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I'm currently developing an application which should share the location of multiple clients live. It is important that the locations are always up to date. I would like to ask what's the best way of doing so with keeping performance in mind. I currently only have a web services in mind which handles the locations and the client fetches the data every X seconds from the server or live updates with firebase.
I'm strongly recommend to use synchronized DB, such as coutchDB/PouchDB or similar, in that why the DB framework will be responsible to sync all clients without the need to handle each client separately.
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Is there a away to get data from other apps like, google contacts, calendar,etc in our app.
E.g The way google synchronizes with their apps.
You can access data from other apps using Content Providers. You can learn more about that from the documentation.
You can either build an ecosystem by creating multiple apps that communicate with each other via content providers, or you can access data from existing apps if they provide content providers.
You can learn how to access the calendar by reading the documentation.
So the main takeaway is that you should read about Content providers and also checkout some related tutorials.
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I am new to Android programming and I want to make an online marketing app, but I have no website as web service for send and receive data in database between server and client. What can I use instead of a website?
Can I use any free API for it? I searched API and checkout below links:
https://moz.com/blog/apis-for-datadriven-marketers
https://www.programmableweb.com/category/marketing/api
https://firebase.google.com/docs/storage/android/start
Maybe you can use Firebase for data store and retrive in realtime: and it's free
https://console.firebase.google.com/u/0/?pli=1
You can create your own database and retrive and store date there.
https://github.com/firebase/quickstart-android
for referance its github example
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I want to create a server that can be between among a few thousand people and can play there 1v1. like quiz up app
I've read Android documents but it does not seem to explain it.
Building Apps with Connectivity & the Cloud
I'm so confused about the servers and all kind of this
need Help!
i will mark this correct for those who can answer thanks
John
For creating server you have to use any backend language like PHP will be very comfortable for beginners.
You can refer php MySQL connection with Android using volley or any Http connection in Android.
You can refer to www.androidhive.com and search for above for better understanding.
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I am in the process of developing an android application for live score and statistics. Assume that I have an XML feed which updates every second and the file size is around 400KB. But I need only specific content from the XML file. Polling the XML file at regular interval and parsing it seems to be time consuming task.
What is the best method to implement a live score application?
Will it be a good idea to implement a web service that polls only the required part of the XML feed and respond the client with the parsed data?
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I need to create an application that will show me on a map to all users who have installed my app within x distance.
It wondered if I need to save the coordinates of each user periodically in a database and read the position or is there another option
Tracking the user's location in a database will likely be your easiest option. It will also scale well. If you are only tracking a couple users, you could use another simpler data storage mechanism like an XML file, a text file, or even some sort of Application Level Variable.
I'm sure that you have done some research on how best to track your users, but this is a pretty good starting point, if you don't have one already. They are storing each location in a local database on the phone, so I'm sure that you could very easily modify it to send that same location to a web service or something.