Database Info

[Q] How do I allow only one app to access data connection?

As the title says: How do I allow only one app which I select to access the data connection?
To clarify, I want all apps to have permission to access the data connection, just not at the same time. (I want only the app I'm using to access the internet at that time.)

Disable background data in settings and use Droidwall (search in market)
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I'm not rooted, so I can't use Droidwall. And, apps seem to access the internet even when background data is disabled

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These are the incentives I tired my phone for, Droidwall and other things
Sent from my Galaxy S Infinity on xda free

You have to root it if you wanna block anything. Then Droidwall or LBE.
Wrong section btw.
via XDApp

[Q] App Firewall - provide fake authorized access data?

Hi guys,
I have an idea against access-hungry apps on Android, since Android is so open, why don't we make an access emulation layer, if an trivial app asks for SMS and Contacts access, grant it, but you can feed fake data to it whatever you want, sort like a firewall to malicious apps.
This would involde several API hooks, is this idea plausible?
There is already something similar on iOS Cydia: Protect My Privacy

Not exactly what you invision but check out LBE Privacy Guard or PDroid Privacy Protect in Play Store. They both make fake response to privacy requests from apps such as Phone ID, Contacts, etc...

[APP][2.1+] Root Firewall - an Internet firewall for rooted devices

This is the best choice to ad-blocking, prevent data over-billing, save battery life, as well as protect your privacy
Feature:
☆ Block Internet access for any apps
☆ Separate 3G and WiFi data
☆ One-click widget enabled
☆ Test blocked app in a touch
Download
https://play.google.com/store/apps/details?id=com.rootuninstaller.firewall
Requirements
☆ Rooted devices
More details
☆ Block Internet access for any apps:
One can select to block a selected application or applications, application running as root. Since it blocks Internet access per application ID (UID in regular Linux system), several applications may be assigned the same ID, you should block all of them or nothing.
☆ Separate 3G and WiFi data
For each application, you can select to block Internet access via either 3G or WiFi channel. It’ s extremely helpful if you don’t have an unlimited data plan. It saves you from over-billing because of background application accessing Internet such as Google+, Google Play or Amazon Music.
☆ One-click widget enabled
One-click widget is the easiest way to toggle blocking status. It’s useful when you don’t want to use data connection and occasionally turn it on for a while.
☆ Test blocked app in a touch
Once you block an app, tap on it to see if the application can access to Internet or not.

Very nice.
Could you improve your app with some of LBE functions? LBE firewall is not working on JB S2.
https://play.google.com/store/apps/d...ml0eS5saXRlIl0.
Are there other alternatives that block I/O of unwanted apps?
Malware/spyware?
I just found out about PlaceRaider, an app that spyes on your surrounding by taking pictures and sending them to higher instances.
Are there any intresting topics regarding this? Or do most users don't take notice?

[Completed] Is there a way to block apps from accessing internet in Lollipop?

I did some research on internet and most of the articles related to this topic are either outdated or suggests using some kind of another app.
I want to block internet access to apps I've installed without installing any other app or firewall. I was wondering whether there are any inbuilt settings in Lollipop which has this feature?
Basically I am worried that apps like Clean Master, etc. would be snooping around my msgs, contacts lists, pics and sending them to their servers.

Hi,
Thanks for using XDA Assist.
No, there's no built-in feature in Lollipop to block Internet access. That's not a priority for Google
However I do recommend you to use AFWall+ (root required) or NetGuard.

How to block an app from accessing the network while it's in background? (Root solution is accepted)

Hello.
Some apps on my phone constantly sending requests to their servers, but I need that apps only when I open them.
I want to block the apps from accessing the network while they're in background.
How can I do that? Maybe there are some XPosed/Magisk modules that will allow me do to that?

May depend on the version and skin of Android you are using, but in general there should be the "Use background data" switch in the properties of the corresponding app (go to app icon, long-press, select Info or Properties, then "Data usage" and there is the switch for background data).