I have a button click to login facebook,but sometimes this code can\'t work. throw exception:Caused by:
com.facebook.FacebookException: Cannot pass a publis
You can't call openForPublish unless your app has already been granted basic permissions first.
Separate out your PERMISSIONS list into PERMISSIONS_READ and PERMISSIONS_PUBLISH, and put "email" into the PUBLISH side. Then call openForRead, and then requestNewPublishPermissions when your session is open.
Here is the thing you should do, it helped me in getting my requirement 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);
}
}
});
}
}
});
}
}
Try the above code, it is just what you wanted to have.