dimitris-c

import UIKit

extension UIView {

    public func prepareForAutolayout() {
        translatesAutoresizingMaskIntoConstraints = false
    }

    public func autopin(constant: CGFloat = 0) {
        autopin(.top, constant: constant)

dimitris-c

import CoreLocation

enum LocationAuthorizationStatus {
    case always
    case whenInUse
}

final class LocationManager: NSObject, CLLocationManagerDelegate {
    
    typealias LocationAuthorizationCompletion = (CLAuthorizationStatus) -> Void

dimitris-c

class CenterCellCollectionViewFlowLayout: UICollectionViewFlowLayout {
    
    override func targetContentOffset(forProposedContentOffset proposedContentOffset: CGPoint, withScrollingVelocity velocity: CGPoint) -> CGPoint {
        guard let collectionView = self.collectionView else {
            return super.targetContentOffset(forProposedContentOffset: proposedContentOffset, withScrollingVelocity: velocity)
        }
        
        if collectionView.numberOfItems(inSection: 0) == 0 {
            return super.targetContentOffset(forProposedContentOffset: proposedContentOffset)
        }

dimitris-c

extension UINavigationController {
    
    override open var childViewControllerForStatusBarStyle: UIViewController? {
        return self.topViewController
    }
    
    override open var childViewControllerForStatusBarHidden: UIViewController? {
        return self.topViewController
    }
    

dimitris-c

http://stackoverflow.com/questions/24912704/xcodebuild-running-tests-headless
http://stackoverflow.com/questions/9476131/is-there-a-way-to-remove-the-authorization-prompt-from-command-line-instances-of

dimitris-c

<h1>ARGB color to Objective-C UIColor</h1><br>
<div id="input-bar">
  <div id="hexBar">
    <input type="text" id="argbText"></input>
  </div>
  <div id="button">
    <input type="button" id="convertButton" value="Convert" onclick="argb2UIColor()"></input>
  </div>
</div>
<div id="output-bar">

dimitris-c

http://charlesharley.com/2013/programming/uibutton-in-uitableviewcell-has-no-highlight-state/

I recently created a custom UITableViewCell with a UIButton as a subview. Pretty standard except that the highlight state of the button was only activated if you held your finger on the button for more than some fraction of a second. The solution is quite straight forward but is subtle enough to justify a quick blog post.

Table view cells are displayed using a UITableView which is a subclass of UIScrollView and as such inherits the ability to scroll. A scroll view intercepts touch events and has a short delay to check if the touch event is part of a scroll gesture. If it isn’t then the touch event is passed onto the corresponding view. That explains the delay in the button highlight state.

We can remove the delay by setting UIScrollView.delaysContentTouches = NO. A side effect of this change is that scroll gestures cannot start from the buttons. Depending on how big your buttons are this might not be ideal. The wo

dimitris-c

@interface PassthroughView : UIView
@end

@implementation PassthroughView
-(BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event {
    for (UIView *view in self.subviews) {
        if (!view.hidden && view.alpha > 0 && view.userInteractionEnabled && [view pointInside:[self convertPoint:point toView:view] withEvent:event])
            return YES;
    }
    return NO;

dimitris-c

+ (NSArray *)splitArrayIntoHalf:(NSArray *)originalData {
    
    NSRange firstHalfRange;
    firstHalfRange.location = 0;
    firstHalfRange.length = originalData.count / 2;
    
    NSArray *firstHalfArray = [originalData subarrayWithRange:firstHalfRange];
    
    NSRange secondHalfRange;
    secondHalfRange.location = firstHalfRange.length;