ios AVAudioPlayer ( Audio Play )

http://mobileorchard.com/easy-audio-playback-with-avaudioplayer/

http://blog.naver.com/myungjik?Redirect=Log&logNo=20142627935

AVAudioPlayerDelegate Protocol Reference

Conforms to	NSObject
Framework	/System/Library/Frameworks/AVFoundation.framework
Availability	Available in iOS 2.2 and later.
Declared in	AVAudioPlayer.h
Related sample code	AddMusic avTouch Breadcrumb iPhoneACFileConvertTest iPhoneExtAudioFileConvertTest

Overview

The delegate of an AVAudioPlayer object must adopt the AVAudioPlayerDelegate protocol. All of the methods in this protocol are optional. They allow a delegate to respond to audio interruptions and audio decoding errors, and to the completion of a sound’s playback.

Tasks

Responding to Sound Playback Completion

• – audioPlayerDidFinishPlaying:successfully:

Responding to an Audio Decoding Error

• – audioPlayerDecodeErrorDidOccur:error:

Handling Audio Interruptions

• – audioPlayerBeginInterruption:
• – audioPlayerEndInterruption:withOptions:
• – audioPlayerEndInterruption: Deprecated in iOS 6.0
• – audioPlayerEndInterruption:withFlags: Deprecated in iOS 6.0

Instance Methods

audioPlayerBeginInterruption:

Called when an audio player is interrupted, such as by an incoming phone call.

- (void)audioPlayerBeginInterruption:(AVAudioPlayer *)player

Parameters

player

The audio player that has been interrupted.

Discussion

Upon interruption, your application’s audio session is deactivated and the audio player pauses. You cannot use the audio player again until you receive a notification that the interruption has ended.

Availability

• Available in iOS 2.2 and later.

See Also

• – audioPlayerEndInterruption:withFlags:

Declared In

AVAudioPlayer.h

audioPlayerDecodeErrorDidOccur:error:

Called when an audio player encounters a decoding error during playback.

- (void)audioPlayerDecodeErrorDidOccur:(AVAudioPlayer *)player error:(NSError *)error

Parameters

player

The audio player that encountered the decoding error.

error

The decoding error.

Availability

• Available in iOS 2.2 and later.

Declared In

AVAudioPlayer.h

audioPlayerDidFinishPlaying:successfully:

Called when a sound has finished playing.

- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag

Parameters

player

The audio player that finished playing.

flag

YES on successful completion of playback; NO if playback stopped because the system could not decode the audio data.

Discussion

This method is not called upon an audio interruption. Rather, an audio player is paused upon interruption—the sound has not finished playing.

Availability

• Available in iOS 2.2 and later.

Declared In

AVAudioPlayer.h

audioPlayerEndInterruption:withOptions:

Called after your audio session interruption ends, with options indicating the state of the audio session.

- (void)audioPlayerEndInterruption:(AVAudioPlayer *)player withOptions:(NSUInteger)flags

Parameters

player

The audio player whose interruption has ended.

flags

Options indicating the state of the audio session when this method is called. Options are described in AVAudioSessionInterruptionOptions.

Discussion

When an interruption ends, such as by a user ignoring an incoming phone call, the audio session for your application is automatically reactivated; at that point you can again interact with the audio player. To resume playback, call the play method.

If this delegate method receives the AVAudioSessionInterruptionOptionShouldResume constant in its options parameter, the audio session is immediately ready to be used.

Availability

• Available in iOS 6.0 and later.

Declared In

AVAudioPlayer.h

Next

AppDelegate.h

@interface AppDelegate : UIResponder <UIApplicationDelegate, AVAudioPlayerDelegate>

AppDelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];

    // Override point for customization after application launch.

    self.window.backgroundColor = [UIColor whiteColor];

    [self.window makeKeyAndVisible];

    

    NSString *soundFilePath =

    [[NSBundle mainBundle] pathForResource: @"[Piano] James Morrison-You Give Me Something"

                                    ofType: @"mp3"];

    

    NSURL *fileUrl = [[NSURL alloc] initFileURLWithPath: soundFilePath];

    

    

    AVAudioPlayer *newPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:fileUrl error:nil];

    

    

    

    [fileUrl release];

    [soundFilePath release];

    

    [newPlayer setNumberOfLoops:0];

    [newPlayer play];

    

    

    

//    NSError *error;

//    AVAudioPlayer *audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:fileUrl error:&error];

//    NSLog(@"%@", audioPlayer);

    return YES;

}

- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag{

    [player release];

}