From what I know, the Google API Geofence should automatically retrieve the location of the device based on some parameters (e.g. the distance from the area). However, I've been trying to implement the code provided here and run it on the virtual machine for several minutes, but the current location of the device is never updated.
So, it is not clear to me if the Geofence automatically and periodically retrieves the location of the device, or simply uses the last known location.
Related
Let's say I'm developing an app (Android, iOS or both), and 2 users (UserX & UserY) have downloaded my app with giving it all permissions needed,
If UserX opened the app telling it "hey app, I'm currently close to UserY's mobile" (like in the same room or something), where UserY's mobile could be just laying down doing nothing,
Question is, can the app make sure UserX's claims are valid or not? .. if yes, then is it valid for both platforms (Android & iOS)?
You can create Geofence for both user x and user y and based on the radius of geofence you can generate an alert if users cross into each others geofences.
Geofencing combines awareness of the user's current location with awareness of the user's proximity to locations that may be of interest. To mark a location of interest, you specify its latitude and longitude. To adjust the proximity for the location, you add a radius. The latitude, longitude, and radius define a geofence, creating a circular area, or fence, around the location of interest.
You can have multiple active geofences, with a limit of 100 per app, per device user. For each geofence, you can ask Location Services to send you entrance and exit events.
Here are more info on the same - https://developer.android.com/training/location/geofencing
I'm developing an IOS / Android gps based application that needs to update location always (or after significant location change). Similar to Life360 family locator app. This app doesn't need to start at all and yet when you open the app it has all your location data captured for a week. If I'm checking on my kids location and they don't have their phone actively running the app, I still get the real-time location and their gps history.
How is this accomplished? It seems that the app is logging gps data, not only when in foreground and background but when not running at all. Is there a special run-mode these apps use?
thanks all!
Mike
I can only speak for iOS.
On iOS you can register for significant location changes, and your app will get notified in the background when a location change event occurs (and even get launched in the background if it had been terminated). You can then request background time and transmit your updated location information to your server.
I want to get local notification on my android phone. For example- In starting, user might choose the range like 1km, 2km or 3km as per his own wish and saves this range with his current location(latitude and longitude). After some time user migrates from one location to another means he can go anywhere apart from his current location, his location gets changed. Now in this situation, when he returns towards his last saved location, notification should come on his phone because he is near from his last current location that he saved before when he started to go somewhere. This notification should come when he enters within the specified range by user from his prior saved current location. Answer will be appriciated !!!
This is a feature called GeoFencing.
Check the link for sample:
https://github.com/googlesamples/android-Geofencing
Check google docs and guides for more info:
https://developers.google.com/android/reference/com/google/android/gms/location/Geofence
https://developer.android.com/training/location/geofencing.html
I am developing an Android applicaiton that tracks the user through GPS. I am able to get the location of the user when the location is changed by implementing the "onLocationChanged()" in every specified time and distance. But the problem is, i need to get the user location after every specified time even when the locationof the user is not changed. How can i accomplish this. Can you help me ?
i am currently developing an app that requires location from the start. I have a method that checks if location updates are up, but even when GPS is turned up I cant ensure a Location Update when the app starts. How can I ensure a fresh location update when my app starts?
i am currently developing an app that requires location from the start.
That is a design flaw in your app. Please redesign your app to take into account that:
the user may have GPS disabled, or
the user may not have used GPS recently, so it will take some time to acquire a fix, or
the user may not be in a location where GPS signals are available (e.g., inside a large building)
How can I ensure a fresh location update when my app starts?
You can't.