Category: Programming
Access Control in Swift
Swift like other programming languages provides option to restrict access to classes, functions, variables, structs, enums etc applying the required Access Control. These restrictions are based on each module, as per Apple documentation a module is defined as A module is a single unit of code distribution—a framework or application that is built and shipped as a…
Add annotations and Polyline to MapView in Swift
In this article, we will see the instructions for adding annotation to MapView, Draw Polylines and Zoom to a region in Swift. Let us see this by adding stations to a Map for Chennai subrban trains and connect these stations using Map Overlay. Project Setup Create a new project by selecting Single View Application…
DatePicker Demo in Swift
In this short tutorial, we are going to see the steps required use DatePicker in a iOS / Swift project. This demo is done by adding the DatePicker controls to Interface Builder and not programmatically. Date Picker Mode Date Picker control allow developers to specify the mode such as Date, Time, Date and Time and…
Tuples, Enums and Protocols in Swift
Tuples in Swift allows user to assign group of values to a variable, constant and even return parameter of a function. In the below example, a employee constant is assigned Int and String values. And to access these parameters, we need to use .0 and .1 [code language=”swift”]let employee = (103, “Deepak”) employee.0 employee.1[/code] Now…
Retrieve list of Twitter followers using Swift
This article provides details about the the steps required to retrieve the followers in from your twitter account. You will learn the following by going through this article Use oAuth to retrieve bearer token. Retrieve twitter followers using API call. Last 20 followers name and profile image will be displayed in a tableview. Download the…
How to record and play sound in Swift
In this tutorial, we are going to see the required steps to record and play sound in Swift Programming language using AVAudioRecorder and AVAudioPlayer Download source code from github (SoundController.swift) User Interface The user interface for this demo is simple with two buttons, one for recording and another for playing sound. Create corresponding IBAction and…
UITextFieldDelegate in Swift
This is a beginners tutorial on UITextFieldDelegate in Swift. We are going to see how to use UITextFieldDelegate by writing a Simple Interest Calculator. Download the source code from here This calculator uses UILabels and TextFields for displaying and accepting amount and interest. We are going to use the UITextFieldDelegate method to navigate from “Principal…
SplitViewController example in Swift
This is a beginners tutorial on SplitViewController using Interface builder with programming language as Swift. There are also some good articles available on SplitViewController, check them out as well – nhipster and whoisryannystrom. Create a new Single View Application. Choose Language option as Swift and provide a product name. Navigate to Main.Storyboard and select default…