我如何在OSX上做这个iOS动画？ [英] How would I do this iOS animation on OSX?

问题描述

我在iOS中有一个非常简单的动画，淡化一个视图，调整一个容器以适应另一个视图，然后淡入其他视图。这是很容易做，很简单。

I have a very simple animation in iOS that fades a view, resizes a container to fit another view, then fades that other view back in. It's quite easy to do and very straightforward.

我一直在尝试在OSX上做一些这样的事情，但是我还没有找到怎么做。

I've been trying to do something pretty much exactly like this on OSX, but I haven't been able to figure out how to do it. The animation stuff on OSX feels so clunky and difficult compared to iOS.

任何帮助都会非常感激！

Any help would be much appreciated!!

谢谢！ ：）

// Fade out viewOne, resize frame to fit viewTwo, fade in viewTwo
[UIView animateWithDuration: 0.15
        animations: ^{
            [viewOne setAlpha:0.0];
        }
        completion: ^(BOOL finished) {
            [UIView animateWithDuration: 0.2
                    animations: ^{
                        [self setFrame: [viewTwo frame]];
                    }
                    completion: ^(BOOL finished) {
                        [viewTwo setAlpha: 0.0];
                        [self addSubview: viewTwo];
                        [UIView animateWithDuration: 0.15
                                animations: ^{
                                    [viewTwo setAlpha:1.0];
                                }];
                    }];
         }];

推荐答案

我写了一个小类，在OSX上使用animator代理时，基本上完成了与上面相同的事情。

I've written a small class that uses blocks to accomplish essentially the same thing as above when using the animator proxy on OSX.

请注意，这个类不是线程安全的，没有经历任何特定或压力测试。

Please note, this class is not thread safe and hasn't undergone any specific or stressful tests.

//Interface
@interface MZAnimator : NSObject{}

+ (void)animateWithDuration:(NSTimeInterval)duration 
                  animation:(void (^)(void))animationBlock;
+ (void)animateWithDuration:(NSTimeInterval)duration 
                  animation:(void (^)(void))animationBlock
                 completion:(void (^)(void))completionBlock;
@end


//Implementation
@interface MZAnimator ()
+ (void)runEndBlock:(void (^)(void))completionBlock;
@end

@implementation MZAnimator

+ (void)animateWithDuration:(NSTimeInterval)duration 
                  animation:(void (^)(void))animationBlock
{
  [self animateWithDuration:duration animation:animationBlock completion:nil];
}
+ (void)animateWithDuration:(NSTimeInterval)duration 
                  animation:(void (^)(void))animationBlock
                 completion:(void (^)(void))completionBlock
{
  [NSAnimationContext beginGrouping];
  [[NSAnimationContext currentContext] setDuration:duration];
  animationBlock();
  [NSAnimationContext endGrouping];

  if(completionBlock)
  {
    id completionBlockCopy = [[completionBlock copy] autorelease];
    [self performSelector:@selector(runEndBlock:) withObject:completionBlockCopy afterDelay:duration];
  }
}

+ (void)runEndBlock:(void (^)(void))completionBlock
{
  completionBlock();
}
@end

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