Question

Let’s imagine that I have 2 UIScrollViews with different UIImageViews inside. When I trigger an action I would like the contents, parameters etc (besides the location) of the 2nd UIScrollView to be passed onto the 1st UIScrollView.

So, here’s the code that I’ve come up with:

-(void) someAction {
UIScrollView * scroll = [[UIScrollView alloc] init]; // create an intermediary scrollView
scroll = secondScroll; // here I intent to pass the content of secondScroll to scroll
scroll.frame = firstScroll.frame; // here I assign the frame of firstScroll to scroll
so that it doesn't take the frame of secondScroll;
firstScroll =scroll;  // and then pass all the contents of scroll to firstScroll;     
}

But when I execute that and trigger the action, the firstScroll seems to take the content of secondScroll, but secondScroll seems to be deleted. I need it to stay as is.

Any help?

Thanks

Answer 1

@jrtc27 Thanks for your answer. I think I’ve found a solution and it seems to accomplish what I’m looking for. But I’m not sure if it’s the right way or not. Here’s what I do:

- (void)someAction {
    [[firstScroll subviews] makeObjectsPerformSelector:@selector(removeFromSuperView:);//here I sort of blank out the content of the firstScroll
    NSArray * array = [secondScroll subviews];//place all subview of the secondScroll in array
    int i = 0;
    int nrOfSubviews = [array count];
    for (i=0;i<nrOfSubviews;i++) { //appoint them one by one to firstScroll
        [firstScroll addSubview:[array objectAtIndex:i]];
    }
}