编辑：
我的问题是如何通过Facebook SDK 4.X获取电子邮件,UserId,Facebook身份验证,此刻,与Ming Respond,我知道如何获取电子邮件,用户ID,所以我的问题是如何从会话后获取Facebook身份验证GraphUser刚刚被LoginManager和AccessToken所替代,并没有关于它的信息？
我的问题是如何通过Facebook SDK 4.X获取电子邮件,UserId,Facebook身份验证,此刻,与Ming Respond,我知道如何获取电子邮件,用户ID,所以我的问题是如何从会话后获取Facebook身份验证GraphUser刚刚被LoginManager和AccessToken所替代,并没有关于它的信息？
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import com.facebook.AccessToken;
import com.facebook.AccessTokenTracker;
import com.facebook.CallbackManager;
import com.facebook.FacebookCallback;
import com.facebook.FacebookException;
import com.facebook.Profile;
import com.facebook.ProfileTracker;
import com.facebook.login.LoginResult;
import com.facebook.login.widget.LoginButton;
import java.util.Arrays;
public class RegisterActivity extends Activity {
private String fbUserID;
private String fbProfileName;
private String fbAuthToken;
private LoginButton fbLoginBtn;
private static final String TAG = "FacebookLogin";
CallbackManager callbackManager;
private AccessTokenTracker accessTokenTracker;
private ProfileTracker profileTracker;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.register_activity);
fbLoginBtn = (LoginButton) findViewById(R.id.connect_with_facebook_button);
fbLoginBtn.setReadPermissions(Arrays.asList("email","user_photos","public_profile"));
fbLoginBtn.setBackgroundResource(R.drawable.connect_facebook_button);
accessTokenTracker = new AccessTokenTracker() {
@Override
protected void onCurrentAccessTokenChanged(
AccessToken oldAccessToken,AccessToken currentAccessToken) {
fbAuthToken = currentAccessToken.getToken();
fbUserID = currentAccessToken.getUserId();
Log.d(TAG,"User id: " + fbUserID);
Log.d(TAG,"Access token is: " + fbAuthToken);
}
};
profileTracker = new ProfileTracker() {
@Override
protected void onCurrentProfileChanged(
Profile oldProfile,Profile currentProfile) {
fbProfileName = currentProfile.getName();
Log.d(TAG,"User name: " + fbProfileName );
}
};
fbLoginBtn.registerCallback(callbackManager,new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
}
@Override
public void onCancel() {
// App code
}
@Override
public void onError(FacebookException exception) {
// App code
}
});
}
@Override
public void onActivityResult(int requestCode,int resultCode,Intent data) {
super.onActivityResult(requestCode,resultCode,data);
callbackManager.onActivityResult(requestCode,data);
}
GraphRequest request = GraphRequest.newMeRequest(
accessToken,new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(
JSONObject user,GraphResponse response) {
String id = user.optString("id");
String firstName = user.optString("first_name");
String lastName = user.optString("last_name");
String email = user.optString("email");
}
@Override
public void onSaveInstanceState(Bundle savedState) {
super.onSaveInstanceState(savedState);
}
解决方法
fbLoginBtn.registerCallback(callbackManager,new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
GraphRequest.newMeRequest(
loginResult.getAccessToken(),new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(JSONObject me,GraphResponse response) {
if (response.getError() != null) {
// handle error
} else {
String email = me.optString("email");
String id = me.optString("id");
// send email and id to your web server
}
}
}).executeAsync();
}
@Override
public void onCancel() {
// App code
}
@Override
public void onError(FacebookException exception) {
// App code
}
});
