tvOS如何识别Objective C的远程手势？

Question

我将如何使用Objective C for tvOS识别远程轻扫和按钮轻击？我发现到处都有Swift，但我还不习惯。

谢谢！

Answer 1

您示例中的Swift代码：

let swipeDown:UISwipeGestureRecognizer = UISwipeGestureRecognizer(target: self, action: Selector("swipedDown:"))
swipeDown.direction = .Down
view.addGestureRecognizer(swipeDown)

func swipedDown(sender:UISwipeGestureRecognizer){
    NSLog("It worked")
}

斯威夫特5：

let swipeDown:UISwipeGestureRecognizer = UISwipeGestureRecognizer(target: self, action: Selector("swipedDown:"))
swipeDown.direction = .down
view.addGestureRecognizer(swipeDown)

func swipedDown(sender:UISwipeGestureRecognizer){
    NSLog("It worked")
}

转换为目标C：

- (void)viewDidLoad {
    [super viewDidLoad];

    UISwipeGestureRecognizer *recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeDown:)];
    recognizer.direction = UISwipeGestureRecognizerDirectionDown;
    [self.view addGestureRecognizer:recognizer];
}

- (void)swipeDown:(UISwipeGestureRecognizer *)sender
{
    NSLog(@"It works");
}

哪个似乎有效：