IOS 动画

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动画


从各个地方找来的,有三种:

第一种:
CGContextRef context = UIGraphicsGetCurrentContext();
[UIView beginAnimations:nil context:context];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationDuration:kDuration];//动画时间
[UIView setAnimationTransition:UIViewAnimationTransitionCurlDown forView:self.view cache:YES];//第一个参数:动画类型
NSUInteger green = [[self.view subviews] indexOfObject:self.greenView];
NSUInteger blue = [[self.view subviews] indexOfObject:self.blueView];
[self.view exchangeSubviewAtIndex:green withSubviewAtIndex:blue];
[UIView setAnimationDelegate:self];
 // 动画完毕后调用某个方法
 //[UIView setAnimationDidStopSelector:@selector(animationFinished:)];
[UIView commitAnimations];

第二种:
CATransition *animation = [CATransition animation];
animation.delegate = self;
animation.duration = kDuration;
animation.timingFunction = UIViewAnimationCurveEaseInOut;
animation.type = kCATransitionFade;//动画类型
animation.subtype = kCATransitionFromLeft;//动画方向
NSUInteger green = [[self.view subviews] indexOfObject:self.greenView];
NSUInteger blue = [[self.view subviews] indexOfObject:self.blueView];
[self.view exchangeSubviewAtIndex:green withSubviewAtIndex:blue];
[[self.view layer] addAnimation:animation forKey:@"animation"];

动画类型还有:

  1. 2.用字符串表示 
  2.      pageCurl            向上翻一页 
  3.      pageUnCurl          向下翻一页 
  4.      rippleEffect        滴水效果 
  5.      suckEffect          收缩效果,如一块布被抽走 
  6.      cube                立方体效果 
  7.      oglFlip             上下翻转效果  
  8.      cameraIrisHollowOpen  iphone相机打开效果
  9.      cameraIrisHollowOpen 关闭相机的效果
  10. */ 

第三种:
[UIView animateWithDuration:1 animations:^{
        [[self.view.subviews objectAtIndex:0] setAlpha:1];
        [[self.view.subviews objectAtIndex:1] setAlpha:0];
        NSUInteger green = [[self.view subviews] indexOfObject:self.greenView];
        NSUInteger blue = [[self.view subviews] indexOfObject:self.blueView];
        [self.view exchangeSubviewAtIndex:green withSubviewAtIndex:blue];
    }];

还有其他类型的调用方法,这个是最简单的,可以加上其他的参数进行一些操作。
第二个参数是一个代码快,来执行VIEW的属性改变,系统会将视图从当前状态平滑的过度到最终状态(就是你做修改之后的状态)。
可以被改变的属性有:
frame
bounds
center
transform //可以实现3D/2D效果
alpha
backgroundColor
contentStretch

比如 self.view.layer.transform = CATransform3DMakeRotation(1, -1, -1, 1); 可以在代码中将整个VIEW动画旋转(这里只是一个例子,有效果,但是不怎么好看)

上面是3D变化,如果是2d的,那么就应该修改view上的transform 

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