So various iterations of this question seems to have been asked on this site multiple times, but none of them seem to apply to my situation. So I've got a login screen that flips to a navigation controller upon successful login. When it flips to the navigation view, the navigation bar is all the way at the top, and then shifts down once the animation is complete. This does not create an odd white space above the navigation bar, because the navigation bar is starting embedded in the status bar during the animation. I have checked that both view controllers in question have the status bar enabled, so I'm not sure what I need to do to fix this strange problem.
Here is how I am switching the views
-(void) swapToNavController
{
[UIView beginAnimations:#"View Flip" context:nil];
[UIView setAnimationDuration:1.25];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
UIViewController *coming = nil;
UIViewController *going = nil;
UIViewAnimationTransition transition;
coming = eventsNavController;
going = viewController;
transition = UIViewAnimationTransitionFlipFromRight;
[UIView setAnimationTransition: transition forView:self.window cache:YES];
[coming viewWillAppear:YES];
[going viewWillDisappear:YES];
[going.view removeFromSuperview];
[self.window insertSubview: coming.view atIndex:0];
[going viewDidDisappear:YES];
[coming viewDidAppear:YES];
[UIView commitAnimations];
}
I was able to resolve this issue by switching the method I used to perform the animations as seen in this post
Related
I want to show a custom animation when pushing a view controller: I would like to achieve something like an "expand" animation, that means the new view expands from a given rectangle, lets say [100,100 220,380] during the animation to full screen.
Any suggestions where to start, respectively any documents, tutorials, links? :)
Alright. I could make the expand animation with the following code:
if ([coming.view superview] == nil)
[self.view addSubview:coming.view];
coming.view.frame = CGRectMake(160,160,0,0);
[UIView beginAnimations:#"frame" context:nil];
[UIView setAnimationDuration:4];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[coming viewWillAppear:YES];
[going viewWillAppear:YES];
coming.view.frame = CGRectMake(0, 0, 320, 480);
[going viewDidDisappear:YES];
[coming viewDidAppear:YES];
[UIView commitAnimations];
My View is properly displayed, but unfortunately the navigation bar is not updated. Is there a way to do that manually?
In the sample code, a function is called all 0.03 seconds that updates the transformation of the view.
Unfortunately, when pushing a UIViewController, I am not able to resize the frame of the view ... am I ?
I use the following function (added to UINavigationController) to customize the push animation:
- (void) pushController: (UIViewController*) controller
withTransition: (UIViewAnimationTransition) transition
{
[UIView beginAnimations:nil context:NULL];
[self pushViewController:controller animated:NO];
[UIView setAnimationDuration:.5];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationTransition:transition forView:self.view cache:YES];
[UIView commitAnimations];
}
I guess you could adapt this code to do whatever animation you want.
The code which you are looking for:
[UIView beginAnimations:#"View Flip" context:nil];
[UIView setAnimationDuration:0.80];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationTransition:
UIViewAnimationTransitionFlipFromRight
forView:self.navigationController.view cache:NO];
[self.navigationController pushViewController:menu animated:YES];
[UIView commitAnimations];
What you could do is push the next view controller but don't animate it, like so:
[self.navigationController pushViewController:nextController animated:NO];
...and then, in the view controller that is getting pushed in, you could do a custom animation of it's view using CoreAnimation. This might be best done in the viewDidAppear:(BOOL)animated method.
Check out the Core Animation Guide on how to actually do the animation. Look particularly at the implicit animation.
EDIT: updated link
#zoul: That worked great! I just changed "self" to "self.navigationController" and "self.view" to "self.navigationController.view" Don't know if that was necessary, but it worked. And #crafterm, as for popping back, just make your own leftBarButtonItem by adding this code in viewDidLoad or ViewWillAppear:
//add your own left bar button
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:#"Back" style:UIBarButtonItemStylePlain target:self action:#selector(backButtonTapped)];
self.navigationItem.leftBarButtonItem = backButton;
[backButton release];
Then I just tweaked the push function and made this popWithTransition function that I called in my -backButtonTapped method.
- (void) popWithTransition: (UIViewAnimationTransition) transition
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:.75];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationTransition:transition forView:self.navigationController.view cache:YES];
[UIView commitAnimations];
[self.navigationController popViewControllerAnimated:NO];
}
Note that the popViewController call got shifted down to the end, after the animation. Don't know if that's kosher, but again, it worked.
What you want is the downloads for chapter 2 of iphone developers cookbook. Look at the affineRotate sample specifically, although any of the core animatin samples will help you.
Have a look at ADTransitionController, a drop in replacement for UINavigationController with custom transition animations (its API matches the API of UINavigationController) that we created at Applidium.
You can use different pre-defined animations for push and pop actions such as Swipe, Fade, Cube, Carrousel and so on. In your case, the animation you are requesting is the one called Zoom.
I'm 2 levels down on a UINavigationContoller having already pushed a few views. Now I'm looking at an image inside one of the pushed view controllers and when I tap an info button in the navigation bar, I want the sub view to flip leaving the nav bar in place. How do I get just the subview (the view that was pushed) to flip? Right now the nav bar also flips and prevents me from navigating back up my stack.
-(void)showImageInfo
{
self.imgInfoViewController = [[ImageInfoViewController alloc] initWithNibName:#"ImageInfoViewController" bundle:nil];
[self.imgInfoViewController setModalTransitionStyle:UIModalTransitionStyleFlipHorizontal];
[self.navigationController presentModalViewController:self.imgInfoViewController animated:YES];
}
code from UICatalog Example.... I think it will do what you are looking for. Basically you have to do some more coding to get the flip behavior.
http://developer.apple.com/iphone/library/samplecode/UICatalog/Listings/TransitionViewController_m.html#//apple_ref/doc/uid/DTS40007710-TransitionViewController_m-DontLinkElementID_34
- (IBAction)flipAction:(id)sender
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:kTransitionDuration];
[UIView setAnimationTransition:([self.mainView superview] ? UIViewAnimationTransitionFlipFromLeft :UIViewAnimationTransitionFlipFromRight) forView:self.containerView cache:YES];
if ([flipToView superview])
{
[self.flipToView removeFromSuperview];
[self.containerView addSubview:mainView];
}
else
{
[self.mainView removeFromSuperview];
[self.containerView addSubview:flipToView];
}
[UIView commitAnimations];
}
I am nearly finished with my first IPhone app and everything works fine - except of one very little display bug:
My starscreen is an UIView (Fullscreen) without Navigationbar or Toolbar.
If I tap on a start button, there is an UIViewAnimationTransitionFlipFromRight animation that flips to the main navigation controller:
-(IBAction) switchViewToMainMenu {
[UIView beginAnimations:#"Flip View" context:nil];
[UIView setAnimationDuration:1.25];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationTransition: UIViewAnimationTransitionFlipFromRight forView:self.window cache:YES];
[self.navController viewWillAppear:YES];
[self.startScreenViewController viewWillDisappear:YES];
[self.startScreenViewController.view removeFromSuperview];
[self.window addSubview:navController.view];
[self.startScreenViewController viewDidDisappear:YES];
[self.navController viewDidAppear:YES];
[UIView commitAnimations];
self.startScreenViewController=nil;
[startScreenViewController release];
}
This works fine except of one little problem:
When the navigation controller view appears (flips in), the Navigationbar on top is some pixels too high (the is a white bar where the Navigationbar should be). When the animation finished, the Navigationbar drops down to the right position. This doesn't look very beautiful...
Any ideas how to fix that problem ?
We found a solution using the setAnimationDelay giving some time the tabbar to load and placed in view.
Thought you have to alter the code a little in order to use the setAnimationDelay.
You have to use the setyanimationdelay just before the setanimationtransition and the setanimationtransition just before the commitAnimations. So the code above should end to:
[UIView setAnimationDelay:2]; // 2 seconds delay seems to be working for us
[UIView setAnimationTransition: UIViewAnimationTransitionFlipFromRight forView:self.window cache:YES];
[UIView commitAnimations];
I had a look around and didn't find what I was exactly looking for.
Is there a way to get a flip animation when pushing a view controller?
I read that you can change the animation by using a modal view controller but AFAIK the animation for a modal view is from bottom to top and that's not what i am looking for. Is there a way to get a flip animation somehow?
something like this should work
[UIView beginAnimations:#"animation" context:nil];
[self.navigationController pushViewController: yourviewcontroller animated:NO];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:self.navigationController.view cache:NO];
[UIView commitAnimations];
don't forget to set animated to NO when calling pushViewController
This also works.. for iOS 4.0 and greater
[UIView transitionWithView:self.navigationController.view duration:0.8 options:UIViewAnimationOptionTransitionFlipFromLeft
animations:^(void) {
BOOL oldState = [UIView areAnimationsEnabled];
[UIView setAnimationsEnabled:NO];
[self.navigationController pushViewController:viewController animated:YES];
[UIView setAnimationsEnabled:oldState];
}
completion:nil];
- (void)viewWillDisappear:(BOOL)animated {
[UIView beginAnimations:#"animation2" context:nil];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationDuration: 0.7];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:self.navigationController.view cache:NO];
[UIView commitAnimations]; }
in the new viewcontroller will make it flip back the same way (instead of sliding left) when the back button in the toolbar is pushed -- make sure animation is enabled here, e.g., if you make a custom button to pop the stack, use:
- (void) backToPrevious: (id) sender
{
//[self.navigationController popViewControllerAnimated:YES];
[self dismissModalViewControllerAnimated:YES];
}
For modally presented view controllers, you can change the animation with the modalTransitionStyle property. AFAIK, there is no way to change a navigation controller's push animation (except rebuilding UINavigationController from scratch).
I want to show a custom animation when pushing a view controller: I would like to achieve something like an "expand" animation, that means the new view expands from a given rectangle, lets say [100,100 220,380] during the animation to full screen.
Any suggestions where to start, respectively any documents, tutorials, links? :)
Alright. I could make the expand animation with the following code:
if ([coming.view superview] == nil)
[self.view addSubview:coming.view];
coming.view.frame = CGRectMake(160,160,0,0);
[UIView beginAnimations:#"frame" context:nil];
[UIView setAnimationDuration:4];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[coming viewWillAppear:YES];
[going viewWillAppear:YES];
coming.view.frame = CGRectMake(0, 0, 320, 480);
[going viewDidDisappear:YES];
[coming viewDidAppear:YES];
[UIView commitAnimations];
My View is properly displayed, but unfortunately the navigation bar is not updated. Is there a way to do that manually?
In the sample code, a function is called all 0.03 seconds that updates the transformation of the view.
Unfortunately, when pushing a UIViewController, I am not able to resize the frame of the view ... am I ?
I use the following function (added to UINavigationController) to customize the push animation:
- (void) pushController: (UIViewController*) controller
withTransition: (UIViewAnimationTransition) transition
{
[UIView beginAnimations:nil context:NULL];
[self pushViewController:controller animated:NO];
[UIView setAnimationDuration:.5];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationTransition:transition forView:self.view cache:YES];
[UIView commitAnimations];
}
I guess you could adapt this code to do whatever animation you want.
The code which you are looking for:
[UIView beginAnimations:#"View Flip" context:nil];
[UIView setAnimationDuration:0.80];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationTransition:
UIViewAnimationTransitionFlipFromRight
forView:self.navigationController.view cache:NO];
[self.navigationController pushViewController:menu animated:YES];
[UIView commitAnimations];
What you could do is push the next view controller but don't animate it, like so:
[self.navigationController pushViewController:nextController animated:NO];
...and then, in the view controller that is getting pushed in, you could do a custom animation of it's view using CoreAnimation. This might be best done in the viewDidAppear:(BOOL)animated method.
Check out the Core Animation Guide on how to actually do the animation. Look particularly at the implicit animation.
EDIT: updated link
#zoul: That worked great! I just changed "self" to "self.navigationController" and "self.view" to "self.navigationController.view" Don't know if that was necessary, but it worked. And #crafterm, as for popping back, just make your own leftBarButtonItem by adding this code in viewDidLoad or ViewWillAppear:
//add your own left bar button
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:#"Back" style:UIBarButtonItemStylePlain target:self action:#selector(backButtonTapped)];
self.navigationItem.leftBarButtonItem = backButton;
[backButton release];
Then I just tweaked the push function and made this popWithTransition function that I called in my -backButtonTapped method.
- (void) popWithTransition: (UIViewAnimationTransition) transition
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:.75];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationTransition:transition forView:self.navigationController.view cache:YES];
[UIView commitAnimations];
[self.navigationController popViewControllerAnimated:NO];
}
Note that the popViewController call got shifted down to the end, after the animation. Don't know if that's kosher, but again, it worked.
What you want is the downloads for chapter 2 of iphone developers cookbook. Look at the affineRotate sample specifically, although any of the core animatin samples will help you.
Have a look at ADTransitionController, a drop in replacement for UINavigationController with custom transition animations (its API matches the API of UINavigationController) that we created at Applidium.
You can use different pre-defined animations for push and pop actions such as Swipe, Fade, Cube, Carrousel and so on. In your case, the animation you are requesting is the one called Zoom.