Syntax

• newInstance : To create single instance of Facebook helper class.
• loginUser : To login user.
• signOut : To log out user.
• getCallbackManager : To get callback for Facebook.
• getLoginCallback : To get callback for Login.
• getKeyHash : To generate Facebook Key Hash.

Parameters

Parameter | Details | —— | —— | TAG | A String used while logging | FacebookSignInHelper | A static reference to facebook helper | CallbackManager | A callback for facebook operations | Activity | A context | PERMISSION_LOGIN | An array that contains all permission required from facebook to login.| loginCallback | A callback for facebook login |