当我尝试使用Twitter登录时，我的Android应用程序出现问题。当我登录并且Twitter已授权我的帐户访问时，它会显示下一条消息：
＆＃34;等一下！
此页面的请求表单令牌无效。有可能它已被使用或过期，因为有几个旧。请回到再次发送到这里的网站或aplicattion，可能只是一个错误。＆＃34;
这是我的代码：
AlertManager：
package com.fsvp.manocio;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
public class AlertManager {
public void showAlertDialog(Context context, String title, String message, Boolean status) {
AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setTitle(title);
builder.setMessage(message);
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
AlertDialog alertDialog = builder.create();
alertDialog.show();
}
}
连接管理器：
package com.fsvp.manocio;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
public class ConnectionManager {
private Context _context;
public ConnectionManager(Context context){
this._context = context;
}
public boolean isConnectingToInternet(){
ConnectivityManager connectivity = (ConnectivityManager) _context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity != null)
{
NetworkInfo[] info = connectivity.getAllNetworkInfo();
if (info != null)
for (int i = 0; i < info.length; i++)
if (info[i].getState() == NetworkInfo.State.CONNECTED)
{
return true;
}
}
return false;
}
}
活动主要：
package com.fsvp.manocio;
import com.fsvp.manocio.AlertManager;
import com.fsvp.manocio.ConnectionManager;
import com.fsvp.manocio.MainActivity;
import com.fsvp.manocio.R;
import android.support.v7.app.ActionBarActivity;
import android.os.AsyncTask;
import android.os.Bundle;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.User;
import twitter4j.auth.AccessToken;
import twitter4j.auth.RequestToken;
import twitter4j.conf.Configuration;
import twitter4j.conf.ConfigurationBuilder;
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.content.pm.ActivityInfo;
import android.net.Uri;
import android.text.Html;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity {
public static final String TAG = MainActivity.class.getSimpleName();
static String TWITTER_CONSUMER_KEY = "****";
static String TWITTER_CONSUMER_SECRET = "*****";
static String PREFERENCE_NAME = "twitter_oauth";
static final String PREF_KEY_ACCESS_TOKEN = "*****";
static final String PREF_KEY_ACCESS_SECRET = "*****";
static final String PREF_KEY_USER_NAME = "user_name";
static final String PREF_KEY_TWITTER_LOGIN = "isTwitterLogedIn";
static final String TWITTER_CALLBACK_URL = "https://api.twitter.com/oauth/authenticate?oauth_token=*****";
static final String URL_TWITTER_AUTH = "https://api.twitter.com/oauth/authorize";
static final String URL_TWITTER_OAUTH_VERIFIER = "https://api.twitter.com/oauth/access_token";
static final String URL_TWITTER_OAUTH_TOKEN = "https://api.twitter.com/oauth/request_token";
Button loginTwitter;
Button logoutTwitter;
TextView userName;
ImageView twitterLogo;
ProgressDialog pDialog;
private static Twitter twitter;
private static RequestToken requestToken;
private static SharedPreferences mSharedPreferences;
private ConnectionManager cm;
AlertManager alert = new AlertManager();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
cm = new ConnectionManager(getApplicationContext());
if (!cm.isConnectingToInternet()) {
alert.showAlertDialog(MainActivity.this, "Internet Connection Error",
"Please connect to working Internet connection", false);
return;
}
if(TWITTER_CONSUMER_KEY.trim().length() == 0 || TWITTER_CONSUMER_SECRET.trim().length() == 0){
alert.showAlertDialog(MainActivity.this, "Twitter oAuth tokens", "Please set your twitter oauth tokens first!", false);
return;
}
loginTwitter = (Button) findViewById(R.id.loginTwitter);
twitterLogo = (ImageView) findViewById(R.id.twitterLogo);
logoutTwitter = (Button) findViewById(R.id.logoutTwitter);
userName = (TextView) findViewById(R.id.userName);
mSharedPreferences = getApplicationContext().getSharedPreferences("MyPref", 0);
loginTwitter.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
new TwitterLogin().execute();
}
});
logoutTwitter.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
logoutFromTwitter();
}
});
if (!isTwitterLoggedInAlready()) {
Uri uri = getIntent().getData();
if (uri != null && uri.toString().startsWith(TWITTER_CALLBACK_URL)) {
String verifier = uri.getQueryParameter(URL_TWITTER_OAUTH_VERIFIER);
new TwitterAccessToken().execute(verifier);
}
}else {
String userName = mSharedPreferences.getString(PREF_KEY_USER_NAME, "");
enableTwitterStatus(userName);
}
}
private class TwitterLogin extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... params) {
// Check if already logged in
if (!isTwitterLoggedInAlready()) {
ConfigurationBuilder builder = new ConfigurationBuilder();
builder.setOAuthConsumerKey(TWITTER_CONSUMER_KEY);
builder.setOAuthConsumerSecret(TWITTER_CONSUMER_SECRET);
Configuration configuration = builder.build();
TwitterFactory factory = new TwitterFactory(configuration);
twitter = factory.getInstance();
try {
requestToken = twitter.getOAuthRequestToken(TWITTER_CALLBACK_URL);
MainActivity.this.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(requestToken.getAuthenticationURL())));
} catch (Exception e) {
e.printStackTrace();
}
}
return null;
}
@Override
protected void onPostExecute(Void result) {
if (isTwitterLoggedInAlready()) {
Toast.makeText(MainActivity.this, "Already Logged into Twitter", Toast.LENGTH_LONG).show();
}
}
}
private class TwitterAccessToken extends AsyncTask<String, Void, User> {
@Override
protected User doInBackground(String... params) {
String verifier = params[0];
AccessToken accessToken = null;
User user = null;
try {
accessToken = twitter.getOAuthAccessToken(requestToken, verifier);
Editor e = mSharedPreferences.edit();
e.putString(PREF_KEY_ACCESS_TOKEN, accessToken.getToken());
e.putString(PREF_KEY_ACCESS_SECRET, accessToken.getTokenSecret());
e.putBoolean(PREF_KEY_TWITTER_LOGIN, true);
Log.d(TAG, "Twitter OAuth Token: " + accessToken.getToken());
long userID = accessToken.getUserId();
user = twitter.showUser(userID);
e.putString(PREF_KEY_USER_NAME, user.getName());
e.commit();
} catch (TwitterException e) {
Log.e(TAG, "Twitter Login Error: " + e.getMessage());
e.printStackTrace();
}
return user;
}
@Override
protected void onPostExecute(User user) {
super.onPostExecute(user);
if (user != null) {
enableTwitterStatus(user.getName());
}
}
}
private void enableTwitterStatus(String user) {
// Hide login button
loginTwitter.setVisibility(View.GONE);
logoutTwitter.setVisibility(View.VISIBLE);
twitterLogo.setVisibility(View.GONE);
userName.setText(Html.fromHtml("<b>Welcome " + userName + "</b>"));
userName.setVisibility(View.GONE);
}
private void logoutFromTwitter() {
// Clear the shared preferences
Editor e = mSharedPreferences.edit();
e.remove(PREF_KEY_ACCESS_TOKEN);
e.remove(PREF_KEY_ACCESS_SECRET);
e.remove(PREF_KEY_TWITTER_LOGIN);
e.commit();
logoutTwitter.setVisibility(View.GONE);
userName.setText("");
userName.setVisibility(View.GONE);
loginTwitter.setVisibility(View.VISIBLE);
twitterLogo.setVisibility(View.VISIBLE);
}
private boolean isTwitterLoggedInAlready() {
// return twitter login status from Shared Preferences
return mSharedPreferences.getBoolean(PREF_KEY_TWITTER_LOGIN, false);
}
}
最后，这是我的清单：
任何人都知道解决方案吗？
谢谢和欢呼！