The main UIView contains two subviews - UIView_1 and UIView_2.
In the UIView_2, there is a button to show or hide the UIView_1.
For example, when a user touches the button to show the UIView_1, then UIView_1 will slide down and UIView_2 will push downwards with transition.
I have very little knowledge in animation. Can someone show me some sample code for reference?
Should I use CGAffineTransformMakeTranslation?
Thanks.
You don't need anything so complex. Just change the view's frame size.
NSTimeInterval animationDuration = /* determine length of animation */;
CGRect newFrameSize = /* determine what the frame size should be */;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:animationDuration];
theViewToChange.frame = newFrameSize;
[UIView commitAnimations];
Simply Hide/show with fadein/out effect
`
/To Show/
sliderView.hidden = NO;
sliderView.alpha = 0.1;
[UIView animateWithDuration:0.25 animations:^{
sliderView.alpha = 1.0f;
} completion:^(BOOL finished) {
// do some
}];
/To hide/
[UIView animateWithDuration:0.25 animations:^{
sliderView.frame = CGRectMake(130, 30, 0, 0);
[sliderView setAlpha:0.1f];
} completion:^(BOOL finished) {
sliderView.hidden = YES;
}];
`
It depends on what you want to do with UIView_2.
Place UIView_1 below UIView_2 in Interface Builder.
Size UIView_2 to take up all the space below the UINavigationBar.
Use the following code to either resize (using uiview2_resized_rect) the frame for UIView_2, or translate/move the frame for UIView_2 (using uiview2_translated_rect ):
CGRect uiview1_original_rect = UIView_1.frame;
CGRect uiview2_original_rect = UIView_2.frame;
CGRect uiview2_translated_rect = CGRectMake(uiview2_original_rect.origin.x,
uiview2_original_rect.origin.y+uiview1_original_rect.size.height,
uiview2_original_rect.size.width,
uiview2_original_rect.size.height);
CGRect uiview2_resized_rect = CGRectMake(uiview2_original_rect.origin.x,
uiview2_original_rect.origin.y+uiview1_original_rect.size.height,
uiview2_original_rect.size.width,
uiview2_original_rect.size.height-uiview1_original_rect.size.height);
[UIView animateWithDuration:0.300 delay:0.0
options:UIViewAnimationOptionCurveEaseInOut|UIViewAnimationOptionBeginFromCurrentState
animations:^{
//uncomment this and comment out the other if you want to move UIView_2 down to show UIView_1
//UIView_2.frame = uiview2_translated_rect;
UIView_2.frame = uiview2_resized_rect;
} completion:^(BOOL finished) {
}];
Related
Are emerging in the subview scrolling animation. However actionsheet place when you scroll subview, not again appear in the first place.
if(checkboxState == 0)
{
NSTimeInterval animationDuration = 0.8;
CGRect newFrameSize = CGRectMake(0, 155,320,120);
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:animationDuration];
subview.frame = newFrameSize;
[UIView commitAnimations];
}
else if(checkboxState == 1)
{
NSTimeInterval animationDuration = 0.8;
CGRect newFrameSize = CGRectMake(0, 105,320,120);
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:animationDuration];
subview.frame = newFrameSize;
[UIView commitAnimations];
}
Pressing the View is a checkbox in the above code is provided to move up and down. However, even though actionsheet slipped up again when the first view is in place.
View is scrolled up, how can we keep it that way, even if opened actionsheet?
Use [UIView setAnimationBeginsFromCurrentState:YES]; after both "beginAnimation".
Then the previous changes will be saved.
I fixed the problem by using the
subview.bounds
Thank you for your helps.
I have an application in which I had a button on the navigationbar.
When clicking on that I need to add a subview to the self.view.
DemoViewController *demoViewController1 = [[DemoViewController alloc] initWithNibName:#"DemoViewController" bundle:nil];
CGRect frame=demoViewController1.view.frame;
frame.origin.y = -300;
[self.view addSubview:demoViewController1.view];
[UIView animateWithDuration:0.5
animations:^{
CGRect frame1 = frame;
frame1.origin.y = 0;
demoViewController1.view.frame = frame1;
}];
I was tried by setting the frame origin y of the adding view(it is of another view controller).to some negetive value and by clicking bring it to 0.but it doesnt have that drop down effect.
I need to add the view with an animation like drop down view. and when pressed again on the button need to remove also like this.
Can anybody help me on this?
You add the view as subview with a frame that is not on the screen (e.g. negative y coordinate) and modify the frame animated:
MyView *myView = [[MyView alloc] initWithFrame:CGRectMake(50, -200, 200, 200)];
[self.view addSubview:myView];
[UIView animateWithDuration:0.3
animations:^{
CGRect frame = myView.frame;
frame.origin.y = 0;
myView.frame = frame;
}];
And the code for removal:
[UIView animateWithDuration:0.3
animations:^{
CGRect frame = myView.frame;
frame.origin.y = -1 * frame.size.height;
myView.frame = frame;
}
completion:^(BOOL finished) {
[myView removeFromSuperview];
}];
Edit:
Replace your code with this:
DemoViewController *demoViewController1 = [[DemoViewController alloc] initWithNibName:#"DemoViewController" bundle:nil];
CGRect frame=demoViewController1.view.frame;
frame.origin.y = -300;
demoViewController1.view.frame = frame; // You forgot this line
[self.view addSubview:demoViewController1.view];
[UIView animateWithDuration:0.5
animations:^{
CGRect frame1 = demoViewController1.view.frame;
frame1.origin.y = 0;
demoViewController1.view.frame = frame1;
}];
First keep ur view at bottom.
when it's clicked first time
do this
[UIView animateWithDuration:0.3 animations:^{
//keep points that's in a screen
self.view.center = CGPointMake(x,y,width,height);
}];
when it's clicked second time
give points below the visible screen
[UIView animateWithDuration:0.3 animations:^{
//keep points that's in a screen
self.view.center = CGPointMake(x,y,width,height);
}];
Let me know if you find a better way than this.
[self.yourView setFrame:setYourInitialFrame];
[UIView animateWithDuration: 1.00 animations:^{
[self.yourView setFrame:setYourFinalFrame];
}];
I'd like to have an image in my iphone app "pop-in" on screen rather than just appearing. By "pop-in" I mean that it would grow from a small dot to its actual size. For reference, this is exactly the same as the "pop" animation effect in Keynote.
I'm completely new to iOS animations, so if someone could point me in the direction on the animation effects I would need to use, it would be greatly appreciated.
Thanks
Brian
UPDATE
I've added this code from the suggestions below. This works but it scales my image down, rather than up. I know that is because I have 0.01 as the transform scale size, but I would like to know how I can start out with an image of size 0.0 and scale up to 1. Is it just a matter to setting the size of my image to 0?
Thanks
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration: 0.2];
image.transform = CGAffineTransformMakeScale(0.01, 0.01);
[UIView setAnimationDelegate:self];
[UIView commitAnimations];
The effect you’re looking for is something like this:
// instantaneously make the image view small (scaled to 1% of its actual size)
view.transform = CGAffineTransformMakeScale(0.01, 0.01);
[UIView animateWithDuration:0.2 delay:0 options:UIViewAnimationOptionCurveEaseOut animations:^{
// animate it to the identity transform (100% scale)
view.transform = CGAffineTransformIdentity;
} completion:^(BOOL finished){
// if you want to do something once the animation finishes, put it here
}];
if you want something like Facebook does on liking any post then use this
-(void)animateButton:(UIButton *)sender{
UIButton * btn = (UIButton *)sender;
[UIView animateWithDuration:0.3/1.5 animations:^{
btn.transform = CGAffineTransformScale(CGAffineTransformIdentity, 1.4, 1.4); // scales up the view of button
} completion:^(BOOL finished) {
[UIView animateWithDuration:0.3/2 animations:^{
btn.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.7, 0.7);// scales down the view of button
} completion:^(BOOL finished) {
[UIView animateWithDuration:0.3/2 animations:^{
btn.transform = CGAffineTransformIdentity; // at the end sets the original identity of the button
}];
}];
}];}
just call this method when you want to animate the view
if you have text and image on the button and you just want to animate the image of the button then just replace "btn" with "btn.imageView" , this will just produce animation on the image view property of the button.
Hope it helps
All the best.
You have to animate the frame of the view, to shrink it from zero to the final state.
This can be done for example with UIView block animation.
So for example start with your view as an IBOutlet property self.myView with the final size and position, but set the hidden flag.
Then when you want it to appear use the following:
// Save old frame as final stater and set it to zero size for the start of the animation
// But keep the same center position, so it just grows and don't move around
CGRect oldFrame = self.myView.frame;
CGRect oldCenter = self.myView.center;
self.myView.frame = CGRectZero;
self.myView.center = oldCenter;
self.myView.hidden = NO;
NSTimeInterval duration = 0.3;
[UIView animateWithDuration:duration delay:0.0 options:UIViewAnimationOptionAllowUserInteraction animations:^{
// New position and size after the animation should be the same as in Interface Builder
self.myView.frame = oldFrame
}
completion:^(BOOL finished){
// You can do some stuff here after the animation finished
}];
Swift 2.0 version
view.transform = CGAffineTransformMakeScale(0.01, 0.01);
UIView.animateWithDuration(0.2, delay: 0, options: .CurveEaseOut, animations: { () -> Void in
// animate it to the identity transform (100% scale)
self.view.transform = CGAffineTransformIdentity;
}) { (finished) -> Void in
// if you want to do something once the animation finishes, put it here
}
For that you will have to use a simple UIView
Add the UIview to your current view.
- (void) initPopUpView
{
popup.alpha = 0;
popup.frame = CGRectMake (160, 240, 0, 0);
[self.view addSubview:popup];
}
- (void) animatePopUpShow
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3];
[UIView setAnimationDelegate:self];
[UIView setAnimationWillStartSelector:#selector(initPopUpView)];
popup.alpha = 1;
popup.frame = CGRectMake (20, 40, 300, 400);
[UIView commitAnimations];
}
I have a UIButton somewhere on my view. On touch event of button I making a UIView appear. The UIAnimation I have used make the view appear from top of window. But I want it to appear from button.frame.origin.y . Before touching the button the view is not visible. On touching the button view should start appearing from above position.
Here is the code :
-(IBAction) ShowInfowView:(id)sender{
CGRect rect = viewInfo.frame;
rect.origin.y = rect.size.height - rect.size.height+58.0;
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.70];
[UIView setAnimationDelay:0.0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
viewInfo.frame = rect;
[UIView commitAnimations];
}
This is how I am hiding the view again :
-(IBAction) HideInfoView:(id)sender{
CGRect rect = viewInfo.frame;
rect.origin.y = -rect.size.height;
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.70];
[UIView setAnimationDelay:0.0];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
viewInfo.frame = rect;
[UIView commitAnimations];
}
In viewDidLoad I am doing the following :
CGRect rect = viewInfo.frame;
rect.origin.y = -rect.size.height;
viewInfo.frame = rect;
UPDATE:
Please see this example. Here view is appearing from top of screen. I want it to appear from button y axis. For that matter please consider button y position a bit upwards.
So you want a slide-in effect, but not from the top of the screen, just some arbitrary value?
One way to do it:
1) You should create a view that has the dimensions and position of your desired view AFTER animation finishes, we'll call it baseview.
2) Set this baseview property clipsToBounds to YES. This will make all subviews that are outside of the baseview's frame invisible.
3) Add your animating view as a subview of the baseview, but set the frame so it is invisible (by plcacing it above the baseview):
frame = CGRectMake(0, -AnimViewHeight, AnimViewWidth, AnimViewHeight);
4) Animate the animview frame:
//put this inside of an animation block
AnimView.frame = CGRectMake(0, 0, AnimViewWidth, AnimViewHeight);
EDIT:
Example:
//define the tags so we can easily access the views later
#define BASEVIEW_TAG 100
#define INFOVIEW_TAG 101
- (void) showInfo
{
//replace the following lines with preparing your real info view
UIView * infoView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
[infoView setBackgroundColor: [UIColor yellowColor]];
[infoView setTag: INFOVIEW_TAG];
//this is the frame of the info view AFTER the animation finishes (again, replace with real values)
CGRect targetframe = CGRectMake(100, 100, 100, 100);
//create an invisible baseview
UIView * baseview = [[UIView alloc] initWithFrame:targetframe];
[baseview setBackgroundColor: [UIColor clearColor]];
[baseview setClipsToBounds: YES]; //so it cuts everything outside of its bounds
[baseview setTag: BASEVIEW_TAG];
//add the nfoview to the baseview, and set it above the bounds frame
[baseview addSubview: infoView];
[infoView setFrame:CGRectMake(0, -infoView.bounds.size.height,
infoView.bounds.size.width, infoView.bounds.size.height)];
//add the baseview to the main view
[self.view addSubview: baseview];
//slide the view in
[UIView animateWithDuration: 1.0 animations:^{
[infoView setFrame: baseview.bounds];
}];
//if not using ARC, release the views
[infoview release];
[baseview release];
}
- (void) hideinfo
{
//get the views
UIView * baseView = [self.view viewWithTag: BASEVIEW_TAG];
UIView * infoView = [baseView viewWithTag: INFOVIEW_TAG];
//target frame for infoview - slide up
CGRect out_frame = CGRectMake(0, -infoView.bounds.size.height,
infoView.bounds.size.width, infoView.bounds.size.height);
//animate slide out
[UIView animateWithDuration:1.0
animations:^{
[infoView setFrame: out_frame];
} completion:^(BOOL finished) {
[baseView removeFromSuperview];
}];
}
I have done exactly what you're trying in my recent project.
The following steps should make this work:
1. In your viewDidLoad: you init your viewToFadeIn like this:
viewToFadeIn = [[UIView alloc] initWithFrame:CGRectMake(20,self.view.frame.size.height+10, self.view.frame.size.widh-40, 200)];
//its important to initalize it outside your view
//your customization of this view
[self.view addSubview:viewToFadeIn];
2.your ShowInfowView: Method should look like this:
` -(IBAction) ShowInfowView:(id)sender{
[UIView beginAnimations:#"fadeIn" context:NULL];
[UIView setAnimationDuration:0.25];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:#selector(animationFinished:finished:context:)];
viewToFadeIn.transform = CGAffineTransformMakeTranslation(0, -290);
//290 is in my case, try a little for your correct value
[UIView commitAnimations];
}
3.yourHideInfoView:` Method looks like this
-(IBAction) HideInfoView:(id)sender{
[UIView beginAnimations:#"fadeOut" context:NULL];
[UIView setAnimationDuration:0.25];
[UIView setAnimationDelegate:self];
viewToFadeIn.transform = CGAffineTransformMakeTranslation(0, 0);
[UIView commitAnimations];
}
EDIT:
4. animationFinishedMethod:
- (void)animationFinished:(NSString *)animationID finished:(BOOL)finished context:(void *)context{
if ([animationID isEqual:#"fadeIn"]) {
//Do stuff
}
if ([animationID isEqual:#"fadeOut"]) {
//Do stuff
}
}
SEE THIS
This should do the trick. Good luck
Your problem is not clear (for me).
What is this?
rect.origin.y = rect.size.height - rect.size.height+58.0;
Is 58 origin of your UIButton?
You should use sender.frame etc
Use blocks to animate like this
[UIView animateWithDuration:0.5f animations:^{
// Animation here
} completion:^(BOOL finished) {
// onComplete
}];
- (void) slideIn{
//This assumes the view and the button are in the same superview, if they're not, you'll need to convert the rects
//I'm calling the animated view: view, and the button: button...easy enough
view.clipToBounds = YES;
CGRect buttonRect = button.frame;
CGRect viewRect = CGRectMake(buttonRect.origin.x, buttonRect.origin.y + buttonRect.size.height, view.bounds.size.width, 0);
CGFloat intendedViewHeight = view.height;
view.frame = viewRect;
viewRect.size.height = intendedViewHeight;
[UIView animateWithDuration:.75 delay:0.0f options:UIViewAnimationOptionCurveEaseOut animations:^{
view.frame = viewRect;
}completion:nil];
}
This will cause the the view to appear to slide out from under the button. To slide the view back in, you just reverse the animations. If you wish to slide it up from the button, you'll need to make sure your starting 'y' is the 'y' value of the button (rather than the 'y' + 'height') and animate both the height and y values of the view that needs animating.
I have an image "image1" which is a UIButton and what I want is that if I touch this button, the width of the image is multiplied by two (with animation)not the height just the width.
sorry for my english I'm french :/
This is fairly easy with block animation. Simply try:
imageView.contentMode = UIViewContentModeScaleAspectFit;
[UIView animateWithDuration:1.0
animations:^{
CGRect newRect = imageView.frame;
int movementToTheLeft = imageView.frame.size.width / 2;
newRect.size.width *= 2;
newRect.origin.x -= movementToTheLeft;
imageView.frame = newRect;
}
completion:^(BOOL finished){
[UIView animateWithDuration:1.0
animations:^{
NSLog(#"Scaled!");// Anything can go in this completion block, it should be used for any logic you need after the animation.
}
completion:^(BOOL finished){
;
}];
This should scale your imageView's width by 2. Hope that helps!
The old fashioned way (not recommended after iOS 4.0, but still works):
[UIView beginAnimations:#"widen" context:nil];
[UIView setAnimationDuration:1.0];
CGRect newRect = imageView.frame;
newRect.width *= 2;
imageView.frame = newRect;
// ... set more parameters if desired
[UIView commitAnimations];