iPhone all Device Frames

iOS Device Screen Sizes

Device
iPhone 4s              -- 640 × 960
iPhone 5 and 5s    --  640 × 1136
iPhone 6                --  750 × 1334 
iPhone 6 Plus        --  1080 × 1920 
iPad 2 and iPad mini   -- 768 × 1024 (1x)
iPad Air, iPad Retina, and iPad mini Retina --  1536 × 2048

Software Size
320 × 480 320 × 568 375 × 667 414 × 736 768 × 1024 768 × 1024

Creating a Button using Swift

 //MARK:UIButton

    func buttonClass()

    {

        //Creating the Button

        var btn:UIButton!

        btn = UIButton(frame: CGRectMake(100, 100, 100, 30));

        

        //set Title

        btn.setTitle("Login", forState:UIControlState.Normal)

        

        //set Text Color

        btn.setTitleColor(UIColor.blackColor(), forState: UIControlState.Normal)

        

        //set Back ground Color

        btn.backgroundColor = UIColor.greenColor()

        

        //Add target

        btn.addTarget(self, action: "buttonTapped:", forControlEvents: UIControlEvents.TouchUpInside)

        

        //Add to the View

        self.view.addSubview(btn)

    }

    func buttonTapped(sender : UIButton!)

    {

        var myBtnObj = sender

        println("button tapped called")

    }

creating an Image View using Swift

Class Abc:UIViewController

{    

    //MARK:UIImageView 

    func imageViewClass()

    {

        //Creating Image View

        var imgView:UIImageView!

        imgView = UIImageView(frame: CGRectMake(100, 100, 100, 100))

        

        //set Image

        imgView.image = UIImage(named: "a.png")

        

        //set Back Ground Color

        imgView.backgroundColor = UIColor.blackColor()

        

        //Add gesture

        var tap =  UITapGestureRecognizer(target: self, action: "imageTapped:")

        imgView.gestureRecognizers = NSArray(object: tap)

        imgView.userInteractionEnabled = true

        

        //set Content Mode

        imgView.contentMode = UIViewContentMode.ScaleAspectFill

        

        //Add to View

        self.view.addSubview(imgView)

    }

    func imageTapped(sender: UITapGestureRecognizer!)

    {

        println("My Image is Tapped")

    }

    

}

Creating a Label in Swift

      //MARK:UILabel

    func labelClass()

    {

        //Create Label

        var lbl:UILabel!

        lbl = UILabel(frame: CGRectMake(100, 100, 100, 40))

        

        //set text

        lbl.text = "First Label"

        

        //Text Color

        lbl.textColor = UIColor.redColor()

        

        //Add SubView

        self.view.addSubview(lbl)

    }

    

   

ios 7 bar button Image change

 UIImage *temp = [[UIImage imageNamed:@"Log out.png"] imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal];

    UIBarButtonItem *barButtonItem = [[UIBarButtonItem alloc] initWithImage:temp style:UIBarButtonItemStyleBordered target:appDelegate action:@selector(logOutTapped)];

    self.navigationItem.rightBarButtonItem = barButtonItem;

Sorting Array

    [favoriteArraysortUsingDescriptors:[NSArray arrayWithObject:[[NSSortDescriptor alloc]initWithKey:nilascending:YES]]];

File Appening

 //append text to file (you'll probably want to add a newline every write)

      NSFileHandle *file = [NSFileHandle fileHandleForUpdatingAtPath:filePath];

      [file seekToEndOfFile];

      [file writeData:[content dataUsingEncoding:NSUTF8StringEncoding]];

      [file closeFile];