Im trying to fade in and out of a light node I have created I just dont know where to call the function accordingly so it will continously fade in and out. Never tried animating anything here is what I have.
- (void)fadeOutIn:(UIView *)view duration:(NSTimeInterval)duration
{
[self enumerateChildNodesWithName:#"//*" usingBlock:^(SKNode *node, BOOL *stop) {
if ([node.name isEqualToString:#"light1"]) {
[UIView animateKeyframesWithDuration:5 delay:2 options:UIViewAnimationOptionRepeat|UIViewAnimationOptionAutoreverse|UIViewAnimationCurveEaseInOut animations:^{
node.alpha = 0;
} completion:^(BOOL finished) {
}];
}
}];
}
where should I call this function?that is fades in and out continously?
Should it be called within an action?
Thank You
Use this for Continue fade in out.
-(void)viewDidAppear:(BOOL)animated{
[UIView animateKeyframesWithDuration:1 delay:0 options:UIViewAnimationOptionRepeat|UIViewAnimationOptionAutoreverse|UIViewAnimationCurveEaseInOut|UIViewAnimationOptionAllowUserInteraction animations:^{
node.alpha = 0;
} completion:^(BOOL finished) {
[UIView animateWithDuration:1 animations:^{
node.alpha = 1;
} completion:nil];
}];
}
-(void) viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
[objAnimate setAlpha:1.0];
[UIView animateKeyframesWithDuration:2.0 delay:0.0 options:UIViewKeyframeAnimationOptionCalculationModeLinear | UIViewAnimationOptionCurveEaseInOut|UIViewAnimationOptionRepeat|UIViewAnimationOptionAutoreverse animations:^{
[objAnimate setAlpha:0.0];
} completion:nil];
}
This will create continuous fade in and out for your object when it appears. If you want to create programmatically a custom object and then use this code then do it after your custom object is added in your view as below (example):
objAnimate = [[UILabel alloc] initWithFrame:CGRectMake(20, 50, 200, 40)];
objAnimate.backgroundColor = [UIColor lightGrayColor];
[objAnimate setAlpha:1.0];
[self.view addSubview:objAnimate];
[UIView animateKeyframesWithDuration:2.0 delay:0.0 options:UIViewKeyframeAnimationOptionCalculationModeLinear | UIViewAnimationOptionCurveEaseInOut|UIViewAnimationOptionRepeat|UIViewAnimationOptionAutoreverse animations:^{
[objAnimate setAlpha:0.0];
} completion:nil];
The view starts animating as soon as its added in your view.
Related
I have a UIView which is initially hidden. I need to setHidden:NO (visible) with dropdown effect...
There's my simple code without effect
-(IBAction)btnAbrirDestaquesClick:(id)sender {
[self.viewDestaques setHidden:NO];
}
A simpler alternative to UIDynamicAnimator in iOS 7 is Spring Animation (a new and powerful UIView block animation), which can give you nice bouncing effect with damping and velocity:
[UIView animateWithDuration:duration
delay:delay
usingSpringWithDamping:damping
initialSpringVelocity:velocity
options:options animations:^{
//Animations
[self.viewDestaques setHidden:NO];
}
completion:^(BOOL finished) {
//Completion Block
}];
If you simply want to animate it try something like this:
[UIView animateWithDuration:.5 delay:0.0 options:UIViewAnimationOptionCurveEaseIn animations:^{
self.viewDestaques.frame = CGRectMake(0, 0, 320,30);
} completion:^(BOOL finished) {
[UIView animateWithDuration:.5 delay:2.0 options:UIViewAnimationOptionCurveEaseIn animations:^{
self.viewDestaques.frame = CGRectMake(0, -30, 320,30);
} completion:^(BOOL finished) {
}];
}];
It worked for me:
-(IBAction)btnAbrirDestaquesClick:(id)sender {
[self.viewDestaques setTranslatesAutoresizingMaskIntoConstraints:YES]; //respeita o frame que eu setar, independentemente das constraints
[self.viewDestaques setFrame:CGRectMake(self.viewDestaques.frame.origin.x, self.viewDestaques.frame.origin.y, self.viewDestaques.frame.size.width, 0)];
[self.viewDestaques setHidden:NO];
while (self.viewDestaques.frame.size.height < self.frameViewDestaquesOriginal.size.height) {
[UIView animateWithDuration:2.0 animations:^{
[self.viewDestaques setFrame:CGRectMake(self.viewDestaques.frame.origin.x, self.viewDestaques.frame.origin.y, self.viewDestaques.frame.size.width, self.view.frame.size.height + 10)];
}completion: ^(BOOL completed){
}];
}
}
I have six button on view with two pair of two grid.The problem is how to show button with animation, here I attach example url how to create this type of animation.
In this example when you click on menu button then show button in side menu view with animation
https://github.com/djardon/SideMenuFrostedAnimated
I tried this but I can't get any success.
I have two button one is btnHome and second is btnAbout:
-(void)animationStart
{
[btnHome setAlpha:0.f];
[UIView animateWithDuration:1.f delay:0.f options:UIViewAnimationOptionCurveEaseIn animations:^{
[btnHome setAlpha:0.f];
} completion:^(BOOL finished) {
[UIView animateWithDuration:2.f delay:0.f options:UIViewAnimationOptionCurveEaseInOut animations:^{
[btnHome setAlpha:1.f];
[self animationStart2];
} completion:nil];
}];
}
-(void)animationStart2
{
[btnAbout setAlpha:0.0f];
//fade in
[UIView animateWithDuration:2.0f animations:^{
[btnAbout setAlpha:1.0f];
} completion:^(BOOL finished) {
//fade out
[UIView animateWithDuration:2.0f animations:^{
[btnAbout setAlpha:0.0f];
} completion:nil];
}];
}
Try this.
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
btnHome.alpha=0.0;
btnAbout.alpha=0.0;
}
-(void)animationStart
{
[UIView animateWithDuration:0.4f delay:0.0f options: UIViewAnimationOptionCurveEaseInOut animations:^{
btnHome.alpha=1.0;
} completion:^(BOOL finished) {
[self animationStart2];
}];
}
-(void)animationStart2
{
[UIView animateWithDuration:0.4f delay:0.0f options: UIViewAnimationOptionCurveEaseInOut animations:^{
btnAbout.alpha=1.0;
} completion:^(BOOL finished) {
}];
}
- (IBAction)btnClick:(id)sender
{
[self animationStart];
}
Here initially i am setting the buttons alpha value to 0.0f. On click of third button i am showing these two buttons.
I am trying to flip transition on the same ViewController, I have a button for trigger transition. I want to change theme color when i press to button via flip transition.
i used this code part:
- (IBAction)changeThemeButtonTapped:(id)sender
{
int tempThemeColor = [[NSUserDefaults standardUserDefaults]integerForKey:#"themeColor"];
if (tempThemeColor == 10) {
[self loadTheme];
[UIView transitionFromView:self.view
toView:self.view
duration:1.0
options:UIViewAnimationOptionTransitionFlipFromLeft
completion:^(BOOL finished) {
NSLog(#"finished");
}];
}else{
[self loadTheme];
[UIView transitionFromView:self.view
toView:self.view
duration:1.0
options:UIViewAnimationOptionTransitionFlipFromRight
completion:^(BOOL finished) {
NSLog(#"finished");
}];
}
}
when i press to button, view turns to black. Is there any way to do? What is my mistake?
Thank you for your answer and interest.
I found my question's answer.
if (tempThemeColor == 10) {
[self loadTheme];
[UIView transitionWithView:self.view
duration:1.0
options:UIViewAnimationOptionTransitionFlipFromLeft
animations:^{
} completion:^(BOOL finished) {
}];
}else{
[self loadTheme];
[UIView transitionWithView:self.view
duration:1.0
options:UIViewAnimationOptionTransitionFlipFromRight
animations:^{
} completion:^(BOOL finished) {
}];
}
Before doing animation try to change the window/super view of the view's color
if (self.view.superview) {
self.view.superview.backgroundColor = [UIColor whiteColor];
}
self.view.window.backgroundColor = [UIColor whiteColor];
I have buttons on some viewController view. touchUpInside: methods present modal view controllers. I want to present them from center of tapped button frame. How can I achieve this result?
I tried:
webController.view.transform = CGAffineTransformScale(CGAffineTransformIdentity, self.buuton.center.x, self.button.center.y);
[self presentViewController:webController animated:NO completion:^{
// some code
}];
but it damaged my UI. I also tried to use [UIView beginAnimation], no success.
I have achieved something similar with a trick, adding destvc.view as subview to sourcevc.view, see below my functions to scale in and scale out.
You can use the same trick only as visual effect, and present your vc at the end, without animation:
+(void) animWithAlpha:(float)alpha view:(UIView*)view{
[UIView animateWithDuration:0.15
delay:0.0
options:UIViewAnimationOptionBeginFromCurrentState
animations:^{
view.alpha = alpha;
}
completion:^(BOOL fin) {}];
}
+(void) zoomIN:(UIViewController*)sourceViewController destination:(UIViewController*)destinationViewController fromPoint:(CGPoint)point{
[sourceViewController.view addSubview:destinationViewController.view];
[destinationViewController.view setFrame:sourceViewController.view.window.frame];
[destinationViewController.view setTransform:CGAffineTransformMakeScale(0.15, 0.1)];
destinationViewController.view.center = point;
sourceViewController.view.userInteractionEnabled=NO;
destinationViewController.view.alpha = 0.5;
[self animWithAlpha:1 view:destinationViewController.view];
[UIView animateWithDuration:0.4
delay:0.0
options:UIViewAnimationOptionCurveEaseInOut
animations:^{
[destinationViewController.view setTransform:CGAffineTransformMakeScale(1, 1)];
destinationViewController.view.center = sourceViewController.view.center;
}
completion:^(BOOL finished){
if(finished){
[destinationViewController.view setTransform:CGAffineTransformMakeScale(1, 1)];
destinationViewController.view.center = sourceViewController.view.center;
sourceViewController.view.userInteractionEnabled=YES;
}
}];
}
+(void) zoomOUT:(UIViewController*)sourceViewController destination:(UIView*)destination toPoint:(CGPoint)point{
[sourceViewController.view setTransform:CGAffineTransformMakeScale(1.0, 1.0)];
[sourceViewController.parentViewController.view setUserInteractionEnabled:NO];
[destination setUserInteractionEnabled:NO];
[UIView animateWithDuration:0.4
delay:0.0
options:UIViewAnimationOptionCurveEaseOut
animations:^{
[sourceViewController.view setTransform:CGAffineTransformMakeScale(0.01, 0.01)];
[sourceViewController.view setAlpha:1.0];
sourceViewController.view.center = point;
}
completion:^(BOOL finished){
if(finished){
[sourceViewController.view setTransform:CGAffineTransformMakeScale(1.0, 1.0)];
[sourceViewController.view removeFromSuperview];
sourceViewController.view.center = point;
[destination setUserInteractionEnabled:YES];
}
}
You have to do that through addSubview: method and doing something like:
- (void) appear: (UIView *) view fromPoint: (CGPoint) point
{
[view setBounds:self.view.bounds];
[view setCenter:point];
[view setAlpha:0.0];
[self addSubview:view];
[view setTransform:CGAffineTransformMakeScale(0, 0)];
[UIView animateWithDuration:0.3 animations:^{
[view setCenter:self.view.center];
[view setTransform:CGAffineTransformIdentity];
[view setAlpha:1.0];
}];
}
You have to create the view before call the method.
Good Luck!
I'm trying to hide a UITabBarController and UINavigationController simultaneously when a button is touch. I found a very nice code snippet here How to hide uitabbarcontroller but I have problem when trying to hide and animate both UINavigationController and the tabbarcontroller. I also found a lot of examples on the internet when they hide the tabbar using self.tabBarController.tabBar.hidden = YES but that only hides the button items not the black bar at the bottom.
After playing a lot around I can get to make both animate correctly because I think that it's related to the hiding of the Navigation Controller which makes the size of the whole window to change on the fly.
-(IBAction)touchImage:(id)sender {
if (isImageFullScreen) {
isImageFullScreen = NO;
[self.navigationController setNavigationBarHidden:NO animated:YES];
[UIView transitionWithView:self.view
duration:0.5
options:UIViewAnimationOptionCurveLinear
animations:^
{
hotelImageButton.frame = CGRectMake(0,20,320,92);
[self showTabBar:self.tabBarController];
}
completion:^(BOOL finished)
{
}];
} else {
isImageFullScreen = YES;
[self.navigationController setNavigationBarHidden:YES animated:YES];
[UIView transitionWithView:self.view
duration:0.5
options:UIViewAnimationOptionCurveLinear
animations:^
{
hotelImageButton.frame = CGRectMake(0,0,320,480);
[self hideTabBar:self.tabBarController];
}
completion:^(BOOL finished)
{
}];
}
}
The hideTabBar and showTabBar methods are the ones from the other post I linked above.
I also tried some other combinations but I can't make it look good. Any ideas?
Thanks in advance.
I tried that code now and I see that the UITabBar show animation doesn't take place smoothly.
I managed to make it smoother by adjusting the duration period for the tabbar showing animation to be lower.
[UIView setAnimationDuration:0.2];
Hopefully that works.
EDIT:
Please try this code, it resizes the parent view to be bigger in 1 animation transaction in such a way that only the bars are hidden and the content is shown.
- (IBAction)TestButton1:(UIButton *)sender {
if(!isAnimating){
if(isTabBarAndNavBarHidden){
[UIView transitionWithView:self.view
duration:0.5
options:UIViewAnimationOptionTransitionNone
animations:^
{
isAnimating=YES;
CGFloat statusBar_height=[[UIApplication sharedApplication] statusBarFrame].size.height;
CGFloat screen_height=[UIScreen mainScreen].bounds.size.height;
[self.tabBarController.view setFrame:CGRectMake(self.tabBarController.view.frame.origin.x, 0, self.tabBarController.view.frame.size.width, screen_height)];
[self.navigationController.navigationBar setFrame:CGRectMake(self.navigationController.navigationBar.frame.origin.x, statusBar_height, self.navigationController.navigationBar.frame.size.width, self.navigationController.navigationBar.frame.size.height)];
}
completion:^(BOOL finished)
{
isTabBarAndNavBarHidden=NO;
isAnimating=NO;
}];
}else{
[UIView transitionWithView:self.view
duration:0.5
options:UIViewAnimationOptionTransitionNone
animations:^
{
isAnimating=YES;
CGFloat statusBar_height=[[UIApplication sharedApplication] statusBarFrame].size.height;
CGFloat screen_height=[UIScreen mainScreen].bounds.size.height;
[self.tabBarController.view setFrame:CGRectMake(self.tabBarController.view.frame.origin.x, statusBar_height-self.navigationController.navigationBar.frame.size.height, self.tabBarController.view.frame.size.width, screen_height+self.navigationController.navigationBar.frame.size.height+self.tabBarController.tabBar.frame.size.height-statusBar_height)];
[self.navigationController.navigationBar setFrame:CGRectMake(self.navigationController.navigationBar.frame.origin.x, 0, self.navigationController.navigationBar.frame.size.width, self.navigationController.navigationBar.frame.size.height)];
}
completion:^(BOOL finished)
{
isTabBarAndNavBarHidden=YES;
isAnimating=NO;
}];
}
}
}
This code is for iPhone 4/4S.
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
if (self.lastContentOffset > scrollView.contentOffset.y)
{
NSLog(#"Scrolling up");
[UIView animateWithDuration:.5 delay:0.0 options:UIViewAnimationOptionCurveEaseIn animations:^{
[self.tabBarController.tabBar setFrame:CGRectMake(0, 430, 320, 50)];
[self.navigationController.navigationBar setFrame:CGRectMake(0, 20, self.navigationController.navigationBar.frame.size.width,self.navigationController.navigationBar.frame.size.height)];
} completion:
^(BOOL finished) {
[UIView animateWithDuration:.5 delay:0 options:UIViewAnimationOptionCurveEaseIn animations:^{
} completion:^(BOOL finished) {
//
}];
}];
}
else if (self.lastContentOffset < scrollView.contentOffset.y)
{
[UIView animateWithDuration:.5 delay:0.0 options:UIViewAnimationOptionCurveEaseIn animations:^{
[self.navigationController.navigationBar setFrame:CGRectMake(0, -60, self.navigationController.navigationBar.frame.size.width, self.navigationController.navigationBar.frame.size.height)];
[self.tabBarController.tabBar setFrame:CGRectMake(0, 480, 320, 50)];
} completion:
^(BOOL finished) {
[UIView animateWithDuration:.5 delay:2.0 options:UIViewAnimationOptionCurveEaseIn animations:^{
} completion:^(BOOL finished) {
}];
}];
NSLog(#"Scrolling Down");
}
self.lastContentOffset = scrollView.contentOffset.y;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self.tabBarController.tabBar setFrame:CGRectMake(0, 430, 320, 50)];
[self.navigationController.navigationBar setFrame:CGRectMake(0, 20, self.navigationController.navigationBar.frame.size.width,self.navigationController.navigationBar.frame.size.height)];
// Do any additional setup after loading the view.
}