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我希望有人能帮助我！我想改变我的代码为新的Facebook SDK 4.0，但只有一点说明，我变得疯狂，不知道如何使用Facebook登录按钮和accesstoken新代码用Facebook SDK 4.0进行安卓登录
此代码的目标是用户使用他的Facebook帐户登录并检查用户是否已经退出。如果没有的话用电子邮件和Facebook的ID和名称
插入新的用户我已经标有需要改变// //和需要改变提前结束
感谢名单的任何帮助的代码！
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();
}
}
你似乎没有用实际的实例初始化你的callbackManager。你应该尝试添加callbackManager = CallbackManager.Factory.create（）;在你的onCreateView中，就在你调用facebookLoginButton.registerCallback之前。 – 2015-03-30 23:49:50
嗨，是的，迄今为止，我已经把这个在AuthenticationActivity ....但对我来说很重要，我可以改变代码再次与facebook sdk 4.0一起工作 – Frank 2015-03-31 01:22:25
你在AuthenticationActivity中放了什么？ callbackManager的初始化？你可以在那里显示代码吗？这是真正获得登录结果的关键部分。 – 2015-03-31 01:42:33