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我使用此代碼使用滑塊改變AVAudioPlayer體積在iPhone SDK的
NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/audiofile.mp3", [[NSBundle mainBundle] resourcePath]]];
NSError *error;
player = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];
player.numberOfLoops = -1;
if (player == nil)
NSLog(@"%@",[error description]);
else
[player play];
,但我想改變音量,所以我怎麼能得到體積的細節?
非常感謝您的回覆..其工作:) – NSP 2012-08-04 10:46:51