Question

我收到以下错误消息...

由于未捕获的异常而终止应用 'NSInvalidArgumentException'，原因：' - [YTPlayerView playerView]：无法识别的选择器发送到实例0x7fd77bd41f80'

这是我的代码..

- (void)applicationDidEnterBackground:(NSNotification *)notification
{   
    [_playerView performSelector:@selector(playerView) withObject:nil afterDelay:0.1];

}

- (IBAction)didTapPlayPause:(id)sender {
    self.btnPlayPause.selected = !self.btnPlayPause.selected;
    if (self.btnPlayPause.selected)
    {
        self.title=self.strngvideotitle;
        self.playerView=[[YTPlayerView alloc]initWithFrame:CGRectMake(0,0,375,290)];
        [self.playerView loadWithVideoId:self.strngvideoId];
        [self.view addSubview:_playerView];

      [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationDidEnterBackground:) name:UIApplicationDidEnterBackgroundNotification object:nil];

   }

Answer 1

您的代码在此声明中失败

[_playerView performSelector:@selector(playerView) withObject:nil afterDelay:0.1];

该语句希望您的_playerView对象在延迟0.1秒后调用方法playerView。但是类YTPlayerView没有名为playerView的方法。您可能想要检查实际的方法名称并将其替换为选择器名称。

如何在iOS应用中使用YTPlayer在后台播放视频？

1 个答案: