[英]facebook sdk Graphrequest object returns null in android
我正在尝试获取Facebook用户详细信息，例如姓名，用户ID，电子邮件，位置，性别。 我在日志中收到带有用户信息的响应，但无法存储在会话中或发送给其他活动，例如从“登录活动”到“主活动”的表单，下面是我在“登录活动”中的代码
public class LoginActivity extends AppCompatActivity {
LoginButton fbloginbtn;
CallbackManager callbackManager;
private EditText username_login,password_login;
Typeface tf;
ProfilePictureView profilePictureView;
AccessTokenTracker accessTokenTracker;
ProfileTracker mprofileTracker;
private ProgressDialog progressDialog;
private Session session;
private Button loginbtn;
private TextView register;
@Override
protected void onCreate(Bundle savedInstanceState) {
getWindow().requestFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
session = new Session(LoginActivity.this);
progressDialog = new ProgressDialog(this);
progressDialog.setCancelable(false);
username_login = (EditText) findViewById(R.id.login_username);
password_login = (EditText) findViewById(R.id.login_password);
loginbtn = (Button) findViewById(R.id.login_btn);
register = (TextView) findViewById(R.id.register);
tf= Typeface.createFromAsset(getAssets(),"fonts/Roboto-Thin.ttf");
username_login.setTypeface(tf);
password_login.setTypeface(tf);
fbloginbtn = (LoginButton) findViewById(R.id.fb_login_btn);
callbackManager = CallbackManager.Factory.create();
register.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(getApplicationContext(),RegisterActivity.class);
startActivity(intent);
finish();
}
});
loginbtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String username = username_login.getText().toString();
String password = password_login.getText().toString();
if(username.trim().length() > 0 && password.trim().length() > 0){
checkLogin(username,password);
}else{
Toast.makeText(LoginActivity.this,"Please Enter The Credentials!", Toast.LENGTH_LONG).show();
}
}
});
callbackManager = CallbackManager.Factory.create();
LoginManager loginManager = LoginManager.getInstance();
fbloginbtn.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
AccessToken accessToken = AccessToken.getCurrentAccessToken();
//Profile profile = Profile.getCurrentProfile();
getProfileInformationFacebook(accessToken);
Log.e("login res", loginResult.toString());
session.setFblogin(true);
//Intent fblogin = new Intent(LoginActivity.this,MainActivity.class);
//startActivity(fblogin);
//finish();
}
@Override
public void onCancel() {
Toast.makeText(LoginActivity.this, "Your Login is Cancel ", Toast.LENGTH_SHORT).show();
}
@Override
public void onError(FacebookException error) {
Toast.makeText(LoginActivity.this, "error to Login Facebook", Toast.LENGTH_SHORT).show();
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
callbackManager.onActivityResult(requestCode,resultCode,data);
}
private void checkLogin(final String username, final String password) {
String tag_string_req = "req_login";
progressDialog.setMessage("Logging in ...");
showDialog();
StringRequest strReq = new StringRequest(Request.Method.POST,
AppURLs.URL, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
hideDialog();
try {
JSONObject jObj = new JSONObject(response);
String userId = jObj.getString("user_id");
String uname = jObj.getString("uname");
//JSONObject subObj = new JSONObject("user");
//String userName = subObj.getString("name");
if (userId != null) {
session.setLogin(true);
session.setMember(userId , uname);
Intent intent = new Intent(LoginActivity.this,
MainActivity.class);
intent.putExtra("user_id", userId);
intent.putExtra("uname", uname);
startActivity(intent);
finish();
} else {
String errorMsg = jObj.getString("error_msg");
Toast.makeText(getApplicationContext(),
errorMsg, Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(getApplicationContext(),
error.getMessage(), Toast.LENGTH_LONG).show();
hideDialog();
}
}) {
@Override
protected Map<String, String> getParams() {
// Post params to login url
Map<String, String> params = new HashMap<String, String>();
params.put("tag", "login");
params.put("username", username);
params.put("password", password);
return params;
}
};
// Adding request to queue
AppController.getInstance().addToRequestQueue(strReq, tag_string_req);
}
private void showDialog() {
if (!progressDialog.isShowing())
progressDialog.show();
}
private void hideDialog() {
if (progressDialog.isShowing())
progressDialog.dismiss();
}
//Exit on press twice
boolean doubleBackToExitPressedOnce = false;
@Override
public void onBackPressed() {
if (doubleBackToExitPressedOnce) {
super.onBackPressed();
return;
}
this.doubleBackToExitPressedOnce = true;
Toast.makeText(this, "Please click BACK again to exit", Toast.LENGTH_SHORT).show();
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
doubleBackToExitPressedOnce=false;
}
}, 2000);
}
// fb user informaiton
public void getProfileInformationFacebook(AccessToken accToken) {
GraphRequest request = GraphRequest.newMeRequest(
accToken,
new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(
JSONObject object,
GraphResponse response) {
Log.e("object", object.toString());
String fbId = null;
String fbBirthday = null;
String fbLocation = null;
String fbEmail = null;
String fbName = null;
String fbGend = null;
String fbPropic = null;
try {
fbId = object.getString("id");
fbEmail = object.getString("email");
fbName = object.getString("name");
fbGend = object.getString("gender");
fbBirthday = object.getString("birthday");
JSONObject jsonObject = object.getJSONObject("location");
fbLocation = jsonObject.getString("name");
//fbPropic = "https://graph.facebook.com/\"+ fbId +\"/picture?type=small";
session.FbLogindata(fbId, fbName, fbPropic, fbLocation, fbGend, fbEmail);
Intent fbdata = new Intent(LoginActivity.this, MainActivity.class);
fbdata.putExtra("fbid",object.getString("id"));
fbdata.putExtra("fbname",object.getString("name"));
fbdata.putExtra("email",object.getString("email"));
fbdata.putExtra("gender",object.getString("gender"));
fbdata.putExtra("location",jsonObject.getString("name"));
// main.putExtra("imageUrl", profile.getProfilePictureUri(200,200).toString());
startActivity(fbdata);
} catch (JSONException e) {
e.printStackTrace();
}
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "id,name,email,location,gender,birthday");
request.setParameters(parameters);
request.executeAsync();
}
}
获取NullPointerException
在我的主要活动中
fbuname = (TextView) mHeaderView.findViewById(R.id.user_name);
fbuemail = (TextView) mHeaderView.findViewById(R.id.user_email);
Bundle inBundle = getIntent().getExtras();
if (inBundle != null){
String Fbid = inBundle.getString("fbid");
String Fbname = inBundle.getString("fbname");
fbuname.setText(Fbname);
fbuemail.setText(Fbid);
}
在我的logcat中
E/object: {"id":"1913429202227853","gender":"female","name":"Asesha George"}
我的进口
import android.app.ProgressDialog;
import android.content.Intent;
import android.graphics.Typeface;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.facebook.AccessToken;
import com.facebook.AccessTokenTracker;
import com.facebook.CallbackManager;
import com.facebook.FacebookCallback;
import com.facebook.FacebookException;
import com.facebook.FacebookSdk;
import com.facebook.GraphRequest;
import com.facebook.GraphResponse;
import com.facebook.Profile;
import com.facebook.ProfileTracker;
import com.facebook.login.LoginManager;
import com.facebook.login.LoginResult;
import com.facebook.login.widget.LoginButton;
import com.facebook.login.widget.ProfilePictureView;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.HashMap;
import java.util.Map;
如果您有任何疑问，请发表评论
试试这个你更新的方法
public void getProfileInformationFacebook(AccessToken accToken) {
GraphRequest request = GraphRequest.newMeRequest(
accToken,
new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(
JSONObject object,
GraphResponse response) {
Log.e("object", object.toString());
String fbId = null;
String fbBirthday = null;
String fbLocation = null;
String fbEmail = null;
String fbName = null;
String fbGend = null;
String fbPropic = null;
try {
if(object.has("id")){
fbId = object.getString("id");
}
else {
fbId = "";
}
if(object.has("email")){
fbEmail = object.getString("email");
}
else {
fbEmail = "";
}if(object.has("name")){
fbName = object.getString("name");
}
else {
fbName ="";
}if(object.has("gender")){
fbGend = object.getString("gender");
}
else {
fbGend = "";
}if(object.has("birthday")){
fbBirthday = object.getString("birthday");
}
else {
fbBirthday = "";
}if(object.has("location")){
JSONObject jsonObject = object.getJSONObject("location");
if(object.has("name"))
fbLocation = jsonObject.getString("name");
else
fbLocation ="";
}
else {
fbLocation ="";
}
//fbPropic = "https://graph.facebook.com/\"+ fbId +\"/picture?type=small";
session.FbLogindata(fbId, fbName, fbPropic, fbLocation, fbGend, fbEmail);
Intent fbdata = new Intent(LoginActivity.this, MainActivity.class);
fbdata.putExtra("fbid",fbId);
fbdata.putExtra("fbname",fbName);
fbdata.putExtra("email",fbEmail);
fbdata.putExtra("gender",fbGend);
fbdata.putExtra("location",fbLocation);
// main.putExtra("imageUrl", profile.getProfilePictureUri(200,200).toString());
startActivity(fbdata);
} catch (JSONException e) {
e.printStackTrace();
}
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "id,name,email,location,gender,birthday");
request.setParameters(parameters);
request.executeAsync();
}
在compile 'org.jsoup:jsoup:1.10.2'添加compile 'org.jsoup:jsoup:1.10.2'并更改import org.json.JSONObject; 而不是import com.google.gson.JsonObject; 在您登录活动，则has法正常工作
您最好从响应对象获取信息
String email = response.getJSONObject().getString("email");
String firstName = response.getJSONObject().getString("first_name");
String lastName = response.getJSONObject().getString("last_name");
String gender = response.getJSONObject().getString("gender");
或创建配置文件对象
Profile profile = Profile.getCurrentProfile();
String id = profile.getId();
String link = profile.getLinkUri().toString();
Log.d("Link",link);
if (Profile.getCurrentProfile()!=null)
{
Log.d("Login", "ProfilePic" + Profile.getCurrentProfile().getProfilePictureUri(200, 200));
}
Log.d("Login" + "Email", email);
Log.d("Login"+ "FirstName", firstName);
Log.d("Login" + "LastName", lastName);
Log.d("Login" + "Gender", gender);
获取用户信息时，Android Facebook sdk GraphRequest返回null
[英]Android Facebook sdk GraphRequest returns null when get user info
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