How to implement authorization in an Android application through social networks?

Question

Android

It is necessary to make authorization in the application through twitter, vk, facebook. Please let me know if there are any libraries for this.
Or do you need to download all SDKs for three social networks and do everything manually?

Answer 1

The last time I did it with pens, I connected the SDK for each social network.
A lot of work, little buzz, especially with Twitter.
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