如何在Android中获取Twitter帐户详细信息

Question

我如何在Android中使用客户经理获取我尝试过的推特账号

AccountManager am = AccountManager.get(getApplicationContext());
            Account[] accts = am.getAccountsByType("com.twitter.android.oauth.token");

            Log.d("Accounts ", ""+accts.length);
            if(accts.length > 0) {
                Account acct = accts[0];
                Log.d("Account IF", ""+acct);
                am.getAuthToken(acct, "com.twitter.android.oauth.token", null, (Activity) getApplicationContext(), new AccountManagerCallback<Bundle>() {

                @Override
                public void run(AccountManagerFuture<Bundle> arg0) {
                    try {
                                 Bundle b = arg0.getResult();  
                                 Log.e("TrendDroid", "THIS AUTHTOKEN: " + b.getString(AccountManager.KEY_AUTHTOKEN));  
                            } catch (Exception e) {  
                                 Log.e("TrendDroid", "EXCEPTION@AUTHTOKEN");  
                            }  
                }}, null);

但我的行为长度为零如何解决这个问题以获取推特账号