How do I add background music to my spritekit file

问题

Could someone give me a quick easy step by step to adding background m4a music once my app has loaded. It is a sprite kit Xcode file, and the music is in m4a format. Thanks

回答1:

Try with this:

@import AVFoundation;

...

AVAudioPlayer * backgroundMusicPlayer;
NSError *error;
NSURL * backgroundMusicURL = [[NSBundle mainBundle] URLForResource:@"song" withExtension:@"m4a"];
backgroundMusicPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:backgroundMusicURL error:&error];
backgroundMusicPlayer.numberOfLoops = -1; //-1 = infinite loop
[backgroundMusicPlayer prepareToPlay];
[backgroundMusicPlayer play];

and to stop simply

[backgroundMusicPlayer stop];

note: I don't use SKAction to play background music because you can't stop it when you want

回答2:

You can use AVAudioPlayer for this purpose:

In your .h:

#import <AVFoundation/AVFoundation.h>

and add the following to interface

AVAudioPlayer *player;

In .m, initialize player with audio oath url:

NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle]
                                             pathForResource:@"bg_music"
                                             ofType:@"mp3"]];
player = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil];
player.numberOfLoops = -1;

and when you need to play the audio, you can call:

[player play];

Note: "numberOfLoops" is the number of times that the sound will return to the beginning upon reaching the end.

A value of zero means to play the sound just once.
A value of one will result in playing the sound twice, and so on...
Any negative number will loop indefinitely until stopped.

Keep Coding................ :)

来源：https://stackoverflow.com/questions/21947117/how-do-i-add-background-music-to-my-spritekit-file

标签

xcode

audio

sprite