Question

我有两种类型的识别器，一种用于点按，一种用于滑动

UIGestureRecognizer *recognizer;

//TAP
recognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(numTap1:)];
[(UITapGestureRecognizer *)recognizer setNumberOfTouchesRequired:1];
[self.view addGestureRecognizer:recognizer];
self.tapRecognizer = (UITapGestureRecognizer *)recognizer;
recognizer.delegate = self;
[recognizer release];

//SWIPE RIGHT
recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeRight:)];
self.swipeRightRecognizer =(UISwipeGestureRecognizer *)recognizer;
swipeRightRecognizer.direction = UISwipeGestureRecognizerDirectionRight;
[self.view addGestureRecognizer:swipeRightRecognizer];
self.swipeRightRecognizer = (UISwipeGestureRecognizer *)recognizer;
[recognizer release];

使用此功能，我可以禁用某些对象的点按。

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {

if ((touch.view == loseView) || (touch.view == subBgView) || (touch.view == btnAgain)) {

    return NO;
}

return YES;
}

如何禁用滑动？

非常感谢！

Answer 1

UIGestureRecognizer有一个名为enabled的媒体资源。这应该足以禁用你的滑动：

swipeGestureRecognizer.enabled = NO;

Answer 2

为什么不设置滑动手势识别器的委托，并在同一委托方法中处理它们。

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
    if ( [gestureRecognizer isMemberOfClass:[UITapGestureRecognizer class]] ) {
        // Return NO for views that don't support Taps
    } else if ( [gestureRecognizer isMemberOfClass:[UISwipeGestureRecognizer class]] ) {
        // Return NO for views that don't support Swipes
    }

    return YES;
}

Answer 3

我有类似的问题。我的一些残障用户同时点击并滑动，因此应用移动到下一个屏幕。我设置了一个选项，允许他们使用三指水龙头代替。我需要调用popoverControllerDidDismissPopover委托选项以及应用程序首次启动时。所以我写了一个结合上面答案的方法。它会查找所有滑动手势识别器并将其关闭，然后打开我的点击手势识别器。

- (void)changeGestureRecognizer {
    // Three finger tap to move to next screen
    if ([Globals sharedInstance].useDoubleTapToMoveToNextScreen) {

        // Let’s see which gestures are active and turn off the swipes
        for (UIGestureRecognizer *gestureRecognizer in self.view.gestureRecognizers) {
            NSLog(@"The gestureRecognizer is %@", gestureRecognizer);
            if ( [gestureRecognizer isMemberOfClass:[UISwipeGestureRecognizer class]] ) gestureRecognizer.enabled = NO;
        }
        // Add the three finger tap
        UITapGestureRecognizer *twoFingerTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeNext)];
        [twoFingerTap setNumberOfTapsRequired:1];
        [twoFingerTap setNumberOfTouchesRequired:3];
        [self.view addGestureRecognizer:twoFingerTap];

    }
}

禁用手势识别器

3 个答案: