尝试这样的事情:animeView
你的 UIView在哪里
CABasicAnimation *anim1 = [CABasicAnimation animationWithKeyPath:@"cornerRadius"];
anim1.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
anim1.fromValue = [NSNumber numberWithFloat:0.0f];
anim1.toValue = [NSNumber numberWithFloat:50.0f]; //Half the size of your UIView
anim1.duration = 2.0;
[animeView.layer addAnimation:anim1 forKey:@"cornerRadius"];
[UIView animateWithDuration:10.0 delay:2 options:UIViewAnimationOptionCurveEaseInOut animations:^{
animeView.layer.cornerRadius = 50; //Half the size of your UIView
CGRect reduceRect = animeView.frame;
reduceRect.size.height = 0;
reduceRect.size.width = 0;
[animeView setFrame:reduceRect];
animeView.alpha = 0;
} completion:nil];
可能需要在这里和那里进行一些调整;-)
编辑1:
好的,那么使用两个怎么样UIView animations
?第一会shrink
,strech
和move
你的看法。第二个会shrink
,slink
和remove
你的看法。
[UIView animateWithDuration:2.0 delay:0.5 options:UIViewAnimationOptionCurveEaseIn animations:^{
CGRect moveRect = animeView.frame;
moveRect.origin.x = 0;
moveRect.origin.y = (animeView.center.y -20); //Half the size of height reduction
moveRect.size.height = (animeView.bounds.size.height -40); // height reduction
moveRect.size.width = (animeView.bounds.size.width +20);
[animeView setFrame:moveRect];
} completion:^(BOOL finished){
[UIView animateWithDuration:2.0 delay:0 options:UIViewAnimationOptionCurveEaseIn animations:^{
CGRect reduceRect = animeView.frame;
reduceRect.size.height = 0;
reduceRect.size.width = 0;
reduceRect.origin.x = -50;
reduceRect.origin.y = animeView.center.y;
animeView.alpha = 0;
[animeView setFrame:reduceRect];
} completion:nil];
}];
编辑2:
在评论中回答您的问题:
您可以通过创建一个同时执行动画CAAnimationGroup
。另外我正在使用图像来创建resize of content
效果。例子:
//Create a screenshot of your UIView... Still animeView in this example
UIGraphicsBeginImageContext(animeView.bounds.size);
CGContextRef context = UIGraphicsGetCurrentContext();
[animeView.layer renderInContext:context];
UIImage *screenShot = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
//Add the image as subview:
UIImageView * imageView = [[UIImageView alloc] initWithImage:screenShot];
[animeView addSubview:imageView];
//A cornerRadius animation:
CABasicAnimation *radiusAni = [CABasicAnimation animationWithKeyPath:@"cornerRadius"];
radiusAni.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
radiusAni.fromValue = [NSNumber numberWithFloat:0.0f];
radiusAni.toValue = [NSNumber numberWithFloat:50.0f];
//A stretch animation:
CABasicAnimation *stretchAni = [CABasicAnimation animationWithKeyPath:@"transform.scale.x"];
stretchAni.fromValue = [NSNumber numberWithDouble:1];
stretchAni.toValue = [NSNumber numberWithDouble:(animeView.frame.size.width+100)/animeView.frame.size.width];
//A slide animation:
CABasicAnimation *slideAni = [CABasicAnimation animationWithKeyPath:@"transform.translation.x"];
slideAni.fromValue = [NSNumber numberWithDouble:0];
slideAni.toValue = [NSNumber numberWithDouble:-100];
//A opacity animation:
CABasicAnimation *opacityAni = [CABasicAnimation animationWithKeyPath:@"opacity"];
opacityAni.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
opacityAni.fromValue = [NSNumber numberWithFloat:1];
opacityAni.toValue = [NSNumber numberWithFloat:0];
//The animationgroup
CAAnimationGroup *animGroup = [CAAnimationGroup animation];
//Add them to the group:
[animGroup setAnimations:[NSArray arrayWithObjects:radiusAni, opacityAni, slideAni, stretchAni, nil]];
//Set the properties:
[animGroup setDuration:3.0];
[animGroup setRemovedOnCompletion:NO];
[animGroup setFillMode:kCAFillModeForwards];
//Execute all the animations in the group:
[animeView.layer addAnimation:animGroup forKey:nil];
然后,您将同时执行 4 个动画,并在拉伸、收缩或您计划做的任何事情时调整内容的大小;-)