Sweet! Am I the only one who gets REALLY excited for new iOS releases?
iOS SDK 4.3 will offer new capabilities that you can start adding to your apps including the ability to stream video to Apple TV using AirPlay, iAd full screen banners, and HTTP Live Streaming statistics.
AirPlay Video Support
Support for playing video using AirPlay is included in the MPMoviePlayerController
class. This support allows you to play video-based content on AirPlay–enabled hardware such as Apple TV. When the allowsAirPlay
property of an active MPMoviePlayerController
object is set to YES
and the device is in range of AirPlay–enabled hardware, the movie player presents the user with a control for sending the video to that hardware.
You must explicitly opt-in to AirPlay playback for any movie players you create. The allowsAirPlay
property of MPMoviePlayerController
is set to NO
by default.
Framework Enhancements
The following sections highlight the significant changes to frameworks and technologies in iOS 4.3.
AV Foundation
The AV Foundation framework includes the following enhancements:
-
The AV Foundation framework added the
AVPlayerItem
,AVPlayerItemAccessLogEvent
, andAVPlayerItemErrorLogEvent
classes for tracking network playback statistics. -
The
AVMetadataItem
class added support for loading key data asynchronously.
Core Audio Frameworks
The Audio Unit and Audio Toolbox frameworks include the following enhancements:
-
The
AudioUnitParameterHistoryInfo
struct (in the Audio Unit framework) along with supporting audio unit properties adds the ability to track and use parameter automation history. -
The
ExtendedAudioFormatInfo
struct (in the Audio Toolbox framework) lets you specify which codec to use when accessing thekAudioFormatProperty_FormatList
property. -
The
kAFInfoDictionary_SourceBitDepth
dictionary key and thekAudioFilePropertySourceBitDepth
property (in the Audio Toolbox framework) provide access to the bit depth of an audio stream. -
The
kAudioConverterErr_NoHardwarePermission
result code (in the Audio Toolbox framework) indicates that a request to create a new audio converter object cannot be satisfied because the application does not have permission to use the requested hardware codec.
iAd
The ADInterstitialView
class is a view that you can use to embed advertisements more directly into your content. You present an interstitial view modally or as part of a transition from one page of content to another. For example, you might use this type of view to incorporate full-page ads into a page-based magazine layout.
Media Player
The Media Player framework includes the following enhancements:
-
The
MPMoviePlayerController
class supports playback of video content using AirPlay; see “AirPlay Video Support.†-
The
MPMovieAccessLog
,MPMovieErrorLog
,MPMovieAccessLogEvent
, andMPMovieErrorLogEvent
classes allow you to track network playback statistics. -
The
MPMoviePlayerController
class now includes properties for accessing log information.
UIKit
The UIViewController
class added the disablesAutomaticKeyboardDismissal
method, which you can use to override the default input view dismissal behavior.