What is an iPhone app?

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 An iPhone app is a program that runs on our iPhone/iPod Touch. It enables us to accomplish a certain task. They could be utility apps, games, enterprise apps, entertainment apps, apps to access our bank account etc.

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How to use nsxmlparser in Iphone SDk?

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NSXMLParser is a forward only reader or an event driven parser. What it means is, an event is raised whenever the parser comes across a start of an element, value, CDATA and so on. The delegate of NSXMLParser can then implement these events to capture XML data. Some of the events are raised multiple times like the start of an element, value of an element and so on. Since NSXMLParser is known as an event driven parser, we can only read data at the present node and cannot go back. The iPhone only supports  NSXMLParser  and not  NSXMLDocument , which loads the whole XML tree in memory. Books Application To understand how to use an instance of NSXMLParser, let’s create a simple navigation based application where we will list the title of the book in the table view and upon selecting a title, display the detail information in a detail view. Click  here  to see the sample XML file, used in this application. Create a new application in XCode by selecting Navig...
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How to add custom ringtone in iphone?

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How to convert string uppercase in iPhone?

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Step 1: Open the Xcode, Create a new project using Single View Application. Give the application “StringConvert”. Step 2: Need to add new viewController class in the project. Select project -> New file -> UIViewController subclass -> next -> Give the application name “StringConvertView”. Step 3: Now open the AppDelegate.h file and make the following changes: #import <UIKit/UIKit.h> @class   StringConvertView; @interface   AppDelegate  :  UIResponder <UIApplicationDelegate> { StringConvertView  * stringConvertView; } @property   ( nonatomic, retain ) IBOutlet StringConvertView  * stringConvertView; Step 4: In the AppDelegate.m file make the following changes: #import "AppDelegate.h" #import "StringConvertView.h" @implementation   AppDelegate @synthesize   window  =  _window; @synthesize   stringConvertView; -  ( BOOL ) application : ( UIApplication  * ) application didF...
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