twitter应用程序只认证java android与twitter4j

我试图从oauth2(仅针对应用程序的身份验证)从twitter获取用户时间轴,但结果始终为空.我没有OAUTH的经验,我已经看了几个教程和例子,但迄今没有运气.我需要在没有用户需要登录的情况下检索特定的用户时间表(在本例中为Twitter).

我有一个应用程序使用twitter API 1,我试图使我的现有代码适应新的API 1.1与oauth2应用程序唯一auth.所以代码应该工作,除了它没有从Twitter收到任何东西.如果我得到一个结果,那么它应该再次工作.

与Twitter的连接在asyncop下的函数twitterconnect中进行.

这是我的代码：

public class TwitterActivity extends Activity {

private ConfigurationBuilder builder;

// twitter consumer key and secret
static String TWITTER_CONSUMER_KEY = "**************";
static String TWITTER_CONSUMER_SECRET = "*************";

// twitter acces token and accestokensecret
static String TWITTER_ACCES_TOKEN = "************";
static String TWITTER_ACCES_TOKEN_SECRET = "************";

ArrayList<Tweet> tweets = new ArrayList<Tweet>();

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.twitter);

    new AsyncOp().execute("test");

}

 //Async class... 
  public class AsyncOp extends AsyncTask<String,Void,List<twitter4j.Status>> {

  protected List<twitter4j.Status> doInBackground(String... urls) {

  //auth with twitter  
      List<twitter4j.Status> statuses = null;
        try {
            Twitter twitter=twitterConnect();

            statuses = twitter.getUserTimeline("Twitter");

            return statuses;
        } catch (Exception ex) {

            Log.d("Main.displayTimeline","" + ex.getMessage());
        }
        return statuses;
  }


  protected void onPostExecute(List<twitter4j.Status> statuses) {

  try {

  String TWITTER="EEE MMM dd HH:mm:ss ZZZZZ yyyy"; SimpleDateFormat sf=new
  SimpleDateFormat(TWITTER,Locale.ENGLISH); sf.setLenient(true);

  for(int i=0;i<statuses.size();i++){

  twitter4j.Status stat = statuses.get(i); 
  User user=stat.getUser(); 
  Date datePosted=stat.getCreatedAt();
  String text=stat.getText();
  String name=user.getName();
  String profile_image_url=user.getProfileImageURL();
  Tweet t =new Tweet(datePosted,text,name,profile_image_url,twitterHumanFriendlyDate(datePosted));

  tweets.add(t);
  // logcat info
  Log.i("date",datePosted.toString());
  Log.i("text",text);
  Log.i("user",name);
  Log.i("userprofilepic",profile_image_url); 
  Log.i("timeofpost",twitterHumanFriendlyDate(datePosted));
  } 

  ListView listView = (ListView) findViewById(R.id.ListViewId);
  listView.setAdapter(new UserItemAdapter(TwitterActivity.this,R.layout.listitem,tweets)); 
  ProgressBar bar=(ProgressBar) findViewById(R.id.progressBar1); 
  bar.setVisibility(View.GONE); 
  } catch
  (Exception e) { e.printStackTrace(); } }

 }

public class UserItemAdapter extends ArrayAdapter<Tweet> {
    private ArrayList<Tweet> tweets;

    public UserItemAdapter(Context context,int textViewResourceId,ArrayList<Tweet> tweets) {
        super(context,textViewResourceId,tweets);
        this.tweets = tweets;
    }

    @Override
    public View getView(int position,View convertView,ViewGroup parent) {
        View v = convertView;
        if (v == null) {
            LayoutInflater vi = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            v = vi.inflate(R.layout.listitem,null);
        }

        Tweet tweet = tweets.get(position);
        if (tweet != null) {
            TextView username = (TextView) v.findViewById(R.id.username);
            TextView message = (TextView) v.findViewById(R.id.message);
            ImageView image = (ImageView) v.findViewById(R.id.avatar);
            TextView date = (TextView) v.findViewById(R.id.date);
            if (username != null) {
                username.setText(tweet.username);
            }

            if (message != null) {
                message.setText(tweet.message);
            }

            if (image != null) {
                image.setImageBitmap(getBitmap(tweet.image_url));
            }

            if (date != null) {
                date.setText(tweet.hfdate);

            }
        }
        return v;
    }
}

public Bitmap getBitmap(String bitmapUrl) {
    try {
        URL url = new URL(bitmapUrl);
        return BitmapFactory.decodeStream(url.openConnection()
                .getInputStream());
    } catch (Exception ex) {
        return null;
    }
}


// build twitter

public Twitter twitterConnect() throws Exception
{

    // setup
    builder.setOAuthConsumerKey(TWITTER_CONSUMER_KEY).setOAuthConsumerSecret(TWITTER_CONSUMER_SECRET);
    OAuth2Token token = new TwitterFactory(builder.build()).getInstance().getOAuth2Token();


 // exercise & verify
    ConfigurationBuilder cb = new ConfigurationBuilder();
    cb.setUseSSL(true);
    cb.setApplicationOnlyAuthEnabled(true);

    Twitter twitter = new TwitterFactory(cb.build()).getInstance();

    twitter.setOAuthConsumer(TWITTER_CONSUMER_KEY,TWITTER_CONSUMER_SECRET);
    twitter.setOAuth2Token(token);

    return twitter;
}

public String twitterHumanFriendlyDate(Date dateCreated) {
    // parse Twitter date
    SimpleDateFormat dateFormat = new SimpleDateFormat(
            "EEE MMM dd HH:mm:ss ZZZZZ yyyy",Locale.ENGLISH);
    dateFormat.setLenient(false);
    Date created = dateCreated;

    // today
    Date today = new Date();

    // how much time since (ms)
    Long duration = today.getTime() - created.getTime();

    long second = 1000;
    long minute = second * 60;
    long hour = minute * 60;
    long day = hour * 24;

    if (duration < second * 7) {
        return "right now";
    }

    if (duration < minute) {
        int n = (int) Math.floor(duration / second);
        return n + " seconds ago";
    }

    if (duration < minute * 2) {
        return "about 1 minute ago";
    }

    if (duration < hour) {
        int n = (int) Math.floor(duration / minute);
        return n + " minutes ago";
    }

    if (duration < hour * 2) {
        return "about 1 hour ago";
    }

    if (duration < day) {
        int n = (int) Math.floor(duration / hour);
        return n + " hours ago";
    }
    if (duration > day && duration < day * 2) {
        return "yesterday";
    }

    if (duration < day * 365) {
        int n = (int) Math.floor(duration / day);
        return n + " days ago";
    } else {
        return "over a year ago";
    }
}

}

我的问题是否是oauth方法？或者说getusertimeline？
如果任何人有一些示例代码或教程oauth2与twitter4j,将不胜感激

ConfigurationBuilder builder=new ConfigurationBuilder();
            builder.setUseSSL(true);
            builder.setApplicationOnlyAuthEnabled(true);

            // setup
            Twitter twitter = new TwitterFactory(builder.build()).getInstance();

            // exercise & verify
            twitter.setOAuthConsumer(TWITTER_CONSUMER_KEY,TWITTER_CONSUMER_SECRET);
           // OAuth2Token token = twitter.getOAuth2Token();
            twitter.getOAuth2Token();
    statuses = twitter.getUserTimeline("Twitter");