STTimeline_twitter_api.m: Header-file for fetching tweets from twitter which works for iOS 7 + iOS 6 + iOS 5

STTimeline_twitter_api.m

//
//  timeline_twitter_api.m
//  Twitter demo
//
//  Created by SagarRK on 09/10/13.
//  Copyright (c) 2013 http://sugartin.info . All rights reserved.
//


#import "timeline_twitter_api.h"
#import <Twitter/Twitter.h>
#import <Accounts/Accounts.h>

#define SYSTEM_VERSION                              [[[[[UIDevice currentDevice] systemVersion] componentsSeparatedByString:@"."] objectAtIndex:0] integerValue]

@interface timeline_twitter_api ()
@property (nonatomic, strong) NSString *strTwitterName;
@end

@implementation timeline_twitter_api

- (void)accountStore:(ACAccountStore *)accountStore accountType:(ACAccountType *)accountType granted:(BOOL)granted error:(NSError*)error recentTweetsCount:(NSUInteger)count{

    NSString * url1 = [NSString stringWithFormat:@"https://api.twitter.com/1.1/statuses/user_timeline.json?screen_name=%@&count=%i",self.strTwitterName,count];
    __block NSMutableArray *tweetsArray=[NSMutableArray array];
    __block timeline_twitter_api *obj = self;
    if (granted) {
        NSArray *accounts = [accountStore accountsWithAccountType:accountType];
        // Check if the users has setup at least one Twitter account
        if (accounts.count > 0) {
            ACAccount *twitterAccount = [accounts objectAtIndex:0];
            if (SYSTEM_VERSION<6 && SYSTEM_VERSION>=5) {
                TWRequest *postRequest = [[TWRequest alloc] initWithURL:[NSURL URLWithString:url1] parameters:nil requestMethod:TWRequestMethodGET];
                postRequest.account = twitterAccount;
                // Perform the request created above and create a handler block to handle the response.
                [postRequest performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) {
                    NSArray *publicTimeline;
                    NSError *jsonParsingError = nil;
                    if (responseData) {
                        publicTimeline = [NSJSONSerialization JSONObjectWithData:responseData options:0 error:&jsonParsingError];
                    }
                    if ([publicTimeline isKindOfClass:[NSArray class]]) {
                        for (NSDictionary *dOfTweet in publicTimeline) {
                            [tweetsArray addObject:[dOfTweet valueForKey:@"text"]];
                        }
                        NSLog(@"tweetsArray is %@",tweetsArray);
                        [obj performSelectorOnMainThread:@selector(api_twitter_successed:) withObject:tweetsArray waitUntilDone:NO];
                        //[obj.delegate timeline_twitter_api_did_complete:[NSArray arrayWithArray:tweetsArray]];
                    }
                }];
            } else {
                SLRequest *twitterInfoRequest = [SLRequest requestForServiceType:SLServiceTypeTwitter requestMethod:SLRequestMethodGET URL:[NSURL URLWithString:@"https://api.twitter.com/1.1/statuses/user_timeline.json"] parameters:
                                                 [NSDictionary dictionaryWithObjectsAndKeys:self.strTwitterName,@"screen_name",[NSString stringWithFormat:@"%i",count],@"count",nil]];
                [twitterInfoRequest setAccount:twitterAccount];
                // Making the request
                [twitterInfoRequest performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) {
                    NSArray *TWData = [NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingMutableLeaves error:&error];
                    for (NSDictionary *dOfTweet in TWData) {
                        [tweetsArray addObject:[dOfTweet valueForKey:@"text"]];
                    }
                    [obj performSelectorOnMainThread:@selector(api_twitter_successed:) withObject:tweetsArray waitUntilDone:NO];
                }];
            }
        } else {
            NSError *error = [NSError errorWithDomain:@"Twitter access denied" code:1 userInfo:nil];
            [obj performSelectorOnMainThread:@selector(timeline_twitter_api_did_fail:) withObject:error waitUntilDone:NO];
        }
    } else {
        NSError *error = [NSError errorWithDomain:@"Twitter access denied" code:1 userInfo:nil];
        [obj performSelectorOnMainThread:@selector(timeline_twitter_api_did_fail:) withObject:error waitUntilDone:NO];
    }
}

- (void)api_twitter_successed:(NSArray*)arrayOfTweets {
    [self.delegate timeline_twitter_api_did_complete:[NSArray arrayWithArray:arrayOfTweets]];
}

- (void)timeline_twitter_api_did_fail:(NSError*)error {
    [self.delegate timeline_twitter_api_did_fail:error];
}

- (void)getTweetsFortwitterID:(NSString *)twitterName recentTweetsCount:(NSUInteger)count{
    self.strTwitterName = twitterName;
    ACAccountStore *accountStore = [[ACAccountStore alloc] init];
    ACAccountType *accountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter];
    if (SYSTEM_VERSION<6 && SYSTEM_VERSION>=5) {
        [accountStore requestAccessToAccountsWithType:accountType withCompletionHandler:^(BOOL granted,NSError *error){
            [self accountStore:accountStore accountType:accountType granted:granted error:error recentTweetsCount:count];
        }];
    } else {
        [accountStore requestAccessToAccountsWithType:accountType options:nil completion:^(BOOL granted, NSError *error){
            [self accountStore:accountStore accountType:accountType granted:granted error:error recentTweetsCount:count];
        }];
    }
}

@end