我在if語句中以紅色statement requires expression of scalar type ('void' invalid)
得到警告消息。聲明需要表達標量類型('void'無效)
- (void)displayviewsAction:(id)sender
{
FirstViewController *viewController = [[FirstViewController alloc] init];
viewController.view.frame = CGRectMake(0, 0, 320, 480);
[self.view addSubview:viewController.view];
[self.view addSubview:toolbar];
if ([audioPlayer pause]){
[timer invalidate];
} else {
self.timer = [NSTimer scheduledTimerWithTimeInterval:23 target:self selector:@selector(secondViewController) userInfo:nil repeats:NO];
}
[viewController release];
}
任何想法如何解決它。
感謝您的幫助。
因此,沒有audioPlayer返回一個值? – 2012-03-16 23:37:18