geofencing | 基于java的一些地理围栏算法实现
kandi X-RAY | geofencing Summary
kandi X-RAY | geofencing Summary
基于java的一些地理围栏算法实现
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Top functions reviewed by kandi - BETA
- Checks if point is in polygon
- Determine if a point is inside the polygon
geofencing Key Features
geofencing Examples and Code Snippets
Community Discussions
Trending Discussions on geofencing
QUESTION
I'm trying accessing the CoWIN API from an Express server that is deployed on Heroku - US region (I am a free user and they only provide access to US & EU regions in the free tier). The issue is that the API is deployed on CloudFront and is geofenced i.e., only accessible from an Indian IP. I have tried using a npm package that uses proxy but that requires my browser to be always connected to my server (not ideal). Is there a workaround (preferably free) that allows me to mock my server's IP or proxy or anything that bypasses this geofencing?
...ANSWER
Answered 2021-May-25 at 11:12I had faced this same issue while DevOpsifying a vaccine notifier application using Express & Telegram API.
Since Heroku free tier is only available in US & EU regions, I first switched to a Ubuntu Droplet on Digital Ocean (I chose the Bangalore Data Center) but this didn't work (using free credits). I am not sure why the calls to the API were blocked despite being an Indian IP.
Finally, using AWS Free Tier creating an EC2 Instance in ap-south-1 Mumbai region WORKED!
This is a simple workaround that worked for me, I would suggest you try this first. Other workarounds are complicated.
QUESTION
I am using location to implement geofencing functionality (limiting app usage to one country) In first activity in application I am using FusedLocationProviderClient to get location like this:
Init part
...ANSWER
Answered 2021-May-21 at 07:42Instead of getting the last known location, you can get location updates in specific intervals. Here is the code.
Declare these fused location provider class and location callback class
QUESTION
I have defined a BroacastReceiver according to the Geofencing docs in order to receive ENTRY & EXIT updates when the user interacts with a geofence. My issue is that the app is going to be used on the road so, when a user drives and enters a geofence I'm getting notified about it and the same happens when he exits it. However, when the exit event is received I need to remove the triggered geofence(s) from both the Client & the Google Maps map. Both of those exist in my MapsActivity (which is where I set up the receiver & event notification process based on the documentation) so I'd like to call the removeGeofences(...) method of my activity from the receiver. I looked at a TON of posts regarding this matter but none seems to cover the Geofencing use case. I've tried declaring the receiver dynamically through code instead of statically through the manifest but in that case, I'd need intent filters which I can't find for Geofencing. Any ideas on how to achieve this?
BroadcastReceiver:
...ANSWER
Answered 2021-May-20 at 23:23You can use SharesPreference to notify triggered geoFenceId to MainActivity.
QUESTION
Should I run consul slaves alongside nomad slaves or inside them? The later might not make sense at all but I'm asking it just in case.
I brought my own nomad cluster up with consul slaves running alongside nomad slaves (inside worker nodes), my deployable artifacts are docker containers (java spring applications). The issue with my current setup is that my applications can't access consul slaves (to read configurations) (none of 0.0.0.0, localhost, worker node ip worked)
Lets say my service exposes 8080, I configured docker part (in hcl file) to use bridge as network mode. Nomad maps 8080 to 43210. Everything is fine until my service tries to reach the consul slave to read configuration. Ideally giving nomad worker node IP as consul host to Spring should suffice. But for some reason it's not.
I'm using latest version of nomad.
I configured my nomad slaves like https://github.com/bmd007/statefull-geofencing-faas/blob/master/infrastructure/nomad/client1.hcl
And the link below shows how I configured/ran my consul slave: https://github.com/bmd007/statefull-geofencing-faas/blob/master/infrastructure/server2.yml
Note: if I use static port mapping and host as the network mode for docker (in nomad) I'll be fine but then I can't deploy more than one instance of each application in each worker node (due to port conflic)
...ANSWER
Answered 2021-Jan-05 at 18:28Nomad jobs listen on a specific host/port pair.
You might want to ssh into the server and run docker ps to see what host/port pair the job is listening on.
QUESTION
I got a bit stuck debugging a yocto build problem. I encountered this while updating from yocto warrior (2.7) to yocto dunfell (3.1) The build fails during the building of the rootfs, all steps before seem to work:
...ANSWER
Answered 2021-Feb-17 at 07:55I found it out myself (interesting how asking questions helps you thinking...):
The issue was in the systemd recipe itself and related to the systemd-compat-units recipe. I was able to fix it with this in my layer's recipes-core/systemd/systemd_%.bbappend:
QUESTION
class AGResults: Codable {
let geoFencing: [ActiveGeoFencingArray]
enum CodingKeys: String, CodingKey {
case geoFencing = "geo_fencing"
}
init(geoFencing: [ActiveGeoFencingArray]) {
self.geoFencing = geoFencing
}}
ANSWER
Answered 2021-Feb-09 at 15:32A typealias is just a shorthand. It doesn't actually do anything other than let you use the new alias in place of whatever it is defined as.
A class is a definition of a custom object type. You have to instantiate instances of a class in order to use it.
QUESTION
I'm working on an app with GEOfencing API. I have created a geofence and whenever a user leaves already specified geofence, broadcast receiver is triggered and I can successfully display a log message. However when my application is in the background, onReceive method of Broadcast Receiver is not triggered, even though Geofencing is working, my onReceive method will be triggered only when I open the app in foreground. How can this be achieved in the background?
...ANSWER
Answered 2021-Feb-07 at 17:10You can use WorkManager to schedule tasks.
WorkManager is an API that makes it easy to schedule deferrable, asynchronous tasks that are expected to run even if the app exits or the device restarts. The WorkManager API is a suitable and recommended replacement for all previous Android background scheduling APIs, including FirebaseJobDispatcher, GcmNetworkManager, and Job Scheduler.
QUESTION
I have a broadcast receiver for geofences. The exact same code works in another app where I have a whole Google Map in a Activity. In the new App I want the Google Map (fragment) as a part with some other buttons and text in one activity.
When I add this to Manifest.xml (see below), the app opens and at that moment when I get a Notification (I really get the notification I want) the app crashes.
...ANSWER
Answered 2021-Jan-06 at 14:16From the logs: calling
HauptActivity.changeMeldungGefahr(HauptActivity.java:221) leads to a null pointer.
You should fix the Nullpointer within changeMeldungGefahr().
QUESTION
I'm trying to implement Geofencing into an app I'm working on. currently, I'm unable to pass the
desired output to the console because didExitRegion is never called.
What might be the cause of this and how may I go about solving it?
...ANSWER
Answered 2020-Dec-12 at 23:41The reason didExitRegion is never called is that you are not setting the CLLocationManager delegate.
In MapView you are creating an instance of CLLocationManager and then calling .startMonitoring on this instance. But you never set the delegate on this instance.
True, you are setting the delegate on the instance you created in your MapAppDelegate, but that is not the instance on which you are calling .startMonitoring.
You should refactor your code in such a way that you only create a single instance of CLLocationManager, and be sure to set the delegate on that instance.
QUESTION
I have a GEOJSON (I could convert it into Shapefile or another georeferenced file) with many points (a few hundreds) and I want to create geofences on all of them. How do I do this? I have the whole code to get a geofence of one point but how do I create geofences on many points?
When clicking long on the screen, a marker will be added which gets automatically a geofence
...ANSWER
Answered 2020-Nov-27 at 15:22I found an easy solution for anyone who will have this problem: We need to create a list of all the coordinates. So at first we need to get the coordinates from the geojson file. In the followed solution I had a KML file but at the end it gets the same result.
- I created a method which reads a txt file (you have to convert geojson or kml into .txt first and then copy it into src/main/res/raw. In my case I have "monitoring.txt" So dont forget to change the name into your filename.) In the first part it reads the .txt and saves it into a String. In the scond part it reads from it that String that is in between coordinates> and
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Vulnerabilities
No vulnerabilities reported
Install geofencing
You can use geofencing like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the geofencing component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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