1 // 将视图作为属性方便后面执行多个不同动画
2 _myView = [[UIView alloc] init];
3 _myView.layer.position = CGPointMake(100, 100);
4 _myView.layer.bounds = CGRectMake(0, 0, 100, 100);
5 _myView.backgroundColor = [UIColor blueColor];
6 [self.view addSubview:_myView];
7 [_myView release];

 1 // 创建一个CABasicAnimation类型的动画对象并对CALayer的position属性执行动画
 2 CABasicAnimation *anim = [CABasicAnimation animationWithKeyPath:@"position"];
 3
 4 // 动画持续1.5s
 5 anim.duration = 1.5;
 6
 7 // position属性值从(50, 80)渐变到(300, 350)
 8 anim.fromValue = [NSValue valueWithCGPoint:CGPointMake(50, 80)];
 9 anim.toValue = [NSValue valueWithCGPoint:CGPointMake(300, 350)];
10
11 // 设置动画的代理
12 anim.delegate = self;
13
14 // 保持动画执行后的状态
15 anim.removedOnCompletion = NO;
16 anim.fillMode = kCAFillModeForwards;
17
18 // 添加动画对象到myView的图层上
19 [_myView.layer addAnimation:anim forKey:@"translate"];

 1 #pragma mark -----动画开始-----
 2 - (void)animationDidStart:(CAAnimation *)anim {
 3 NSLog(@"动画开始了");
 4 }
 5
 6 #pragma mark -----动画结束-----
 7 - (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag {
 8 // 查看一下动画执行完毕后的position值
 9 NSString *string = NSStringFromCGPoint(_myView.layer.position);
10 NSLog(@"动画结束了，position:%@", string);
11 }

1 // 移除动画
2 [_myView.layer removeAnimationForKey:@"translate"]

1 CABasicAnimation *anim = [CABasicAnimation animationWithKeyPath:@"transform"];
2 anim.duration = 1;
3
4 CATransform3D form = CATransform3DMakeTranslation(350, 350, 0);
5 anim.toValue = [NSValue valueWithCATransform3D:form];
6
7 [_myView.layer addAnimation:anim forKey:nil];

1 CABasicAnimation *anim = [CABasicAnimation animationWithKeyPath:@"bounds"];
2 anim.duration = 2;
3
4 anim.toValue = [NSValue valueWithCGRect:CGRectMake(0, 0, 30, 30)];
5
6 [_myView.layer addAnimation:anim forKey:nil];

 1 CABasicAnimation *anim = [CABasicAnimation
 2 animationWithKeyPath:@"transform"];
 3 anim.duration = 1.5; // 动画持续1.5s
 4
 5 // CALayer的宽度从0.5倍变为2倍
 6 // CALayer的高度从0.5倍变为1.5倍
 7 anim.fromValue = [NSValue valueWithCATransform3D:CATransform3DMakeScale(0.5, 0.5, 1)];
 8 anim.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeScale(2, 1.5, 1)];
 9
10 [_myView.layer addAnimation:anim forKey:nil];

1 CABasicAnimation *anim = [CABasicAnimation animationWithKeyPath:@"transform"];
2 anim.duration = 1.5;
3
4 // 绕着(1, 1, 0)这个向量轴顺时针旋转45°
5 anim.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeRotation(M_PI_4, 1, 1, 0)];
6
7 [_myView.layer addAnimation:anim forKey:nil];