我分配初始化后 AVAudioPlayer 为零

Question

我在我的项目中被困在 AVAudioPlayer。情况是， 在 CollectionViewController 的“didSelectItemAtIndexPath”方法中，我像下面这样分配和初始化 AVAudioPlayer，

dict=[plist objectAtIndex:indexPath.item];

    NSURL* urlPath=[NSURL new];
    urlPath=[NSURL URLWithString:[dict objectForKey:@"FilePath"]];
     NSError *error = nil;
    self.player=[[AVAudioPlayer alloc]initWithContentsOfURL:urlPath error:&error];
    NSLog(@"Error[%@]",[error localizedDescription]);
    [self.player setDelegate:self];
    [self.player prepareToPlay];

但在此之后，它仍然是空的.. 首先，我尝试不让玩家拥有财产。但没有运气.... 所以我尝试使用this

Answer 1

这样试试

-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath  {


    NSLog(@" selected data ==%@",[yoururlarray objectAtIndex: indexPath.row]);

 urlPath=[yoururlarray objectAtIndex: indexPath.row]);

    self.player=[[AVAudioPlayer alloc]initWithContentsOfURL:urlPath error:nil];
    [self.player setDelegate:self];
    [self.player prepareToPlay];


    }