iOS 自定义转场动画篇
来源:互联网 发布:linux下如何删除用户 编辑:程序博客网 时间:2024/05/01 19:51
前言: 自定义转场动画其实并不难, 关键在于能够明白思路, 也就是操作步骤. 本篇博客主要以present转场动画为例, 进行分析, 操作, 如有错误欢迎简信与我交流.
不进行修改的话, presentViewController:animated:completion:
相信这个方法很多人都是用过, 称作模态推出界面, 默认都是从屏幕下方推出新的控制器.
自定义的目的就是为了修改固定的推出方式, 同时加上你想要的动画.
一个关键的概念: UIViewControllerAnimatedTransitioning
控制动画的协议, 需要自己实现这个. 下面来一看看代码如何进行实现.
@interface ViewController ()<UIViewControllerTransitioningDelegate>
跳转点击方法
- (void)click:(UIButton *)sender{ ModelViewController *modalViewController = [ModelViewController new]; // 指定代理 modalViewController.transitioningDelegate = self; // Style = 自定义方式 modalViewController.modalPresentationStyle = UIModalPresentationCustom; [self presentViewController:modalViewController animated:YES completion:NULL];}
UIViewControllerTransitioningDelegate
// 修改动画的两个相关的协议方法, 建议仔细查看UIViewControllerTransitioningDelegate里面的注释-(id<UIViewControllerAnimatedTransitioning>)animationControllerForPresentedController:(UIViewController *)presented presentingController:(UIViewController *)presenting sourceController:(UIViewController *)source{ // 推出动画 - 下面会给出代码 我参照POP动画Demo写的. return [PresentAnimator new];}- (id<UIViewControllerAnimatedTransitioning>)animationControllerForDismissedController:(UIViewController *)dismissed{ // 退出 return [DismissAnimator new];}// 想要实现手势控制可在这个方法中进行修改-(id<UIViewControllerInteractiveTransitioning>)interactionControllerForDismissal:(id<UIViewControllerAnimatedTransitioning>)animator {}
关键在于动画如何实现 分别进行的实现PresentAnimator, DismissAnimator的实现.
UIViewControllerAnimatedTransitioning
使用这个协议进行修改.
@interface PresentAnimator : NSObject <UIViewControllerAnimatedTransitioning>
PresentAnimator.m
// 交互所用时间- (NSTimeInterval)transitionDuration:(id <UIViewControllerContextTransitioning>)transitionContext{ return 0.5f;}// 具体动画方式, 上面提到的POP- (void)animateTransition:(id <UIViewControllerContextTransitioning>)transitionContext{ // 这里拿到即将新推出的VC的View UIView *toView = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey].view; // 这里设置退出view具体如何设置 toView.frame = CGRectMake(0,0, SCREEN_WIDTH, SCREEN_HEIGHT); toView.center = CGPointMake(transitionContext.containerView.center.x, -transitionContext.containerView.center.y); [transitionContext.containerView addSubview:toView]; // pop动画 POPSpringAnimation *positionAnim = [POPSpringAnimation animationWithPropertyNamed:kPOPLayerPositionY]; positionAnim.toValue = @(transitionContext.containerView.center.y); positionAnim.springBounciness = 10; [positionAnim setCompletionBlock:^(POPAnimation *anim, BOOL finished) { [transitionContext completeTransition:YES]; }]; POPSpringAnimation *scaleAnim = [POPSpringAnimation animationWithPropertyNamed:kPOPLayerScaleXY]; scaleAnim.springBounciness = 20; scaleAnim.fromValue = [NSValue valueWithCGPoint:CGPointMake(1.2, 1.4)]; [toView.layer pop_addAnimation:positionAnim forKey:@"positionAnimation"]; [toView.layer pop_addAnimation:scaleAnim forKey:@"scaleAnimation"];}
DismissAnimator.m
- (NSTimeInterval)transitionDuration:(id <UIViewControllerContextTransitioning>)transitionContext{ return 0.5f;}- (void)animateTransition:(id <UIViewControllerContextTransitioning>)transitionContext{ // fromVC 很好理解吧?? 就是从哪个控制器推过来回到哪里去. UIViewController *fromVC = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey]; POPBasicAnimation *offscreenAnimation = [POPBasicAnimation animationWithPropertyNamed:kPOPLayerPositionY]; offscreenAnimation.toValue = @(-fromVC.view.layer.position.y); [offscreenAnimation setCompletionBlock:^(POPAnimation *anim, BOOL finished) { [transitionContext completeTransition:YES]; }]; [fromVC.view.layer pop_addAnimation:offscreenAnimation forKey:@"offscreenAnimation"];}
顺便值得一提的是UINavigationController转场的动画也是可以自定义的. 通过这个
来完成
UINavigationControllerDelegate
// 签订这个协议 self.navigationController.delegate = self;
- (id<UIViewControllerAnimatedTransitioning>) navigationController:(UINavigationController *)navigationController animationControllerForOperation:(UINavigationControllerOperation)operation fromViewController:(UIViewController *)fromVC toViewController:(UIViewController *)toVC{ if (operation == UINavigationControllerOperationPush) { // 动画的方式不变 return [PresentAnimator new]; }else{ return nil; }}
2 0
- iOS 自定义转场动画篇
- iOS自定义转场动画
- iOS自定义转场动画
- IOS 自定义转场动画。
- iOS自定义转场动画
- iOS 自定义转场动画
- iOS自定义转场动画
- iOS - 自定义转场动画
- iOS自定义转场动画
- iOS自定义转场动画
- iOS自定义转场动画
- iOS之转场动画/自定义转场动画
- iOS 自定义push转场动画
- 关于 iOS自定义转场动画
- iOS 自定义转场动画初探
- ios-自定义转场动画基础
- iOS 8自定义动画转场上手指南
- iOS 8自定义动画转场上手指南
- 调用百度地图Javascript API
- xampp禁止远程访问的解决方案
- 今后,若你的公众号还按老方式发广告,罚款高的可达百万。有公众号已经被惩处了。
- jq實現網頁個性title
- 如何将Android studio中Library发布到Jcenter
- iOS 自定义转场动画篇
- Android仿微信朋友圈图片查看器
- python apply()函数
- 关于bootstrap中tab的使用
- Access restriction: The type 'Resource' is not API (restriction on required library 'G:\JAVA\jdk\lib
- 再点一次退出最简单逻辑
- 一种通过AIDL实现DLNA共享服务的方法
- Navicat数据库管理软件
- 带下拉列表提示语的TextView