Develop Reference

Is there a way to find and change Facebook account's privacy settings programmatically?

I want to know if it is possible to find and manage privacy settings for a Facebook account programmatically. Like Jumbo Privacy app is doing.
I'm trying to find out if there is a way possible to change the privacy settings like timeline and tagging and a post's privacy settings, and friend-list's privacy settings (who can view my friend-list), programmatically using android or swift.
I've also seen an app named Jumbo Privacy app which is able to change privacy settings of an account. I just want to know if there is a pathway given by Facebook to do so or not.

No, there is no way to do this via any of the official APIs provided by Facebook.
If you got any app or service doing this, then they presumably must be doing it in some way that is explicitly not allowed, such as interacting with the web UI directly, or mimicking internal API calls, that were not meant for public consumption.

Same account, multiple applications

I am developing an SDK which multiple applications will use. This SDK should login to the user's account and will provide the application with server interaction works. My problem is that I want to share this user's account between these applications. So there should be a mechanism in which applications will first look up the account if it exists, they will use it, if not, they will create it. But I am having technical challenges.
I looked up android's custom accounts so that the account credentials could be stored there. But I am not sure if it is possible there. First, is it possible to see if an account under a certain type exists? Second, is it possible for an application to use an account which another application created? For example, google games is doing exactly this functionality. Any game can login with user's google game account. But I need to do this without installing a third-party service on user's device.
Generally, if you have anything helpful to solve this situation, it is much appreciated.

If you looking for a solution on the device you can use a content provider to share data between the two apps.

After digging deep in the explained situation, I got my answer
First, yes it is possible to see if there exist an account under an specific name. This name can be different from the application's URI.
Second, it is possible to use an account which another application has been created.
So in the SDK, I can first lookup a contracted account name which there will be an stored token. If it exists, the SDK will store it in the shared preferences. If it does not exist, the SDK will create the token using the user's credentials. This way, other applications can use this account and if the application which created the account has been uninstalled, the next application which runs, will recreate the token in accounts from its shared preferences.

Add SIP Account Programmatically

In my app, SIP registration was successfully done,but when i am checking in my phone weather account is added or not, account is added but when i am clicking on that then popup appears with two option:
1.Close Profile
2.Cancel
So there may be account not successfully added.So please suggest me to solve this issue.Thank you.

Have a look at this post and this post if you're okay w/launching the native sip-settings dialog and then reading the settings out afterwards. You could also do as another user suggested and use a service.
See the official Android SIP API for the latest, in case such an option has become available.

Android sync adapter with appengine Google user accounts

I am implementing a sync adapter for my app to sync with an appengine backend. On appengine I am using the built in User api for authentication. There is a post HERE that tells how to do it, however the app is listed under the gmail account. Ideally my app would be listed in the accounts. I don't want to ask the user for username and password, just use the existing google account for authentication. Has anyone done this before??
Update:
I've been working on this and it looks like I could implement the AuthenticationService and store the users account name and leave the password as an empty string. In the getAuthToken() methods I should be able to simple return the google auth token. Will post once I get further along...

Perhaps you have misunderstood the Android account system. When you go to Settings -> Accounts & Sync and add a new account what you see then is a list of account types. Often there is a relationship between account types and apps, for example Facebook accounts are used together with Facebook. Normally you would add a new account type if you have a different backend system for handling authentication etc.
If I understand you correctly, you use Google accounts but want it to appear as your own account type. That sounds wrong to me. You'll end up reimplementing the Google account handling, with little value. I believe it is simpler for users if you simply piggyback on what Google provides you with. Your app / service / content provider can be seen when clicking on the account. For example, after installing "Tasks" by "Team Task" (disclaimer: I'm not affiliated with that company) they add "Sync Tasks" to the list of data & sync options.
But if you really want to create your own account type, follow the sample Sample Sync Adapter. Look for the Authenticator code and related resources (e.g., manifest, activity layout, etc.).

This is indeed possible and I have implemented this with success but be warned it is a bit of a headache.
There is an excellent tutorial available called writing-an-android-sync-provider-part-1
... don't forget to check the follow up in part 2
Beyond this there is also an example in the Android SDK samples called SampleSyncAdapter which was invaluable in my development.
With a little hard work and a lot of coffee you should be able to get this working ;)

Modify the Facebook account or privacy settings via an Android App

I am developping an Android application that uses a Facebook component. It would be something to simplify the management of the Facebook privacy settings with the user only having to push 2 or 3 buttons to apply a whole set of privacy parameters to his/her account.
For example, by pushing the button "paranoid", my settings change as:
default privacy for new wall posts = only me
secure browsing ON
...
And by pushing "free givaway":
secure browsing OFF
default privacy for new wall posts = everyone
...
Just an example.
I'm just beginning, so I had a look at the Facebook SDK for android, implemented the few examples like the Hackbook, etc.
But I'm still wondering how to manage privacy settings. I understand it would be a security concern to let an app manage that kind of thing, but why not?
Since I couldn't find a clear answer inside the bowels of internet, my questions are:
Is it doable? Or even partially?
If not, why? Will it be possible in the future?
If yes, how? What part of the API should I use?
Thanks.

This is not doable via the graph API because managing settings isn't available to write/update. I am almost positive this will never be available via the API. The Facebook native app may or will allow this but Facebook itself makes that app and doesn't use their own api for their app.
If you really wanted to do this, you could break Facebook's terms of service and do this via scraping Facebook's desktop site.

https://developers.facebook.com/docs/reference/api/post/
From Above link : The value field may specify one of the following strings: EVERYONE, ALL_FRIENDS, NETWORKS_FRIENDS, FRIENDS_OF_FRIENDS, CUSTOM