guidance / suggesstions needed : android location of multiple users on map - Android Q&A, Help & Troubleshooting

my app will be used by multiple users, where app will track users location in real time.
I want to map everyone's location on single map to show who else is nearby. Currently i'm thinking of getting users location and saving in DB and updating every minute or so
If there are any other ideas or if there are any readymade libraries available to achieve this would be great. thanks in advance.

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[Q] App Development: Starting Location Listeners in Activity A passing values to B

Hi guys!
Im developing an app which will locate the users position. GPS being slow I would like to start listening to the GPS listener in Activity A (once the app launches), but I will use the coords in Activity B.
Is there like a way to create a "global" listener so I can access it anywhere from the app? If thats not possible, is better off an AsyncTask or a service?
Thanks in advance!

[Q] Location-Based Service Application development

Hi,
I am a student studying in software engineering course in Malaysia. This semester I am required to develop an application for mobile device for my final year project. What I need to do is only to be able to locate the user location in a building, show the route that can be taken, and optionally download the building's map, and use the turn-by turn navigation without any internet/GPS access after that.
My main questions are;
1) How do I get a building's map? For example I wanted to have a map of my university campus, where do I get the map from? Google Map?
2) How to implement the turn-by-turn navigation without any internet/GPS? Only the graphical is enough, no need for sound support.
3) How do i obtain user's location using Wi-Fi connection instead of GPS?
Thank you and I hope any developers won't mind sharing some of the knowledge for a learning student.
I am not hoping for source codes, I just need guidance and directions on where should I look, and what I need to study.
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Moving to Q&A

[Q] find current locations continuously and automatically and match with locations

Hi i am developing an android based application "Route Tracker For Special Person".
well i am working with Google map api v2 and till now i have include map in my app and mark some places and further work i need to know this... During traveling When user reach at specific location let say user reach at location A, i have to call an event. e.g My app should find current locations continuously and automatically and match with locations that i marked ( how can it be done) and when it matched, event should be called.
Thanks And Regards
hmkn001 said:
Hi i am developing an android based application "Route Tracker For Special Person".
well i am working with Google map api v2 and till now i have include map in my app and mark some places and further work i need to know this... During traveling When user reach at specific location let say user reach at location A, i have to call an event. e.g My app should find current locations continuously and automatically and match with locations that i marked ( how can it be done) and when it matched, event should be called.
Thanks And Regards
Click to expand...
Click to collapse
maybe this will help you !
the idea is to set a radius for your markers.
Remember you can easily get your location every ( n Secondes ) [ just for testing ]
now !
- find the closest marker ( this will help you Click Here and just test if the user location is inside the Marker Radius .

Need help with updating an apk

Hey all,
There's an app I need help updating to either api 24/26 . The app which is meant to interface with the Joyetech Ocular/Ocular C, which is on Google Play,
https://play.google.com/store/apps/details?id=com.zijing.joyetech
The problem is, the devs of the app hasn't updated it since api 22, and after sending emails to the devs on multiple channels, there's no response.
Looking at the logcat of an app's activity, the Android app derives keys using the SHA1PRNG algorithm from the Crypto provider, and as of Android N, apps must start using a real key derivation function.
My issue is that:
1: I'm very mediocre at things like this. (Decompile, import into Eclipse, edit as needed, then recompile.)
2: My laptop doesn't have enough space to install Eclipse.
Would anyone with more knowledge on this subject be willing to update this apk for me?

Migrate from Google Maps to Huawei Maps

Hello, I have a problem about using Maps on Huawei phones. I found documentation and sdk for implementing maps with Map Kit, but I couldn't found any information about navigation and creating paths from one point to another. Maybe someone faced with same problem and someone knows that how can I solve this problem? Also, I found that Here maps is available in Huawei App Gallery and maybe one possible solution is creating Intent for activities that can perform navigation on phone.
dould1985 said:
Hello, I have a problem about using Maps on Huawei phones. I found documentation and sdk for implementing maps with Map Kit, but I couldn't found any information about navigation and creating paths from one point to another. Maybe someone faced with same problem and someone knows that how can I solve this problem? Also, I found that Here maps is available in Huawei App Gallery and maybe one possible solution is creating Intent for activities that can perform navigation on phone.
Click to expand...
Click to collapse
Hello, HMS Map Kit already supports route planning with Directions API. For now, it only supports walking, bicycling and driving directions. Also, it gives you shortest path.
You can get directions with Route model. It has Polyline in it. You can use these polylines to draw navigation path on map.
"https://developer.huawei.com/consumer/en/doc/development/HMSCore-References-V5/directions-walking-0000001050161494-V5"
"https://developer.huawei.com/consumer/en/doc/development/HMSCore-References-V5/directions-bicycling-0000001050163449-V5"
"https://developer.huawei.com/consumer/en/doc/development/HMSCore-References-V5/directions-driving-0000001050161496-V5"

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