NSNotificationCenter Example in Swift

Here is a simple demo on how to use “NSNotificationCenter” in swift. NSNotificationCenter is particularly useful when there are multiple class or struct instances that need to take action based on something that happens elsewhere in your application. To Register the notification… we will call Now to trigger the notification… The “notificationKey” should be unique… Read More »

Simple Core Data tutorial in iOS

In this tutorial we will be making a simple application to save a person details using Core Data. Here we will have two models or it can be said as Database tables – Model1 and Model2. Below are the basic things about Core Data… Core Data Stack The key objects of the stack are the… Read More »

Sync Adapter in Android – A Simple Example…

Hello all, In Today’s article we will be discussing about the SyncAdapters in Android. SyncAdapter is just a simple plugin like structure for syncing your server and Device. Check out this post about Account authenticator before proceeding. Why do we use SyncAdapter instead of Using Alarm Manger to Sync? Automated execution     Sync can be requested… Read More »

What are Generics and Why should we use Generics?

The Java Generics programming is introduced in J2SE 5 to deal with type-safe objects. Advantage of Java Generics There are mainly 3 advantages of generics. They are as follows: 1) Type-safety : We can hold only a single type of objects in generics. It doesn’t allow to store other objects. 2) Type casting is not… Read More »

ActionBars in Android

1. How to start with ActionBar in Android? With Android 3.0 Google eliminated the need of hardware menu button which is replaced by Action Bars. Here is a quick example on how to use ActionBars. First create a new project and name it ActionBarExample. Now create a folder named “menu” in res folder and create… Read More »

Create a date in your format in IOS

Below functions takes the current date and time and formats it to give a date-time string. You can customise it in the way you want. The string that the below function generates will be like this – 23-Dec-2014 4:23 PM Use “MMMM” for “December” and “MMM” for “Dec” in month.

IN App Purchase – Android – Simplified source code

Hi all, I have already showed you how to implement in app purchase in Android. Please go through this post before reading this article. This is how the MainActivity source code will look like. You can download the complete source code from here itself.

Creating Tabs dynamically in ios with dynamic tab controller.

This article covers how do you create a tab based application in an ISOS Application. At first you Create a new Project and Click on Single View Application and name it accordingly. After creation of the project, open the storyboard and you can see a single view controller which is connected to class ViewController. Just… Read More »

Making a GridView in iOS using UICollectionView.

Hey all, In Today’s article you will study about the implementation of UICollectionView in iOS. It is similar to GridView in Android. First drag a UICollectionView [Not the Collection View Controller] in your interface and let it be there. we will come back to it later. We are going to create a UICollectionView with custom… Read More »

What is @property in iOS mean?

The goal of @property directive in iOS is to create the getters and setters for that object so that you can access it in your program. It allows you to specify the behavior of a public property on a semantic level, and it takes care of the implementation details for you. This article also tells… Read More »

Download an image with ProgressBar in iOS

Hi all, Today I will show you how you can download an image showing complete progress. Make sure that you have an interface like the below image. You should link all the interface views with the corresponding variables in ViewController.h ViewController.h ViewController.m You can download the complete source code from here.

Creating a Custom Alert or PopUp in iOS

First we will write a class that extends UIView to create a Custom PopUp Create a Cocoa file and name it CustomPopUp You should get two files CustomPopUp.h and CustomPopUp.m CustomPopUp.h CustomPopUp.m I have a sample interface like this. Now the ViewController.m MAKE SURE YOU HOOK UP THE BUTTONS TO THEIR CORRESPONDING FUNCTIONS. You can… Read More »

NSURLConnection – A Simple example – Upload image to server using POST method.

Make sure you setup the server and have gone through this post before reading this article. You can read more about NSURLConnection Class from here. https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/NSURLConnection_Class/index.html#//apple_ref/occ/instm/NSURLConnection/ Here In this article I am going to select an image from the gallery and upload to a server using 1. Synchronous method 2. Asynchronous method – different ways.… Read More »

Select an image from Gallery and show it in an ImageView in ios.

Hey all, This is a simple post showing how you can open the “Gallery” or “Photos” application in iOS. The Sample UI should look like this. Screenshot selecting image from the Gallery. Now to the code. ViewController.m ViewController.m We add “UINavigationControllerDelegate,UIImagePickerControllerDelegate” to get the events after selecting the image from the Gallery. The below function… Read More »

Send Data to server in iOS using POST OR GET – A Simple Example

First Make sure you have this kind of layout and you have linked all the views to their respective variables. For server side I am using XAMPP for Localhost for now and My php file will be residing in Applications ▸ XAMPP ▸ xamppfiles ▸ htdocs You can download “XAMPP For Mac” from this link.… Read More »

Simple way to Animating Layout Changes in Android.

A layout animation is a pre-loaded animation that the system runs each time you make a change to the layout configuration. All you need to do is set an attribute in the layout to tell the Android system to animate these layout changes, and system-default animations are carried out for you. Create the Layout In… Read More »

StoryBoards in iOS – A Simple Example

Hey everyone, Today we will see how we can use storyboards in an application. First we will Create a sample project named “StoryBoardDemo” Now we will Add the Navigation Controller For that Go To Menu -> Editor >Embed In -> NavigationController Now Double Click on the Title Bar and Add the title “Companies” Now Drag… Read More »

Localhost for Android Emulator and iPhone Simulator.

If you are trying to access a file (PHP or java) residing in your server in your own machine, then you have to use a specific IP to access it. If it is public, then use the other System’s IP 1. If it is localhost, In Android you use it as 10.0.2.2 The localhost refers… Read More »