A start to iPhone Application Development- iTools

1. Exploring the ‘ iTools ’
A start to iPhone Application
Development

2. Apple Developer Suite:
 Apple Developer Suite includes 3 applications:
 Xcode
 Interface Builder
 iPhone Simulator
 These three provide all the iTools needed to
design, develop and test the iPhone applications.

3. Exploring the „XCODE‟
 XCODE is the Integrated Development Environment that
let us create and manage iPhone applications.
 Getting Started-
 Create a new project,
File -> New -> Project or (Shift + Command + N)
 Select a Single View Template from any of the options (as
shown in Screenshot)

5.  Make sure Application item under „iOS‟ is selected in the left
panel, then Click Next.
 Now, We need to choose a Product and Organisation
name for the project.
 Make sure „iPhone‟ is selected in „Device‟ option, then Click
Next.
 Then choose a path to save the project on the hard drive.

7. Creating a First Program :
 A set of groups and files are created automatically when
we proceed to the next page, which includes
headers, images, controllers , etc.
 The MessAppDelegate.m page includes all the default
methods which are used by iPhone default
functionality, like terminating an app, loading an
app, etc.
 The MainStoryboard.storyboard page represents the view
page for iPhone applications, which is displayed by the
help of content in MessViewController.m

8.  Find and select MessViewController.m that includes
functions responsible for displaying the Application
content.

9.  The screenshot shows how storyboard page will look like.
 The main function that is first loaded when an application
is started is - (void) viewDidLoad

10.  The following code needs to be written in the
- (void)viewDidLoad function.
We need to enter the following lines of code to display “Hello World” on an iPhone
Screen.
UILabel *myMessage; //Defiines a variable
myMessage=[[UILabel alloc] //allocates memory and sets position on screen
initWithFrame:CGRectMake(10.0,100.0,300.0,50.0)];
myMessage.text=@" Hello World !"; // Any Text
myMessage.backgroundColor=[UIColor redColor]; // Sets the background color
[self.view addSubview:myMessage]; //Add the variable myMessage to the view

11. Using iPhone Simulator
 After we have completed with the code part. We need
to run the app and test.
 For that, we either need an iOS device or iPhone
Simulator. iPhone Simulator is great deal to test the app
because we don‟t need to install the modified app
again and again on the physical device, which is the
case if we test with iOS device.
 Using iPhone Simulator, displays the app exactly as it
should display it on an actual iPhone.

12.  The application is shown running in the iPhone Simulator
in the screenshot

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decade, to clients all over the world, with its gamut of
services ranging from Web Design, Development to iPad
and iPhone Applications. Just visit our website
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services and feel free to contact us any time.