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What is iPhone?
iPhone is a combination of Internet and multimedia-enabled smart phone developed by Apple Inc.
iPhone functions as a camera phone, including text messaging and visual voicemail
iPhone is a portable media player that looks like a video iPod
It has a user interface that is built around the multi-touch screen, including virtual keyboard.
App Store, which launched in mid-2008, more than 1,00,000 applications with features like games, reference, GPS navigation, advertising, television, movies, references, celebrities.
What are the relevant states. Explain?
Flowing Status: The request has not started or was performed but was denounced by the system.
Inactive: The application is running in the foreground, but is currently not receiving events. (The other code may be performed though.) An application usually remains in this state only briefly in the transition to another state. The only time it is inactive for a period of time when the user locks the screen or the system asks the user to respond to an event, such as an incoming call or text message.
Active Status: The application is running in the foreground and receives events. This is the normal mode for foreground applications.
State Background: The application is in the background and the code execution. Most applications fall into this state briefly on the way to be suspended. However, an application that extra time is needed implementation this condition for a period of time. Moreover, an application launched directly into the light enters this state in place of the active state. For more information about how to execute code while in the background, see "Background and multitasking." From
State suspended: The application is in the background, but not executed code. The system automatically moves applications to this state and not to warn before doing. While suspended, the application remains in memory, but has to perform. No code At a low-memory occurs, it can purify the suspended system without notice in order to make room for the application in the foreground applications more space.
Which App Bundle?
A: When your iOS application, Xcode packages as build a package. A bundle is a directory in the file system that groups related resources in one place. An iOS application bundle contains the executable file of the application and source files, like application icons, images and localized content.
Which App Bundle?
A: When your iOS application, Xcode packages as build a package. A bundle is a directory in the file system that groups related resources in one place. An iOS application bundle contains the executable file of the application and source files, like application icons, images and localized content.
Introduction to the development of the Iphone applications ?
In 2007, the mobile phone industry with the introduction of the iPhone, mobile phone screen multi-touch, which was also the functionality of the iPod.
Multitasking support is available from which version?
iOS 4.0
What is a structure?
A: A struct is a special data type C which encapsulates other data elements into a cohesive unit. As an object, but built in C.
Which iPhone OS?
iPhone OS running on the iPhone and iPod touch.
Hardware devices are managed by the iPhone OS and provides the necessary implementing native applications on the phone technologies.
The system comes with a variety of system applications such as Mail, Safari, Phone, which provide standard services to users.
What is the difference between NSArray and NSMutableArray?
A: NSArrays content can not be changed once it is created when a NSMutableArray can be changed, if necessary, ie elements can be added / removed from it.
