我目前正在使用Parse开发一个Android应用程序。我的应用程序的一部分是社交登录组件。我可以正常启动Facebook登录对话框并将其与我的facebook凭据一起使用。 Facebook登录完成后，没有任何反应。我查看了调试器，发现Facebook登录后ParseUser变量仍然为空。这是我的班级代码。
import android.app.Dialog;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.myapp.myapp_app.NavigationDraw;
import com.myapp.myapp_app.R;
import com.myapp.myapp_app.Welcome;
import com.facebook.AccessToken;
import com.facebook.GraphRequest;
import com.facebook.GraphResponse;
import com.parse.LogInCallback;
import com.parse.Parse;
import com.parse.ParseException;
import com.parse.ParseFacebookUtils;
import com.parse.ParseUser;
import com.parse.SaveCallback;
import com.parse.SignUpCallback;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.Arrays;
import java.util.List;
public class LoginSignupActivity extends Fragment {
private static final String ARG_SECTION_NUMBER = "section_number";
public static LoginSignupActivity newInstance(int sectionNumber) {
LoginSignupActivity logsign = new LoginSignupActivity();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
return logsign;
}
private Dialog progressDialog;
//Facebook-Login
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
ParseFacebookUtils.onActivityResult(requestCode, resultCode, data);
}
Button loginbutton;
Button signup;
Button facebookloginbutton;
String usernametxt;
String passwordtxt;
EditText password;
EditText username;
ParseUser user = new ParseUser();
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
View rootView = inflater.inflate(R.layout.loginsignup, container, false);
username = (EditText) rootView.findViewById(R.id.username);
password = (EditText) rootView.findViewById(R.id.password);
loginbutton = (Button) rootView.findViewById(R.id.login);
signup = (Button) rootView.findViewById(R.id.signup);
facebookloginbutton = (Button) rootView.findViewById(R.id.facebook_login);
loginbutton.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
usernametxt = username.getText().toString();
passwordtxt = password.getText().toString();
ParseUser.logInInBackground(usernametxt, passwordtxt,
new LogInCallback() {
public void done(ParseUser user, ParseException e) {
if (user != null) {
// Fragmentwechsel
final FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.container, new Welcome(), "NewFragmentTag");
ft.commit();
} else {
}
}
});
}
});
signup.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
// Fragmentwechsel
final FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.container, new SignupActivity(), "NewFragmentTag");
ft.addToBackStack(null);
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
ft.commit();
}
});
facebookloginbutton.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
List<String> permissions = Arrays.asList("public_profile", "email");
ParseFacebookUtils.logInWithReadPermissionsInBackground(getActivity(), permissions, new LogInCallback() {
@Override
public void done(ParseUser user, ParseException err) {
if (user == null) {
Log.d("MyApp", "Uh oh. The user cancelled the Facebook login.");
} else if (user.isNew()) {
Log.d("MyApp", "User signed up and logged in through Facebook!");
showUserProfile();
} else {
Log.d("MyApp", "User logged in through Facebook!");
showUserProfile();
}
}
});
}
});
return rootView;
}
private void createFacebookUser() {
GraphRequest request = GraphRequest.newMeRequest(AccessToken.getCurrentAccessToken(),
new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(JSONObject jsonObject, GraphResponse graphResponse) {
if (jsonObject != null) {
JSONObject userProfile = new JSONObject();
try {
user.put("facebookId", jsonObject.getLong("id"));
user.setUsername(jsonObject.getString("name"));
if (jsonObject.getString("email") != null)
user.setEmail(jsonObject.getString("email"));
user.signUpInBackground(new SignUpCallback() {
public void done(ParseException e) {
if (e == null) {
// Fragmentwechsel
final FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.container, new Welcome(), "NewFragmentTag");
ft.commit();
// Infoanzeige, dass Anmeldung erfolgreich war
Toast.makeText(getActivity().getApplicationContext(),
getResources().getString(R.string.signup_success),
Toast.LENGTH_LONG).show();
} else {
Toast.makeText(getActivity().getApplicationContext(),
getResources().getString(R.string.error),
Toast.LENGTH_LONG).show();
}
}
});
// Show the user info
} catch (JSONException e) {
Log.d(ParseApplication.TAG,
"Error parsing returned user data. " + e);
}
} else if (graphResponse.getError() != null) {
switch (graphResponse.getError().getCategory()) {
case LOGIN_RECOVERABLE:
Log.d(ParseApplication.TAG,
"Authentication error: " + graphResponse.getError());
break;
case TRANSIENT:
Log.d(ParseApplication.TAG,
"Transient error. Try again. " + graphResponse.getError());
break;
case OTHER:
Log.d(ParseApplication.TAG,
"Some other error: " + graphResponse.getError());
break;
}
}
}
});
request.executeAsync();
}
private void showUserProfile(){
final FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.container, new TestProfile(), "NewFragmentTag");
ft.addToBackStack(null);
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
ft.commit();
}
}
我还做了facebook和解析指南建议的所有内容来设置登录。
任何人都可以帮助我吗？
感谢您的帮助！
答案 0 :(得分：0)