我正在使用下面的代码在 iOS 6 上使用 AVAudioPlayer 播放 MP3 文件。该文件似乎正在播放,但设备上没有声音输出。不过,它在 iOS 模拟器中运行良好。
文件.h:
#import "UIKit/UIKit.h"
#import "AVFoundation/AVFoundation.h"
@interface ViewController : UIViewController <AVAudioPlayerDelegate>
@property (strong, nonatomic) AVAudioPlayer *player;
@end
文件.m:
#import "ViewController.h"
@implementation ViewController
@synthesize player;
- (void)viewDidLoad {
[super viewDidLoad];
NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:@"beep_7" ofType:@"mp3"];
NSLog(@"Audio path: %@", soundFilePath);
NSError *error;
player =[[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:soundFilePath] error:&error];
if (error) {
NSLog(@"Error in audioPlayer: %@",[error localizedDescription]);
}
else {
[player setDelegate:self];
[player setNumberOfLoops:3]; //just to make sure it is playing my file several times
player.volume = 1.0f;
if([player prepareToPlay]) //It is always ready to play
NSLog(@"It is ready to play");
else
NSLog(@"It is NOT ready to play ");
if([player play]) //It is always playing
NSLog(@"It should be playing");
else
NSLog(@"An error happened");
}
}
@end