// 1.Import dependency
import io.trtc.tuikit.atomicxcore.api.CompletionHandler;
import io.trtc.tuikit.atomicxcore.api.login.LoginStore;

// 2.Call the login API. It is recommended to call TUILogin after completing your own login service.
private static final String TAG = "LoginStore";


LoginStore.shared.login(
        context,
        1400000001,     // Please replace with the SDKAppID from the service activation console
        "denny",        // Please replace with your UserID
        "xxxxxxxxxxx",  // You can generate a UserSig in the console and fill it in here
        new CompletionHandler() {
            @Override
            public void onSuccess() {
                Log.i(TAG, "LoginStore login success");
            }


            @Override
            public void onFailure(int code, String desc) {
                Log.e(TAG, "LoginStore login failed, " + code + " errorMessage:" + desc);
            }
        }
);


import io.trtc.tuikit.atomicxcore.api.login.LoginListener;
import io.trtc.tuikit.atomicxcore.api.login.LoginStore;

public class YourLoginService {

    // Instantiate listener
    private final LoginListener loginListener = new LoginListener() {
        // Callback for user being kicked offline
        @Override
        public void onKickedOffline() {
            // Handle: Prompt user in UI, then re-login
        }

        // Callback for user signature expired
        @Override
        public void onLoginExpired() {     
            // Handle: If the user's backend session is valid, request a new userSig and call LoginStore.shared.login to renew the session
        }
    };

    // Subscribe to login state callbacks
    public void subscribeLoginStatus() {
        LoginStore.shared.addLoginListener(loginListener);
    }

    // Unsubscribe from login state callbacks
    public void unsubscribeLoginStatus() {
        LoginStore.shared.removeLoginListener(loginListener);
    }
}