将UIView移动到另一个UIView

Question

我有一个UIViewController，其中包含2个UIScrollViews，scrollView1，scrollView2。

scrollView1包含许多UIViews，当点击其中一个UIViews时，我希望它移入scrollView2

点击属于UIView的{​​{1}}时，会调用scrollView1内的方法，并将UIViewController作为参数传递。

Answer 1

在那种方法中你应该写一些类似的东西：

[view removeFromSuperview];
[scrollView2 addSubview:view];

修改：

对于动画动作，你应该尝试类似：

CGPoint originalCenter = [self.view convertPoint:view.center fromView:scrollView1];
[view removeFromSuperView];
[self.view addSubview:view];
view.center = originalCenter;

CGPoint destinationPointInSecondScrollView = ; // Set it's value
CGPoint finalCenter = [self.view convertPoint:destinationPointInSecondScrollView fromView:scrollView2];
[UIView animateWithDuration:0.3
                      delay:0
                    options:UIViewAnimationOptionCurveEaseInOut
                 animations:^{
                     view.center = finalCenter;
                 } completion:^(BOOL finished) {
                         [view removeFromSuperView];
                         [scrollView2 addSubview:view];
                         view.center = destinationPointInSecondScrollView;
                     }];

Answer 2

假设您将这两个scrollView声明为属性：

- (void)viewDidLoad
{
    [super viewDidLoad];

    UITapGestureRecognizer *gesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(viewTapped:)]
    for (UIView *view in self.scrollView1.subviews) {
        [view addGestureRecognizer:gesture];
    }
}

- (void)viewTapped:(UITapGestureRecognizer *)gesture
{
    UIView *view = gesture.view;
    [self moveToScrollView2:view];
}

- (void)moveToScrollView2:(UIView *)view
{
    [view removeFromSuperview];
    [self.scrollView2 addSubview:view];
}