Facebook Integration Android: onComplete(GraphJSONObjectCall

Question

我正在尝试构建一个从Facebook个人资料中获取所有照片的应用程序，并且此代码位于UserProfileActivity中。但是启动此活动的意图位于 GraphRequest onCompleted 块中。正如我在调试时看到的那样，此块永远不会被执行。我尝试了很多来理解它，并看到了各种帖子，到处都是这样的代码。

public class MainActivity extends AppCompatActivity implements FacebookCallback<LoginResult>{
private LoginButton buttonLoginFacebook;
private TextView textViewMessage;
private CallbackManager callbackManager;
private String TAG = "MainActivity";
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    FacebookSdk.sdkInitialize(getApplicationContext());
    callbackManager = CallbackManager.Factory.create();
    setContentView(R.layout.activity_main);
    buttonLoginFacebook = (LoginButton)findViewById(R.id.buttonLoginFacebook);
    buttonLoginFacebook.setReadPermissions(Arrays.asList("public_profile, user_photos, user_posts"));
    textViewMessage = (TextView)findViewById(R.id.textViewMessage);
    buttonLoginFacebook.registerCallback(callbackManager,this);
}
@Override
public void onSuccess(LoginResult loginResult) {
    GraphRequest request = GraphRequest.newMeRequest(loginResult.getAccessToken(),
            new GraphRequest.GraphJSONObjectCallback() {
        @Override
        public void onCompleted(JSONObject object, GraphResponse response) {
            Log.e(TAG,object.toString());
            Log.e(TAG,response.toString());
            try{
                String userId = object.getString("id");
                URL profilePicture = new URL("https://graph.facebook.com/" + userId + "/picture?width=500&height=500");
                String fullName="";
                if(object.has("first_name"))
                    fullName += object.getString("first_name");
                if(object.has("last_name"))
                    fullName += " " + object.getString("last_name");
                Intent intent = new Intent(MainActivity.this,UserProfileActivity.class);
                intent.putExtra("name",fullName);
                intent.putExtra("imageUrl",profilePicture.toString());
                startActivity(intent);
                finish();
            } catch (JSONException e) {
                e.printStackTrace();
            } catch (MalformedURLException e) {
                e.printStackTrace();
            }
        }
    });
    Bundle parameters = new Bundle();
    parameters.putString("fields", "id, first_name, last_name");
    request.setParameters(parameters);
    request.executeAsync();
}
@Override
public void onCancel() {
    textViewMessage.setText("Login attempt cancelled");
}
@Override
public void onError(FacebookException error) {
    textViewMessage.setText("Login attempt failed");
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    callbackManager.onActivityResult(requestCode, resultCode, data);
}
}

代码永远不会进入 onCompleted 块。因此，UserProfileActivity 的意图永远不会被执行。我对Facebook Sdk有点陌生，所以任何帮助将不胜感激。

Answer 1

它对我有用

LoginManager.getInstance().registerCallback(mCallbackManager,
            new FacebookCallback<LoginResult>() {
                @Override
                public void onSuccess(LoginResult success) {
                    // TODO Auto-generated method stub
                    Log.d("facebookLogin", "successful"
                            + success.getRecentlyGrantedPermissions()
                            .toString() + " " + success.toString());
                    AccessToken token = success.getAccessToken();
                    if (token == null) {
                        Log.e("FBaccessToken", "null");
                    } else {
                        Log.d("FBAccesstoken", token.toString());
                        getFBMeData(token);
                    }
                }
                @Override
                public void onError(FacebookException e) {
                    if (e instanceof FacebookException) {
                        if (AccessToken.getCurrentAccessToken() != null) {
                            LoginManager.getInstance().logOut();
                        }
                    }
                }
                @Override
                public void onCancel() {
                    // TODO Auto-generated method stub
                    Log.d("facebookLogin", "canceled by user");
                }
            });
}
public void getFBMeData(AccessToken atoken) {
    Profile.fetchProfileForCurrentAccessToken();
    GraphRequest request = GraphRequest.newMeRequest(
            AccessToken.getCurrentAccessToken(),
            new GraphRequest.GraphJSONObjectCallback() {
                @Override
                public void onCompleted(JSONObject object,
                                        GraphResponse response) {
                    // TODO Auto-generated method stub
                    if (object != null) {
                        Log.d("FBGraphJSONObject", object.toString());
                        if(Profile.getCurrentProfile()!=null) {
                            FBdata.put("fbid", Profile.getCurrentProfile()
                                    .getId());
                            FBdata.put("fname", Profile.getCurrentProfile()
                                    .getFirstName());
                            FBdata.put("lname", Profile.getCurrentProfile()
                                    .getLastName());
                            String gender = object.optString("gender");
                            String dob = object.optString("birthday");
                            String locationName = "";
                            JSONObject location = object
                                    .optJSONObject("location");
                            if (location != null) {
                                locationName = location.optString("name");
                            }
                            String pictureUrl = "", email = "";
                            JSONObject picture = object
                                    .optJSONObject("picture");
                            JSONObject data = picture.optJSONObject("data");
                            try {
                                email = URLDecoder.decode(
                                        object.optString("email"), "UTF-8");
                                if (picture != null) {
                                    pictureUrl = URLDecoder.decode(
                                            data.optString("url"), "UTF-8");
                                }
                            } catch (UnsupportedEncodingException e) {
                                // TODO Auto-generated catch block
                                e.printStackTrace();
                            }
                            FBdata.put("photo", pictureUrl);
                            FBdata.put("address", locationName);
                            FBdata.put("dob", dob);
                            FBdata.put("gender", gender);
                            FBdata.put("email", email);
                    }
                }
            });
    Bundle params = new Bundle();
    params.putString("fields", "gender,email,birthday,location,picture");
    request.setParameters(params);
    request.executeAsync();
}

Answer 2

我遇到了同样的问题，问题是android.os.NetworkOnMainThreadException，所以请确保在单独的线程中调用网络请求。