#import#import "FKViewController.h"
@implementation FKViewController
CALayer *imageLayer;
- (void)viewDidLoad
{
[super viewDidLoad];
// 创建一个CALayer对象
imageLayer = [CALayer layer];
// 设置该CALayer的边框、大小、位置等属性
imageLayer.cornerRadius = 6;
imageLayer.borderWidth = 1;
imageLayer.borderColor = [UIColor blackColor].CGColor;
imageLayer.masksToBounds = YES;
imageLayer.frame = CGRectMake(30, 30, 100, 135);
// 设置该imageLayer显示的图片
imageLayer.contents = (id)[[UIImage imageNamed:@"android"] CGImage];
[self.view.layer addSublayer:imageLayer];
NSArray* bnTitleArray = [NSArray arrayWithObjects:@"位移"
, @"旋转" , @"缩放" , @"动画组" , nil];
// 获取屏幕的内部高度
CGFloat totalHeight = [UIScreen mainScreen].bounds.size.height;
NSMutableArray* bnArray = [[NSMutableArray alloc] init];
// 采用循环创建4个按钮
for(int i = 0 ; i < 4 ; i++)
{
UIButton* bn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
bn.frame = CGRectMake(5 + i * 80, totalHeight - 45 - 20 , 70 , 35);
[bn setTitle:[bnTitleArray objectAtIndex:i]
forState:UIControlStateNormal];
[bnArray addObject:bn];
[self.view addSubview:bn];
}
// 为4个按钮绑定不同的事件处理方法
[[bnArray objectAtIndex:0] addTarget:self action:@selector(move:)
forControlEvents:UIControlEventTouchUpInside];
[[bnArray objectAtIndex:1] addTarget:self action:@selector(rotate:)
forControlEvents:UIControlEventTouchUpInside];
[[bnArray objectAtIndex:2] addTarget:self action:@selector(scale:)
forControlEvents:UIControlEventTouchUpInside];
[[bnArray objectAtIndex:3] addTarget:self action:@selector(group:)
forControlEvents:UIControlEventTouchUpInside];
}
-(void) move:(id)sender
{
CGPoint fromPoint = imageLayer.position;
CGPoint toPoint = CGPointMake(fromPoint.x + 80 , fromPoint.y);
// 创建不断改变CALayer的position属性的属性动画
CABasicAnimation* anim = [CABasicAnimation
animationWithKeyPath:@"position"];
// 设置动画开始的属性值
anim.fromValue = [NSValue valueWithCGPoint:fromPoint];
// 设置动画结束的属性值
anim.toValue = [NSValue valueWithCGPoint:toPoint];
anim.duration = 0.5;
imageLayer.position = toPoint;
anim.removedOnCompletion = YES;
// 为imageLayer添加动画
[imageLayer addAnimation:anim forKey:nil];
}
-(void) rotate:(id)sender
{
// 创建不断改变CALayer的transform属性的属性动画
CABasicAnimation* anim = [CABasicAnimation animationWithKeyPath:@"transform"];
CATransform3D fromValue = imageLayer.transform;
// 设置动画开始的属性值
anim.fromValue = [NSValue valueWithCATransform3D:fromValue];
// 绕X轴旋转180度
CATransform3D toValue = CATransform3DRotate(fromValue, M_PI , 1 , 0 , 0);
// 绕Y轴旋转180度
// CATransform3D toValue = CATransform3DRotate(fromValue, M_PI , 0 , 1 , 0);
// // 绕Z轴旋转180度
// CATransform3D toValue = CATransform3DRotate(fromValue, M_PI , 0 , 0 , 1);
// 设置动画结束的属性值
anim.toValue = [NSValue valueWithCATransform3D:toValue];
anim.duration = 0.5;
imageLayer.transform = toValue;
anim.removedOnCompletion = YES;
// 为imageLayer添加动画
[imageLayer addAnimation:anim forKey:nil];
}
-(void) scale:(id)sender
{
// 创建不断改变CALayer的transform属性的属性动画
CAKeyframeAnimation* anim = [CAKeyframeAnimation
animationWithKeyPath:@"transform"];
// 设置CAKeyframeAnimation控制transform属性依次经过的属性值
anim.values = [NSArray arrayWithObjects:
[NSValue valueWithCATransform3D:imageLayer.transform],
[NSValue valueWithCATransform3D:CATransform3DScale
(imageLayer.transform , 0.2, 0.2, 1)],
[NSValue valueWithCATransform3D:CATransform3DScale
(imageLayer.transform, 2, 2 , 1)],
[NSValue valueWithCATransform3D:imageLayer.transform], nil];
anim.duration = 5;
anim.removedOnCompletion = YES;
// 为imageLayer添加动画
[imageLayer addAnimation:anim forKey:nil];
}
-(void) group:(id)sender
{
CGPoint fromPoint = imageLayer.position;
CGPoint toPoint = CGPointMake(280 , fromPoint.y + 300);
// 创建不断改变CALayer的position属性的属性动画
CABasicAnimation* moveAnim = [CABasicAnimation
animationWithKeyPath:@"position"];
// 设置动画开始的属性值
moveAnim.fromValue = [NSValue valueWithCGPoint:fromPoint];
// 设置动画结束的属性值
moveAnim.toValue = [NSValue valueWithCGPoint:toPoint];
moveAnim.removedOnCompletion = YES;
// 创建不断改变CALayer的transform属性的属性动画
CABasicAnimation* transformAnim = [CABasicAnimation
animationWithKeyPath:@"transform"];
CATransform3D fromValue = imageLayer.transform;
// 设置动画开始的属性值
transformAnim.fromValue = [NSValue valueWithCATransform3D: fromValue];
// 创建缩放为X、Y两个方向上缩放为0.5的变换矩阵
CATransform3D scaleValue = CATransform3DScale(fromValue , 0.5 , 0.5, 1);
// 绕Z轴旋转180度的变换矩阵
CATransform3D rotateValue = CATransform3DRotate(fromValue, M_PI , 0 , 0 , 1);
// 计算两个变换矩阵的和
CATransform3D toValue = CATransform3DConcat(scaleValue, rotateValue);
// 设置动画技术的属性值
transformAnim.toValue = [NSValue valueWithCATransform3D:toValue];
// 动画效果累加
transformAnim.cumulative = YES;
// 动画重复执行2次，旋转360度
transformAnim.repeatCount = 2;
transformAnim.duration = 3;
// 位移、缩放、旋转组合起来执行
CAAnimationGroup *animGroup = [CAAnimationGroup animation];
animGroup.animations = [NSArray arrayWithObjects:moveAnim
, transformAnim , nil];
animGroup.duration = 6;
// 为imageLayer添加动画
[imageLayer addAnimation:animGroup forKey:nil];
}
@end
