通过输入方式在Android上进行微博OAuth登录 - 安卓报错

public class Weibo extends WeiboSupport implements java.io.Serializable {  
    public static String CONSUMER_KEY = "41199486xx";  
    public static String CONSUMER_SECRET = "d589738xx1e0026xxce22xx84cf87dxx"; 

<EditText android:layout_height="wrap_content"  
   android:text=""  
   android:layout_width="260dip"  
   android:id="@+id/account" />  
<EditText android:layout_height="wrap_content"  
   android:text=""  
   android:layout_width="260dip"  
   android:id="@+id/password" />   
<Button android:layout_height="wrap_content"  
   android:text="auth"  
   android:layout_width="wrap_content"  
   android:id="@+id/authButton" />  
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"  
   androidandroid:layout_width="fill_parent"android:layout_height="fill_parent"  
   androidandroid:scrollbars="vertical"android:fadingEdge="vertical">  
   <TextView android:layout_width="fill_parent"  
       androidandroid:layout_height="wrap_content"android:id="@+id/authResult"  
       android:paddingTop="5dip"/>  
</ScrollView>

public class OAuthVerifier extends OAuthToken {  
    private static final long serialVersionUID = -8344528374458826291L;  
    private String verifier;  
     
    OAuthVerifier(Response res) throws WeiboException {  
        this(res.asString());  
    }  
   
    OAuthVerifier(String str) {  
        super(str);  
        String[] results = str.split(":");  
        if(results.length >= 3) {  
        verifier =results[2].substring(1, 7);  
        } else {  
        verifier = "";  
        }  
    }  
   
    public OAuthVerifier(String token,String tokenSecret) {  
        super(token, tokenSecret);  
    }  
   
    /**  
     *  
     * @return verifier  
     * @since Weibo4android  
     */  
   
    public String getVerifier() {  
       return verifier;  
    }  
}

/* 初始化界面元素 */  
ButtonbeginOuathBtn =  (Button)findViewById(R.id.authButton);  
final EditText accountInput= (EditText) findViewById(R.id.account);  
final EditTextpasswordInput = (EditText) findViewById(R.id.password);          
  
/* oauth认证按钮的点击事件 */  
beginOuathBtn.setOnClickListener(newButton.OnClickListener()  
    {  
        public void onClick( View v )  
        {  
          Weiboweibo = OAuthConstant.getInstance().getWeibo(); // init weibo object  
          RequestTokenrequestToken;  
          try {  
              requestToken = weibo.getOAuthRequestToken();  
               
            OAuthConstant.getInstance().setRequestToken(requestToken);  
             
              String username =accountInput.getText().toString();  
              String password =passwordInput.getText().toString();                  
  
              OAuthVerifier oauthVerifier = weibo.getOauthVerifier(username,password); // get verifier  
               
              String verifier = oauthVerifier.getVerifier();  
              AccessToken accessToken =requestToken.getAccessToken(verifier); // get access token  
  
              OAuthConstant.getInstance().setAccessToken(accessToken);                   
       TextView textView = (TextView) findViewById(R.id.authResult);  
              textView.setText("得到AccessToken的key和Secret,可以使用这两个参数进行授权登录了.\n Access token:\n"  
                     + accessToken.getToken() + "\n Access token secret:\n" + accessToken.getTokenSecret());                 
  
          } catch (WeiboException e) {  
              e.printStackTrace();  
          }  
        }  
   });  

    public OAuthVerifiergetOAuthVerifier(Stringusername, Stringpassword) throws WeiboException {  
        return http.getOAuthVerifier(username,password);  
    }  

private OAuthVerifier oauthVerifier = null;  
  
public OAuthVerifiergetOAuthVerifier(String username, String password) throws WeiboException {  
this.oauthVerifier = newOAuthVerifier(httpRequest(authorizationURL,  
            new PostParameter[]{new PostParameter("userId", username), new PostParameter("passwd", password), new PostParameter("oauth_callback", "json")}  
        ,true)); // callback = json isimportant!  
  
return (OAuthVerifier) this.oauthVerifier;  
}