The Swift Programming Language with iOS App

The Swift Programming Language with iOS App

• 1.
  IOS 8 Features and SwiftDevelopment Presenter: Vivek Chaudhary, Mindfire Solutions Date: 08/05/2013
• 2.
   IOS 8Features  Swift Development  Syntax and Basics  Objective C to Swift  Sample Code  Pros and Cons
• 3.
   Battery usageindicator  Interactive Notifications  Credit Card Scanning  New keyboard  Continuity  Family Sharing
• 4.
   Message UIand new widgets  Lock screen app suggestions  Healthkit  Improved search results
• 5.
   Some syntaxfrom Java Script  Smartly detects data types itself  Objective C API + Additional  No semicolon  Body Braces compulsory for If-else
• 6.
   Single filein place of two files (.h and .m)  Declaration and implementation in the same file  Reduces the project size  Number of files reduces to half
• 7.
  1. let someConstant: String = “constant” 2. var someVar : String = “variable”  Swift is smart enough to detect data types  Var someVar = “variable”  Var var1 = 1  Var var2 = 1.0
• 8.
   NSString andString both are available 1. Let string = “Hello” 2. Let anotherString = string + “Mindfire” 1. For char in str 2. { 3. // Code Here 4. }
• 9.
   Objective C [NSString stringWithFormat:]  Swift  (expression)  Let var1 = 2  Let var2 = 3  Println( “Multiplication is : (var1 * var2)”)
• 10.
  1. let someArray:String[]= [“A”, “B”, “C”] 2. let someArray = [“A”, “B”, “C”] 3. var someArray:String[] = [“A”, “B”, “C”] 4. SomeArray += “D” 5. SomeArray += [“D”, “E”] 6. print(“First Element :(someArray[0]) ”)
• 11.
  1. let dict:Dictionary<String,String> = [“A”:”1”, “B”:”2”] 2. var dict:Dictionary<String, String> = [“A”:”1”, “B”:”2”] 3. var dict = [“A”:”1”, “B”:”2”] 1. dict[“C”] = “3” 2. Dict += [“D”:”4”, “E”:”5”]
• 12.
   + and– are sliced off. func functionName(var1:String, var2:String)- >String  Functions can return more than one parameters too.  These are returned in the form of tuples.
• 13.
  Function Definition func functionName(var1:String,var2:String)- >(String, Int) Function Calling Var result : (res1:String, res2:Int) = self.functionName(var1:”Hello”, var2:”Mobile”) Print(“result is (result.res1)”;
• 14.
   Type idchanges to AnyObject  Downcast is done automatically by swift.  “as” keyword is used to typecast Var textField: UITextField = array.firstObject() as UITextField
• 15.
  One has tomanually change his Objective C code to Swift  - changes to func  + changes to class func  #define changes to let  #pragma changes to // MARK :
• 16.
   init isnot used in swift.  InitWith and with is also not used.  Complex macros should be converted into functions Let myColor = UIColor(red:0.5, green:0.5,blue:0.5, alpha:1.0);
• 17.
  PLAYGROUNDS
• 19.
  REFRENCE LINKS https://developer.apple.com/library/prerelease/i os/documentation/Swift/Conceptual/BuildingCo coaApps/ http://code.tutsplus.com/tutorials/an- introduction-to-swift-part-1--cms-21389
• 20.
  Presenter: Debasish Mohanty,Mindfire Solutions Thank you 
• 21.
  www.mindfiresolutions.com https://www.facebook.com/MindfireSolutions http://www.linkedin.com/company/mindfire-solutions http://twitter.com/mindfires