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);
Related
I had an application in which i am having a view controller which is an appdelegate instance.I am adding that view to the self.navigationcontrollers view in order to place it above navigation bar.lke this `
if(appDelegate.viewcontroller==nil)
{
appDelegate.viewcontroller = [[ViewController alloc] init];
[self.navigationController.view addSubview:appDelegate.viewcontroller.view];
NSLog(#"My view frame: %#", NSStringFromCGRect(appDelegate.viewcontroller.view.frame));
appDelegate.viewcontroller.view.tag=7;
appDelegate.viewcontroller.view.frame =CGRectMake(0,480,300,460);
[UIView animateWithDuration:.50
animations:^{
appDelegate.viewcontroller.view.frame =CGRectMake(0,30,300,440);
}];
[appDelegate.viewcontroller viewWillAppear:YES];
}
else
{
NSLog(#"My view frame: %#", NSStringFromCGRect(appDelegate.viewcontroller.view.frame));
appDelegate.viewcontroller.view.frame=CGRectMake(0, 30,300, 440);
[self.navigationController.view addSubview:appDelegate.viewcontroller.view];
appDelegate.viewcontroller.view.frame =CGRectMake(0,480,300,460);
[UIView animateWithDuration:.50
animations:^{
appDelegate.viewcontroller.view.frame =CGRectMake(0,30,300,440);
}];
[appDelegate.viewcontroller viewWillAppear:YES];
}
...Now i am adding another viewcontrollers view in to this view by
contactphoneForAddfriend= [[EventsViewController alloc]initWithNibName:#"EventsViewController" bundle:nil];
contactphoneForAddfriend.orgarray=self.eventsArray;
[UIView beginAnimations:#"View Flip" context:nil];
[UIView setAnimationDuration:0.80];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationTransition:
UIViewAnimationTransitionFlipFromRight
forView:self.view cache:NO];
[self.view addSubview:contactphoneForAddfriend.view];
[UIView commitAnimations];
` and then from that view controller when i am going in to the background of the application ...that appdelegate viewcontroller is showing as nil.How come this happen.after all its an appdelegate variouble.when i remove he added view and then go background it is there.Can anybody point me in where i am going wrong?
Checked you code.And found viewController is not nil.Check yourself by applying some code in this method
- (void)applicationDidEnterBackground:(UIApplication *)application
{
if (self.viewController==nil) {
NSLog(#"ViewController is nil");
}else{
NSLog(#"ViewController Has value %#",NSStringFromClass([self.viewController class]));
}
}
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];
}
My son just discovered that he could hit my view's "Done" button, which flips to the previous view, once to start the flip and one or more times as the view is in transition (flipping out). The second and next hits would trigger the same action over again, creating some interesting results, such as ending up with no views visible, but my underlying UIWindow.
I am thinking that I should call:
[coming.view setUserInteractionEnabled: NO];
[going.view setUserInteractionEnabled: NO];
on both the views involved in the flip transition, and then
[coming.view setUserInteractionEnabled: YES];
on the final view after animation has ended.
I was thinking that maybe better than this would be some way to globally disable taps while any view was in transition. What do you think?
Here is the entire view switching code:
- (void)switchTwoViews:(UIViewController *)view1 otherView:(UIViewController *)view2
{
/*
This method is called to switch views.
It flips the displayed view from the main view to the flipside view and vice-versa.
*/
UIViewController *coming = nil;
UIViewController *going = nil;
UIViewAnimationTransition transition;
[view1.view setUserInteractionEnabled: NO];
[view2.view setUserInteractionEnabled: NO];
if (view1.view.superview == nil) {
coming = view1;
going = view2;
transition = UIViewAnimationTransitionFlipFromLeft;
}
else {
coming = view2;
going = view1;
transition = UIViewAnimationTransitionFlipFromRight;
}
// coming.view.frame = [UIScreen mainScreen].applicationFrame;
// going.view.alpha = 1.0; //uncomment these lines if we want fading of views
// coming.view.alpha = 0.0;
NSArray *viewArray = [[NSArray alloc] initWithObjects:coming, going, nil];
[coming viewWillAppear:YES];
[going viewWillDisappear:YES];
[UIView beginAnimations:#"View Flip" context:viewArray]; {
[UIView setAnimationDuration:1.0];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:#selector(animationDidEnd:finished:context:)];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
// coming.view.alpha = 1.0; //uncomment these lines if we want fading of views
// going.view.alpha = 0.0;
[UIView setAnimationTransition:transition forView:self.view cache:YES];
[self.view addSubview: coming.view];
}
[UIView commitAnimations];
}
- (void) animationDidEnd:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context
{
NSArray *viewArray = context;
[((UIViewController *)[viewArray objectAtIndex:1]).view removeFromSuperview];
[[viewArray objectAtIndex:1] viewDidDisappear:YES];
[[viewArray objectAtIndex:0] viewDidAppear:YES];
[[[viewArray objectAtIndex:0] view] setUserInteractionEnabled: YES];
[viewArray release];
}
setUserInteractionEnabled: seems to be the way to go. Any objections?
I'm having some trouble getting a view to flip. I have the following code in my View Controller:
- (void)loadFlipsideViewController {
ProblemViewFlipController *viewController = [[ProblemViewFlipController alloc] initWithNibName:#"ProblemViewFlip" bundle:nil];
self.problemViewFlipController = viewController;
[viewController release];
}
- (void) flipView {
if (problemViewFlipController == nil) {
[self loadFlipsideViewController];
}
UIView *mainView = self.view;
UIView *flipView = problemViewFlipController.view;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1];
[UIView setAnimationTransition:([mainView superview] ? UIViewAnimationTransitionFlipFromLeft : UIViewAnimationTransitionFlipFromRight) forView:self.view cache:YES];
if ([flipView superview])
{
[flipView removeFromSuperview];
[self.view addSubview:mainView];
}
else
{
[mainView removeFromSuperview];
[self.view addSubview:flipView];
}
[UIView commitAnimations];
}
The problem is, is that when I call flipView, the view is replaced with a blank view (i.e. nothing in the view I'm flipping to is displayed).
Is there something obvious I'm missing here? (I suspect there is!)
Not positive, but I think you need to use a 'controller' to flip the views. Looks like you're using one of the flipped views as the controller. Just add a root controller to flip your views.
Code like this should work from the root controller:
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES]; // self.view is the root controller's view
[mainViewController viewWillAppear:YES];
[flipViewController viewWillDisappear:YES];
[flipViewController.view removeFromSuperview];
[self.view addSubview:mainViewController.view];
[flipViewController viewDidDisappear:YES];
[mainViewController viewDidAppear:YES];
[UIView commitAnimations];
Based on the variable names, it looks like this is adapted from the default "Utility" application template you get from XCode. If the template project works, and yours doesn't, then you've obviously changed something you shouldn't have :-)
Chances are, one of the outlets in your controller that should be pointing at a view, isn't. Double-check your Nibs, and check the values of the outlets in the debugger. If all else fails, start over again from the template, and see at what point it stops working.