ZohoSDK.getInstance(this).init(scopes, showlogs);

• scopes - "aaaserver.profile.READ,zohocontacts.userphoto.READ,ZohoContacts.contactapi.READ,
  ZohoCreator.meta.CREATE,ZohoCreator.meta.READ,ZohoCreator.meta.UPDATE,
  ZohoCreator.meta.DELETE,ZohoCreator.data.CREATE,ZohoCreator.data.READ,
  ZohoCreator.data.UPDATE,ZohoCreator.data.DELETE,Stratus.stratusop.READ,
  ZohoCRM.modules.READ,ZohoCRM.users.READ"
  Note: The scope list have been updated for version 1.4 and above.
• showLogs - To show debug logs or not

ZohoSDK.getInstance(this).handleRedirection(this);

val sdk = ZohoSDK.getInstance(applicationContext)
if (!sdk.isUserSignedIn) {
   sdk.presentLoginScreen(this, object : ZohoTokenCallback {

      override fun onTokenFetchInitiated() {

      }

      override fun onTokenFetchComplete(zohoToken: ZohoToken?) {
         // This method will be called after user logged-in successfully
      }

      override fun onTokenFetchFailed(zohoErrorCodes: ZohoErrorCodes?) {
         // This method will be called if any error occurred in the login. You will receive the error code in this callback.
      }

   }, null)
} else {
   // Start intent to your first activity
}

class ZCAuthImpl(private val context: Context) : ZCOauthHelper {

    @Throws(ZCException::class)
    override suspend fun getAccessToken(): String? {
        return ZohoSDK.getInstance(context).token.token
    }

    override fun isUserSignedIn(): Boolean {
        return ZohoSDK.getInstance(context).isUserSignedIn
    }

    override fun getUserData(): Any? {
        return null
    }

    override fun getTransformedUrl(url: String): String {
        return url
    }

    override fun checkAndLogout(): Boolean {
        return ZohoSDK.getInstance(context).checkAndLogout()
    }
override fun isEnhanceTokenNeeded(scope: String): Boolean {
        return false
    }

    override fun enhanceToken(tokenHelper: ZCOauthHelper.ZCOAuthTokenHelper) {
    }
}