Custom Tab Activity

<activity
	android:name="com.facebook.CustomTabActivity"
	android:exported="true">
	<intent-filter>
		<action android:name="android.intent.action.VIEW" />
		<category android:name="android.intent.category.DEFAULT" />
		<category android:name="android.intent.category.BROWSABLE" />
		<data android:scheme="@string/fb_login_protocol_scheme" />
	</intent-filter>
</activity>

@Override
protected void onActivityResult(final int requestCode,
final int resultCode, final Intent data){
	super.onActivityResult(requestCode, resultCode, data);

	callbackManager.onActivityResult(requestCode, resultCode, data);
	...
}

if (AccessToken.getCurrentAccessToken() != null){
	...
}
else{
	AccountKit.getCurrentAccount(new AccountKitCallback<Account>(){
		...
	})
}

if (AccessToken.getCurrentAccessToken() != null){
	Profile profile = Profile.getCurrentProfile();
}

if (AccessToken.getCurrentAccessToken() != null){
	Profile currentProfile = Profile.getCurrentProfile();
	if (currentProfile != null){
		displayProfileInfo(currentProfile);
	} else {
		Profile.fetchProfileForCurrentAccessToken();
	}
}