handy in my case.

Is there any suggestion where to explore further? Thanks in advance!

“react-native”: “0.48.3”, “react-native-ble-manager”: “^6.1.1”, tested on Iphone 7 IOS 11 & Iphone 5s IOS 10.3.3

[Sprit3Dan]

Truth is that I found this issue earlier and developed the bluetooth-service the right way as I understand. Here’s the code.

import { Observable } from 'rxjs/Rx';
import * as BleManager from 'react-native-ble-manager'
import { NativeEventEmitter, NativeModules } from 'react-native'

import { injectable } from '../';

abstract class BluetoothServiceApi {
	abstract searchDevice(services?: Array<any>, seconds?: number): Observable<any>
}

@injectable()
export class BluetoothService {
	private bluetoothReady: Promise<BluetoothServiceApi>;
	private bleManagerEmitter: NativeEventEmitter;

	private api = {
		searchDevice: this.searchDevice.bind(this),
	};

	constructor() {
		this.bleManagerEmitter = new NativeEventEmitter(NativeModules.BleManager);

		this.bluetoothReady = new Promise((res, rej) => {
		BleManager.start({ showAlerts: true, forceLegacy: true })
			.then(() => {
				res(this.api);
				console.info('bt started');
			});
		});
	}

	public get ready(): Promise<BluetoothServiceApi> {
		return this.bluetoothReady;
	}

	private searchDevice(services: Array<any> = [], seconds: number = 5): Observable<any> {
		let scanEmitter;
		
		BleManager.scan(services, seconds)
			.then(() => console.info('scan started'));
			
		this.bleManagerEmitter.addListener('BleManagerDiscoverPeripheral', (data) => {
			console.log(data);
		});
			
		return new Observable<any>(emitter => scanEmitter = emitter);
		// return Observable.fromEvent(this.bleManagerEmitter, 'BleManagerDiscoverPeripheral');
	}
}

and the usage of it.

@inject(BluetoothService) btService: BluetoothService;
  
  componentWillMount() {
    this.btService.ready.then(api =>
      api.searchDevice().subscribe(data => console.log(data))
    );
  }

Though, it didn’t help much

[Ilario17]

@Sprit3Dan how did you solve this issue?