facebook登录成功后启动新活动

Question

我一直试图从一个成功的登录尝试开始一个新的活动与facebook集成，然而，当登录按钮按下后，登录pin，它返回相同的活动，登录按钮是打开的。

我已经有了一个转移到下一个活动的意图，但是它似乎没有任何响应登录成功。

import android.content.Intent;
import android.support.v4.app.FragmentActivity;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;
import android.util.Log;

import com.facebook.AccessToken;
import com.facebook.CallbackManager;
import com.facebook.FacebookCallback;
import com.facebook.FacebookException;
import com.facebook.FacebookSdk;
import com.facebook.GraphResponse;
import com.facebook.login.Login;
import com.facebook.login.LoginManager;
import com.facebook.login.LoginResult;
import com.facebook.login.widget.LoginButton;
import android.widget.Toast;
import com.facebook.GraphRequest;
import android.widget.ImageView;
import android.widget.TextView;
import com.bumptech.glide.Glide;
import org.json.JSONObject;


    public class userlogin extends FragmentActivity {

        LoginButton loginButton; //The Facebook login button
        TextView loginstatus;
        CallbackManager callbackManager;
        private AccessToken accessToken;


        @Override
            protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                FacebookSdk.sdkInitialize(getApplicationContext());
                setContentView(R.layout.activity_userlogin);
                loginButton = (LoginButton) findViewById(R.id.fb_login_button);
                loginstatus = (TextView)findViewById(R.id.loginstatus);
                callbackManager = CallbackManager.Factory.create();
                loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {

        // **Description: If the user cancels the login before it is completed a message will
        //                be shown to let them know that they are not logged in
        //**Parameters:
        //** Loginresult: the results of the login attempt.
        //**
        //**Precondition: loginButton must have been clicked first
        //**
        //**throws: N/A
        //** returns: a textView that displays a message of whether or not the login was succesful

            public void onSuccess(LoginResult loginResult) {
            loginstatus.setText("Login Success");
            accessToken = loginResult.getAccessToken();

            Toast.makeText(userlogin.this, "Eureka", Toast.LENGTH_LONG).show();
            GraphRequest request = GraphRequest.newMeRequest(accessToken, new GraphRequest.GraphJSONObjectCallback() {


                public void onCompleted(JSONObject object, GraphResponse response) {
                    Log.d("FB", "complete");
                    Log.d("FB", object.optString("name"));
                    Log.d("FB", object.optString("link"));
                    Log.d("FB", object.optString("id"));
                    Log.d("FB", object.optString("gender"));
                    TextView Username;
                    Username = (TextView) findViewById(R.id.loginstatus);
                    String id = object.optString("id");
                    String name = object.optString("name");
                    Username.setText("Welcome:" + name);
                    ImageView userPhoto = (ImageView) findViewById(R.id.facebookuserPortrait);
                    String i = "http://graph.facebook.com/" + id + "/picture?type=large";
                    Glide.with(userlogin.this).load(i).override(350, 350).into(userPhoto);
                    Intent intent = new Intent(userlogin.this, AlertsandPlanning.class);
                        startActivity(intent);


                }

                // **Description: If the user cancels the login before it is completed a message will
                //                be shown to let them know that they are not logged in
                //**Parameters: N/A
                //**
                //**Precondition: loginButton must have been clicked first
                //**
                //**throws: N/A
                //** returns: a textView that displays a message
                public void onCancel() {
                    loginstatus.setText("Login Canceled");
                }

                // **Description: If the user has an error during the login before it is completed
                //                a message will be shown to let them know that they are not logged in
                //**Parameters: FacebookException: an error transpoding if the login fails
                //**
                //**Precondition: loginButton must have been clicked first
                //**
                //**throws: Exception
                //** returns: a textView that displays a message
                public void onError(FacebookException exception) {
                    loginstatus.setText("Something went wrong \n+" +
                            "Check your credentials and try again");

                }
            });
        }

        @Override
        public void onCancel() {

        }

        @Override
        public void onError(FacebookException error) {

        }

        protected void onActivivityResult(int requestCode, int resultCode, Intent data) {
            userlogin.super.onActivityResult(requestCode, resultCode, data);
            callbackManager.onActivityResult(requestCode, resultCode, data);
        }


    });
}

}

我感谢任何给予的洞察力，我可能会从头开始这项活动，并再次尝试，如果没有任何似乎工作。

重申这个问题：点击“Continue with Facebook”按钮，显示的下一个活动是userlogin活动，而不是AlertsandPlanning活动。

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.content.Intent;
import com.facebook.CallbackManager;
import com.facebook.login.widget.LoginButton;
import com.facebook.FacebookSdk;
import android.view.View;
import com.facebook.login.LoginResult;
import com.facebook.FacebookCallback;
import org.json.JSONObject;
import android.widget.Toast;
import com.facebook.AccessToken;
import com.facebook.login.LoginManager;
import com.facebook.GraphResponse;
import com.facebook.FacebookException;
import com.facebook.GraphRequest;
import com.facebook.GraphRequestAsyncTask;
    public class UserLogin extends AppCompatActivity implements View.OnClickListener {

LoginButton btnFacebookLogin;
CallbackManager callbackManager;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    FacebookSdk.sdkInitialize(getApplicationContext());
    setContentView(R.layout.activity_user_login);
    callbackManager = CallbackManager.Factory.create();
    setUI();
}

private void setUI() {


    btnFacebookLogin = (LoginButton) findViewById(R.id.FBLoginBtn);

    btnFacebookLogin.setOnClickListener(this);
    btnFacebookLogin.setReadPermissions("email", "public_profile");

}

@Override
public void onClick(View v) {
    switch (v.getId()) {

        case R.id.FBLoginBtn:
            facebookLogin();
    }
}

private void facebookLogin() {
    // Callback registration
    btnFacebookLogin.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
        @Override
        public void onSuccess(LoginResult loginResult) {

            final AccessToken accessToken = loginResult.getAccessToken();
            GraphRequestAsyncTask request = GraphRequest.newMeRequest(accessToken, new GraphRequest.GraphJSONObjectCallback() {
                @Override
                public void onCompleted(JSONObject user, GraphResponse graphResponse) {
                    LoginManager.getInstance().logOut();
                    String username = (user.optString("name"));
                }
            }).executeAsync();


            Toast.makeText(getApplicationContext(), "Login Success with facebook", Toast.LENGTH_SHORT).show();
            Intent startAlertsAndPlanning = new Intent(UserLogin.this, AlertsAndPlanning.class);
            startActivity(startAlertsAndPlanning);


        }

        @Override
        public void onCancel() {
            // App code
        }

        @Override
        public void onError(FacebookException exception) {
            // App code
        }
    });

}


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

}

Answer 1

请尝试使用以下代码。希望对您有帮助，请使用CamelCase表示类名。

public class Userlogin extends AppCompatActivity implements View.OnClickListener {

        LoginButton btnFacebookLogin;
        CallbackManager callbackManager;

        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            FacebookSdk.sdkInitialize(getApplicationContext());
            setContentView(R.layout.activity_main);
            callbackManager = CallbackManager.Factory.create();
            setUI();
        }

        private void setUI() {


            btnFacebookLogin = (LoginButton) findViewById(R.id.btnFacebookLogin);

            btnFacebookLogin.setOnClickListener(this);
            btnFacebookLogin.setReadPermissions("email", "public_profile");

        }

        @Override
        public void onClick(View v) {
            switch (v.getId()) {

                case R.id.btnFacebookLogin:
                    facebookLogin();
            }
        }

        private void facebookLogin() {
    // Callback registration
            btnFacebookLogin.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
                @Override
                public void onSuccess(LoginResult loginResult) {
                    // App code

                    final AccessToken accessToken = loginResult.getAccessToken();
                    GraphRequestAsyncTask request = GraphRequest.newMeRequest(accessToken, new GraphRequest.GraphJSONObjectCallback() {
                        @Override
                        public void onCompleted(JSONObject user, GraphResponse graphResponse) {
                            LoginManager.getInstance().logOut();
                            username = (user.optString("name"));
                        }
                    }).executeAsync();


                    Toast.makeText(getApplicationContext(), "Login Success with facebook", Toast.LENGTH_SHORT).show();
                    startActivity(new Intent(Userlogin .this, AlertsandPlanning.class));


                }

                @Override
                public void onCancel() {
                    // App code
                }

                @Override
                public void onError(FacebookException exception) {
                    // App code
                }
            });

        }


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