I used
Twitter.getSessionManager().clearActiveSession();
This does not work,next time when i logIn using twitter, it opens the dialog with browser,takes previous login and just asks "Allow app to fetch your data?", but doesn't ask for username and password.Any help will be appreciated.
I finally found a solution to this situation.
Accidentally, I found a method in Twitter SDK Kit for Android
CookieSyncManager.createInstance(this);
CookieManager cookieManager = CookieManager.getInstance();
cookieManager.removeSessionCookie();
Twitter.getSessionManager().clearActiveSession();
Twitter.logOut();
This was very simple, it took me about half an hour to find it.
For version 3.0 and above
CookieSyncManager.createInstance(this);
CookieManager cookieManager = CookieManager.getInstance();
cookieManager.removeSessionCookie();
TwitterCore.getInstance().getSessionManager().clearActiveSession()