Why iPhone apps are popular?

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   Give our business a whole new way of transacting business for millions of users.
iPhones are the market leaders in the smart phone segment. The iPhone has become a great device to surf the internet, play games, interact with social networks and transact business.

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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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Setup React Native Environment in Mac for iOS and Androd

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Step 0 — Install  npm and node.js Go to the node.js website ( https://nodejs.org/en/ )and install  node.js . npm is distributed with Node.js which means that when you download Node.js, you automatically get npm installed on your computer. npm is a package manger for JavaScript programming language, and the default package manager for Node.js Javascript runtime environment. Step 1 — Install Homebrew Open your terminal and run the following code to install  Homebrew  − /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" If for some reason copying and pasting the above didn’t work, please go directly to the  website  and copy and paste the command/code from there. Step 2 — Install Watchman Run the following code to install Watchman. brew install watchman Step 3 — Install React Native Now, run the following code to install React Native. sudo npm install -g react-native-cli Step 4 Android ...
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What is Cocoa and Cocoa Touch?

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 Cocoa and Cocoa Touch are the application development environments for Mac OS X and   iOS, respectively. Both Cocoa and Cocoa Touch include the Objective-C run time and two core frameworks:   Cocoa , which includes the Foundation and AppKit frameworks, is used for developing applications that run on Mac OS X.   Cocoa Touch , which includes Foundation and UIKit frameworks, is used for developing applications that run on iOS.  Note:  The term “Cocoa” has been used to refer generically to any class or object that is   based on the Objective-C runtime and inherits from the root class,   NSObject . The terms “Cocoa” or “Cocoa Touch” are also used when referring to application development using any   programmatic interface of the respective platforms.
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