I have a UIViewController, a "switcher" that will basically just rotate a view from one to another.
It all works great, except that the view that I am transitioning to is a UIViewController which holds a UITableViewController. For some reason, when the animation "flips", the navigation bar is invisible, and once the animation completes the navigation bar just appears.
It really doesn't look good and I was wondering if anyone knew why I might be seeing this and how I could fix it?
Thanks,
--d
EDIT: Adding some code by request!
Switcher viewDidLoad method - Currently Initializing both of the ViewControllers because I thought it may help
[super viewDidLoad];
LogoView *logoController = [[LogoView alloc] init];
self.logoView = logoController;
[self.view insertSubview:logoView.view atIndex:0];
[logoController release];
MainController *vController = [[MainController alloc] init];
self.controller = vController;
[vController release];
switchTimer = [NSTimer scheduledTimerWithTimeInterval:2 target:self selector:#selector(switchViews) userInfo:nil repeats:NO];
Switcher switchViews method
[UIView beginAnimations:#"View Flip" context:nil];
[UIView setAnimationDuration:.5];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
if (self.controller.view.superview == nil)
{
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES];
[controller viewWillAppear:YES];
[logoView viewWillDisappear:YES];
[logoView.view removeFromSuperview];
[self.view insertSubview:controller.view atIndex:0];
[logoView viewDidDisappear:YES];
[controller viewDidAppear:YES];
}
[UIView commitAnimations];
MainController viewDidLoad method
CGRect frame = CGRectMake(0, 0, 320, 410);
FirstLevelController *controller = [[FirstLevelController alloc] init];
navController = [[UINavigationController alloc] initWithRootViewController:controller];
navController.view.frame = frame;
navController.navigationBar.tintColor = [UIColor blackColor];
[controller release];
[self.view addSubview:navController.view];
Inside the FirstLevelController I just add the items to the table view... I've tried adding a navController.title = #"Home", but I am not even seeing the black navbar without text... it's just a big empty space.
Help is muchly appreciated!
Hah! I changed the animation "cache" from YES to NO, and it fixed it! Yay!
Related
I'm working on an iPhone/iPad application and trying to switch views through a function call, not by a button. I've seen lots of sources switching views triggered by a button, but there's nothing that explains how to switch views triggered by a function. I tried to do this on my own, but it failed. Here's the code that I tried:
- (void)viewDidLoad
{
[super viewDidLoad];
if (self.webview == nil) {
self.webview = [[MainViewController alloc] init];
/* webview initialized with storyboard */
if (self.view.superview == nil) {
[self.view insertSubview:self.webview.view atIndex:0];
}
[storyboard release];
}
}
This is viewDidLoad of the viewController.m. First, it shows WebView.
- (void)changeView {
self.normview = [[AlternateViewController alloc] init];
/* normview initialized with storyboard */
[UIView beginAnimations:#"View Flip" context:nil];
[UIView setAnimationDuration:0.75];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES];
[self.webview viewWillDisappear:YES];
[self.webview viewDidDisappear:YES];
[self.webview.view removeFromSuperview];
[self.view insertSubview:self.normview.view atIndex:0];
[self.normview viewWillAppear:YES];
[self.normview viewDidAppear:YES];
[UIView commitAnimations];
}
And when this changeView function (in a viewController.m) is called, It should change the view from webview to normview (actually, it works fine when the same code is triggered by a button). But when I call this function in other file (not viewController.m), such as
ViewController *viewcontroller = [[ViewController alloc] init];
[viewcontroller changeView];
It doesn't work. Anyone can give a clue to solve this or an alternative way? (ps. I'm testing on iPad.)
You can switch views with this function:
YourView *screen = [[YourView alloc] initWithNibName:nil bundle:nil];
screen.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentModalViewController:screen animated:YES];
[screen release];
You can set the modaltransitionstyle to your willings.
Don't forget to import your headerfile at the top of your class.
#import "YourView.h"
I am trying to switch views, but I want the animation with the view lifts up and its like a piece of paper folding to see what is underneath.
Any tutorials or examples of how to get that view animation, if it is an animation, would be appreciated.
Actually the view that the maps app uses when you hit the button on the corner.
Something like this should work:
MyViewController *myView = [[MyViewController alloc] initWithNibName:#"MyViewController" bundle:nil];
myView.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:#selector(dismissModalViewControllerAnimated:)] autorelease];
UINavigationController *navigation = [[UINavigationController alloc] initWithRootViewController:myView];
navigation.modalTransitionStyle = UIModalTransitionStylePartialCurl;
navigation.delegate = self;
[self presentModalViewController:navigation animated:YES];
The key here is the modalTransitionStyle property needs to be set to UIModalTransitionStylePartialCurl before presenting the modal view.
More info here: UIViewController Class Reference (look for modalPresentationStyle, modalTransitionStyle, presentModalViewController:animated:, and dismissModalViewControllerAnimated:).
There are two basic ways of doing this, the old one which is no longer recommended:
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.5];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlDown
forView:containerView cache:YES];
[containerView addSubview:subview];
[UIView commitAnimations];
And the new one (It uses blocks which are supported from iOS 4 and on):
[UIView transitionWithView:containerView duration:0.5
options:UIViewAnimationOptionTransitionCurlDown
animations:^ { [containerView addSubview:subview]; }
completion:nil];
Sample on GitHub
I have a strange problem.
I have Navigation-based app with two UIViewControllers and Curl effect for transition between these.
I add to bar button and add custom action:
-(IBAction)pushPage
{
NSLog(#"push page");
SecondViewController *secondView = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
[UIView beginAnimations:#"animation" context:nil];
[UIView setAnimationDuration:0.75];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.navigationController.view cache:NO];
[self.navigationController pushViewController:secondView animated:NO];
[UIView commitAnimations];
[secondView release];
}
In SecondView I have a button with action:
-(IBAction)back
{
[imageAnimationIssueAppDelegate backPage];
}
Method backPage in AppDelegate:
-(void)backPage
{
NSLog(#"backPage");
[UIView beginAnimations:#"animation" context:nil];
[UIView setAnimationDuration:0.75];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlDown forView:self.navigationController.view cache:NO];
[self.navigationController popToRootViewControllerAnimated:NO];
[UIView commitAnimations];
}
PROBLEM:
On the RootView I have UIImageView with animation:
- (void)viewDidLoad
{
[super viewDidLoad];
animImage.animationImages = [NSArray arrayWithObjects:
[UIImage imageNamed:#"1.png"],
[UIImage imageNamed:#"2.png"],
[UIImage imageNamed:#"3.png"],
[UIImage imageNamed:#"4.png"],
[UIImage imageNamed:#"3.png"],
[UIImage imageNamed:#"2.png"],
nil];
animImage.animationDuration = 0.5;
animImage.animationRepeatCount = 0;
}
I start it in viewDidAppear:
- (void)viewDidAppear:(BOOL)animated
{
NSLog(#"First view - viewDidAppear");
[super viewDidAppear:animated];
[animImage startAnimating];
}
I stop it in viewDidDisapear:
- (void)viewDidDisappear:(BOOL)animated
{
NSLog(#"First view - viewDidDisappear");
[super viewDidDisappear:animated];
[animImage stopAnimating];
}
When I back from SecondView animation is stoped! But [animImage isAnimating] say YES!
It doesn't start witout update screen - you can click to button on the bottom and see it!
Is it bug?
Animation works without custom transitions.
When I set animated:YES for push or pop view, animation works with custom transitions between views.
Why?
Is there simple way to update displaying view to start animation?
I think you should have to write
[yellowBatterfly startAnimating];
in viewDidLoad method. and change method from
viewDidAppear to viewWillAppear and
viewDidDisappear to viewWillDisappear.
Hope It will works...
I think you have to perform the animations on the view using:
[UIView commitAnimations]
I have a view, and a button in this view. When I press this button I need open other view as a frame. Searching I found this post: iOS -- how do you control the size of a modal view controller?
I modify this and I doing this in a IBAction connected to a button:
View2Controller *screen = [[View2Controller alloc] initWithNibName:nil bundle:nil]; //Line add
UIView *myHalfView = [[UIView alloc] initWithFrame:screen.view.frame]; //Line modified by me
[self.view addSubview:myHalfView];
CGRect offScreenFrame = myHalfView.bounds;
offScreenFrame.origin = CGPointMake(0.0, CGRectGetMaxY(self.view.frame));
[UIView beginAnimations:nil context:nil];
myHalfView.center = CGPointMake(myHalfView.center.x, myHalfView.center.y - myHalfView.bounds.size.height);
[UIView commitAnimations];
[myHalfView release];
But when I press that button nothing happens. I've verified the code runs in debug it step by step.
Thanks.
Take a peak at this it's golden... read the comments in there as well.
http://humblecoder.blogspot.com/2009/04/iphone-tutorial-navigation-controller.html
Your View2Controller is initialized without a nibname?
I typically have a xib I built in Interface Builder in and do the following (have the view in the xib be whatever size you want by default if it doesn't change):
MyViewController* controller = [[MyViewController alloc]initWithNibName:#"MyViewController" bundle:nil];
[navigationController.view addSubview:controller.view];
//manipulate controller.view here
[controller release];
Thanks all for the replies. Finally I do this and works:
First in my IBAction:
View2Controller* modalViewController = [[[View2Controller alloc] initWithNibName:#"View2Controller" bundle:nil] autorelease];
[self.view addSubview:modalViewController.view];
Then in View2Controller.m in viewDidLoad:
[self.view setBackgroundColor:[UIColor clearColor]];
[UIView beginAnimations:nil context:nil];
[self.view setFrame:CGRectMake(0, 1024, 128, 600)];
[UIView setAnimationDuration:0.75f];
[self.view setFrame:CGRectMake(0, 404, 128, 600)];
[UIView commitAnimations];
I am using the following code:
- (void)flip
{
MailComposerViewController *mailView = [[MailComposerViewController alloc] init];
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:2.0];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft
forView:window
cache:YES];
[mtController.view removeFromSuperview];
//[self.window addSubview:[mailComposer view]];
[self presentModalViewController:mailView animated:YES];
[UIView commitAnimations];
[mailView release]
}
here mtController is a navigation controller (XIB file). I removed it and I add mailview, but the simulator does not show it. What am I doing wrong?
What are you trying to do? Less Vague Questions Is A Good Thing™. Are you trying to use a standard Mail compose controller and use it to flip over instead of present normally?
If so, you can do this:
MailComposerViewController *mailView = [[[MailComposerViewController alloc] init] autorelease];
mailView.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentModalViewController:mailView animated:YES];