Category: Objective C

Cocoa Layered Architecture for Mac OSX

Cocoa Layered Architecture for Mac OSX Created By: Debasis Das Below is a high level summary architecture diagram for the different layers in a Mac OSX for Cocoa App Development. Each layer helps achieve rich functionalities. Primarily the OSX is

Posted in Architecture, Cocoa, Cocoa Touch, iOS, Objective C Tagged with: , , ,

Abstract Factory Design Pattern Objective C

Abstract Factory Design Pattern Objective C Written By: Debasis Das (9-June-2015) Abstract Factory Design Pattern Objective C The Abstract Factory Design Pattern provides an interface for creating families of related or dependent objects without specifying their concrete classes. Class Cluster

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Web App vs Native App vs Hybrid App

Web App vs Native App vs Hybrid App Written By: Debasis Das (23-May-2015) Today we are choosing a very controversial topic to write on, there is a never ending battle between technology experts and aficionados as to what is the

Posted in Charts n Graphs, Cocoa, Cocoa Touch, Generic, iOS, iOS Games, Objective C, Web Technology Tagged with: , , , ,

NSPredicateEditor Sample Code

NSPredicateEditor Sample Code Created By: Debasis Das (19-May-2015) In this tutorial we will create a sample application to demonstrate the usage of NSPredicateEditor & NSPredicateEditorRowTemplate. We will also create a custom row template by subclassing NSPredicateRowTemplate. A NSPredicateRowTemplate normally has the

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Cocoa Delegate Design Pattern

Cocoa Delegate Design Pattern Written By: Debasis Das (18-May-2015) Cocoa Delegate Design Pattern is a powerful design pattern in which one object works on behalf of another object. Examples of some of the delegating object in AppKit framework are as follows

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Autolayout Visual Format Language – Objective C Sample Code

 Autolayout Visual Format Language – Objective C Sample Code Written By: Debasis Das (7-May-2015) Undoubtedly Autolayout is a powerful tool at the hands of Cocoa & iOS Developers. It has a learning curve but gives immense control over UI resize

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Observer Design Pattern, Key-Value Observing

Observer Design Pattern, Key-Value Observing Written By: Debasis Das (3-May-2015) In the Observer Design Pattern , one object notifies other objects of any state changes. The Observer Design Pattern requires that an observer registers itself for changes in the state of another

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NSToolbar Sample Code in Objective C

NSToolbar Sample Code in Objective C Created By: Debasis Das (1-May-2015) In this post we will create a simple Cocoa OSX Application that has a NSWindow with NSToolbar generated from code and each NSToolbarItem is mapped to individual view controller.

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NSURLSession Sample Code

NSURLSession Sample Code Written By: Debasis Das (28-Apr-2015) In this article we will create a sample application that reads data from a web service using NSURLSession, NSURLSessionDelegate & NSURLRequest. We have demonstrated 2 different approaches of getting data. Delegate Approach

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Splash Screen in Cocoa Objective C

Splash Screen in Cocoa, Objective C Written By : Debasis Das (26-Apr-2015) Why do we need a Splash Screen? Sometimes when loading the application instantly is not a practical option, one should give a Splash Screen with a Progress Indicator

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