Is there an easy way to use oAuth2 without an AccountManager?

Question

I'd like to use a web service in my app which uses oAuth2. The official Android docs suggest I use AccountManager for this, but it also states that third party apps aren't able to use the ACCOUNT_MANAGER permission. When adding the permission to my manifest:

android.permission.ACCOUNT_MANAGER

I get the following error: Permission is only granted to system apps

So how do I actually work with oAuth if I can't use AccountManager?

Answer 1

These are the pre-Marshmallow permissions you would need to act as a client of AccountManager .

<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.MANAGE_ACCOUNTS" />
<uses-permission android:name="android.permission.USE_CREDENTIALS" />
<uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" />

You can find out which calls need which permissions by looking at the AccountManager documentation .

ACCOUNT_MANAGER permission is for the service that responds to your app's requests. That gives it ability to access authenticators directly.