将UIView移动到另一个UIView

Question

I have an UIViewController which contains 2 UIScrollViews , scrollView1 , scrollView2 for instance.

scrollView1 contains many UIViews , when tapping one of it's UIViews I want it to move into scrollView2

When tapping a UIView that belongs to scrollView1 , a method inside the UIViewController is being called and the view is passed as a parameter.

Answer 1

In that method you should write something like:

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

Edit :

For animated move you should try something like:

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

Supposing you have these two scrollViews declared as properties:

- (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];
}