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PODisable scrolling via IBAction contained in subview
 

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    <p>My iPad app is currently built as such: xml data is pulled from my website and parsed in a View Controller "FishIDView". This view controller has a UIScrollView "scrollView" that has a subview "XMLView" which is a UIView. scrollView is setup so that it scrolls and pages through the XMLViews based on the number of items contained in the XML. For example 12 items = 12 pages, or instances of XMLView. These pages contain photos of individual fish. Each of these pages contain a button that creates a subview of the UIView "XMLView" called "flipView", and displays the subview via the flip from left animated transition. This subview contains information about the pictured fish. flipView has a button that returns the user (flips back) to the fish picture. </p> <p>My problem is that when I'm looking at the flipView (which is a subview of XMLView which is a subview of scrollView), scrolling is still enabled. If I scroll left or right while on flipView, I see the XMLView of the next fish. I want scrolling to be disabled while looking at flipView. </p> <p>Any suggestions on what I can do to send something like a setScrollEnabled:NO command to scrollView (on FishIDView) from the subview?</p> <p><strong>EDIT:</strong></p> <p>So I assume I need to use a protocol and delegate. I thought I could figure it out, but I'm getting caught up on the implementation.</p> <p>In my XMLView.h (leaving out extraneous code):</p> <pre><code>@protocol XMLViewDelegate &lt;NSObject&gt; - (void) stopScrolling; @end @interface XMLView : UIView { ... id secondDelegate; } ... @property (nonatomic, retain) id &lt;XMLViewDelegate&gt; secondDelegate; ... @end </code></pre> <p>Then in my XMLView.m (with the IBAction hooked to a UIButton which works correctly):</p> <pre><code>... @synthesize secondDelegate; ... -(IBAction)goToInfo { //[self newPage]; [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:1.0]; [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self cache:YES]; [self.secondDelegate stopScrolling]; [self addSubview:flipView]; ... NSLog(@"button pressed"); } </code></pre> <p>In FishIDView.h:</p> <pre><code>@interface FishIDView : UIViewController &lt;XMLViewDelegate&gt; </code></pre> <p>FishIDView.m:</p> <pre><code>- (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. [scrollView setScrollEnabled:YES]; XMLView *subsubView = [[XMLView alloc] init]; subsubView.secondDelegate = self; ... } -(void) stopScrolling { [scrollView setScrollEnabled:NO]; NSLog(@"NO more scrolling!!!"); } </code></pre> <p>When I click on my button in XMLView that triggers "goToInfo", the rest of the action happens, but the log "No more scrolling!!" never displays.</p> <p>Did I go about this the wrong way? I'm still trying to figure out delegates, so I may be completely wrong with this methodology.</p> <p><strong>EDIT 2:</strong></p> <p>I've now tried getting rid of the delegate and going what sounds like a more simplistic route, but it's still not working correctly.</p> <p>In XMLView.m:</p> <pre><code>-(IBAction)goToInfo { [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:1.0]; [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self cache:YES]; //The next 2 lines are what I added ViewController *mainView = [[ViewController alloc] init]; [mainView stopScrolling]; [self addSubview:flipView]; [infoButton setEnabled:FALSE]; [infoButton setHidden:YES]; [title setHidden:YES]; [UIView commitAnimations]; NSLog(@"button pressed"); } </code></pre> <p>Then in FishIDView.h</p> <pre><code>-(void) stopScrolling; </code></pre> <p>FishIDView.m</p> <pre><code>-(void) stopScrolling { [scrollView setScrollEnabled:NO]; NSLog(@"NO more scrolling!!!"); } </code></pre> <p>The "No more scrolling!!!" prints, but scrollView is still scroll enabled! Why would it run the NSLog portion of stopScrolling but not setScrollEnabled:NO? Can anyone help me? </p>
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