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NSLayoutConstraint *constraint = [NSLayoutConstraint constraintWithItem:self.view1
                                                              attribute:NSLayoutAttributeRight
							      relatedBy:NSLayoutRelationEqual
								 toItem:self.view2
							      attribute:NSLayoutAttributeLeft
							     multiplier:1
							       constant:0];

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- (NSURL *)hitListURLWithTaskTitle:(NSString *)title {
  // Basic URL as a starting point
  NSURLComponents *components = [NSURLComponents componentsWithString:@"thehitlist:///inbox/tasks"];
  
  components.queryItems = @[
    [NSURLQueryItem queryItemWithName:@"method" value:@"POST"],
    [NSURLQueryItem queryItemWithName:@"title" value:title]
  ];
  
  // NSURLQueryItem has encoded any spaces as %20 which is fine

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NSURLComponents *components = [NSURLComponents componentsWithString:input];

// Re-encode + symbols so NSURLQueryItem recognises them as spaces
components.percentEncodedQuery = [components.percentEncodedQuery
  stringByReplacingOccurrencesOfString:@"+"
  withString:@"%20"];

NSArray *items = components.queryItems;
// Enumerate and handle the items

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NSDataDetector *detector = [NSDataDetector
                            dataDetectorWithTypes:NSTextCheckingTypeDate
                            error:NULL];

NSTextCheckingResult *result = [detector
                                firstMatchInString:string
                                options:0
                                range:NSMakeRange(0, string.length)];

return result.date;

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- (void)encodeRestorableStateWithCoder:(NSCoder *)coder {
	[super encodeRestorableStateWithCoder:coder];
	
	[coder encodeObject:self.firstViewController forKey:@"viewController1"];
	[coder encodeObject:self.secondViewController forKey:@"viewController2"];
}

- (void)decodeRestorableStateWithCoder:(NSCoder *)coder {
	[super decodeRestorableStateWithCoder:coder];
	

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- (void)encodeRestorableStateWithCoder:(NSCoder *)coder {
	[super encodeRestorableStateWithCoder:coder];
	[coder encodeInteger:self.mode forKey:@"mode"];
}

- (void)decodeRestorableStateWithCoder:(NSCoder *)coder {
	[super decodeRestorableStateWithCoder:coder];
	self.mode = [coder decodeIntegerForKey:@"mode"];
}

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- (void)encodeRestorableStateWithCoder:(NSCoder *)coder {
	[super encodeRestorableStateWithCoder:coder];
	
	[coder encodeObject:self.contentViewController
	             forKey:@"contentViewController"];
}

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- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    
    NSIndexPath *selectedRowIndexPath = [self.tableView indexPathForSelectedRow];
    if (selectedRowIndexPath) {
        [self.transitionCoordination animateAlongsideTransitionInView:self.tableView animation:^(id<UIViewControllerTransitionCoordinatorContext> context) {
            [self.tableView deselectRowAtIndexPath:selectedRowIndexPath animated:YES];
            
        } completion:^(id<UIViewControllerTransitionCoordinatorContext> context) {

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@interface MyTableViewCell

@property(nonatomic, copy) void (^checkboxHandler)(void);

@end

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@implementation MyTableViewCell
 
- (IBAction)checkboxPressed:(UIButton *)checkbox {
    // Send onwards up the responder chain
    id target = [self targetForAction:@selector(cellCheckboxPressed:)
                           withSender:self];
    
    [target performSelector:@selector(cellCheckboxPressed:)
                 withObject:self];
}