设置从 Facebook 登录获取用户电子邮件 ID 的权限 [英] Set permission for getting User's email ID from Facebook Login
问题描述
我在 Android 上使用 Facebook 3.0 SDK.我必须实现 Facebook 登录.我正在访问用户的基本信息，如姓名、用户 ID.但我也想访问用户的电子邮件.我浏览了许多博客和论坛，但不知道该怎么做.
I'm using Facebook 3.0 SDK for android. I have to implement Facebook log in. I'm accessing user's basic info like name, userID. But I want to have access to email also of the user. I have gone through many blogs and forum but cannot figure out how to do that.
我使用自己的 android 按钮登录，而不是 com.facebook.widget.LoginButton.如果我使用 Facebook 登录按钮，只需使用以下几行即可:
I'm using my own android button for log in not com.facebook.widget.LoginButton. If I use Facebook log in button it was easy just have to use these lines:
authButton.setReadPermissions(Arrays.asList("basic_info","email"));
但是，我有自己的要求，必须使用默认的 android 按钮.这是我到目前为止所做的:
But, I have my own requirement, will have to go with default android buttons. Here is what I have done so far:
Session.NewPermissionsRequest newPermissionsRequest = new Session.NewPermissionsRequest(
this, Arrays.asList("email"));
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mLogin = (Button) findViewById(R.id.logIn);
mLogin.setOnClickListener(this);
}
@Override
public void onClick(View v) {
// start Facebook Login
Session.openActiveSession(this, true, new Session.StatusCallback() {
// callback when session changes state
@Override
public void call(final Session session, SessionState state,
Exception exception) {
if (session.isOpened()) {
session.requestNewReadPermissions(newPermissionsRequest);
// make request to the /me API
Request.executeMeRequestAsync(session,
new Request.GraphUserCallback() {
// callback after Graph API response with user
// object
@Override
public void onCompleted(GraphUser user,
Response response) {
if (user != null) {
System.out
.println("Facebook Response: "
+ response.toString());
access_token = session.getAccessToken();
firstName = user.getFirstName();
fb_user_id = user.getId();
System.out
.println("Facebook Access token: "
+ access_token);
System.out.println("First Name:"
+ firstName);
System.out.println("FB USER ID: "
+ fb_user_id);
}
}
});
}
}
});
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Session.getActiveSession().onActivityResult(this, requestCode,
resultCode, data);
}
我可以获取我在日志中打印的所有内容，但无法从用户个人资料中检索电子邮件.
I'm able to get all those things which I'm printing in log, but was unable to retrieve email from the user profile.
我能为此做什么?
任何形式的帮助将不胜感激.
Any kind of help will be appreciated.
推荐答案
已解决:这是我所做的...
Solved it: Here is what I have done...
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mLogin = (Button) findViewById(R.id.logIn);
mLogin.setOnClickListener(this);
}
@Override
public void onClick(View v) {
Session currentSession = Session.getActiveSession();
if (currentSession == null || currentSession.getState().isClosed()) {
Session session = new Session.Builder(context).build();
Session.setActiveSession(session);
currentSession = session;
}
if (currentSession.isOpened()) {
// Do whatever u want. User has logged in
} else if (!currentSession.isOpened()) {
// Ask for username and password
OpenRequest op = new Session.OpenRequest((Activity) context);
op.setLoginBehavior(SessionLoginBehavior.SUPPRESS_SSO);
op.setCallback(null);
List<String> permissions = new ArrayList<String>();
permissions.add("publish_stream");
permissions.add("user_likes");
permissions.add("email");
permissions.add("user_birthday");
op.setPermissions(permissions);
Session session = new Builder(MainActivity.this).build();
Session.setActiveSession(session);
session.openForPublish(op);
}
}
public void call(Session session, SessionState state, Exception exception) {
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (Session.getActiveSession() != null)
Session.getActiveSession().onActivityResult(this, requestCode,
resultCode, data);
Session currentSession = Session.getActiveSession();
if (currentSession == null || currentSession.getState().isClosed()) {
Session session = new Session.Builder(context).build();
Session.setActiveSession(session);
currentSession = session;
}
if (currentSession.isOpened()) {
Session.openActiveSession(this, true, new Session.StatusCallback() {
@Override
public void call(final Session session, SessionState state,
Exception exception) {
if (session.isOpened()) {
Request.executeMeRequestAsync(session,
new Request.GraphUserCallback() {
@Override
public void onCompleted(GraphUser user,
Response response) {
if (user != null) {
TextView welcome = (TextView) findViewById(R.id.welcome);
welcome.setText("Hello "
+ user.getName() + "!");
access_token = session
.getAccessToken();
firstName = user.getFirstName();
fb_user_id = user.getId();
System.out
.println("Facebook Access token: "
+ access_token);
System.out.println("First Name:"
+ firstName);
System.out.println("FB USER ID: "
+ fb_user_id);
}
}
});
}
}
});
}
}
现在我可以使用其余的发布权限获得电子邮件权限.
Now I'm able to get email permission with rest of the publish permission.
将此标记为已接受的答案，以便它可以帮助其他人.
Marking this as accepted answer so that it can help others.
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