UIGestureRecognizer iOS

Question

我试图在我的视图中添加一个UIGestureRecognizer。它没有受到任何接触。我就是这样做的：

@interface SettingsView()<UIGestureRecognizerDelegate>
@property (nonatomic, strong) UIView *menu;
@end

@implementation FRMSettingsView

- (id)initWithSize:(CGPoint)size {
    if (self = [super initWithFrame:[[UIScreen mainScreen] bounds]]) {
        self.menu = [[UIView alloc]initWithFrame:CGRectMake(-size.x, 0, size.x, size.y)];
        self.menu.backgroundColor = [UIColor whiteColor];
        self.menu.UserInteractionEnabled = YES;
        [self addSubview:self.menu];

        UISwipeGestureRecognizer *recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(SwipeRecognizer:)];
        recognizer.direction = UISwipeGestureRecognizerDirectionRight;
        recognizer.numberOfTouchesRequired = 1;
        recognizer.delegate = self;
        [self.menu addGestureRecognizer:recognizer];
    }
    return self;
}

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
    NSLog(@"touch");

    return YES;
}

- (void) SwipeRecognizer:(UISwipeGestureRecognizer *)sender {
    NSLog(@"swipe");
}

我没有得到任何输出。无论是触碰还是滑动。我不知道我做错了什么。我对每一个帮助都很高兴

Answer 1

只要稍加调整，您的代码就能工作。在我看来奇怪的是你的视图的框架，它将关闭屏幕。如果它没有屏幕，你怎么能触摸到它？尝试更改背景颜色(例如，红色)，以便您可以看到视图，并将该-size.x更改为0，以便视图在屏幕上。

Answer 2

好了！问题是，我的观点正从屏幕外的动画中移开。视图是移动的，但不是GesturRrecognizer。当我将视图的startPosition设置为x=0和y=0时，它可以工作。

谢谢你的帮助梅奥！