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I am trying to create an app that has an activity screen that allows a user to see random users who have downloaded the app as well. I failed short finding information/tutorials related to the topic. I understand there will be manipulation of profile data via php/mysql. An example of what the functionality I am looking for would be instagram's search page that shows a grid of random profiles.
Try something like the Firebase Realtime Database.
In case you don't know it, Firebase Database is an online database it handles most of the work for you. Simply make your users enter their information(Name,Profile picture,Age etc...) and then retreive the user data. Check out the Firebase database documentation for more info.
There are also other alternatives.
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I can link a firebase account to an android studio, but I want to be able to change that firebase account from the application.
**How do I do that? **
If you already used firebase in your application. Now you want to change this account. It's only possible to create a new firebase new user account.
If you want to use the same account with multiple user access that times you give firebase access to the rest of the users. This way you manage the firebase account with multiple user access.
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I am new to Android and searched for this topic on the internet but still not sure which would be the best choice. I am writing an app that shows users details about a movie. I want to add to this application a database that stores for each user their favorite movies, and movies they want to watch in the future. What would be a good choice for adding a database? Would a client-server architecture fit this app? (writing it in Java)
If you decide to implement a local database, I would strongly suggest using Room persistence library. However, if the data you wish to save is fairly simple (let's say it is an object with 2-3 properties), you could consider saving them to Shared preferences as json strings.
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Idea of app: it is something like Google Photos.
App which listens when user take a photo with his camera app, and send this photo to server.
How can we know when user take a photo? I think that it is something like Listener "onUserTookPhotoListener", isn't it?
Infinity cycle checking gallery on background?
You can use FileObserver. It works for files and directories. You will need to implement service though.
Please take a look at questions and answers that can be helpful:
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Went I read rss from diffrent sources such as bbc, voa,... How can i plan they 'by source', 'by time',... Should I use database ? I think it make my app slowly.
Not using a database would make your app slower. Without a database every time you restart the app it needs to fetch the rss feeds from the servers. It's sensible to store the data offline and update it with the new items on startup / with a button.
Think about additional operations which need a database: labeling, starring, saving for later, etc.
This provides an additional benefit: you can store the news offline so the user can read them without an active connection.
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I just finished the development of my app. Its a chat app. Now i want to add my app icon in contact list of phone like Facebook, Google and Whatsapp icon is there. I want exactly like this:
Means if anybody from my contacts is using my app, icon of my app should be visible with the name in my contacts list. If anybody has any idea, please help me to do this.
thanks in advance :)
I believe for applications to show up in Contacts like the above example, they must also be added in the 'Accounts' section in the settings menu on Android.
You can find more about how exactly to do that here:
http://developer.android.com/reference/android/accounts/package-summary.html