loganwright

#Timer

struct Timer : Printable {
    let start = NSDate()
    let name: String
    var description: String {
        let now = NSDate()
        let dif = now.timeIntervalSince1970 - start.timeIntervalSince1970
 let roundedDif = Double(round(1000 * dif)/1000)

loganwright

##Useful Shortcuts

Here's a pretty decent reference as well: http://i.stack.imgur.com/Buohl.jpg

###Must Haves!

cmd + shift + o -- quick navigator -- works with classes, structs, functions, etc.

cmd + shift + j -- Show current file in navigator. Pairs well w/ quick navigator to see where the file fits into the full app.

loganwright

struct TimeOfDay {
    
    // MARK: Public Properties
    
    var hours: Int
    var minutes: Int
    
    var stringRepresentation: String {
        var stringRepresentation = hours < 10 ? "0" : ""
        stringRepresentation += "\(hours):\(minutes)"

loganwright

class PickerSource : NSObject, UIPickerViewDelegate, UIPickerViewDataSource {
    
    var data: [[String]] = []
    var selectionUpdated: ((component: Int, row: Int) -> Void)?
    
    // MARK: UIPickerViewDataSource
    
    func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {
        return data.count
    }

loganwright

func After(after: NSTimeInterval, op: () -> ()) {
    After(after, op, nil)
}

func After(after: NSTimeInterval, op: () -> (), completion: (() -> Void)?) {
    let seconds = Int64(after * Double(NSEC_PER_SEC))
    var dispatchTime = dispatch_time(DISPATCH_TIME_NOW, seconds)
    dispatch_after(dispatchTime, dispatch_get_main_queue()) {
        let blockOp = NSBlockOperation(block: op)
        blockOp.completionBlock = completion

loganwright

Search a directory: http://stackoverflow.com/a/16957078/2611971

Do the following:

grep -rnw 'directory' -e "pattern"

-r is recursive, -n is line number and -w stands match the whole word. Along with these, --exclude or --include parameter could be used for efficient searching. Something like below:

grep --include=\*.{c,h} -rnw 'directory' -e "pattern"

loganwright

#import <UIKit/UIKit.h>

@interface LGOutlinedTextLabel : UILabel
@property (strong, nonatomic) UIColor *outlineColor;
@property (nonatomic) CGFloat outlineWidth;
@end

loganwright

func shell(input: String) -> (output: String, exitCode: Int32) {
    let arguments = split(input, maxSplit: Int.max, allowEmptySlices: true) {
        $0 == " "
    }
    
    let task = NSTask()
    task.launchPath = "/usr/bin/env"
    task.arguments = arguments
    task.environment = [
        "LC_ALL" : "en_US.UTF-8",

loganwright

@import UIKit;

CGFloat degreesToRadians(CGFloat degrees);

CGFloat distanceBetweenDegrees(CGFloat min, CGFloat max);

CGPoint pointOnArc(CGPoint center, CGFloat radius, CGFloat angleInDegrees);

loganwright

#import <UIKit/UIKit.h>

@interface UIImage (Resize)
- (UIImage *)scaleToSize:(CGSize)size;
@end