Posting tweet with new api (1.1) in iOS - iphone

Question

Since the twitter api is changed my app no longer posts tweet. Every thing was working fine before and according to new API only request pattern should change ? All the other stuff initialising the engine and rest should be same ?
And the method for sharing should be modified, so I modified it but getting "Bad Authentication 215". All the token info and other things I got it from the authentication header generated from twitter itself:
- (void) shareOnTwitter
{
NSString *urlString = [NSString stringWithFormat:#"https://api.twitter.com/1.1/statuses/update.json"];
NSURL *url = [NSURL URLWithString:urlString];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
[request setHTTPMethod:#"POST"];
NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
[dict setValue:#"check Check CHECK" forKey:#"status"];
[dict setValue:#"-- - - - - -" forKey:#"oauth_consumer_key"];
[dict setValue:#"- - - - - - -" forKey:#"oauth_nonce"];
[dict setValue:#"- - - - - - -" forKey:#"oauth_signature"];
[dict setValue:#"HMAC-SHA1" forKey:#"oauth_signature_method"];
[dict setValue:#"- - - - - - -" forKey:#"oauth_timestamp"];
[dict setValue:#"- - - - - - -" forKey:#"oauth_token"];
[dict setValue:#"1.0" forKey:#"oauth_version"];
NSString *jsonString = [dict JSONRepresentation];
NSData *jsonData = [NSData dataWithBytes:[jsonString UTF8String] length:jsonString.length];
[request setHTTPBody:jsonData];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
NSLog(#"My request...%#", jsonString);
NSData *urlData;
NSURLResponse *response1;
NSError *error = nil;
urlData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response1 error:&error];
if(error)
{
NSLog(#"Error %#",error);
}
if(!urlData)
{
NSLog(#"No connection!");
}
NSString *responseStr = [[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSLog(#" Twitter : ... %#", responseStr);
}

Answer 1

Try below code. Its worked for me :
ACAccountStore *accountStore = [[ACAccountStore alloc] init];
ACAccountType *accountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter];
[accountStore requestAccessToAccountsWithType:accountType withCompletionHandler:^(BOOL granted, NSError *error)
{
if (granted)
{
NSArray *accounts = [accountStore accountsWithAccountType:accountType];
if (accounts.count)
{
NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
[dict setValue:#"check Check CHECK" forKey:#"status"];
NSString *retweetString = [NSString stringWithFormat:#"https://api.twitter.com/1.1/statuses/update.json"];
NSURL *retweetURL = [NSURL URLWithString:retweetString];
TWRequest *request = [[TWRequest alloc] initWithURL:retweetURL parameters:dict requestMethod:TWRequestMethodPOST];
request.account = [accounts objectAtIndex:0];
[request performRequestWithHandler:^(NSData *responseData1, NSHTTPURLResponse *urlResponse, NSError *error)
{
if (responseData1)
{
NSError *error1 = nil;
id response = [NSJSONSerialization JSONObjectWithData:responseData1 options:NSJSONReadingMutableLeaves error:&error1];
}
}];
}
}
}];

Answer 2

Twitter explained every thing in its new documentation from Authentication to loads of trivial things but no easy way for previous apps using 1.0 api, how to post a tweet or to upgrade.
Few changes to make it work (works for OAuth):
Open the MGTwitterEngine.m >
Make sure the macros are defined like this:
#define TWITTER_DOMAIN #"api.twitter.com/1.1"
#define HTTP_POST_METHOD #"POST"
#define TWITTER_SEARCH_DOMAIN #"search.twitter.com"
#define DEFAULT_CLIENT_VERSION #"1.0"
#if YAJL_AVAILABLE
#define API_FORMAT #"xml"
#import "MGTwitterStatusesYAJLParser.h"
#import "MGTwitterMessagesYAJLParser.h"
#import "MGTwitterUsersYAJLParser.h"
#import "MGTwitterMiscYAJLParser.h"
#import "MGTwitterSearchYAJLParser.h"
#else
#define API_FORMAT #"json"
#if USE_LIBXML
#import "MGTwitterStatusesLibXMLParser.h"
#import "MGTwitterMessagesLibXMLParser.h"
#import "MGTwitterUsersLibXMLParser.h"
#import "MGTwitterMiscLibXMLParser.h"
#else
#import "MGTwitterStatusesParser.h"
#import "MGTwitterUsersParser.h"
#import "MGTwitterMessagesParser.h"
#import "MGTwitterMiscParser.h"
#endif
#endif
You will be surprised that - (void) requestSucceeded: (NSString *) requestIdentifier and - (void) requestFailed: (NSString *) requestIdentifier withError: (NSError *) error will be called. But it is pretty easy to put a check that if succeeded is called than don't do anything in failed method.