I want to flip an imageView (left/right), but I can not find a UIView (or UIImageView) method to do that? any idea?
thanks!
I think the only thing you're looking for is:
UIView's
+ (void)setAnimationTransition:(UIViewAnimationTransition)transition forView:(UIView *)view cache:(BOOL)cache;
and
UIViewAnimationTransitionFlipFromLeft,
UIViewAnimationTransitionFlipFromRight,
These animation transitions can only be used within an animation block. The transition is set on the container view and then the old view is swapped out for the new view, then the animation is committed.
Like:
CGContextRef context = UIGraphicsGetCurrentContext();
[UIView beginAnimations:nil context:context];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:yourContainerView cache:YES];
[yourContainerView exchangeSubviewAtIndex:0 withSubviewAtIndex:1];
[UIView commitAnimations];
Put your UIIMageView into a UIView and use this code (from the utility app project sample)
- (void)loadFlipsideViewController {
FlipsideViewController *viewController = [[FlipsideViewController alloc] initWithNibName:#"FlipsideView" bundle:nil];
self.flipsideViewController = viewController;
[viewController release];
// Set up the navigation bar
UINavigationBar *aNavigationBar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 44.0)];
aNavigationBar.barStyle = UIBarStyleBlackOpaque;
self.flipsideNavigationBar = aNavigationBar;
[aNavigationBar release];
UIBarButtonItem *buttonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:#selector(toggleView)];
UINavigationItem *navigationItem = [[UINavigationItem alloc] initWithTitle:#"Test123"];
navigationItem.rightBarButtonItem = buttonItem;
[flipsideNavigationBar pushNavigationItem:navigationItem animated:NO];
[navigationItem release];
[buttonItem release];
}
- (IBAction)toggleView {
/*
This method is called when the info or Done button is pressed.
It flips the displayed view from the main view to the flipside view and vice-versa.
*/
if (flipsideViewController == nil) {
[self loadFlipsideViewController];
}
UIView *mainView = mainViewController.view;
UIView *flipsideView = flipsideViewController.view;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1];
[UIView setAnimationTransition:([mainView superview] ? UIViewAnimationTransitionFlipFromRight : UIViewAnimationTransitionFlipFromLeft) forView:self.view cache:YES];
if ([mainView superview] != nil) {
[flipsideViewController viewWillAppear:YES];
[mainViewController viewWillDisappear:YES];
[mainView removeFromSuperview];
[infoButton removeFromSuperview];
[self.view addSubview:flipsideView];
[self.view insertSubview:flipsideNavigationBar aboveSubview:flipsideView];
[mainViewController viewDidDisappear:YES];
[flipsideViewController viewDidAppear:YES];
} else {
[mainViewController viewWillAppear:YES];
[flipsideViewController viewWillDisappear:YES];
[flipsideView removeFromSuperview];
[flipsideNavigationBar removeFromSuperview];
[self.view addSubview:mainView];
[self.view insertSubview:infoButton aboveSubview:mainViewController.view];
[flipsideViewController viewDidDisappear:YES];
[mainViewController viewDidAppear:YES];
}
[UIView commitAnimations];
}
mainView and flipToView are objects of imageViews and containerView is an object of UIView.
Given below are two sample code to curl the imageView and to flip the ImageView from left to Right
- (void)curlAction:(id)sender
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.75];
[UIView setAnimationTransition:([mainView superview] ? UIViewAnimationTransitionCurlUp : UIViewAnimationTransitionCurlDown)forView:containerView cache:YES];
if ([flipToView superview])
{
[flipToView removeFromSuperview];
[containerView addSubview:mainView];
}
else
{
[mainView removeFromSuperview];
[containerView addSubview:flipToView];
}
[UIView commitAnimations];
}
and to bring the image from left to right here's the code
- (void)flipAction:(id)sender
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.75];
[UIView setAnimationTransition:([mainView superview] ?
UIViewAnimationTransitionFlipFromLeft : UIViewAnimationTransitionFlipFromRight)
forView:containerView cache:YES];
if ([flipToView superview])
{
[flipToView removeFromSuperview];
[containerView addSubview:mainView];
}
else
{
[mainView removeFromSuperview];
[containerView addSubview:flipToView];
}
[UIView commitAnimations];
}
Thank &Regards
Another solution is available at my repo but it does'nt involve animation yet! It only manipulates image orientations to provide for some image effects namely flip vertically/horizontally and rotate 90 degrees left/right.
Related
I have code:
ListViewController * listViewController = [[ListViewController alloc] initWithNibName:#"ListViewController" bundle:nil];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1.5];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES];
[self viewWillDisappear:YES];
[listViewController viewWillAppear:YES];
self.view.hidden = YES;
listViewController.view.hidden = NO;
[self viewDidDisappear:YES];
[listViewController viewDidAppear:YES];
[UIView commitAnimations];
But it does not works, and listViewController does not displayed( Please, somebody can tell me the solution of this problem?
Try something like:
UIViewAnimationOptions ops = UIViewAnimationOptionTransitionFlipFromRight;
NSArray *temp = [[NSBundle mainBundle] loadNibNamed:#"NameOfNib" owner:self options:nil];
UIView* newView = [[temp objectAtIndex:0] view];
[UIView transitionFromView:self.view toView:newView duration:1.5 options:ops completion:nil];
self.view = newView; //Lets you control the new view from the current controller (you might want to save a reference to the old one if you need to change back)
As meronix said, non-block based animation is discouraged by Apple for the newer iOS versions. The above method is the "approved" way to do it.
Just so you know, the viewWillAppear, viewDidDisappear, and similar methods aren't methods that YOU call to make the view do things. They're called automatically when these things happen.
Your code had a few misunderstandings; I've commented on them below
//This looks fine (depending on what is in the nib)
ListViewController * listViewController = [[ListViewController alloc] initWithNibName:#"ListViewController" bundle:nil];
//Normally I use these to move things around, not change the view
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1.5];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES];
[self viewWillDisappear:YES]; //These two methods aren't things that you call
[listViewController viewWillAppear:YES];
self.view.hidden = YES; //If you're flipping or otherwise moving a view out of
listViewController.view.hidden = NO; //sight then you don't need to hide/unhide views
[self viewDidDisappear:YES]; //Same as above, you don't call these
[listViewController viewDidAppear:YES];
[UIView commitAnimations];
Remove unnecessary code and just write this ...
ListViewController * listViewController = [[ListViewController alloc] initWithNibName:#"ListViewController" bundle:nil];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1.5];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES];
[self.view addSubview:listViewController.view];
[UIView commitAnimations];
it cannot work!
you just create and allocate a UIViewController, but never push it on any stacks, or add its view to a visible view.
when you set listViewController.view.hidden to no, you are not magically showing it on screen: you need to add its view to a view (or window) which is already on screen...
ps beginAnimation is deprecated: use blocks animation instead...
I want to know how to change view on button click in iPhone without navigation controller?
If you're doing this with a UIViewController, you would probably do this like following:
- (IBAction)change {
UIViewController* viewController = [[UIViewController alloc] init];
[self.view addSubView];
// Save the UIViewController somewhere if necessary, otherwise release it
}
Not sure why you don't want to use a UINavigationController though. If it's the navigation bar at the top you don't want to see, there's a property for that so you can hide that bar. Not sure about it's name, probably navigationBarHidden or something like that. You can look that up in the API.
There are many different ways you can do that, and you should possibly provide more information about your app.
A generic way to do it is the following, with animation:
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1.5];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES];
[vc1 viewWillDisappear:YES];
[vc2 viewWillAppear:YES];
vc1.view.hidden = YES;
vc2.view.hidden = NO;
[vc1 viewDidDisappear:YES];
[vc2 viewDidAppear:YES];
[UIView commitAnimations];
In this case, both views are there, you only hide/show them as you need. Alternatively, you could add/remove the view from their superview:
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1.5];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES];
[vc1 viewWillDisappear:YES];
[vc2 viewWillAppear:YES];
[vc1 removeFromSuperview];
[masterController.view addSubview:vc2.view;
[vc1 viewDidDisappear:YES];
[vc2 viewDidAppear:YES];
[UIView commitAnimations];
Place this in Button IBAction method
[mCurrentView removeFromSuperview];
[self.view addSubView:mNewView];
Assume you have two view myView1 and myView2 and one button myUIButton in memory
myView1.tag = 1;
myView2.tag = 2;
myUIButton.tag = 1; //Current visible view is myView1
-(void) ButtonCLicked:(id) sender
{
UIButton* myButton = (UIButton*)sender;
if(sender.tag == 1)
{
[myView1 removeFromSuperview];
[self addSubview:myView2]
myButton.tag = myView2.tag;
}
else
{
[myView2 removeFromSuperview];
[self addSubview:myView1]
myButton.tag = myView1.tag;
}
}
You can place two UIView variables in the header file and hide/show one of them or you can make another layer over the existing view like this:
-(IBAction)changeView {
UIView *view = [[UIView alloc] initWithNibName:#"letMeSeeThis" bundle:nil];
[self.view addSubview:view];
}
I was building an articles based application,i am having tab bar and navigation bar in my application.What i want to do is while my article is displaying when i tap on that view,the tabbar and navigationbar should hide and viceversa.
Please help me in this
Thanks for the responses,Finally i have used gesture method
UITapGestureRecognizer *doubleTap = [[UITapGestureRecognizer alloc]
initWithTarget:self action:#selector(handleDoubleTap)];
doubleTap.numberOfTapsRequired =1;
[scrollView addGestureRecognizer:doubleTap];
[doubleTap release]; - (void)handleDoubleTap {
NSLog(#"Single tap");
if(firstTime)
{
[UIView beginAnimations: #"moveField"context: nil];
[UIView setAnimationDelegate: self];
[UIView setAnimationDuration: 0];
[UIView setAnimationCurve: UIViewAnimationCurveEaseInOut];
[self.navigationController setNavigationBarHidden:YES animated:YES];
scrollView.frame = CGRectMake(0,0,320,460.0f);
tabBar.hidden=YES;
[self.view bringSubviewToFront:scrollView];
[UIView commitAnimations];
firstTime=NO;
}
else {
[UIView beginAnimations: #"moveField"context: nil];
[UIView setAnimationDelegate: self];
[UIView setAnimationDuration: 0];
[UIView setAnimationCurve: UIViewAnimationCurveEaseInOut];
//[self.view bringSubviewToFront:scrollView];
[self.navigationController setNavigationBarHidden:NO animated:YES];
scrollView.frame = CGRectMake(0.0, 0.0, 320, 372);
tabBar.hidden=NO;
[UIView commitAnimations];
firstTime=YES;
}
Now iam getting this when i tap on the screen...Is it possible to hide the tabbar and navigationbar wheni scroll the view and vice versa....Please help me in this
Use one BOOL variable i called it firstTime in .h file
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
if(firstTime)
{
[self.navigationController hidesBottomBarWhenPushed];
firstTime=FALSE;
self.navigationController.navigationBar.hidden=TRUE;
}
else
{
[self.navigationController hidesBottomBarWhenPushed];
firstTime=TRUE;
self.navigationController.navigationBar.hidden=FALSE;
}
}
- (BOOL)hidesBottomBarWhenPushed
{
if(firstTime)
{
return TRUE;
}
else
{
return FALSE;
}
}
this will hide your Tabbar and NavigationBar on single tap and viceversa
int DEF_BAR_HEIGHT = 40;
-(void)hideBars:(bool)value
{
// hide navigation bar
[self.navigationController setNavigationBarHidden:value animated:YES];
//hide tabBar
CGRect viewFrame = view.frame;
viewFrame.size.height += value ? DEF_BAR_HEIGHT : -DEF_BAR_HEIGHT; // Change this to the height of the tab bar
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.75];
view.frame = viewFrame;
[UIView commitAnimations];
}
I'm not sure about DEF_BAR_HEIGHT value. Try 40 or 40 plus navigationBar height.
Right I know how to do the pictue book effect but I struggling to remove the view
So page 1, I add the second page view via addSubview (via a swipe). I also increment a counter so I know what page I am on.
So how do I return to page 1? See I thought it would be self.view removeFromSuperview but that crashes when you try to go back to page 2
Code below
- (void)handleSwipeFrom:(UISwipeGestureRecognizer *)recognizer {
if (recognizer.direction == UISwipeGestureRecognizerDirectionLeft) {
//NSLog(#"swipe right to left");
UniversalAppAppDelegate *appDelegate = (UniversalAppAppDelegate *)[[UIApplication sharedApplication] delegate];
PictureBookViewController *viewController2 =(PictureBookViewController *) [appDelegate getViewControllerForViewID:#"81"];
[UIView beginAnimations:Nil context:nil];
[UIView setAnimationDuration:0.6];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view.superview cache:YES];
self.viewController = viewController2;
self.viewController.pageNo = self.pageNo + 1;
[self.view addSubview:self.viewController.view];
[UIView commitAnimations];
[viewController2 release];
} else {
//NSLog(#"swipe left to right");
NSLog([NSString stringWithFormat:#"%d", self.pageNo]);
if (self.pageNo > 0) {
[UIView beginAnimations:Nil context:nil];
[UIView setAnimationDuration:0.6];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlDown forView:self.view.superview cache:YES];
//self.viewController = viewController2;
//self.viewController.pageNo = self.pageNo - 1;
//[self.view addSubview:self.viewController.view];
[self.view removeFromSuperview];
//[self.view addSubview:self.viewController.view];
[UIView commitAnimations];
}
}
}
Update:
Each view has its own view controllers.
You want to remove your viewController's view, not the container's view.
[self.viewController.view removeFromSuperview];
This seems to work and not crash? I am now convinced it right. I just seem to need a way of removing the last added subview. My first view is not the superview
- (void)handleSwipeFrom:(UISwipeGestureRecognizer *)recognizer {
if (recognizer.direction == UISwipeGestureRecognizerDirectionLeft) {
//NSLog(#"swipe right to left");
UniversalAppAppDelegate *appDelegate = (UniversalAppAppDelegate *)[[UIApplication sharedApplication] delegate];
PictureBookViewController *viewController2 =(PictureBookViewController *) [appDelegate getViewControllerForViewID:#"82"];
[UIView beginAnimations:Nil context:nil];
[UIView setAnimationDuration:0.6];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view.superview cache:YES];
self.viewController = viewController2;
self.viewController.pageNo = self.pageNo + 1;
self.viewController.lastViewController = self;
[self.view addSubview:self.viewController.view];
[UIView commitAnimations];
[viewController2 release];
} else {
//NSLog(#"swipe left to right");
NSLog([NSString stringWithFormat:#"%d", self.pageNo]);
if (self.pageNo > 0) {
[UIView beginAnimations:Nil context:nil];
[UIView setAnimationDuration:0.6];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlDown forView:self.view.superview cache:YES];
self.pageNo --;
self.view = self.viewController.view;
[self.view removeFromSuperview ];
self.view = self.lastViewController.view;
[UIView commitAnimations];
}
}
}
I have set up a multiview application with two views. The views can be switched using a button in each view (there are two separate actions). I am using the animation UIViewAnimationTransitionFlipFromRight, and when I go from the first to the second view, the view I am going to appears behind the flipping animation. I would like it just to be white. Any help is appreciated.
alt text http://img35.imageshack.us/img35/9982/picture11wu.png
This is the action switching the views:
- (IBAction)switchViewsOne:(id)sender
{
if (self.uLViewController == nil)
{
ULViewController *uLController =
[[ULViewController alloc]
initWithNibName:#"ULView"
bundle:nil];
self.uLViewController = uLController;
[uLController release];
}
[UIView beginAnimations:#"View Flip" context:nil];
[UIView setAnimationDuration:1.25];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
UIViewController *comming = nil;
UIViewController *going = nil;
UIViewAnimationTransition transition;
if (uLViewController.view.superview == nil)
{
comming = uLViewController;
going = mainViewController;
transition = UIViewAnimationTransitionFlipFromLeft;
}
[UIView setAnimationTransition: transition forView:self.view
cache:YES];
[comming viewWillAppear:YES];
[going viewWillDisappear:YES];
[going.view removeFromSuperview];
[self.view insertSubview: comming.view atIndex:10];
[going viewDidDisappear:YES];
[comming viewDidAppear:YES];
[UIView commitAnimations];
}
You could try using addSubView which just adds it to the top of the stack.
This kind of bug can be if comming.view is nil
[self.view insertSubview: comming.view atIndex:10];
Check, maybe your nib isn't loaded properly
ULViewController *uLController = [[ULViewController alloc] initWithNibName:#"ULView" bundle:nil];
NSLog(#"Loaded controller %#:", uLController);