I am developing an android application and want to integrate Twitter.
What I understand is if on user's device, official android Twitter app is installed then we can authenticate using account manager as mentined here.. and if not installed then show twitter login web page.
Is my understanding correct?
Now authenticating using twitter web login page is working fine. But how do I login using account manager?
Using AccountsType as "com.twitter.android.auth.login" I got token and token secret using account manager from •com.twitter.android.oauth.token •com.twitter.android.oauth.token.secret
I am using Twitter4J, and authenticating with my CONSUMER_KEY & CONSUMER_SECRET along with recvd. tokens. but authentication always fails.
CONSUMER_KEY & CONSUMER_SECRET are the keys I got when I registered the app at twitter... but I dont understand how can I use these keys with Official Android Twitter app authentication?
Pls. let me know Thanks
Here is my code
public class TwitterAuthentication {
private static final String TAG = "TwitterAuthentication";
private static final int MSG_GOT_AUTH_TOKEN = 100;
private static final int MSG_GOT_AUTH_SECRET = 101;
private static final int MSG_NO_AUT_TOKEN_RECVD = 102;
public static Twitter mTwitter = null;
private Activity mActivity = null;
private SharedPreferences prefs;
private MessageHandler handler = new MessageHandler();
public static boolean bAuthenticationDone = false;
public TwitterAuthentication(Activity activity){
mActivity = activity;
prefs = PreferenceManager.getDefaultSharedPreferences(mActivity);
if (null == mTwitter){
mTwitter = new TwitterFactory().getInstance();;
mTwitter.setOAuthConsumer(Constant.CONSUMER_KEY, Constant.CONSUMER_SECRET);
bAuthenticationDone = false;
}
}
public void LoginTwitter(){
if (Constants.DEBUG)Log.d(TAG,"LoginTwitter");
if (bAuthenticationDone){
TwitterSessionEvents.onLoginSuccess();
}
else if (!isSessionValid()){
AuthTwitter();
}
else{
bAuthenticationDone = true;
TwitterSessionEvents.onLoginSuccess();
}
}
public boolean isSessionValid(){
boolean ret = false;
if (null != prefs && null != mTwitter){
String token = prefs.getString(Constant.OAUTH_TOKEN, "");
String secret = prefs.getString(Constant.OAUTH_TOKEN_SECRET, "");
if (null != token && null != secret && token.length()>0 && secret.length()>0){
AccessToken a = new AccessToken(token,secret);
mTwitter.setOAuthAccessToken(a);
try {
mTwitter.getAccountSettings();
keys.User_Id = mTwitter.getScreenName();
ret = true;
} catch (TwitterException e) {
ret = false;
}
}
}
return ret;
}
public void AuthTwitter(){
// First check if Account manager has valid token
// Result of this is send in MSG
CheckAccManagerForTwitter();
}
public Twitter getTwitter(){
return mTwitter;
}
private boolean CheckAccManagerForTwitter(){
AccountManager am = AccountManager.get(mActivity);
Account[] accts = am.getAccountsByType("com.twitter.android.auth.login");
if(accts.length > 0) {
Account acct = accts[0];
am.getAuthToken(acct, "com.twitter.android.oauth.token", null, mActivity, new AccountManagerCallback<Bundle>() {
@Override
public void run(AccountManagerFuture<Bundle> arg0) {
try {
Bundle b = arg0.getResult();
String token = b.getString(AccountManager.KEY_AUTHTOKEN);
String userName = b.getString(AccountManager.KEY_ACCOUNT_NAME);
handler.sendMessage(handler.obtainMessage(MSG_GOT_AUTH_TOKEN, token));
}
catch (Exception e) {
Log.e(TAG, "EXCEPTION@AUTHTOKEN");
handler.sendEmptyMessage(MSG_NO_AUT_TOKEN_RECVD);
}
}}, null);
am.getAuthToken(acct, "com.twitter.android.oauth.token.secret", null, mActivity, new AccountManagerCallback<Bundle>() {
@Override
public void run(AccountManagerFuture<Bundle> arg0) {
try {
Bundle b = arg0.getResult();
String secret = b.getString(AccountManager.KEY_AUTHTOKEN);
handler.sendMessage(handler.obtainMessage(MSG_GOT_AUTH_SECRET,secret));
}
catch (Exception e) {
Log.e(TAG, "EXCEPTION@AUTHTOKEN");
handler.sendEmptyMessage(MSG_NO_AUT_TOKEN_RECVD);
}
}}, null);
//
}
else{
// No twitter account found in Account Manager
Log.e(TAG, "No Twitter account in Account manager");
handler.sendEmptyMessage(MSG_NO_AUT_TOKEN_RECVD);
}
return true;
}
class MessageHandler extends Handler {
String token = null;
String secret = null;
@Override
public void handleMessage(Message msg) {
if (msg.what == MSG_GOT_AUTH_TOKEN | msg.what ==MSG_GOT_AUTH_SECRET){
if (msg.what == MSG_GOT_AUTH_TOKEN){
token = (String)msg.obj;
}
else if (msg.what == MSG_GOT_AUTH_SECRET){
secret = (String)msg.obj;
}
if (null != token && null != secret){
AccessToken accesstoken = new AccessToken(token,secret);
mTwitter.setOAuthAccessToken(accesstoken);
try {
mTwitter.getAccountSettings();
keys.User_Id = mTwitter.getScreenName();
} catch (Exception e) {
// That means Authentication Failed
// So fall back to web login
Intent i = new Intent(mActivity.getApplicationContext(), PrepareRequestTokenActivity.class);
mActivity.startActivity(i);
}
}
}
else if (msg.what == MSG_NO_AUT_TOKEN_RECVD){
// That means There is no twiter account with Account Manager
// So fall back to web login
Intent i = new Intent(mActivity.getApplicationContext(), PrepareRequestTokenActivity.class);
mActivity.startActivity(i);
}
}
}
public void LogoutTwiter(){
}
}