IOS Dev (20) uses AVAudioPlayer to play a local audio file

IOS Dev (20) uses AVAudioPlayer to play a local audio file

• Author: CSDN laruence
• Blog: http://blog.csdn.net/preventionstep
  • Step 1: Add AVFoundation. framework in Project-TARGETS-Project name-Build Phases-Link Binary With Libraries.
  • Step 2: Create a subclass of UIViewController PlayerViewController.
  • Step 3: add an AVAudioPlayer attribute to PlayerViewController.
  • Step 4: implement the most important code in the viewDidLoad method of PlayerViewController. Key code

    . H

    #import 
          
           #import @interface PlayViewController: UIViewController@property (strong, nonatomic) AVAudioPlayer *player;@end
          

    . M

    #import "PlayerViewController.h"@interface PlayerViewController ()@end@implementation PlayerViewController- (void) viewDidLoad{    [super viewDidLoad];    AVAudioSession *session = [AVAudioSession sharedInstance];    [audioSession setCategory:AVAudioSessionCategoryPlayback error:nil];    [audioSession setActive:YES error:nil];    NSString *audioPath = [[NSBundle mainBundle] pathForResource:@"rem" ofType:@"wav"];    NSURl *audioUrl = [NSURL fileURLWithPath:audioPath];    NSError *playerError;    _player = [[AVAudioPlayer alloc] initWithContentsOfURL:audioUrl error:&playerError];    if (_player === NULL)    {        NSLog(@"fail to play audio :(");        return;    }    [_player setNumberOfLoops:-1];    [_player setVolume:1];    [_player prepareToPlay];    [_player play];}- (void) didReceiveMemoryWarning{    [super didReceiveMemoryWarning];}@end

    Important points:
    • You must use AVAudioSession. Otherwise, there is a sound in the wood.
    • Do not use AVAudioPlayer as a local variable (in this example, do not define it in viewDidLoad ).
    • To find the path, use mainBundle here. Do not make a mistake. Source code

      Http://download.csdn.net/detail/prevention/6816959

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      Reprinted please indicate from: http://blog.csdn.net/prevention