在文档加载音频时的UITableView＆QUOT;细胞QUOT;是pressed [英] Load audio in DOCUMENTS when UITableView "cell" is pressed

问题描述

我有一个UITableView在Documents目录显示LLIST F文件的...我希望它发挥的Documents目录的音频文件时pressed ...

它运行没有errores但不播放音频时pressed ...

   - （空）的tableView：（UITableView的*）的tableView didSelectRowAtIndexPath方法：（NSIndexPath *）indexPath {NSArray的*路径= NSSearchPathForDirectoriesInDomains（NSDocumentDirectory，NSUserDomainMask，YES）;
的NSString * documentsDirectory = [路径objectAtIndex：0];
的NSString *文件名= [documentsDirectory stringByAppendingPathComponent：[的NSString stringWithFormat：@％d.caf，indexPath.row + 1];
NSURL * audioURL = [NSURL URLWithString：文件名]。NSData的* audioData = [NSData的dataWithContentsOfURL：audioURL];NSError *错误;_audioPlayer = [[AVAudioPlayer页头] initWithContentsOfURL：audioURL错误：＆放大器;错误]    _audioPlayer.delegate =自我;
        [_audioPlayer玩]
}
 

解决方案

更改此行：

  NSURL * audioURL = [NSURL URLWithString：文件名]。
 

这样：

  NSURL * audioURL = [NSURL fileURLWithPath：文件名isDirectory：NO];
 

然后就去做：

 如果（_audioPlayer ==无）
    {
        _audioPlayer = [[AVAudioPlayer页头] initWithContentsOfURL：audioURL错误：无];
    }
    其他
    {
        _audioPlayer = [self.audioAlert initWithContentsOfURL：audioURL错误：无];
    }
 

I have a UITableView displaying a llist f files in the Documents Directory... and I want it to play the audio file in the Documents directory when pressed...

It runs with no errores but doesn't play the audio when pressed...

    - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *fileName = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%d.caf",indexPath.row+1]];
NSURL *audioURL = [NSURL URLWithString:fileName];

NSData *audioData = [NSData dataWithContentsOfURL:audioURL];

NSError *error;

_audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:audioURL error:&error];

    _audioPlayer.delegate = self;
        [_audioPlayer play];
}

解决方案

Change this line:

NSURL *audioURL = [NSURL URLWithString:fileName];

to this:

NSURL *audioURL = [NSURL fileURLWithPath:fileName isDirectory:NO];

And then just do:

 if(_audioPlayer == nil)
    {
        _audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:audioURL error:nil];
    }
    else
    {
        _audioPlayer = [self.audioAlert initWithContentsOfURL:audioURL error:nil];
    }

这篇关于在文档加载音频时的UITableView＆QUOT;细胞QUOT;是pressed的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！