using foreground services pedometer value is blank in react native - react-native

Question

I am getting the pedometer value when I first start the app. But, after I close it and restart the app, the value is blank and there is no exception/error. Please review and advise. if you find any other working code please help me with that .I was using the https://github.com/voximplant/react-native-foreground-service for foreground services and expo pedometer for the pedometer. while using the pedometer only it works fine
export default class HomeScreen extends React.Component {
state = {
pastStepCount: 0,
};
componentDidMount() {
this._subscribe();
}
componentWillUnmount(){
this._unsubscribe();
}
_subscribe = () => {
this._subscription = Pedometer.watchStepCount(result => {
this.setState({
currentStepCount: result.steps,
});
});
try {
this.setState();
console.log("steps counting");
} catch (error) {
Alert.alert('error')
}
};
_unsubscribe = () => {
this._subscription && this._subscription.remove();
this._subscription = null;
};
//start
foregroundService = VIForegroundService.getInstance();
state = {
isRunningService: false,
};
componentDidMount(){
this.startService();
}
componentWillUnmount(){
this.stopService();
}
async startService() {
if (this.state.isRunningService) return;
if (Platform.Version >= 26) {
const channelConfig = {
id: 'ForegroundServiceChannel',
name: 'Notification Channel',
description: 'Notification Channel for Foreground Service',
enableVibration: false,
importance: 2
};
await this.foregroundService.createNotificationChannel(channelConfig);
}
const notificationConfig = {
channelId: 'ForegroundServiceChannel',
id: 3456,
title: 'Foreground Service',
text: 'Foreground service is running',
icon: 'ic_notification',
priority: 0,
};
try {
this.subscribeForegroundButtonPressedEvent();
await this.foregroundService.startService(notificationConfig);
this.setState({isRunningService: true});
} catch (error) {
this.foregroundService.off();
}
}
async stopService() {
if (!this.state.isRunningService) return;
this.setState({isRunningService: false});
await this.foregroundService.stopService();
this.foregroundService.off();
}
subscribeForegroundButtonPressedEvent() {
this.foregroundService.on('VIForegroundServiceButtonPressed', async () => {
await this.stopService();
});
}
//ends