I am trying add subview with animation effect using the code which work fine for the first time below.
CATransition *transition = [CATransition animation];
transition.duration = 1.0;
transition.type = kCATransitionMoveIn;
transition.subtype = kCATransitionFromRight;
[newView.layer removeAllAnimations]
[newView.layer addAnimation:transition forKey:nil];
[self.masterview addSubview:newView];
There is a back button in newView which removes the View from the superview.
[newView removeFromSuperview];
Now when I try adding newView as subview again using the above code,its first adds the view as a subview(without animation) and again with animation.
Instead of removing newView from superview, why not you can just set a frame like
newView.frame = CGRectMake(0, -500, CGRectGetWidth(newView.frame), CGRectGetHeight(newView.frame));
so that you can just hide it from showing. Just an idea. :-)
When you remove the view from its super view it keeps its frame as it is. So, i think you have to change the newView location to be placed in the new location again.
It will work fine for all the times.But the only difference you have to find is that you need to wai for the duration of animation. It will not animate continuously. It will take a minimum time that you mentioned in the duration.
Related
I have a problem when I want to create a transition between to views inside a container view in iOS application. I want to create an animation that makes my first view goes out sliding to the left and the second coming from the right (like switching between photos, a sort of push in Navigation Controller). I created my animation but the problem is that my subview does not disappear once reached the border of my container view but when it reaches the edge of my screen.
I used this code:
CATransition *transition = [CATransition animation];
transition.duration = animationTime;
transition.type = kCATransitionPush;
transition.subtype = transationSubtype;
[transition setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
transition.removedOnCompletion = YES;
[view.layer addAnimation:transition forKey:nil];
As visible in the image the red square goes out from the screen and not from its container and also the green comes inside from the screen edge and not from the container view edge. I want instead that the animation ends when reaches the container view edge.
I tried anything but I was not able to find something useful.
Try to set clipsToBounds property of the container view to YES
I have one screen, call it video screen where one video is shown with details and comments just like youtube. Now this view is slidable, means whenever user slides the screen, next or previous video comes by changing whole content view.
I am using [UIView transitionWithView] to give it sliding effect. By changing frame of content view, I am doing swiping right code like below.
[UIView transitionWithView:viewTop duration:0.4
options:UIViewAnimationOptionTransitionCrossDissolve
animations:^{
viewTop.frame = CGRectMake(SCREEN_WIDTH, viewTop.frame.origin.y, viewTop.frame.size.width, viewTop.frame.size.height);
}
completion:^(BOOL Finished){
[self getNextVideoDetail];
viewTop.frame = CGRectMake(-SCREEN_WIDTH, viewTop.frame.origin.y, viewTop.frame.size.width, viewTop.frame.size.height);
[UIView transitionWithView:viewTop duration:0.3
options:UIViewAnimationOptionTransitionCrossDissolve
animations:^{
viewTop.frame = CGRectMake(0, viewTop.frame.origin.y, viewTop.frame.size.width, viewTop.frame.size.height);
}
completion:nil
];
}];
Here, viewTop is my content view. Everything works fine but I want that whenever I slide the screen to left, before the view disappears completely, some part of the view should be shown at the right side. Because the code I wrote above will show white self.view and screen will be blank for some mili seconds.
Is it possible with only one UIView to navigate videos like giving mirror effect?
Use this:
CATransition *transition = [CATransition animation];
transition.type = kCATransitionPush;
transition.subtype = kCATransitionFromLeft;
transition.duration = 0.4;
[viewTop.layer addAnimation:transition forKey:nil];
I have an application that first displays a login screen. Once the user logs in, this code is executed:
[UIView transitionWithView:self.view.window
duration:0.7
options:UIViewAnimationOptionTransitionNone
animations:^{
self.view.window.rootViewController = menuController;
} completion:^(BOOL finished) {
// Code to run after animation
}];
This works as expected; however, I would like to define my own custom animation option instead of the flip from left/right option.
A simple example would be sliding the new view controller onto the screen from top to bottom. How can I do this when changing the rootViewController?
Also, is there a completely different approach to animate switching the rootViewController? I am not married to this solution, it is just the closest thing I can find through Google/SO search.
Any help would be great, thanks!
Using a CATransition should be able to give you the sort of animation you're looking for. Granted, I've never actually attempted this specifically with rootViewController, but to slide the view in from top to bottom, I'd suggest trying this:
CATransition *transition = [CATransition animation];
transition.duration = 1.0;
transition.type = kCATransitionFromBottom;
transition.subtype = kCATransitionFade;
CALayer *layer = self.view.window.rootViewController.view.layer;
[layer addAnimation:transition forKey:kCATransition];
For that change to happen you must first add the ViewController and its view to the parent viewController. A simple trick could be add it "on the roof" of your window (starting Y position = -self.view.bounds.size.height). And then use
[UIView animateWithDuration:
delay:
options:
animations:^{}
completion:^(BOOL finished){
self.view.window.rootViewController = menuController;
}];
Then simply inside the animation brackets create the animation you want.
I am trying to get my UIView to slide in from the right in the viewDidLoad method here's what I've got.
CGRect menuFrame = self.menu.frame;
menuFrame.origin.y = menuFrame.size.height+200;
[UIView animateWithDuration:1
delay:0.05
options: UIViewAnimationCurveEaseIn
animations:^{
self.menu.frame = menuFrame;
}
completion:^(BOOL finished){
NSLog(#"Animation Complete!");
}];
I am not sure what has gone wrong here I appreciate any help greatly.
This isn't what you asked, but it is worth saying anyway: viewDidLoad is a bad place for this code. viewDidLoad is called because the view controller has obtained its view, not because that view has appeared or will soon appear in the interface. It might soon appear in the interface, which is why your code has seemed to work up until now, but it might not.
The correct place for this code is probably viewWillAppear or viewDidAppear. You probably want to call this code only once, though, the first time the view appears. If you want to prevent the code from being called, because you've already animated menu into view on an earlier viewDidAppear call, simply include a conditional check to see whether menu already has a frame within the visible view.
By the way, another reason for avoiding things having to do with frames and bounds in viewDidLoad is that if your app launches into landscape and this is your root view, x and y are reversed.
It looks like you are trying to slide your menu in from the bottom as the Y position is pushed down initially by 200.
Usually you start by adding the view as a subview in its offscreen position and then set the onscreen position in the animation block.
And, make sure that you pass 1.0 as the animation duration.
use those transition.subtype for different effects
CATransition* transition = [CATransition animation];
transition.duration = 0.5;
transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
transition.subtype = kCATransitionFromLeft; //kCATransitionMoveIn; //, kCATransitionPush, kCATransitionReveal, kCATransitionFade
//transition.subtype = kCATransitionFromTop; //kCATransitionFromLeft, kCATransitionFromRight, kCATransitionFromTop, kCATransitionFromBottom
[appDelegate.navigation.view.layer addAnimation:transition forKey:nil];
viewController *DairyVC = [[viewController alloc] initWithNibName:#"viewController" bundle:nil];
[appDelegate.navigation pushViewController:DairyVC animated:YES];
I am trying to add a cool animation effect to the UINavigationController, however I found once I do it it will mess up the other views displayed on top of other views which suppose to be on top of it.
e.g. navivc is a UINavigationController
overlayview is a subview of navivc's superview, and placed on top of navivc.
...
CATransform3D t1 = CATransform3DIdentity;
t1.m34 = 1.0/-900;
t1 = CATransform3DScale(t1, 0.7, 0.7, 0.3);
t1 = CATransform3DRotate(t1, 15.0f*M_PI/180.0f, 1, 0, 0);
CABasicAnimation *move = [CABasicAnimation animationWithKeyPath:#"transform" ];
//[move setFromValue:[NSNumber numberWithFloat:0.0f]];
[move setToValue:[NSNumber valueWithCATransform3D:t1]];
[move setDuration:0.3f];
move.removedOnCompletion = NO;
move.fillMode = kCAFillModeForwards;
[move setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut]];
CAAnimationGroup *group = [CAAnimationGroup animation];
group.fillMode = kCAFillModeForwards;
group.removedOnCompletion = NO;
[group setDuration:0.3f];
[group setAnimations:[NSArray arrayWithObjects:move, nil]];
[navivc.view.layer addAnimation:move forKey:#"coolanimation"];
...
The animation is normal and correct, however now navivc's view show on top of overlayview.
Seemed the problem only happen on "transform" path, I tried other key paths, e.g. position, scale, translation etc., all those seemed to be correct. But the 3D transform messed up the view on top.
I would advise against animating a view controller's content view. Instead, create a container view inside the view controller's content view and animate that.
It isn't clear from your post where overlayView is in your view hierarchy, so it's hard to give you specific instructions on how to prevent your animation from covering your overlay view. You might try changing the zPosition of the overlayView's layer to make it appear above the layer you are animating.