使用Facebook SDK 4.0进行Android登录

Question

我希望任何人都能帮助我！ 我想更改新的Facebook sdk 4.0的代码，但只有一点描述，我发疯了，不知道如何使用Facebook登录按钮和accesstoken制作新代码

此代码的目标是用户使用其Facebook帐户登录并检查用户是否已经退出。 如果不是，则使用电子邮件，Facebook ID和名称插入新用户

我已将代码标记为//需要更改和//需要更改END

提前感谢任何帮助！

 import com.facebook.AccessToken; import com.facebook.CallbackManager; import com.facebook.FacebookCallback; import com.facebook.FacebookException; import com.facebook.FacebookSdk; import com.facebook.login.LoginResult; import com.facebook.login.widget.LoginButton; // import com.facebook.Request; //import com.facebook.Request.GraphUserCallback; // import com.facebook.Response; // import com.facebook.Session; // import com.facebook.SessionState; //import com.facebook.UiLifecycleHelper; // import com.facebook.model.GraphUser; // import com.facebook.widget.LoginButton; @SuppressLint("NewApi") public class AuthenticationFragment extends Fragment { LoginButton facebookLoginButton; // private UiLifecycleHelper uiHelper; String TAG = "Fragment"; Button btnLogin, btnCreateAccount; ProgressDialog dialogPrg; String userName = null; // New Facebook Added CallbackManager callbackManager; public static final AuthenticationFragment newInstance() { // TODO Auto-generated constructor stub AuthenticationFragment fragment = new AuthenticationFragment(); return fragment; } @Override public void onAttach(Activity activity) { // TODO Auto-generated method stub super.onAttach(activity); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // TODO Auto-generated method stub View view = inflater.inflate(R.layout.authentication_layout, container, false); facebookLoginButton = (LoginButton) view .findViewById(R.id.btnFacebookLogin); facebookLoginButton.setFragment(this); facebookLoginButton.setReadPermissions(Arrays.asList("email")); // New added for Facebook // Callback registration facebookLoginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() { @Override public void onSuccess(LoginResult loginResult) { // App code //login ok get access token AccessToken.getCurrentAccessToken(); } @Override public void onCancel() { // App code Log.i(TAG, "facebook login canceled"); } @Override public void onError(FacebookException exception) { // App code Log.i(TAG, "facebook login failed error"); } }); //New added for Facebook END btnLogin = (Button) view.findViewById(R.id.btn_login); btnCreateAccount = (Button) view.findViewById(R.id.btn_create_account); btnLogin.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(getActivity(), LoginActivity.class); startActivity(intent); } }); btnCreateAccount.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub Intent intent = new Intent(getActivity(), CreateAccountActivity.class); startActivity(intent); } }); dialogPrg = new ProgressDialog(getActivity()); dialogPrg.setCanceledOnTouchOutside(false); return view; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // uiHelper = new UiLifecycleHelper(getActivity(), callback); // uiHelper.onCreate(savedInstanceState); } // Needs to be changed private Session.StatusCallback callback = new Session.StatusCallback() { @Override public void call(final Session session, final SessionState state, final Exception exception) { onSessionStateChange(session, state, exception); } }; // Needs to be changed END private void onSessionStateChange(Session session, SessionState state, Exception exception) { if (state.isOpened()) { Log.i("FB AUT FRAGMENT", "Logged in..."); } else if (state.isClosed()) { Log.i("FB AUT FRAGMENT", "Logged out..."); } } // Needs to be changed private void insertUser(Session session) { Request.newMeRequest(session, new GraphUserCallback() { @Override public void onCompleted(GraphUser user, Response response) { // TODO Auto-generated method stub new facebookUserCheck(user).start(); } }).executeAsync(); } // Needs to be changed END // Needs to be changed private class facebookUserCheck extends Thread { GraphUser user; public facebookUserCheck(GraphUser user) { // TODO Auto-generated constructor stub this.user = user; } // Needs to be changed @Override public void run() { // TODO Auto-generated method stub super.run(); // TODO Auto-generated method stub String handleInsertUser = getActivity().getResources().getString( R.string.users_json_url) + "facebook_user_check"; try { HttpClient client = new DefaultHttpClient(); HttpPost post = new HttpPost(handleInsertUser); MultipartEntity reqEntity = new MultipartEntity(); // Needs to be changed user.getId reqEntity.addPart("fb_id", new StringBody(user.getId())); // Needs to be changed END post.setEntity(reqEntity); HttpResponse res = client.execute(post); HttpEntity resEntity = res.getEntity(); final String response_str = EntityUtils.toString(resEntity); if (resEntity != null) { Log.i(TAG, response_str); getActivity().runOnUiThread(new Runnable() { public void run() { try { dialogPrg.dismiss(); JSONArray jsonArray = new JSONArray( response_str); if (jsonArray.length() == 1) { JSONObject obj = jsonArray.getJSONObject(0); User user = Ultils.parseUser(obj); UserSessionManager userSession = new UserSessionManager( getActivity()); userSession.storeUserSession(user); Intent intent = new Intent(getActivity(), HomeActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); } } catch (Exception e) { LayoutInflater inflater = LayoutInflater .from(getActivity()); View promptsView = inflater.inflate( R.layout.username_promtps_layout, null); AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder( getActivity()); // set prompts.xml to alertdialog builder alertDialogBuilder.setView(promptsView); final EditText message = (EditText) promptsView .findViewById(R.id.editTextDialogUserInput); alertDialogBuilder .setMessage(getResources().getString( R.string.choose_your_user_name)); // set dialog message alertDialogBuilder .setCancelable(false) .setPositiveButton( getResources().getString( R.string.ok_label), new DialogInterface.OnClickListener() { public void onClick( DialogInterface dialog, int id) { if (!Validator .validUserName(message .getText() .toString())) { showDialog(getResources() .getString( R.string.invalid_user_name)); return; } userName = message .getText() .toString(); new facebookUserRegister( user).start(); } }); // create alert dialog AlertDialog alertDialog = alertDialogBuilder .create(); // show it alertDialog.show(); } } }); } } catch (Exception e) { // TODO: handle exception e.printStackTrace(); } } } // Needs to be changed private class facebookUserRegister extends Thread { GraphUser user; public facebookUserRegister(GraphUser user) { // TODO Auto-generated constructor stub this.user = user; } // Needs to be changed END @Override public void run() { super.run(); getActivity().runOnUiThread(new Runnable() { @Override public void run() { // TODO Auto-generated method stub dialogPrg.show(); } }); String handleInsertUser = getActivity().getResources().getString( R.string.users_json_url) + "facebook_user_register"; try { HttpClient client = new DefaultHttpClient(); HttpPost post = new HttpPost(handleInsertUser); MultipartEntity reqEntity = new MultipartEntity(); // Needs to be changed user.getId, user.getName, user.asMap reqEntity.addPart("fb_id", new StringBody(user.getId())); reqEntity.addPart("fullname", new StringBody(user.getName())); reqEntity.addPart("email", new StringBody(user.asMap().get("email").toString())); // Needs to be changed END reqEntity.addPart("username", new StringBody(userName)); post.setEntity(reqEntity); HttpResponse res = client.execute(post); HttpEntity resEntity = res.getEntity(); final String response_str = EntityUtils.toString(resEntity); if (resEntity != null) { Log.i(TAG, response_str); getActivity().runOnUiThread(new Runnable() { public void run() { try { dialogPrg.dismiss(); JSONObject jsonObj = new JSONObject( response_str); if (jsonObj.getString("ok").equals("0")) { // show error email; showDialog(getActivity().getResources() .getString(R.string.email_exist)); return; } if (jsonObj.getString("ok").equals("1")) { // show error username showDialog(getActivity() .getResources() .getString(R.string.user_name_exist)); return; } if (jsonObj.getString("ok").equals("2")) { // show unknow username showDialog(getActivity().getResources() .getString(R.string.login_failed)); return; } } catch (Exception e) { JSONArray jsonArray; try { jsonArray = new JSONArray(response_str); if (jsonArray.length() == 1) { JSONObject obj = jsonArray .getJSONObject(0); User user = Ultils.parseUser(obj); UserSessionManager userSession = new UserSessionManager( getActivity()); userSession.storeUserSession(user); Intent intent = new Intent( getActivity(), HomeActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); } } catch (JSONException e1) { // TODO Auto-generated catch block e1.printStackTrace(); showDialog(getActivity().getResources() .getString(R.string.login_failed)); } } } }); } } catch (Exception e) { // TODO: handle exception e.printStackTrace(); } } } // Needs to be changed @Override public void onResume() { super.onResume(); Session session = Session.getActiveSession(); if (session != null && (session.isOpened() || session.isClosed())) { onSessionStateChange(session, session.getState(), null); } // uiHelper.onResume(); } // Needs to be changed END @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); // New Facebook added callbackManager.onActivityResult(requestCode, resultCode, data); //New Facebook added END // uiHelper.onActivityResult(requestCode, resultCode, data); // Needs to be changed if (Session.getActiveSession() != null && Session.getActiveSession().isOpened()) { dialogPrg.setMessage(getActivity().getResources().getString( R.string.loging)); dialogPrg.show(); facebookLoginButton.setEnabled(false); insertUser(Session.getActiveSession()); } } // Needs to be changed END @Override public void onPause() { super.onPause(); // uiHelper.onPause(); } @Override public void onDestroy() { super.onDestroy(); // uiHelper.onDestroy(); } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); // uiHelper.onSaveInstanceState(outState); } public void showDialog(String message) { Ultils.logout(getActivity()); AlertDialog.Builder buidler = new AlertDialog.Builder(getActivity()); buidler.setMessage(message); buidler.setPositiveButton( getActivity().getResources().getString(R.string.ok_label), new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method // stub facebookLoginButton.setEnabled(true); } }); AlertDialog dialog = buidler.create(); dialog.show(); } } 

Answer 1

使用此代码段进行Facebook登录。 在我的应用程序中就像魅力一样。

 import java.util.Arrays; import java.util.Date; import java.util.List; import com.facebook.AppEventsLogger; import com.facebook.FacebookAuthorizationException; import com.facebook.FacebookOperationCanceledException; import com.facebook.FacebookRequestError; import com.facebook.Request; import com.facebook.Response; import com.facebook.Session; import com.facebook.SessionState; import com.facebook.UiLifecycleHelper; import com.facebook.model.GraphObject; import com.facebook.model.GraphPlace; import com.facebook.model.GraphUser; import com.facebook.widget.FacebookDialog; import com.facebook.widget.LoginButton; import com.facebook.widget.ProfilePictureView; import com.ids.service.R; import android.support.v4.app.FragmentActivity; import android.app.AlertDialog; import android.content.Intent; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.util.Log; public class MainActivity extends FragmentActivity { private final String PENDING_ACTION_BUNDLE_KEY = "com.facebook.samples.hellofacebook:PendingAction"; private LoginButton loginButton; private ProfilePictureView profilePictureView; private PendingAction pendingAction = PendingAction.NONE; private GraphUser user; private GraphPlace place; private List<GraphUser> tags; private boolean canPresentShareDialog; private boolean canPresentShareDialogWithPhotos; private enum PendingAction { NONE, POST_PHOTO, POST_STATUS_UPDATE } private UiLifecycleHelper uiHelper; private Session.StatusCallback callback = new Session.StatusCallback() { @Override public void call(Session session, SessionState state, Exception exception) { onSessionStateChange(session, state, exception); } }; private FacebookDialog.Callback dialogCallback = new FacebookDialog.Callback() { @Override public void onError(FacebookDialog.PendingCall pendingCall, Exception error, Bundle data) { Log.d("Facebook", String.format("Error: %s", error.toString())); } @Override public void onComplete(FacebookDialog.PendingCall pendingCall, Bundle data) { Log.d("Facebook", "Success!"); } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); uiHelper = new UiLifecycleHelper(this, callback); uiHelper.onCreate(savedInstanceState); if (savedInstanceState != null) { String name = savedInstanceState.getString(PENDING_ACTION_BUNDLE_KEY); pendingAction = PendingAction.valueOf(name); } setContentView(R.layout.activity_main); profilePictureView = (ProfilePictureView) findViewById(R.id.profilePicture); loginButton = (LoginButton) findViewById(R.id.login_button); loginButton.setUserInfoChangedCallback(new LoginButton.UserInfoChangedCallback() { @Override public void onUserInfoFetched(GraphUser user) { MainActivity.this.user = user; updateUI(); // It's possible that we were waiting for this.user to be populated in order to post a // status update. handlePendingAction(); } }); } @Override protected void onResume() { super.onResume(); uiHelper.onResume(); // Call the 'activateApp' method to log an app event for use in analytics and advertising reporting. Do so in // the onResume methods of the primary Activities that an app may be launched into. AppEventsLogger.activateApp(this); updateUI(); } @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); uiHelper.onSaveInstanceState(outState); outState.putString(PENDING_ACTION_BUNDLE_KEY, pendingAction.name()); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); uiHelper.onActivityResult(requestCode, resultCode, data, dialogCallback); } @Override public void onPause() { super.onPause(); uiHelper.onPause(); // Call the 'deactivateApp' method to log an app event for use in analytics and advertising // reporting. Do so in the onPause methods of the primary Activities that an app may be launched into. AppEventsLogger.deactivateApp(this); } @Override public void onDestroy() { super.onDestroy(); uiHelper.onDestroy(); } private void onSessionStateChange(Session session, SessionState state, Exception exception) { if (pendingAction != PendingAction.NONE && (exception instanceof FacebookOperationCanceledException || exception instanceof FacebookAuthorizationException)) { new AlertDialog.Builder(MainActivity.this) .setTitle(R.string.cancelled) .setMessage(R.string.permission_not_granted) .setPositiveButton(R.string.ok, null) .show(); pendingAction = PendingAction.NONE; } else if (state == SessionState.OPENED_TOKEN_UPDATED) { handlePendingAction(); } updateUI(); } @SuppressWarnings("unused") private void updateUI() { Session session = Session.getActiveSession(); if (user != null) { profilePictureView.setProfileId(user.getId()); Log.e("Name", user.getName()); } } @SuppressWarnings("incomplete-switch") private void handlePendingAction() { PendingAction previouslyPendingAction = pendingAction; // These actions may re-set pendingAction if they are still pending, but we assume they // will succeed. pendingAction = PendingAction.NONE; switch (previouslyPendingAction) { case POST_PHOTO: postPhoto(); break; case POST_STATUS_UPDATE: postStatusUpdate(); break; } } private interface GraphObjectWithId extends GraphObject { String getId(); } private void showPublishResult(String message, GraphObject result, FacebookRequestError error) { String title = null; String alertMessage = null; if (error == null) { title = getString(R.string.success); String id = result.cast(GraphObjectWithId.class).getId(); alertMessage = getString(R.string.successfully_posted_post, message, id); } else { title = getString(R.string.error); alertMessage = error.getErrorMessage(); } new AlertDialog.Builder(this) .setTitle(title) .setMessage(alertMessage) .setPositiveButton(R.string.ok, null) .show(); } private FacebookDialog.ShareDialogBuilder createShareDialogBuilderForLink() { return new FacebookDialog.ShareDialogBuilder(this) .setName("Hello Facebook") .setDescription("The 'Hello Facebook' sample application showcases simple Facebook integration") .setLink("http://developers.facebook.com/android"); } private void postStatusUpdate() { if (canPresentShareDialog) { FacebookDialog shareDialog = createShareDialogBuilderForLink().build(); uiHelper.trackPendingDialogCall(shareDialog.present()); } else if (user != null && hasPublishPermission()) { final String message = getString(R.string.status_update, user.getFirstName(), (new Date().toString())); Request request = Request .newStatusUpdateRequest(Session.getActiveSession(), message, place, tags, new Request.Callback() { @Override public void onCompleted(Response response) { showPublishResult(message, response.getGraphObject(), response.getError()); } }); request.executeAsync(); } else { pendingAction = PendingAction.POST_STATUS_UPDATE; } } private FacebookDialog.PhotoShareDialogBuilder createShareDialogBuilderForPhoto(Bitmap... photos) { return new FacebookDialog.PhotoShareDialogBuilder(this) .addPhotos(Arrays.asList(photos)); } private void postPhoto() { Bitmap image = BitmapFactory.decodeResource(this.getResources(), R.drawable.ic_launcher); if (canPresentShareDialogWithPhotos) { FacebookDialog shareDialog = createShareDialogBuilderForPhoto(image).build(); uiHelper.trackPendingDialogCall(shareDialog.present()); } else if (hasPublishPermission()) { Request request = Request.newUploadPhotoRequest(Session.getActiveSession(), image, new Request.Callback() { @Override public void onCompleted(Response response) { showPublishResult(getString(R.string.photo_post), response.getGraphObject(), response.getError()); } }); request.executeAsync(); } else { pendingAction = PendingAction.POST_PHOTO; } } private boolean hasPublishPermission() { Session session = Session.getActiveSession(); return session != null && session.getPermissions().contains("publish_actions"); } } 

Answer 2

正如您在第4.0节-2015年3月25日在Android SDK的Facebook SDK日志中所看到的， UiLifecycleHelper被删除，其功能已转移到CallbackManager。

这是一个教程，解释了如何使用facebook SDK 4.0实现登录。