iOS - Animation之ViewAnimation

這里不僅有present和dismiss在viewController中跳轉(zhuǎn),還有各種動畫push和pop,當然view的動畫出場也是必不可少的。拿了直接用即可,簡單粗暴看代碼,這里可以讓你知其然,知其所以然。

PresentAnimation

實現(xiàn)UIViewControllerTransitioningDelegate的代理方法,把present從下面出來的view從右邊動畫出來,具體代碼看github代碼,具體方法如下:

-(NSTimeInterval)transitionDuration:(id<UIViewControllerContextTransitioning>)transitionContext{
return 1.0;
}
-(void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionContext{
 UIViewController * fromViewController = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];
UIViewController * toViewController = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];
UIView *containerView =  [transitionContext containerView];
UIView *fromView = nil;
UIView *toView = nil;

if ([transitionContext respondsToSelector:@selector(viewForKey:)]) {
    fromView = [transitionContext viewForKey:UITransitionContextFromViewKey];
    toView = [transitionContext viewForKey:UITransitionContextToViewKey];
}else{
    fromView = fromViewController.view;
    toView = toViewController.view;
}
BOOL isPresent = (toViewController.presentingViewController == fromViewController);
CGRect fromFrame = [transitionContext initialFrameForViewController:fromViewController];
CGRect toFrame = [transitionContext finalFrameForViewController:toViewController];
if (isPresent) {
    fromView.frame = fromFrame;
    toView.frame = CGRectOffset(toFrame, toFrame.size.width, 0);
    [containerView addSubview:toView];
}  
NSTimeInterval transitionDuration = [self transitionDuration:transitionContext];
[UIView animateWithDuration:transitionDuration animations:^{
    if (isPresent) {
        toView.frame = toFrame;
        fromView.frame = CGRectOffset(fromFrame, fromFrame.size.width*0.3*-1, 0);
    }
} completion:^(BOOL finished) {
    BOOL isCancelled = [transitionContext transitionWasCancelled];
    if (isCancelled)
        [toView removeFromSuperview]; 
    [transitionContext completeTransition:!isCancelled];
}];

}

  • (id<UIViewControllerAnimatedTransitioning>)animationControllerForPresentedController:(UIViewController *)presented presentingController:(UIViewController *)presenting sourceController:(UIViewController *)source{
    
return (id)[[PresentAnimation alloc]init];
}

DismissAnimation

- (NSTimeInterval)transitionDuration:(id<UIViewControllerContextTransitioning>)transitionContext{
return 1.0;
}
-(void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionContext{
UIViewController *fromViewController = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];
UIViewController *toViewController = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];

UIView *containerView = [transitionContext containerView];
UIView *fromView = nil;
UIView *toView = nil;

if ([transitionContext respondsToSelector:@selector(viewForKey:)]) {
    fromView = [transitionContext viewForKey:UITransitionContextFromViewKey];
    toView = [transitionContext viewForKey:UITransitionContextToViewKey];
}else{
    fromView = fromViewController.view;
    toView = toViewController.view;
}

BOOL isDismiss = (fromViewController.presentingViewController == toViewController);   
CGRect fromFrame = [transitionContext initialFrameForViewController:fromViewController];
CGRect toFrame = [transitionContext finalFrameForViewController:toViewController];

if (isDismiss) {
    fromView.frame = fromFrame;
    toView.frame = CGRectOffset(toFrame, toFrame.size.width*0.3*-1, 0);
    [containerView insertSubview:toView belowSubview:fromView];
}
NSTimeInterval transitionDuration = [self transitionDuration:transitionContext];
[UIView animateWithDuration:transitionDuration animations:^{
    if (isDismiss) {
        toView.frame = toFrame;
        fromView.frame = CGRectOffset(fromFrame, fromFrame.size.width, 0);
    }
} completion:^(BOOL finished) {
    BOOL isCancel = [transitionContext transitionWasCancelled];
    if (isCancel) {
        [toView removeFromSuperview];
    }
    [transitionContext completeTransition:!isCancel];
}];
}

- (nullable id <UIViewControllerAnimatedTransitioning>)animationControllerForDismissedController:(UIViewController *)dismissed {
return (id)[[DismissAnimation alloc]init];
  }

PushAnimation

動畫添加新的view,type和subType不同,動畫方式就不一樣。這里只寫一個不累贅

 +(void)pushView:(UIView *)View subView:(UIView *)subView AndAnimationType:(NSString *)type AndsubType:(NSString *)subType{  
CATransition *transition = [CATransition animation];
transition.duration = 1.0f;
transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
transition.type = type;
transition.subtype = subType;
[View.layer addAnimation:transition forKey:@"pushTransitionAnimation"];
[View addSubview:subView];
  }

PopAnimation

動畫移除新的view

 +(void)popView:(UIView *)View subView:(UIView *)subView AndAnimationType:(NSString *)type AndsubType:(NSString *)subType {
CATransition *transition = [CATransition animation];
transition.duration = 1.0f;
transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
transition.type = type;
transition.subtype = subType;
[View.superview.layer addAnimation:transition forKey:@"popTransitionAnimation"];
[subView removeFromSuperview];
 }

注:關(guān)于CATransition的type和subType的介紹,前兩篇博客已經(jīng)介紹過,看Animation_CATransition這篇。

ScaleViewAnimation

CGAffineTransform 主要用于形變,位移和旋轉(zhuǎn),可用于動畫展示

transform屬性介紹,這里介紹最常用和好用的,其他屬性去看CGAffineTransform
  • 位移X,Y

      CGAffineTransformMakeTranslation(CGFloat tx, CGFloat ty)
    
  • 伸縮X,Y

      CGAffineTransformMakeScale(CGFloat sx, CGFloat sy)
    
  • 旋轉(zhuǎn)M_PI

      CGAffineTransformMakeRotation(CGFloat angle)
    
  • 組合

      CGAffineTransformConcat(CGAffineTransform t1,CGAffineTransform t2)
    
  • 回到原位

      CGAffineTransformIdentity
    
動畫調(diào)用,包括動畫時間,動畫完成后回調(diào)
 -(void)scaleView:(UIView *)view CGFloatX:(CGFloat)x CGFloatY:(CGFloat)y CGFloatW:(CGFloat)w CGFloatH:(CGFloat)h{
CGFloat scaleW = self.window.frame.size.width / w;
CGFloat scaleH = self.window.frame.size.height / h;
CGFloat W = scaleW * 50 - 50 - x;
CGFloat H = scaleH * 50 - 50 - y;
[UIView animateWithDuration:1.0 animations:^{
    view.transform =CGAffineTransformConcat(CGAffineTransformMakeScale(scaleW, scaleH), CGAffineTransformMakeTranslation(W,H));
} completion:^(BOOL finished) {
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        view.transform = CGAffineTransformIdentity;
    });
  }];

}

Dome: github地址

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