继上面一片介绍了FaceBook的登录和分享，现在再来实现Twitter的登录和分享。
着吏要注意 申请之后的设置Setting 里面去设置获取相关的Key permissions设置读写的权限
提别注意一个callback url，回调的链接。
3. OK我们现在可以开始写代码了
本人代码中有四个类（前提 导入了所需的jar包）
TwitterApp 管理
TwitterDialog窗口显示
TwitterSession数据存储
TwitterTest Activity
public class TwitterApp {
private Twitter mTwitter;
private TwitterSession mSession;
private AccessToken mAccessToken;
private CommonsHttpOAuthConsumer mHttpOauthConsumer;
private OAuthProvider mHttpOauthprovider;
private String mConsumerKey;
private String mSecretKey;
private ProgressDialog mProgressDlg;
private TwDialogListener mListener;
private Context context;
public static final String CALLBACK_URL = "twitterapp://connect";
private static final String TAG = "TwitterApp";
public TwitterApp(Context context, String consumerKey, String secretKey) {
this.context = context;
mTwitter = new TwitterFactory().getInstance();
mSession = new TwitterSession(context);
mProgressDlg = new ProgressDialog(context);
mProgressDlg.requestWindowFeature(Window.FEATURE_NO_TITLE);
mConsumerKey = consumerKey;
mSecretKey = secretKey;
mHttpOauthConsumer = new CommonsHttpOAuthConsumer(mConsumerKey, mSecretKey);
mHttpOauthprovider = new DefaultOAuthProvider("https://api.twitter.com/oauth/request_token",
"https://api.twitter.com/oauth/access_token",
"https://api.twitter.com/oauth/authorize");
mAccessToken = mSession.getAccessToken();
configureToken();
}
public void setListener(TwDialogListener listener) {
mListener = listener;
}
@SuppressWarnings("deprecation")
private void configureToken() {
if (mAccessToken != null) {
mTwitter.setOAuthConsumer(mConsumerKey, mSecretKey);
mTwitter.setOAuthAccessToken(mAccessToken);
}
}
public boolean hasAccessToken() {
return (mAccessToken == null) ? false : true;
}
public void resetAccessToken() {
if (mAccessToken != null) {
mSession.resetAccessToken();
mAccessToken = null;
}
}
public String getUsername() {
return mSession.getUsername();
}
public void updateStatus(String status) throws Exception {
try {
mTwitter.updateStatus(status);
} catch (TwitterException e) {
throw e;
}
}
public void authorize() {
mProgressDlg.setMessage("Initializing ...");
mProgressDlg.show();
new Thread() {
@Override
public void run() {
String authUrl = "";
int what = 1;
try {
authUrl = mHttpOauthprovider.retrieveRequestToken(mHttpOauthConsumer, CALLBACK_URL);
what = 0;
Log.d(TAG, "Request token url " + authUrl);
} catch (Exception e) {
Log.d(TAG, "Failed to get request token");
e.printStackTrace();
}
mHandler.sendMessage(mHandler.obtainMessage(what, 1, 0, authUrl));
}
}.start();
}
public void processToken(String callbackUrl) {
mProgressDlg.setMessage("Finalizing ...");
mProgressDlg.show();
final String verifier = getVerifier(callbackUrl);
new Thread() {
@Override
public void run() {
int what = 1;
try {
mHttpOauthprovider.retrieveAccessToken(mHttpOauthConsumer, verifier);
mAccessToken = new AccessToken(mHttpOauthConsumer.getToken(), mHttpOauthConsumer.getTokenSecret());
configureToken();
User user = mTwitter.verifyCredentials();
mSession.storeAccessToken(mAccessToken, user.getName());
what = 0;
} catch (Exception e){
Log.d(TAG, "Error getting access token");
e.printStackTrace();
}
mHandler.sendMessage(mHandler.obtainMessage(what, 2, 0));
}
}.start();
}
private String getVerifier(String callbackUrl) {
String verifier = "";
try {
callbackUrl = callbackUrl.replace("twitterapp", "http");
URL url = new URL(callbackUrl);
String query = url.getQuery();
String array[] = query.split("&");
for (String parameter : array) {
String v[] = parameter.split("=");
if (URLDecoder.decode(v[0]).equals(oauth.signpost.OAuth.OAUTH_VERIFIER)) {
verifier = URLDecoder.decode(v[1]);
break;
}
}
} catch (MalformedURLException e) {
e.printStackTrace();
}
return verifier;
}
private void showLoginDialog(String url) {
final TwDialogListener listener = new TwDialogListener() {
@Override
public void onComplete(String value) {
processToken(value);
}
@Override
public void onError(String value) {
mListener.onError("Failed opening authorization page");
}
};
new TwitterDialog(context, url, listener).show();
}
private Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
mProgressDlg.dismiss();
if (msg.what == 1) {
if (msg.arg1 == 1)
mListener.onError("Error getting request token");
else
mListener.onError("Error getting access token");
} else {
if (msg.arg1 == 1)
showLoginDialog((String) msg.obj);
else
mListener.onComplete("");
}
}
};
public interface TwDialogListener {
public void onComplete(String value);
public void onError(String value);
}
}
public class TwitterDialog extends Dialog {
static final float[] DIMENSIONS_LANDSCAPE = {460, 260};
static final float[] DIMENSIONS_PORTRAIT = {280, 420};
static final FrameLayout.LayoutParams FILL = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT,
ViewGroup.LayoutParams.FILL_PARENT);
static final int MARGIN = 4;
static final int PADDING = 2;
private String mUrl;
private TwDialogListener mListener;
private ProgressDialog mSpinner;
private WebView mWebView;
private LinearLayout mContent;
private TextView mTitle;
private static final String TAG = "Twitter-WebView";
public TwitterDialog(Context context, String url, TwDialogListener listener) {
super(context);
mUrl = url;
mListener = listener;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mSpinner = new ProgressDialog(getContext());
mSpinner.requestWindowFeature(Window.FEATURE_NO_TITLE);
mSpinner.setMessage("Loading...");
mContent = new LinearLayout(getContext());
mContent.setOrientation(LinearLayout.VERTICAL);
setUpTitle();
setUpWebView();
Display display = getWindow().getWindowManager().getDefaultDisplay();
final float scale = getContext().getResources().getDisplayMetrics().density;
float[] dimensions = (display.getWidth() < display.getHeight()) ? DIMENSIONS_PORTRAIT : DIMENSIONS_LANDSCAPE;
addContentView(mContent, new FrameLayout.LayoutParams((int) (dimensions[0] * scale + 0.5f),
(int) (dimensions[1] * scale + 0.5f)));
}
private void setUpTitle() {
requestWindowFeature(Window.FEATURE_NO_TITLE);
Drawable icon = getContext().getResources().getDrawable(R.drawable.com_facebook_logo);
mTitle = new TextView(getContext());
mTitle.setText("Twitter");
mTitle.setTextColor(Color.WHITE);
mTitle.setTypeface(Typeface.DEFAULT_BOLD);
mTitle.setBackgroundColor(0xFFbbd7e9);
mTitle.setPadding(MARGIN + PADDING, MARGIN, MARGIN, MARGIN);
mTitle.setCompoundDrawablePadding(MARGIN + PADDING);
mTitle.setCompoundDrawablesWithIntrinsicBounds(icon, null, null, null);
mContent.addView(mTitle);
}
private void setUpWebView() {
mWebView = new WebView(getContext());
mWebView.setVerticalScrollBarEnabled(false);
mWebView.setHorizontalScrollBarEnabled(false);
mWebView.setWebViewClient(new TwitterWebViewClient());
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl(mUrl);
mWebView.setLayoutParams(FILL);
mContent.addView(mWebView);
}
private class TwitterWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
Log.d(TAG, "Redirecting URL " + url);
if (url.startsWith(TwitterApp.CALLBACK_URL)) {
mListener.onComplete(url);
TwitterDialog.this.dismiss();
return true;
} else if (url.startsWith("authorize")) {
return false;
}
return true;
}
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Log.d(TAG, "Page error: " + description);
super.onReceivedError(view, errorCode, description, failingUrl);
mListener.onError(description);
TwitterDialog.this.dismiss();
}
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
Log.d(TAG, "Loading URL: " + url);
super.onPageStarted(view, url, favicon);
mSpinner.show();
}
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
String title = mWebView.getTitle();
if (title != null && title.length() > 0) {
mTitle.setText(title);
}
mSpinner.dismiss();
}
}
}
public class TwitterSession {
private SharedPreferences sharedPref;
private Editor editor;
private static final String TWEET_AUTH_KEY = "auth_key";
private static final String TWEET_AUTH_SECRET_KEY = "auth_secret_key";
private static final String TWEET_USER_NAME = "user_name";
private static final String SHARED = "Twitter_Preferences";
public TwitterSession(Context context) {
sharedPref = context.getSharedPreferences(SHARED, Context.MODE_PRIVATE);
editor = sharedPref.edit();
}
public void storeAccessToken(AccessToken accessToken, String username) {
editor.putString(TWEET_AUTH_KEY, accessToken.getToken());
editor.putString(TWEET_AUTH_SECRET_KEY, accessToken.getTokenSecret());
editor.putString(TWEET_USER_NAME, username);
editor.commit();
}
public void resetAccessToken() {
editor.putString(TWEET_AUTH_KEY, null);
editor.putString(TWEET_AUTH_SECRET_KEY, null);
editor.putString(TWEET_USER_NAME, null);
editor.commit();
}
public String getUsername() {
return sharedPref.getString(TWEET_USER_NAME, "");
}
public AccessToken getAccessToken() {
String token = sharedPref.getString(TWEET_AUTH_KEY, null);
String tokenSecret = sharedPref.getString(TWEET_AUTH_SECRET_KEY, null);
if (token != null && tokenSecret != null)
return new AccessToken(token, tokenSecret);
else
return null;
}
}
public class TwitterTest extends Activity implements OnClickListener{
private static final String twitter_consumer_key = "i5wpPPqwllrdx2pFr0LdOEXhB";
private static final String twitter_secret_key = "0vAmYSPNP8TI3WSEjcqUrbe50y62JXWbJBDaWco69jpzBZZv7W";
private TwitterApp mTwitter;
private Button m_twitter_login;
private Button m_twitter_share;
private Button m_twitter_login_out;
//Share
private ProgressDialog pDialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.twitter);
initLayout();
mTwitter = new TwitterApp(this, twitter_consumer_key,twitter_secret_key);
mTwitter.setListener(mTwLoginDialogListener);
}
private void initLayout(){
m_twitter_login = (Button) this.findViewById(R.id.twitter_login);
m_twitter_share = (Button) this.findViewById(R.id.twitter_share);
m_twitter_login_out = (Button) this.findViewById(R.id.twitter_login_out);
m_twitter_login.setOnClickListener(this);
m_twitter_share.setOnClickListener(this);
m_twitter_login_out.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.twitter_login:
doLogin();
break;
case R.id.twitter_share:
if(mTwitter.hasAccessToken()){
doShare();
}else{
doLogin();
}
break;
case R.id.twitter_login_out:
doLoginOut();
break;
default:
break;
}
}
private void doLogin() {
if (mTwitter.hasAccessToken()) {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Delete current Twitter connection?")
.setCancelable(false)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
mTwitter.resetAccessToken();
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
final AlertDialog alert = builder.create();
alert.show();
} else {
mTwitter.authorize();
}
}
private void doShare(){
new updateTwitterStatus().execute("123");
}
private void doLoginOut(){
mTwitter.resetAccessToken();
}
//登录的回调函数
private final TwDialogListener mTwLoginDialogListener = new TwDialogListener() {
@Override
public void onComplete(String value) {
String username = mTwitter.getUsername();
username = (username.equals("")) ? "No Name" : username;
Toast.makeText(TwitterTest.this, "Connected to Twitter as " + username, Toast.LENGTH_LONG).show();
TwitterSession mSession = new TwitterSession(TwitterTest.this);
AccessToken mAccessToken = mSession.getAccessToken();
Toast.makeText(TwitterTest.this, "mAccessToken " + mAccessToken.getToken(), Toast.LENGTH_LONG).show();
}
@Override
public void onError(String value) {
Toast.makeText(TwitterTest.this, "Twitter connection failed", Toast.LENGTH_LONG).show();
}
};
class updateTwitterStatus extends AsyncTask<String, String, String> {
private String shareStatu= null;//分享成功与否
/**
* Before starting background thread Show Progress Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(TwitterTest.this);
pDialog.setMessage("Updating to twitter...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
/**
* getting Places JSON
* */
protected String doInBackground(String... args) {
Log.d("Tweet Text", "> " + args[0]);
String status = args[0];
try {
ConfigurationBuilder builder = new ConfigurationBuilder();
builder.setOAuthConsumerKey(twitter_consumer_key);
builder.setOAuthConsumerSecret(twitter_secret_key);
TwitterSession mSession = new TwitterSession(TwitterTest.this);
AccessToken mAccessToken = mSession.getAccessToken();
// Access Token Access Token Secret
String access_token = mAccessToken.getToken();
String access_token_secret = mAccessToken.getTokenSecret();
AccessToken accessToken = new AccessToken(access_token, access_token_secret);
Twitter twitter = new TwitterFactory(builder.build()).getInstance(accessToken);
// Update status
StatusUpdate mstatus = new StatusUpdate(status);
mstatus.setMedia(new File("/sdcard/tencent/QQ_Images/99931af6b37591d57906.JPG"));
twitter4j.Status response = twitter.updateStatus(mstatus);
shareStatu = "suc";
Log.d("Status", "> " + response.getText());
} catch (TwitterException e) {
// Error in updating status
Log.d("Twitter Update Error", e.getMessage());
}
return shareStatu;
}
/**
* After completing background task Dismiss the progress dialog and show
* the data in UI Always use runOnUiThread(new Runnable()) to update UI
* from background thread, otherwise you will get error
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog after getting all products
pDialog.dismiss();
// updating UI from Background Thread
if(shareStatu == null){
Toast.makeText(TwitterTest.this, "Fail", Toast.LENGTH_LONG).show();
}else{
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(),
"Status tweeted successfully", Toast.LENGTH_SHORT)
.show();
}
});
}
}
}
}
doLogin();doShare();doLoginOut();分别是相应的操作！网页授权
配置文件 没特别说明。联网是必须得。
注意你得twitter_consumer_key和twitter_secret_key是从官网获取得到，
TwitterApp中的url 需要是最新的mHttpOauthprovider = new DefaultOAuthProvider("https://api.twitter.com/oauth/request_token",
"https://api.twitter.com/oauth/access_token",
"https://api.twitter.com/oauth/authorize");
错误提示 
这个问题困扰了很长时间。后来查看资料有人说是
这不是程序的问题，也不是twitter4j的问题，这是twitter安全机制的问题，你可以在Web端试一下，在一段时间内你是不可以重复推送相同内容的推文的。
好吧 经过一分钟之后操作就没有相应的提示了！
以上代码 未整理，个人Demo，烦乱之处请谅解。如有更方便和更好的方法，可以学习！
成功分享