相关疑难解决方法(0)

所以我试图用UIView做一个缩小/成长的圈子.我正在使用UIView.animateWithDuration ...(blah blah blah)用于视图的框架,而CABasicAnimation用于为视图的(图层)角半径设置动画.两个动画正确的持续时间和结束在正确的,圆形的值(转角半径= 1/2宽度).问题是在动画期间,CABasicAnimation和UIView.animateWithDuration似乎有不同的动画曲线.如何实现正确的圆形动画.

如果答案是对农场膨胀使用CABAsicAnimation,请解释如何做到这一点.

谢谢!

码:

此代码是UIView的扩展.

//This is how it's being used to shrink the circle:

circleview.growByPixles(-10, seconds: 0.3, completion: {})
circleview.setCornerRadius(radius:(circleview.bounds.size.width - 10) / 2 seconds: 0.3)

//////

func morphToFrame(frame: CGRect, seconds: Double, completion: () -> ()) {
    UIView.animateWithDuration(seconds,
        animations: {
            self.frame = frame
        },
        completion: { _ in
            completion()
        })
}

//negative integers shrink
func growByPixels(pixels: CGFloat, seconds: Double, completion: () -> ()) {
    var f:CGRect = self.frame

    var newFrame:CGRect = …

我正在尝试移动两个视图的帧的简单动画.基本上隐藏广告直到加载,然后从底部向上移动框架,以及从底部开始的视图,然后在广告向上推动时向上移动.开始和结束位置都是正确的,但我不认为它是动画的.它是否正确？谢谢.

CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:@"frame"];
    animation.duration = 1.0;

    CGRect adFrame = CGRectMake(self.adBanner.frame.origin.x, self.adBanner.frame.origin.y - self.adBanner.frame.size.height, self.adBanner.frame.size.width, self.adBanner.frame.size.height);
    self.adBanner.frame = adFrame;
    [self.adBanner.layer addAnimation:animation forKey:@"frame"];

    CGRect buttonViewFrame = CGRectMake(self.ButtonView.frame.origin.x, self.adBanner.frame.origin.y - self.adBanner.frame.size.height, self.ButtonView.frame.size.width, self.ButtonView.frame.size.height);
    self.ButtonView.frame = buttonViewFrame;
    [self.ButtonView.layer addAnimation:animation forKey:@"frame"];