Eridana

import UIKit

class ExpandableObject {
    
    public var subItems = [ExpandableObject]()
    public var title: String?
    public var isExpanded: Bool = false
    public var isChild: Bool = false
    public var cellIdentifier: String?
    public var canExpand: Bool {

Eridana

- (IBAction)addPhotoTap:(id)sender {

    UIAlertController* alertController = [UIAlertController alertControllerWithTitle:nil message:nil preferredStyle:UIAlertControllerStyleActionSheet];

    UIAlertAction* fromGallery = [UIAlertAction actionWithTitle:@"Загрузить из фотоальбома" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        
        UIImagePickerController * picker = [[UIImagePickerController alloc] init];
        picker.delegate = self;
        
        picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;

Eridana

#pragma mark - UIScrolViewDelegate

- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    CGFloat pageWidth = scrollView.frame.size.width;
    float fractionalPage = scrollView.contentOffset.x / pageWidth;
    
    NSInteger page = lround(fractionalPage);
    
    if (page == 0) {

Eridana

#if __IPHONE_OS_VERSION_MAX_ALLOWED > 80000
    //ios 9+
    CNContactStore *store = [[CNContactStore alloc] init];
    [store requestAccessForEntityType:CNEntityTypeContacts completionHandler:^(BOOL granted, NSError * _Nullable error) {
        if (granted == YES) {
            NSMutableArray *contacts = [NSMutableArray new];
            NSArray *keys = @[CNContactFamilyNameKey, CNContactGivenNameKey, CNContactPhoneNumbersKey, CNContactImageDataKey];
            NSString *containerId = store.defaultContainerIdentifier;
            NSPredicate *predicate = [CNContact predicateForContactsInContainerWithIdentifier:containerId];
            NSError *error;

Eridana

#include <ifaddrs.h>
#include <arpa/inet.h>

#pragma mark - Get Ip Address

- (NSString *)getIpAddress
{
    NSString *address = @"error";
    struct ifaddrs *interfaces = NULL;
    struct ifaddrs *temp_addr = NULL;

Eridana

//
//  XmppManager.h
//  
//
//

#import <Foundation/Foundation.h>

@protocol XmppChatDelegate <NSObject>
- (void)didReceiveMessage:(NSDictionary *)msgDict;

Eridana

     NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"ru_RU"];
    [dateFormatter setLocale:locale];
    [dateFormatter setDateStyle:NSDateFormatterLongStyle];
    [dateFormatter setTimeStyle:NSDateFormatterMediumStyle];
    
    dateFormatter.doesRelativeDateFormatting = YES;
    
    _dateAsString = [dateFormatter stringFromDate:_date];

Eridana

NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"thisIsTheNameOfYourDateProperty" ascending:NO];
NSArray *orderedArray = [arrayOfCustomObjects sortedArrayUsingDescriptors:[NSArray arrayWithObject:sortDescriptor]];

Eridana

    NSTimeInterval  today = [[NSDate date] timeIntervalSince1970];
    NSString *intervalString = [NSString stringWithFormat:@"%f", today];
    NSDate *date = [NSDate dateWithTimeIntervalSince1970:[intervalString doubleValue]];
    
    NSDateFormatter *formatter=[[NSDateFormatter alloc]init];
    [formatter setDateFormat:@"yyyyMMddhhmm"];

    NSString *strValue = [formatter stringFromDate:date];

Eridana

_textField.delegate = self (UITextFieldDelegate)

- (NSMutableString *)filteredPhoneStringFromString:(NSString *)string withFilter:(NSString *)filter
{
    NSUInteger onOriginal = 0, onFilter = 0, onOutput = 0;
    char outputString[([filter length])];
    BOOL done = NO;
    
    while(onFilter < [filter length] && !done)
    {