iCarambaa

@interface UIApplication(Reachability)
// This private method is used to push the view controller back up after
// double tapping the home button
- (void)_deactivateReachability;
@end

iCarambaa

import UIKit
import PlaygroundSupport

// This playground compares the time spend in `setNeedsDisplay` to the time spend in `draw(rect:)`
// From the documentation, `setNeedsDisplay` should return in constant time but as you see here
// it grows linear with the time needed in `draw(rect)`.
// to compare for yourself, observe the variables `timeInSetNeedsDisplay` and `timeInDrawRect` and start drawing points by panning in
// the live view

final class PointView: UIView {