mamaz

// Return image Image scaledToFillSize, perfect for thumbnailing
// taken from http://stackoverflow.com/a/17884863/1328982
+ (UIImage *)imageWithImage:(UIImage *)image scaledToFillSize:(CGSize)size
{
    CGFloat scale = MAX(size.width/image.size.width, size.height/image.size.height);
    CGFloat width = image.size.width * scale;
    CGFloat height = image.size.height * scale;
    CGRect imageRect = CGRectMake((size.width - width)/2.0f,
                                  (size.height - height)/2.0f,
                                  width,

mamaz

// Get string time duration from 2 different NSDate object

- (NSString *)getNaturalLanguageForDate:(NSDate *)date1 andDate:(NSDate *)date2 withCalendar:(NSCalendar *)sysCalendar
{
    // Get conversion to months, days, hours, minutes
    unsigned int unitFlags = NSHourCalendarUnit | NSMinuteCalendarUnit | NSDayCalendarUnit | NSMonthCalendarUnit;
    
    NSDateComponents *breakdownInfo = [sysCalendar components:unitFlags fromDate:date1  toDate:date2  options:0];
    

mamaz

// Create a generated tiny UIImage with color
// Created not by me.

- (UIImage *)imageWithColor:(UIColor *)color
{
    CGRect rect = CGRectMake(0, 0, 1, 1);
    // Create a 1 by 1 pixel context
    UIGraphicsBeginImageContextWithOptions(rect.size, NO, 0);
    [color setFill];
    UIRectFill(rect);   // Fill it with your color

mamaz

+(CGSize)getLabelSizeWordWrapWithString:(NSString*)string font:(UIFont*)font
                                     constrainedToSize:(CGSize)constrainedSize
{
    if (IOS_VERSION_LESS_THAN_7) {
        
       CGSize size = [string sizeWithFont:font
                        constrainedToSize:constrainedSize
                            lineBreakMode:NSLineBreakByWordWrapping];
        
       return size;

mamaz

  [FBSession openActiveSessionWithReadPermissions:permissions allowLoginUI:YES completionHandler:^(FBSession *session, FBSessionState status, NSError *error) {
            FBRequest *met = [FBRequest requestWithGraphPath:@"/me/feed" parameters:nil HTTPMethod:@"GET"];
            [met startWithCompletionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
                // dapetin result 
            }];
        }];

mamaz

Merge Sort

Merge sort sebenarnya ya sorting mengurutkan dari kecil ke besar dari besar ke kecil, implementasinya yg disorting itu bisa angka (int, float atau double), bisa juga karakter ASCII atau Unicode.
Bedanya sorting di sini menggunakan prinsip divide and conquer atau devide et impera :D

Untuk memahami merge sort, perlu pemahaman tentang fungsi rekursif, kalo belom tahu ya belajar dulu tentang rekursif.

Ada tiga step penting di merge sort, yaitu:

1. Sort setengah bagian kiri dari array. (rekursif)