Question

我有一个imageview，我只想点击imageview的一面。是否可以为手势设置框架？任何人都可以帮助解决方案吗？

Answer 1

使用UIGestureRecognizerDelegate，我认为您可以了解如何比较：

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
    if ([touch locationInView:yourview].x < somePoint.x) {
        return false;
    } else {
        return true;
    }
}

Answer 2

您可以在图像视图顶部叠加视图，并将点击识别器添加到此新视图中，这样的内容将使图像的左侧可以轻触

UIView tapView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, imageView.frame.size.width/2, imageView.frame.size.height)];

[imageView addSubView:tapView]

UITapGestureRecognizer *singleFingerTap = 
  [[UITapGestureRecognizer alloc] initWithTarget:self 
                                          action:@selector(handleSingleTap:)];
[tapView addGestureRecognizer:singleFingerTap];

Answer 3

你可以根据你的要求简单地将UIView放在你的imageView顶部，然后在那个UIView上点击手势。

您可以通过storyboard / xib或通过编程方式执行此操作。

通过编程方式，例如 - 您只想在imageView的宽度为50像素的区域内点按。为此：

    UIView *vw = [[UIView alloc] initWithFrame:CGRectMake(imgView.frame.origin.x, imgView.frame.origin.y, 50, imgView.frame.size.height)];

    // add gesture to view
    UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapGesture:)];
    tapGesture.numberOfTapsRequired = 2;
    [vw addGestureRecognizer:tapGesture];

    [imgView addSubview:vw];

现在处理你的双击

-(void)handleTapGesture:(UITapGestureRecognizer *)gesture
{
    // handle double tap
}

如何为TapGesture Recognizer设置框架

3 个答案: