ios - UISwipeGestureRecognizer在iOS模拟器中不起作用

我使用了以下代码，但是当我运行程序时，滑动不起作用。

首先，我在接口部分添加了手势识别器协议

#import <UIKit/UIKit.h>

@interface BNRViewController : UIViewController <UIGestureRecognizerDelegate>

@property (nonatomic,strong) IBOutlet UILabel *swipe;

@end

现在，我在工具部分实例化了滑动手势识别器

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.

    UISwipeGestureRecognizer *swipeUp = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(fingerSwipe:)];

    swipeUp.numberOfTouchesRequired = 3;
    swipeUp.direction = UISwipeGestureRecognizerDirectionUp;
    [self.view addGestureRecognizer:swipeUp];

}

谁能帮我吗

最佳答案

除非您在标签上将 userInteractionEnabled设置为YES ，否则手势识别器将无法工作。
因此，您必须添加此行[swipe setUserInteractionEnabled:YES];，它已在工作，我已经检查过。

UISwipeGestureRecognizer *swipeUp = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(fingerSwipe:)];

[swipe setUserInteractionEnabled:YES];

swipeUp.numberOfTouchesRequired = 1;
swipeUp.direction = UISwipeGestureRecognizerDirectionUp;
[self.view addGestureRecognizer:swipeUp];

关于ios - UISwipeGestureRecognizer在iOS模拟器中不起作用，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/23308232/