Angular location services

Question

Angular location services

I'm experiencing some difficulties with the geolocation feature. It works fine when the user clicks allow, but there's an issue when using If else. If the user clicks deny, it doesn't insert into the else block. You can check out this DEMO for reference.

Component

    ngOnInit() {
       this.getUserLocation();
    }

    getUserLocation() {
       if (navigator.geolocation) {
        navigator.geolocation.getCurrentPosition(position => {
            this.lat = position.coords.latitude;
            this.lng = position.coords.longitude;
          });
    }else {
       console.log("User has not allowed location access")

    }
}

angular typescript

Answer 1

Answer №1

@shayan's suggestion provides the correct approach to achieve your desired result. I will make a slight adjustment to his method to better align with your expectations.

Consider implementing something along these lines:

navigator.geolocation.getCurrentPosition(function(){
        alert('Location accessed')
},function(){
       alert('User not allowed')
},{timeout:10000})

Answer 2

@shayan's suggestion provides the correct approach to achieve your desired result. I will make a slight adjustment to his method to better align with your expectations.

Consider implementing something along these lines:

navigator.geolocation.getCurrentPosition(function(){
        alert('Location accessed')
},function(){
       alert('User not allowed')
},{timeout:10000})

Answer 3

Answer №2

Consider giving this a try:

navigator.geolocation.getCurrentPosition(successCallback,errorCallback,{timeout:10000});

I found success with this method. How about you?

Answer 4

Consider giving this a try:

navigator.geolocation.getCurrentPosition(successCallback,errorCallback,{timeout:10000});

I found success with this method. How about you?

Answer 5

Answer №3

fetchCurrentLocation() {
    // The GeolocationCoordinates interface is used globally
    return new Observable<GeolocationCoordinates>((observer) => {
      window.navigator.geolocation.getCurrentPosition(
        (position) => {
          // The Observer's next(value) method is called by the Observable to provide data.
          observer.next(position.coords);
          // When complete() is called, the observable is marked as done and no more values can be emitted.
          observer.complete();
        },
        // If an error occurs, the observable enters an error state where no more values can be emitted.
       (err) => observer.error(err)
     );
   }).pipe(
       retry(1), // OPTIONAL
       tap(
           () => {
               // Create a notification service or log the event
               this.notificationsService.addSuccess('Got your location');
           }
           // Instead of this, use catchError which returns an observable
           // (err) => {
           //    this.notificationsService.addError('failed to get your location');
           // }
       ),
       catchError((error) => {
           // Handle the error first
          this.notificationsService.addError('failed to get your location');
          // Return a new observable as required by the catchError operator 
          // This allows us to handle errors and continue with the pipeline
          
          return throwError(error);
       })
   );
}

Answer 6

fetchCurrentLocation() {
    // The GeolocationCoordinates interface is used globally
    return new Observable<GeolocationCoordinates>((observer) => {
      window.navigator.geolocation.getCurrentPosition(
        (position) => {
          // The Observer's next(value) method is called by the Observable to provide data.
          observer.next(position.coords);
          // When complete() is called, the observable is marked as done and no more values can be emitted.
          observer.complete();
        },
        // If an error occurs, the observable enters an error state where no more values can be emitted.
       (err) => observer.error(err)
     );
   }).pipe(
       retry(1), // OPTIONAL
       tap(
           () => {
               // Create a notification service or log the event
               this.notificationsService.addSuccess('Got your location');
           }
           // Instead of this, use catchError which returns an observable
           // (err) => {
           //    this.notificationsService.addError('failed to get your location');
           // }
       ),
       catchError((error) => {
           // Handle the error first
          this.notificationsService.addError('failed to get your location');
          // Return a new observable as required by the catchError operator 
          // This allows us to handle errors and continue with the pipeline
          
          return throwError(error);
       })
   );
}

Answer 7

Answer №4

If you're utilizing the geolocation API within Angular, a handy library to check out is available here https://github.com/taiga-family/ng-web-apis/tree/main/libs/geolocation

To handle errors from the geolocation$ observable (from the library), you can use RxJs

Additionally, the library includes the GEOLOCATION_SUPPORT token, which will return false if the user's browser doesn't support the geolocation API

Answer 8

If you're utilizing the geolocation API within Angular, a handy library to check out is available here https://github.com/taiga-family/ng-web-apis/tree/main/libs/geolocation

To handle errors from the geolocation$ observable (from the library), you can use RxJs

Additionally, the library includes the GEOLOCATION_SUPPORT token, which will return false if the user's browser doesn't support the geolocation API

Angular location services

Answer №1

Answer №2

Answer №3

Answer №4

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