我正在尝试使用顶部的滑动动画替换另一个视图。我有点遵循http://gentlebytes.com/2011/09/auto-layout-in-lion/中发布的指南,但没有NSConstraints。
不幸的是,在动画结束时没有调用我的动画的委托方法animationDidStop:finished:
这是我的代码:
- (void)slideViewControllerFromTop:(NSViewController *)controller {
[self replacePlaceholderViewWith:controller block:^(NSView *placeholder, NSView *currentView, NSView *newView) {
NSRect initialFrameNewView = NSMakeRect(placeholder.bounds.origin.x, 2*placeholder.bounds.size.height - newView.frame.size.height - DISTANCE_FROM_TOP, placeholder.bounds.size.width, newView.frame.size.height);
[newView setFrame:initialFrameNewView];
NSRect finalFrameNewView = NSMakeRect(placeholder.bounds.origin.x, placeholder.bounds.size.height - newView.frame.size.height - DISTANCE_FROM_TOP, 0.91*placeholder.bounds.size.width, newView.frame.size.height);
NSRect finalFrameCurrentView = NSMakeRect(currentView.frame.origin.x, currentView.frame.origin.y-placeholder.bounds.size.height, currentView.frame.size.width, currentView.frame.size.height);
CABasicAnimation *animation = [CABasicAnimation animation];
animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
[animation setDelegate:self];
[animation setDuration:0.5];
animation.removedOnCompletion = YES;
[newView setAnimations:[NSDictionary dictionaryWithObject:animation forKey:@"frame"]];
[currentView setAnimations:[NSDictionary dictionaryWithObject:animation forKey:@"frame"]];
[placeholder addSubview:newView];
[NSAnimationContext beginGrouping];
[[newView animator] setFrame:finalFrameNewView];
[[currentView animator] setFrame:finalFrameCurrentView];
[NSAnimationContext endGrouping];
}];
}
- (void)replacePlaceholderViewWith:(NSViewController *)controller block:(GBPlaceholderReplaceBlock)handler {
if (controller == self.currentViewController) return;
self.previousViewController = self.currentViewController;
self.currentViewController = controller;
NSView *placeholderView = self.contentView;
NSView *currentView = self.contentView.subviews.lastObject;
NSView *newView = self.currentViewController.view;
handler(placeholderView, currentView, newView);
}
- (void)animationDidStop:(CABasicAnimation *)anim finished:(BOOL)flag {
if (!flag || self.contentView.subviews.count < 2) return;
[[self.contentView.subviews objectAtIndex:0] removeFromSuperview];
self.previousViewController = nil;
}
答案 0 :(得分:1)
尝试替换这两个
[newView setAnimations:[NSDictionary dictionaryWithObject:animation forKey:@"frame"]];
[currentView setAnimations:[NSDictionary dictionaryWithObject:animation forKey:@"frame"]];
到
[newView.layer addAnimation:animation forKey:@"frame"];
[currentView.layer addAnimation:animation forKey:@"frame"];
不要忘记在课程文件的顶部添加#import <QuartzCore/QuartzCore.h>
。