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+ (NSString *)stringForTimeIntervalSinceCreated:(NSDate *)dateTime serverTime:(NSDate *)serverDateTime{
  NSInteger MinInterval;
  NSInteger HourInterval;
  NSInteger DayInterval;
  NSInteger DayModules;
    
  NSInteger interval = abs((NSInteger)[dateTime timeIntervalSinceDate:serverDateTime]);
  if(interval >= 86400) {
    DayInterval  = interval/86400;
    DayModules = interval%86400;

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- (BOOL) validateEmail: (NSString *) candidate {
  NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
  NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
  return [emailTest evaluateWithObject:candidate];
}

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- (NSString*)base64forData:(NSData*)theData {
  const uint8_t* input = (const uint8_t*)[theData bytes];
	
	NSInteger length = [theData length];
	
  static char table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
	
  NSMutableData* data = [NSMutableData dataWithLength:((length + 2) / 3) * 4];
  uint8_t* output = (uint8_t*)data.mutableBytes;
	

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- (UIImage *)scaleImage:(UIImage*)image toResolution:(int)resolution {
    CGImageRef imgRef = [image CGImage];
    CGFloat width = CGImageGetWidth(imgRef);
    CGFloat height = CGImageGetHeight(imgRef);
    CGRect bounds = CGRectMake(0, 0, width, height);
    
    //if already at the minimum resolution, return the orginal image, otherwise scale
    if (width <= resolution && height <= resolution) {
        return image;
        

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// SET A - SET B ------------------------

// an array that contains many objects
NSMutableArray *arForAll =  [NSMutableArray arrayWithObjects:@"1",@"2",@"Nimit",@"sagar",@"3", nil];

// an array which is sort of subset of above array.
NSMutableArray *selForSelected = [NSMutableArray arrayWithObjects:@"Nimit",@"sagar", nil];

// create a set with array - major set.
NSMutableSet* set1 = [NSMutableSet setWithArray:arForAll];

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// sample data is as follows
//// <h1>some data</h1> <h2>some other data</h2>
// and if you wish to extract data as follows
//// some data some other data

// use following class for decoding HTML string to normal text

@interface STEntitiesConverter : NSObject <NSXMLParserDelegate>
@property (nonatomic, retain) NSMutableString* resultString;
- (NSString*)convertEntiesInString:(NSString*)s;

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- (NSMutableArray *)loadAndParseWithStringData:(NSString*)stringData hasHeaderFields:(BOOL)hasHeaderFields{
    NSArray *gcRawData = [stringData componentsSeparatedByString:@"\n"];
    
    NSArray *singleGC = [NSArray array];
    NSMutableArray *allGC = [NSMutableArray array];
    for (int i = 0; i < gcRawData.count; i++)
    {
        NSString *nextGCString = [NSString stringWithFormat:@"%@", gcRawData[i]];
        singleGC = [nextGCString componentsSeparatedByString:@","];
        NSMutableArray *arrayOfComponents = [NSMutableArray array];

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

#import <Foundation/Foundation.h>

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//
//  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"

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// this code will help you to zoom out to world-view

// step.1 create co-ordianate-span as follows
MKCoordinateSpan span = {.latitudeDelta = 180, .longitudeDelta = 360};

// step.2 crate region as follows
MKCoordinateRegion region = MKCoordinateRegionMake(CLLocationCoordinate2DMake(0.0000f, 0.0000f), span);

// step.3 zoom using region to map as follows
[self.mapView setRegion:region animated:YES];