-(IBAction)buttonPressed1:(id)sender
{
SignView *tempVC = [[SignView alloc] initWithNibName:#"SignView" bundle:Nil];
[UIView beginAnimations:nil context:nil];
[UIView setAnimationTransition: UIViewAnimationTransitionCurlUp forView:self.view cache:YES];
[UIView setAnimationDelay:0.0f];
[UIView setAnimationDuration:0.2f];
[self presentModalViewController:tempVC animated:YES];
[tempVC passDataWithString:button1.titleLabel.text andColor:currentlySelectedColor isNightModeOn:nightMode.on];
[UIView commitAnimations];
}
can anyone help me figure out why this code doesn't work?
This method will call beginAnimations: and commitAnimations, which cannot be nested.
[self presentModalViewController:tempVC animated:YES];
So move it to before beginAnimations: or after commitAnimations.
Related
I know this question gets asked a lot but i have tried all the other answers and i can't figure out why the animation stop selector does not get called. Here is the code:
-(void) moveImage:(UIImageView *)image duration:(NSTimeInterval)duration curve:(int)curve x:(CGFloat)x y:(CGFloat)y annKey:(NSString *) annKey{
[UIView setAnimationDelegate:self];
[UIView setAnimationDuration:duration];
[UIView setAnimationCurve:curve];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDidStopSelector:#selector(animationFinished:finished:context:)];
CGAffineTransform transform = CGAffineTransformMakeTranslation(x, y);
image.transform = transform;
[UIView beginAnimations:annKey context:NULL];
[UIView commitAnimations];
}
This is the main animation function that gets sent all the correct parameters.
- (void)animationFinished:(NSString *)animationID finished:(BOOL)finished context:(void *)context
{
if ([animationID isEqualToString:#"Burn"])
{
NSLog(#"Animation: %# has finished.",animationID);
}
NSLog(#"This does not get called, why not?");
}
None of my NSLogs display text. What am i doing wrong?
You need tho do -
[UIView beginAnimations:annKey context:NULL];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:#selector(animationFinished:finished:context:)];
// Now define rest.
[UIView setAnimationDuration:duration];
[UIView setAnimationCurve:curve];
[UIView setAnimationBeginsFromCurrentState:YES];
CGAffineTransform transform = CGAffineTransformMakeTranslation(x, y);
image.transform = transform;
[UIView commitAnimations];
Not sure what the problem is, but you really shouldn't be using beginAnimations/commitAnimations. Instead, use block animations. You define the completion code directly in the completion portion of the call.
[UIView animateWithDuration:2.0
delay:0.0
options:UIViewAnimationOptionCurveEaseOut
animations:^{
// animation code
}
completion:^(BOOL finished){
// completion code
}];
I am new in ios development, Now i am doing some animation on my application.In my application has one menu on the bottom of main view and have two button one for hide the menu and other for show the menu .My needs is the show and hide function of menu is working like
the [self presentModalViewController:menuView animated:YES]; and [self dismissModalViewControllerAnimated:YES]; function(ie. click the show button ,pop the menuView from the bottom of main view and click the hide button ,move down the menuView ) . I know the basic animation like:
[UIView beginAnimations:#"ShowHideView" context:nil];
[UIView setAnimationCurve:UIViewAnimationOptionOverrideInheritedCurve];
[UIView setAnimationDuration:1.0];
[UIView setAnimationDelegate:self];
[menuView setAlpha:0];
[UIView commitAnimations];
If any body know ,please help me.
When you tap showMenuView, do as following,
- (IBAction)showView:(id)sender
{
[self.view addSubview: menuView];
CGRect rect = menuView.frame;
rect.origin.y = 480;
menuView.frame = rect;
[UIView beginAnimations:#"ShowView" context:nil];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationDuration:0.5];
rect.origin.y = 0;
menuView.frame = rect;
[UIView commitAnimations];
}
And to hide,
- (IBAction)hideView:(id)sender
{
CGRect rect = menuView.frame;
[UIView beginAnimations:#"HideView" context:nil];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationDuration:0.5];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:#selector(animationDidStop:finished:context:)];
rect.origin.y = 480;
menuView.frame = rect;
[UIView commitAnimations];
}
- (void)animationDidStop:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context
{
[menuView removeFromSuperview];
}
I want to create a simple animation changing alpha value:
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:2];
[view1 setAlpha:0.00];
[UIView commitAnimations];
Ok in this way I change the alpha value for two seconds and it works fine, but I want this thing:
When alpha is 0 the animation must should start another time to alpha = 1
So the animation should be: alpha 0 -> alpha 1 -> alpha 0 -> alpha 1 -> ... and so on with a duration of two seconds.
Can you help me?
my complete code is
-(IBAction){
FirstViewController *firstViewController = [[[FirstViewController alloc] init]autorelease];
[firstViewController.label1 setAlpha:1.00];
[firstViewController.label2 setAlpha:1.00];
view = firstViewController.viewFirst; //this is my view and I copy in other view
[self fadeOut:nil finished:nil context:nil];}
- (void) fadeOut:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:2];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:#selector(fadeIn:finished:context:) ];
[view setAlpha:0.00];
[UIView commitAnimations];
}
- (void) fadeIn:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:2];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:#selector(fadeOut:finished:context:) ];
[view setAlpha:1.00];
[UIView commitAnimations];
}
In iOS 4 and later you can do
view1.alpha = 1.0;
[UIView animateWithDuration:2.0
delay:0.0
options:UIViewAnimationOptionRepeat|UIViewAnimationAutoReverse
animations:^{
view1.alpha = 0.0;
}
completion:nil
];
- (void) fadeOut:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:2];
[UIView setAnimationDelegate:self];
if(animationRunning){
[UIView setAnimationDidStopSelector:#selector(fadeIn:finished:context:) ];
}
[view1 setAlpha:0.00];
[UIView commitAnimations];
}
- (void) fadeIn:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:2];
[UIView setAnimationDelegate:self];
if(animationRunning){
[UIView setAnimationDidStopSelector:#selector(fadeOut:finished:context:) ];
}
[view1 setAlpha:1.00];
[UIView commitAnimations];
}
These will call each other on the end of the animation...
All you need to do to start the ball rolling is call:
[self fadeOut:nil finished:nil context:nil];
You can set a animation completion handler (either using the block-based API or +(void)setAnimationDidStopSelector:(SEL)selector) and start the next one.
Alternatively have a look at those to methods:
+ setAnimationRepeatCount:
+ setAnimationRepeatAutoreverses:
I think, you can use just one function (based on previous answer's functions):
- (void) fadeIn:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:2];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:#selector(fadeIn:finished:context:) ];
[view1 setAlpha:mod(1-view1.alpha)];
[UIView commitAnimations];
}
The alplha must not be a negative value, so a mod must be applied
You create a ViewController like below
FirstViewController *firstViewController = [[[FirstViewController alloc] init]autorelease];
And then adding animation to it, but when did you add firstViewController.view in view heirarchy(addSubview). Also just calling
[[[FirstViewController alloc] init]autorelease]
wont create label object unless you have override its init method. Try debugging if label is allocated at that point of time.
Also for animation i use uiview anitmation with completion block method
hi
when certain events occur, I call a number of methods (unlocked trophies in a game) they do appear and disappear a sub-view.
Crash (rightly) occurs when these events occur simultaneously and overlap.
How do I make sure that " wait your turn :) "?
thanks
-(void)trofeiLaunch:(int)x {
CGRect loseFrame = CGRectMake(0, 0, 480, 320);
TrofeoView = [[UIView alloc] initWithFrame:loseFrame];
TrofeoView.alpha = 0.0;
[UIView beginAnimations:nil context:self];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[UIView setAnimationDuration:0.5];
[UIImageView setAnimationDelegate:self];
TrofeoView.alpha = 1.0;
[UIView setAnimationDidStopSelector:#selector(bridgeTrofei)];
[UIView commitAnimations];
[self.view addSubview:TrofeoView];
[TrofeoView release];
....
}
-(void)bridgeTrofei {
TrofeoView.alpha = 1.0;
[UIView beginAnimations:nil context:self];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[UIView setAnimationDuration:0.5];
[UIView setAnimationDelegate:self];
TrofeoView.alpha = 0.0;
[UIView commitAnimations];
[self performSelector:#selector(deleteTrofei) withObject:self afterDelay:1.0];
}
-(void)deleteTrofei {
[TrofeoView removeFromSuperview];
NSLog(#"delete");
}
Crash (rightly) occurs when these events occur simultaneously and overlap.
How do I make sure that " wait your turn :) "?
thanks
If the second animation starts before the first animation is complete, TrofeoView will get reassigned and you will lose the earlier reference. You also flout memory management rules when you release TrofeoView in 'trofeiLaunch:` method. You use this variable again later with having taken ownership. You should only release an object if you are done with it which you are not.
I think the most important thing going down this path is to make sure that three methods refer to the correct object. First one is ok by default so you need to handle the next two. I have modified your code to do that.
- (IBAction)start {
animatingView = [[UIView alloc] initWithFrame:CGRectMake(100, 100, 200, 200)];
animatingView.backgroundColor = [UIColor greenColor];
animatingView.alpha = 0.0;
[UIView beginAnimations:#"Trophy Display" context:animatingView];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[UIView setAnimationDuration:0.5];
[UIImageView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:#selector(animationDidStop:finished:context:)];
animatingView.alpha = 1.0;
[UIView commitAnimations];
[self.window addSubview:animatingView];
}
- (void)animationDidStop:(NSString*)animationID finished:(NSNumber*)finished context:(void *)context {
if ( [animationID isEqualToString:#"Trophy Display"] ) {
UIView *aView = (UIView *)context;
[UIView beginAnimations:nil context:aView];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[UIView setAnimationDuration:0.5];
[UIView setAnimationDelegate:self];
aView.alpha = 0.0;
[UIView commitAnimations];
[self performSelector:#selector(finishAnimation:) withObject:aView afterDelay:1.0];
}
}
- (void)finishAnimation:(UIView*)aView {
[aView removeFromSuperview];
[aView release];
}
I pass the view via context to the second method and withObject: part to the third method. I am hoping the code is self explanatory. Let me know if you don't get this.
Next point is about whether this is the right way. Can't you manage this using an array? Push only if there is no view in display.
I know this code is available to UINavigationController only.
[self.navigationController setNavigationBarHidden:YES animated:YES];
An example using blocks. This will hide a toolbar at the top of an iPad screen.
[UIView animateWithDuration:.7
animations:^(void)
{
CGRect toolbarFrame = self.toolbar.frame;
toolbarFrame.origin.y = -44; // moves iPad Toolbar off screen
self.toolbar.frame = toolbarFrame;
}
completion:^(BOOL finished)
{
self.toolbar.hidden = YES;
}];
Here is the Code:
[UIView beginAnimations:#"hideView" context:nil];
[UIView setAnimationDuration:0.7];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationTransition:UIViewAnimationTransitionNone forView:toolBar cache:YES];
toolbarFrame.origin.y = 380;
toolBar.frame = toolbarFrame;
[UIView commitAnimations];
you can modify the toolBar 'y' origin.