IOS transition Animation

IOS transition Animation

Generally, we use two types of transfer push and present.

Present

/** 1. set proxy-(instancetype) init {self = [super init]; if (self) {self. transitioningDelegate = self; self. modalPresentationStyle = UIModalPresentationCustom;} return self;} 2. add protocol <UIViewControllerTransitioningDelegate> 3. rewrite protocol method-Initialize in Protocol method-(id <UIViewControllerAnimatedTransitioning>) animationControllerForPresentedController :( UIViewController *) presented presentingController :( UIViewController *) presenting sourceController :( UIViewController *) source {}-(id <UIViewControllerAnimatedTransitioning>) animationControllerForDismissedController :( UIViewController *) dismissed {}**/

2. push

When the first controller pushes the second Controller

ViewController2 * vc = [[ViewController2 alloc] init]; self. navigationController. delegate = vc; // you must enter this sentence [self. navigationController pushViewController: vc animated: YES];

Second Controller

@interface ViewController2 : UIViewController<UINavigationControllerDelegate>@end

Proxy Method

- (id<UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController *)navigationController animationControllerForOperation:(UINavigationControllerOperation)operation fromViewController:(UIViewController *)fromVC toViewController:(UIViewController *)toVC {}

The above is the place where push and present occur, both need to return a UIViewControllerAnimatedTransitioning

So we write a class

@ Interface WJTransiation_Mobile: NSObject <UIViewControllerAnimatedTransitioning>

@ End

Then modify the Protocol Method

// Animation time

-(NSTimeInterval) transitionDuration :( nullable id <UIViewControllerContextTransitioning>) transitionContext;

// Custom transition Animation

-(Void) animateTransition :( id <UIViewControllerContextTransitioning>) transitionContext;

Execute transition Animation

1. Get the front and back Controllers

 　　UIViewController *toVC = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];    UIViewController *fromVC = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];

2. Obtain the transition animation View

UIView *containerView = [transitionContext containerView];

3. Add the view to which the front and back controllers need to be animated to containerView.

 　　[containerView addSubview:tempView];    [containerView addSubview:toVC.view];

4. Execute your own animation

Demo link: http://pan.baidu.com/s/1kTPPUMb

:

Supplement:

// Dynamically Add the transiationView attribute @ interface UIViewController (transiationView) @ property (nonatomic, strong) UIView * transiationView; @ end

#import <objc/runtime.h>@implementation UIViewController (transiationView)static char transiationViewKey;- (void)setTransiationView:(UIView *)transiationView {    return objc_setAssociatedObject(self, &transiationViewKey, transiationView, OBJC_ASSOCIATION_RETAIN_NONATOMIC);}- (UIView *)transiationView {     return objc_getAssociatedObject(self, &transiationViewKey);}@end