Question

我正在开发一个应用程序，它的工作方式类似于Game Console，机顶盒等不同设备的遥控器。

应用程序包含不同类型的控件，如手势和按钮，可以将事件作为远程执行。

单个手势视图包含多个手势识别器，如下所示：

1根手指点击使用UITapGestureRecognizer
2指使用UITapGestureRecognizer
使用UISwipeGestureRecognizer进行1次手指轻扫
使用UISwipeGestureRecognizer进行2次手指滑动

我的要求是实现1个手指滑动手势识别器以及保持事件。因此，这将继续我的滑动操作，直到用户不会从视图中移除其手指。

我在UISwipeGestureRecognizer之后尝试过UILongPressGestureRecognizer，但这对我不起作用，因为它与Swipe运动一起执行。滑动结束后我想要这个，但手指不会移除。

我的代码段：

-(void) gestureView:(UIView*)viewGesture {
    UISwipeGestureRecognizer *swipeGestureSingleRight;
    UISwipeGestureRecognizer *swipeGestureSingleLeft;
    UISwipeGestureRecognizer *swipeGestureSingleUp;
    UISwipeGestureRecognizer *swipeGestureSingleDown;

    swipeGestureSingleUp = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGestureSingle_Handle:)];
    [swipeGestureSingleUp setDelegate:self];
    [swipeGestureSingleUp setDirection:(UISwipeGestureRecognizerDirectionUp)];
    [swipeGestureSingleUp setNumberOfTouchesRequired:1];
    [viewGesture addGestureRecognizer:swipeGestureSingleUp];

    swipeGestureSingleDown = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGestureSingle_Handle:)];
    [swipeGestureSingleDown setDelegate:self];
    [swipeGestureSingleDown setDirection:(UISwipeGestureRecognizerDirectionDown)];
    [swipeGestureSingleDown setNumberOfTouchesRequired:1];
    [viewGesture addGestureRecognizer:swipeGestureSingleDown];

    swipeGestureSingleRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGestureSingle_Handle:)];
    [swipeGestureSingleRight setDelegate:self];
    [swipeGestureSingleRight setDirection:(UISwipeGestureRecognizerDirectionRight)];
    [swipeGestureSingleRight setNumberOfTouchesRequired:1];
    [viewGesture addGestureRecognizer:swipeGestureSingleRight];

    swipeGestureSingleLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeGestureSingle_Handle:)];
    [swipeGestureSingleLeft setDelegate:self];
    [swipeGestureSingleLeft setDirection:(UISwipeGestureRecognizerDirectionLeft)];
    [swipeGestureSingleLeft setNumberOfTouchesRequired:1];
    [viewGesture addGestureRecognizer:swipeGestureSingleLeft];

    longPressGestureOnSwipe = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressGesture_Handle:)];
    longPressGestureOnSwipe.minimumPressDuration = 0.03;
    longPressGestureOnSwipe.delegate = self;
    [viewGesture addGestureRecognizer:longPressGestureOnSwipe];
    isSwipeEnd = false;
    [longPressGestureOnSwipe setEnabled:isSwipeEnd];
}

- (void)swipeGestureSingle_Handle:(UISwipeGestureRecognizer*)sender {
    if (sender.state == UIGestureRecognizerStateEnded) {
        singleTouchSwipeSenderDirection = sender.direction;
        isSwipeEnd = true;
        [longPressGestureOnSwipe setEnabled:isSwipeEnd];
    }
}

-(void)longPressGesture_Handle:(UILongPressGestureRecognizer*)sender {
    if (sender.state == UIGestureRecognizerStateEnded) {
        isSwipeEnd = false;
        [longPressGestureOnSwipe setEnabled:isSwipeEnd];
    }
}

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
    return YES;
}

- (void)touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event {
    if (isSwipeEnd) {
        [super touchesBegan:touches withEvent:event];
    } else {
        return;
    }
}

请建议我纠正或解决我的要求。

提前致谢！

如何在Objective-C中实现滑动和保持手势识别器？

我的代码段：

0 个答案: