Question

我有一个基于UIView的对象，我已设置识别滑动手势。视图中间有另一个基于UIView的对象。

当我向左或向右滑动时，无论我放在哪里，都会触发正确的事件。

当我向上或向下滑动正确的事件时，如果我的手指没有在中间的子视图中启动，则只会触发？

为什么？

这是对象的初始化代码：

- (id)init
{
    self = [super init];
    if (self) {
        [self setFrame:CGRectMake(0,
                                  0,
                                  [self getScreenWidth],
                                  [self getScreenHeight])];
        backView = [[UIView alloc] initWithFrame:CGRectMake(0,
                                                            0,
                                                            [self getScreenWidth],
                                                            [self getScreenHeight])];
        backView.backgroundColor = [UIColor whiteColor];
        [self addSubview:backView];
        [self bringSubviewToFront:backView];

        theCard = [[actCard alloc] init:CARD_POS_CENTER];
        [backView addSubview:theCard];
        [backView bringSubviewToFront:theCard];

        swipeLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self
                                                              action:@selector(showGestureForSwipeRecognizer:)];
        swipeRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self
                                                               action:@selector(showGestureForSwipeRecognizer:)];
        swipeUp = [[UISwipeGestureRecognizer alloc] initWithTarget:self
                                                            action:@selector(showGestureForSwipeRecognizer:)];
        swipeDown = [[UISwipeGestureRecognizer alloc] initWithTarget:self
                                                              action:@selector(showGestureForSwipeRecognizer:)];
        [swipeLeft setDirection:UISwipeGestureRecognizerDirectionLeft];
        [self addGestureRecognizer:swipeLeft];
        [swipeRight setDirection:UISwipeGestureRecognizerDirectionRight];
        [self addGestureRecognizer:swipeRight];
        [swipeUp setDirection:UISwipeGestureRecognizerDirectionUp];
        [self addGestureRecognizer:swipeUp];
        [swipeDown setDirection:UISwipeGestureRecognizerDirectionDown];
        [self addGestureRecognizer:swipeDown];
        NSLog(@"Enabled: %d",swipeLeft.isEnabled);
        NSLog(@"Enabled: %d",swipeRight.isEnabled);
        NSLog(@"Enabled: %d",swipeUp.isEnabled);
        NSLog(@"Enabled: %d",swipeDown.isEnabled);

    }
    return self;
}

Answer 1

尝试将向上滑动和向下滑动的代理设置为您的MainViewController。如：

swipeDown .delegate  =   self;
swipeUp .delegate = self;

这应该使您的主视图控制器（包含辅助UIView）负责接收的手势。

希望这有帮助！

Answer 2

明显！我真是个新手。 UITextView仍然具有scrollEnabled。这意味着UITextView采用了up＆amp;在滑动时，他们不会被传递到视图中。

向左滑动＆amp;右边一直工作，但向上/向下滑动不起作用

2 个答案: