priore

// Convert property names in a text string with their value
object = user defined object

    // your text below with the property names enclosed in square brackets
    NSString *result = @"Your text here with macros eg. [name], [value], [description]";
    NSRegularExpression *regEx = [NSRegularExpression regularExpressionWithPattern:@"\\[(.*?)\\]" options:0 error:NULL];
    NSArray *matches = [regEx matchesInString:result options:0 range:NSMakeRange(0, [text length])];
    if (matches) {
        for (NSTextCheckingResult *match in matches) {
            NSString *macro = [[[text substringWithRange:match.range] stringByReplacingOccurrencesOfString:@"[" withString:@""] stringByReplacingOccurrencesOfString:@"]" withString:@""];

priore

#import <CommonCrypto/CommonDigest.h>

@implementation NSObject (Utility)

- (NSString*)uniqueID
{
    // nsobject --> nsdata -- > md5 hash --> hex string (30 chars)
    NSData *data = [NSKeyedArchiver archivedDataWithRootObject:self];
    unsigned char result[CC_MD5_DIGEST_LENGTH];
    CC_MD5([data bytes], (uint32_t)[data length], result);

priore

static inline CGSize screenSize()
{
    CGSize screenSize = [UIScreen mainScreen].bounds.size;
    if ((NSFoundationVersionNumber <= NSFoundationVersionNumber_iOS_7_1) && UIInterfaceOrientationIsLandscape(getOrientation())) {
        return CGSizeMake(screenSize.height, screenSize.width);
    } else {
        return screenSize;
    }
}

priore

// How to check the end of an audio
AVAsset *asset = [AVURLAsset URLAssetWithURL:your-url options:nil];
AVPlayerItem *anItem = [AVPlayerItem playerItemWithAsset:asset];
self.player = [AVPlayer playerWithPlayerItem:anItem];
    
    __weak typeof(self) wself = self;
    CMTime interval = CMTimeMake(1, 1);
    id observer = [self.soundPlayer addPeriodicTimeObserverForInterval:interval queue:dispatch_get_main_queue() usingBlock:^(CMTime time) {
        // controlla la fine dell'audio
        CMTime duration = CMTimeConvertScale(wself.player.currentItem.duration, wself.player.currentTime.timescale, kCMTimeRoundingMethod_Default);

priore

// How to get duration (HH:MM:SS) from AVAudioPlayer
AVAudioPlayer *audioPlayer =  [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL URLWithString:@"you-url-sreaming"] error:nil];
[audioPlayer prepareToPlay];
CMTime duration = [[[audioPlayer currentItem] asset] duration];
float seconds = CMTimeGetSeconds(duration);
NSLog("Duration : %@", [NSString stringWithFormat:@"%02d:%02d:%02d", (int)((int)(seconds)) / 3600, (int)((int)(seconds)) / 60, (int)((int)(seconds)) % 60]);

priore

//  fix the wrong value of sizeThatFits in a UITableViewCell for iOS8
//  UITableViewCell+iOS8.h
#import <UIKit/UIKit.h>

@interface UITableViewCell (iOS8)

- (CGSize)sizeThatFitsiOS8:(CGSize)size;

@end

priore

#include <sys/socket.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <sys/types.h>
#include <ifaddrs.h>
#include <net/if.h>

- (NSArray *)localIPAddresses
{
    NSMutableArray *ipAddresses = [NSMutableArray array] ;

priore

static NSDictionary *settings;

+ (id)settingsValueForKeyPath:(NSString*)keyPath
{
    if (settings == nil) {
        NSString *plistPath = [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent:@"settings.plist"];
        settings = [[NSDictionary alloc] initWithContentsOfFile:plistPath];
    }
    
    return [settings valueForKeyPath:keyPath];

priore

// Loading the XIB dependent on the device
//
// 1. create your viewcontroller's named MyViewController~ipad.xib and MyViewController~iphone.xib
//
// 2. inizialize your class with MyViewController myvc = [[MyViewController alloc] initWithDefaultNib];
//

- (id)initWithDefaultNib
{
    NSString *nibName =[[[[[NSBundle mainBundle] pathForResource: NSStringFromClass([self class]) ofType:@"nib"] componentsSeparatedByString:@"/"] lastObject] stringByReplacingOccurrencesOfString:@".nib" withString:@""];

priore

// NSObject set property values with NSDictionary
- (void)setValuesWithDictionary:(NSDictionary *)dict
{
    if (dict != nil) {
        [dict enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
            NSString *setPropName = [NSString stringWithFormat:@"set%@%@:", [[key substringWithRange:(NSRange){0, 1}] uppercaseString], [key substringFromIndex:1]];
            if ([self respondsToSelector:NSSelectorFromString(setPropName)])
                [self setValue:obj forKey:key];
        }];
    }