I am implementing a sliding drawer on iOS5 (iPad). I have created the drawer by subclassing UIView. The drawer is added to the main view, which works fine. However, when I try to slide the drawer on/off screen using a swipe gesture and setFrame, the drawer does not move.
I believe I have implemented the gesture recognizer correctly, and the frame is also being set correctly. However, the drawer just does not move. Any thoughts on what I am doing wrong?
Below is my code:
The following method is called from viewDidLoad from my controller:
- (void)loadVerticalDrawer
{
NSLog(#"LoadVerticalDrawer Executed");
verticalDrawerHidden = YES;
if (verticalDrawerHidden) {
verticalDrawer = [[VerticalDrawer alloc] initWithFrame:CGRectMake(514, 250, 60, 248)];//adjust verticalDrawer height and width here;
} else {
verticalDrawer = [[VerticalDrawer alloc] initWithFrame:CGRectMake(464, 250, 60, 248)];//adjust verticalDrawer height and width here;
}
verticalDrawer.appsManager = appsManager;
verticalDrawer.delegate = self;
[self.view addSubview:verticalDrawer];
}
The following is also called from viewDidLoad:
rightDrawerLeftSwipe = [[[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(rightDrawerHandleSwipeLeft:)] autorelease];
rightDrawerLeftSwipe.direction = UISwipeGestureRecognizerDirectionLeft;
rightDrawerLeftSwipe.numberOfTouchesRequired = 1;
rightDrawerLeftSwipe.delegate = self;
[verticalDrawer addGestureRecognizer:rightDrawerLeftSwipe];
rightDrawerRightSwipe = [[[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(rightDrawerHandleSwipeRight:)] autorelease];
rightDrawerRightSwipe.direction = UISwipeGestureRecognizerDirectionRight;
rightDrawerRightSwipe.numberOfTouchesRequired = 1;
rightDrawerRightSwipe.delegate = self;
[verticalDrawer addGestureRecognizer:rightDrawerRightSwipe];
FInally, this is the handler for the Right Swipe:
-(void) rightDrawerHandleSwipeRight:(UISwipeGestureRecognizer*) recognizer
{
if (recognizer.state == UIGestureRecognizerStateEnded)
{
if (!verticalDrawerHidden){
verticalDrawerHidden = YES;
float x = verticalDrawer.frame.origin.x;
float y = verticalDrawer.frame.origin.y;
float width = verticalDrawer.frame.size.width;
float height = verticalDrawer.frame.size.height;
NSLog(#"Swipe left, Vertical drawer, x=%f, y=%f, width=%f, height=%f:", x,y,width,height);
x+=50;
[verticalDrawer setFrame:CGRectMake(x,y,width,height)];
NSLog(#"Swipe left, Vertical drawer, x=%f, y=%f, width=%f, height=%f:", x,y,width,height);
return;
}
else {
return;
}
}
}
Please note that the frame of verticalDrawer is being set correctly (and the swipe handler is being called as desired), as per the logs, its just that the view is not moving at all!!
Related
while presenting the search controller i am setting the showScopeBar property to hide or show the scope bar
- (void)willPresentSearchController:(UISearchController *)searchController {
// do something before the search controller is presented
NSMutableArray *scopeArray = #[#"All"].mutableCopy;
UISearchBar *searchBar =_searchController.searchBar;
if (![labelDepartmentSelection.text isEqualToString:#"Department"]) {
[scopeArray addObject:#"Department"];
}
if (![labelJobSelection.text isEqualToString:#"Job"]) {
[scopeArray addObject:#"Job"];
}
searchBar.scopeButtonTitles = scopeArray;
searchBar.showsScopeBar = scopeArray.count>1;
[searchBar layoutIfNeeded];
NSArray *subviews = searchBar.subviews;
if([[UIDevice currentDevice].systemVersion floatValue]>=7.0) {
//Get search bar with scope bar to reappear after search keyboard is dismissed
UIView *scopeBar = [subviews.firstObject subviews].firstObject;
[scopeBar setHidden:NO];
CGRect frame = scopeBar.frame;
frame.origin.y = frame.origin.y = 64.0;
scopeBar.frame = frame;
}
[searchBar layoutSubviews];
[searchBar sizeToFit];
[serviceOptionTableView setContentInset:UIEdgeInsetsMake(scopeArray.count>1?44:0, 0, 0, 0)];
serviceOptionTableView.tableHeaderView = searchController.searchBar;
}
and when i simply hide and show the scope bar base on the scope titles i want it giet distorted
here is the case for this
- (void)willPresentSearchController:(UISearchController *)searchController {
// do something before the search controller is presented
NSMutableArray *scopeArray = #\[#"All"\].mutableCopy;
UISearchBar *searchBar =_searchController.searchBar;
if (!\[labelDepartmentSelection.text isEqualToString:#"Department"\]) {
\[scopeArray addObject:#"Department"\];
}
if (!\[labelJobSelection.text isEqualToString:#"Job"\]) {
\[scopeArray addObject:#"Job"\];
}
searchBar.scopeButtonTitles = scopeArray;
searchBar.showsScopeBar = scopeArray.count>1;
\[serviceOptionTableView setContentInset:UIEdgeInsetsMake(scopeArray.count>1?44:0, 0, 0, 0)\];
}
this is the image of case 2
The issue should fix itself if you remove the line:
searchBar.showsScopeBar = scopeArray.count>1;
Setting the showScopeBar property has a weird effect for some reason. Removing it allows the default animation behaviour without any issues.
In my navigation bar, I have a magnifying glass icon that brings up a search bar. I'm not using a UISearchDisplayController, so I opted to build my own UINavigationItem and then push it over the standard UINavigationItem using pushNavigationItem.
The problem is that the UINavigationItem seems to be pushed around 8 pixels to the right. This causes the cancel button (with localized text 'Annuleren') to be really close to the edge of the screen.
I tried inspecting the self.mySearchBar.bounds at runtime, but the origin is 0,0. I've played around a bit with AutoLayout and programmatically added constraints, but I haven't been successful. I hope it's possible without AutoLayout.
This is my code:
- (IBAction)displaySearchBar:(id)sender {
if (!self.mySearchNavigationItem)
{
self.mySearchNavigationItem = [[UINavigationItem alloc] initWithTitle:#""];
self.mySearchNavigationItem.hidesBackButton = YES;
self.mySearchBar = [[UISearchBar alloc] initWithFrame:CGRectZero];
self.mySearchBar.showsCancelButton = YES;
self.mySearchBar.delegate = self;
[self.mySearchBar sizeToFit];
[self.mySearchBar setPlaceholder:#"Zoeken..."];
UIView *barWrapper = [[UIView alloc]initWithFrame:self.mySearchBar.bounds];
[barWrapper addSubview:self.mySearchBar];
self.mySearchNavigationItem.leftBarButtonItem = nil;
self.mySearchNavigationItem.backBarButtonItem = nil;
self.mySearchNavigationItem.titleView = barWrapper;
UIButton *cancelButton;
UIView *topView = self.mySearchBar.subviews[0];
for (UIView *subView in topView.subviews) {
if ([subView isKindOfClass:NSClassFromString(#"UINavigationButton")]) {
cancelButton = (UIButton*)subView;
}
}
if (cancelButton) {
[cancelButton setTitle:#"Annuleren" forState:UIControlStateNormal];
}
}
[self.navigationController.navigationBar pushNavigationItem:self.mySearchNavigationItem animated:YES];
NSTimeInterval delay;
if (self.tableView.contentOffset.y >1000) delay = 0.4;
else delay = 0.1;
[self performSelector:#selector(activateSearch) withObject:nil afterDelay:delay];
}
try:
self.navigationController.navigationBar.barTintColor = self.mySearchBar.barTintColor;
if that doesn't work, you can add an underlay view to the navigation controller that is the color you would like. this may be useful: Get the right color in iOS7 translucent navigation bar
After searching for many hours, I gave up and went for a dirty fix. I'll leave it open for a while, in case someone knows why my searchbar is moved 8 pixels to the right.
Right before showing the UINavigationItem, I move the whole UINavigationBar to x-coordinate -8.
self.navigationController.navigationBar.frame = CGRectMake(-8.0, self.navigationController.navigationBar.frame.origin.y, self.navigationController.navigationBar.frame.size.width, self.navigationController.navigationBar.frame.size.height);
[self.navigationController.navigationBar pushNavigationItem:self.mySearchNavigationItem animated:YES];
And then on the cancel button click, I move it back to x-coordinate 0.
- (IBAction)cancelSearchBar:(id)sender {
[self.navigationController.navigationBar popNavigationItemAnimated:YES];
self.navigationController.navigationBar.frame = CGRectMake(0.0, self.navigationController.navigationBar.frame.origin.y, self.navigationController.navigationBar.frame.size.width, self.navigationController.navigationBar.frame.size.height);
}
I'm creating an app that can slide between pages of a book, left and right (covering or revealing like a card deck), and sliding up and down will either slide down (and cover) a settings page, or slide up (and reveal) to detailed info on the book.
Essentially, its a "card deck" Sliding functionality, similar to this project https://github.com/sweetmandm/CardSliderView-for-iOS which I'm considering using, however I require BOTH vertical AND horizontal "card deck" sliding capability.
To give you another example of the slide/left cover/reveal effect I'm looking, take a look at the new CNN app, where you can slide between articles.
I've also considered using UIPageViewController, however this does not support the "Slide and Reveal / Slide and Cover" transition I'm looking for, rather only a "Slide Over Left or Right" transition, so I would have to hack it somehow and use multiple UIPageViewControllers, one on top of the over, to allow the "reveal and cover" effect to work, using just the gestures from the UIPageViewController to allow the user to swipe.
I'm familiar with the directionalLockEnabled property on UIScrollview, however I'm wondering still what is the overall best approach to get the effect I'm looking for, one that will support both vertical and horizontal, UIScrollView? UIPageViewController? Nested UIScrollviews? Instead of playing around with the directionalLockEnabled property? Something Else?
What would be the best way to achieve the exact user experience I'm looking to provide?
Ok, I found a solution to my own question, using nested UIScrollViews. I also added a very rough solution as project to github: https://github.com/cohen72/InfiniteDeckScroller.
For the horizontal scrolling, I have three horizontal scroll views, one nested into the other. UIScrollview is automatically handling the proper scrolling of each. Depending on the content offset and which scrollview is being scrolled, I know how to "re-arrange/re-order" the nested scrollviews.
Here is a snippet of the solution I came up.
This particular solution allows sliding up to reveal, however I did not yet implement the sliding down to cover, however doing so would use the same approach as the horizontal solution.
#define BOTTOM 1
#define MIDDLE 2
#define TOP 3
#define VERTICAL_SUB 4
- (void)viewDidLoad{
[super viewDidLoad];
UIScrollView *scroll1 = [[UIScrollView alloc] initWithFrame:self.view.bounds];
UIScrollView *scroll2 = [[UIScrollView alloc] initWithFrame:self.view.bounds];
UIScrollView *scroll3 = [[UIScrollView alloc] initWithFrame:self.view.bounds];
UIScrollView *scroll4 = [[UIScrollView alloc] initWithFrame:self.view.bounds];
scroll1.contentSize = CGSizeMake(self.view.frame.size.width * 2, self.view.frame.size.height * 1);
scroll1.tag = BOTTOM;
scroll1.pagingEnabled = YES;
scroll1.bounces = NO;
scroll1.delegate = self;
[scroll1 addSubview:[self labelForScrollView:scroll1 withBgColor:[UIColor redColor]]];
[scroll1 setContentOffset:CGPointMake(0, 0)];
scroll2.contentSize = CGSizeMake(self.view.frame.size.width * 2, self.view.frame.size.height * 1);
scroll2.tag = MIDDLE;
scroll2.pagingEnabled = YES;
scroll2.bounces = NO;
scroll2.delegate = self;
[scroll2 addSubview:[self labelForScrollView:scroll2 withBgColor:[UIColor orangeColor]]];
[scroll2 setContentOffset:CGPointMake(0, 0)];
scroll3.contentSize = CGSizeMake(self.view.frame.size.width * 2, self.view.frame.size.height * 1);
scroll3.tag = TOP;
scroll3.pagingEnabled = YES;
scroll3.bounces = NO;
scroll3.delegate = self;
[scroll3 addSubview:[self labelForScrollView:scroll3 withBgColor:[UIColor yellowColor]]];
[scroll3 setContentOffset:CGPointMake(320, 0)];
scroll4.contentSize = CGSizeMake(self.view.frame.size.width * 1, self.view.frame.size.height * 2);
scroll4.delegate = self;
scroll4.bounces = NO;
scroll4.pagingEnabled = YES;
scroll4.alwaysBounceVertical = NO;
scroll4.tag = VERTICAL_SUB;
[scroll4 addSubview:scroll1];
[scroll1 addSubview:scroll2];
[scroll2 addSubview:scroll3];
[self.view addSubview:scroll4];
}
- (UILabel*)labelForScrollView:(UIScrollView*)scrollView withBgColor:(UIColor*)color{
UILabel *lbl = [[UILabel alloc] initWithFrame:scrollView.bounds];
lbl.textAlignment = NSTextAlignmentCenter;
lbl.backgroundColor = color;
lbl.text = [NSString stringWithFormat:#"ScrollView: %d", scrollView.tag];
return lbl;
}
-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
NSLog(#"content offset: %f, tag: %d ", scrollView.contentOffset.x, scrollView.tag);
UIScrollView *newMiddleScrollView, *newBottomScrollView, *newTopScrollView;
// swipe left
if (scrollView.contentOffset.x == 0 && scrollView.tag == TOP) {
newMiddleScrollView = (UIScrollView*)[self.view viewWithTag:TOP];
newTopScrollView = (UIScrollView*)[self.view viewWithTag:BOTTOM];
newBottomScrollView = (UIScrollView*)[self.view viewWithTag:MIDDLE];
}
// swipe right
else if (scrollView.contentOffset.x == 320 && scrollView.tag == MIDDLE) {
newMiddleScrollView = (UIScrollView*)[self.view viewWithTag:BOTTOM];
newTopScrollView = (UIScrollView*)[self.view viewWithTag:MIDDLE];
newBottomScrollView = (UIScrollView*)[self.view viewWithTag:TOP];
}
else {
return;
}
newMiddleScrollView.tag = MIDDLE;
newBottomScrollView.tag = BOTTOM;
newTopScrollView.tag = TOP;
newBottomScrollView.contentOffset = CGPointMake(0, 0);
newMiddleScrollView.contentOffset = CGPointMake(0, 0);
newTopScrollView.contentOffset = CGPointMake(320, 0);
UIScrollView *verticalScrollView_sub = (UIScrollView*)[self.view viewWithTag:VERTICAL_SUB];
[verticalScrollView_sub addSubview:newBottomScrollView];
[newBottomScrollView addSubview:newMiddleScrollView];
[newMiddleScrollView addSubview:newTopScrollView];
}
That's a good question - correct me if I'm wrong here, but it sounds that from left to right there's an arbitrary number of pages/cards, but only a few standard cards to come in from the top or bottom (your settings and details panels).
If that's the case, then you may well want to stick with something along the lines of a UIPageController alongside some gesture recognisers. You set up your page controller (or whatever controller you end up using to achieve your desired cards animation), and then add two gesture recognizers for swipe up and swipe down.
You can then animate your details/settings views in when you receive those gestures, giving you the card like interface without needing to bother with multiple UIPageViewControllers or a scroll view.
This approach isn't so great if you want an arbitrary number of cards in both the horizontal and vertical, but it sounds as if that's not the case.
There would be a lot of different ways to accomplish this, depending on how you want your different controllers to relate to each other. The slide transition itself is pretty simple. I've implemented it this way in a controller that's the superclass of the controller that calls the method:
-(void)SlideInController:(RDSlideController *) next {
next.presentingVC = self;
next.view.frame = CGRectMake(self.view.frame.origin.x + 320, self.view.frame.origin.y, self.view.frame.size.width, self.view.frame.size.height);
[self.view.window addSubview:next.view];
[UIView animateWithDuration:1 animations:^{
next.view.frame = self.view.frame;
} completion:^(BOOL finished) {
self.view.window.rootViewController = next;
}];
}
Then from the newly presented controller, you can call this method to go back:
-(void)SlideOut {
UIViewController *prev = self.presentingVC;
prev.view.frame = self.view.frame;
[self.view.window insertSubview:prev.view belowSubview:self.view];
[UIView animateWithDuration:1 animations:^{
self.view.frame = CGRectMake(self.view.frame.origin.x + 320, self.view.frame.origin.y, self.view.frame.size.width, self.view.frame.size.height);
} completion:^(BOOL finished) {
self.view.window.rootViewController = prev;
}];
}
I've got an image editor window. After drag event I minimize my window to miniature in the bottom left corner, after drop on the miniature I return window back. Above the miniature I change cursor to operationNotAllowedCursor.
The problem is: NSWindow does not change the cursor on miniature after the first draggingEntered (after the second and more everything's fine). Moreover, after drop on the miniature NSWindow does not receive any events until a click on any area of it.
Code for minimizing window (in NSWindow subclass):
-(void)minimize
{
const double miniSize = 240;
MSDraggingMiniature *mini = [[MSDraggingMiniature alloc] init];
[mini setMiniImage:[[MSScreenMaker getInstance] makeEditorScreen:(int)[self windowNumber]]];
_mainContentView = self.contentView;
_oldFrame = [self frame];
[self setStyleMask:NSBorderlessWindowMask];
self.contentView = mini;
NSRect drect = [[self screen] frame];
double width, height;
if (self.frame.size.width < self.frame.size.height) {
height = miniSize;
width = self.frame.size.width / self.frame.size.height * miniSize;
} else {
width = miniSize;
height = self.frame.size.height / self.frame.size.width * miniSize;
}
_anima = MSEditorResizeAnimationMinimize;
[self setFrame:NSMakeRect(drect.origin.x + 20, drect.origin.y + 20 , width, height) display:YES animate:YES];
}
-(void)deminimize
{
self.contentView = _mainContentView;
[self setStyleMask:NSTitledWindowMask];
_anima = MSEditorResizeAnimationDeminimize;
[self setFrame:_oldFrame display:YES animate:YES];
[self makeKeyWindow];
[self makeMainWindow];
}
After lots of variants I found the answer. It seems that area, acting like Dragging Source, must be just NSView, not a subclass of NSButton, which I had.
I rewrote my Dragging Source class - now everything works fine.
EDIT:
I uploaded my implementation to github. Maybe it is better to understand what I want and what my problem is.
I changed the code in the github project a little bit than the posted code here. I think the implementation in the github project is better, but not perfect.
What I want to do:
Have a UIScrollView with movable UIViews (e.g. Images). The user can pan this subviews and zoom in and out. When the user zooms in and moves a subview over the current visible area the scrollView should automatically scroll. As lang as the subview is over the edge the scrollview should scroll. When the subview isn't over the visible area anymore the scrollview should stop moving.
I try to explain my problem as good as possible.
What I have managed to do:
Zoom the scrollview, move the subviews with the UIPanGestureRecognizer, recognize when the subview is over the visible area and start moving (changing the contentOffset) the scrollview. Here I using a NSTimer to move the scrollview as long as the subview is over the visible area.
My problem:
When the subview is over the visible area a NSTimer is started, to change the contentOffset of the subview and the frame (position) of the subview.
After that I can't pan the subview anymore.
I can't figure out how to implement the pan gesture with changing the subview frame in a correct way.
My implementation:
I am using three views:
UIScrollView
MyImageContainerView (UIView, added as a subview to the scrollview)
MyImageView (UIView, added as a subview to MyImageContainerView)
Currently MyImageContainerView manages the workflow. A MyImageView has a UIPanGestureRecognizer attached. The method for this recognizer is implemented in MyImageContainerView:
- (void)handlePanGesture:(UIPanGestureRecognizer *)gestureRecognizer
{
//UIView which is moved by the user
MyImageView *currentView = gestureRecognizer.view;
switch (gestureRecognizer.state)
{
case UIGestureRecognizerStatePossible:
{
break;
}
case UIGestureRecognizerStateBegan:
{
//save both values in global instance variables
currentFrameOriginX = currentView.frame.origin.x;
currentFrameOriginY = currentView.frame.origin.y;
//global BOOL variable, to check if scrollView movement is performed
scrolling = NO;
break;
}
case UIGestureRecognizerStateChanged:
{
CGRect rect = CGRectMake(currentFrameOriginX + [gestureRecognizer translationInView:currentView.superview].x, currentFrameOriginY + [gestureRecognizer translationInView:currentView.superview].y, currentView.frame.size.width, currentView.frame.size.height);
if (CGRectContainsRect(currentView.superview.frame, rect)) {
/*PROBLEM: Here is a problem. I need this change of the frame here, to move the UIView along the movement from the user. In my autoScroll-method I have to set the frame of currentView, too. But I can't set the frame of currentView here and in the autoScroll. But as long as the NSTimer runs and is calling autoScroll: this if-statement isn't called, so I can't move the UIView with my finger anymore. */
if (!scrolling) {
//currently the NSTimer method for the automatically scrolling isn't performed, so:
//change the frame according to the pan gesture
currentView.frame = rect;
}
UIScrollView *scrollView = self.myScrollView; //reference to the "root" UIScrollView
CGRect visibleRect;
visibleRect.origin = scrollView.contentOffset;
visibleRect.size = scrollView.bounds.size;
CGRect frame = currentView.frame;
CGFloat scale = 1.0 / scrollView.zoomScale;
visibleRect.origin.x *= scale;
visibleRect.origin.y *= scale;
visibleRect.size.width *= scale;
visibleRect.size.height *= scale;
CGSize scrollZone = CGSizeMake(10.0f, 10.0f);
float scrollStep = 3.0f;
CGPoint scrollAmount = CGPointZero;
//determine the change of x and y
if (frame.origin.x+scrollZone.width < visibleRect.origin.x) {
scrollAmount.x = -scrollStep;
}
else if((frame.origin.x+frame.size.width)-scrollZone.width > visibleRect.origin.x + visibleRect.size.width) {
scrollAmount.x = scrollStep;
}
else if (frame.origin.y+scrollZone.height < visibleRect.origin.y) {
scrollAmount.y = -scrollStep;
}
else if((frame.origin.y+frame.size.height)-scrollZone.height > visibleRect.origin.y + visibleRect.size.height) {
scrollAmount.y = scrollStep;
}
if ((scrollAmount.x != 0) | (scrollAmount.y != 0)) {
if (![scrollTimer isValid]) {
//scrollTimer is a global NSTimer instance variable
[scrollTimer invalidate];
scrollTimer = nil;
NSString *scrollString = NSStringFromCGPoint(scrollAmount);
NSDictionary *info = [NSDictionary dictionaryWithObjectsAndKeys:scrollString, #"scrollString", currentView, #"currentView", nil];
scrollTimer = [[NSTimer alloc]initWithFireDate:[NSDate date] interval:0.03f target:self selector:#selector(autoScroll:) userInfo:info repeats:YES];
[[NSRunLoop mainRunLoop] addTimer:scrollTimer forMode:NSRunLoopCommonModes];
}
}
else {
[scrollTimer invalidate];
scrollTimer = nil;
scrolling = NO;
}
}
break;
}
case UIGestureRecognizerStateEnded:
{
//quite know the scrolling should stop, maybe it would be better when the scrollView scrolls even if the user does nothing when the subview is over the visible area
[scrollTimer invalidate];
scrollTimer = nil;
scrolling = NO;
break;
}
default:
{
[scrollTimer invalidate];
scrollTimer = nil;
scrolling = NO;
break;
}
}
}
-(void)autoScroll:(NSTimer*)timer {
scrolling = YES; //the scroll method is executed quite know
NSDictionary *info = [timer userInfo];
UIScrollView *scrollView = self.myScrollView;
CGRect visibleRect;
visibleRect.origin = scrollView.contentOffset;
visibleRect.size = scrollView.bounds.size;
CGPoint scrollAmount = CGPointFromString([info objectForKey:#"scrollString"]);
MyImageView *currentView = [info objectForKey:#"currentView"];
//stop scrolling when the UIView is at the edge of the containerView (referenced over 'self')
if ((currentView.frame.origin.x <= 0 | currentView.frame.origin.y <= 0) ||
((currentView.frame.origin.x+currentView.frame.size.width) > self.frame.size.width | (currentView.frame.origin.y+currentView.frame.size.height) > self.frame.size.height)
) {
scrolling = NO;
return;
}
//move the UIView
CGFloat scale = 1.0 / scrollView.zoomScale;
if (scrollAmount.x != 0) {
scrollAmount.x *= scale;
}
if (scrollAmount.y != 0) {
scrollAmount.y *= scale;
}
CGRect frame = currentView.frame;
frame.origin.x += scrollAmount.x;
frame.origin.y += scrollAmount.y;
currentView.frame = frame;
currentFrameOriginX = currentView.frame.origin.x;
currentFrameOriginY = currentView.frame.origin.y;
//move the scrollView
CGPoint contentOffset = scrollView.contentOffset;
contentOffset.x += scrollAmount.x;
contentOffset.y += scrollAmount.y;
[scrollView setContentOffset:contentOffset animated:NO];
}