CABasicAnimation的使用方法（移动，旋转，缩放）

设定动画CABasicAnimation的属性和说明

属性	说明
duration	动画的时间
repeatCount	重复的次数。不停重复设置为 HUGE_VALF
repeatDuration	设置动画的时间。
beginTime	指定动画开始的时间。从开始延迟几秒的话，设置为【CACurrentMediaTime() + 秒数】的方式
timingFunction	设置动画的速度变化
autoreverses	动画结束时是否执行逆动画
fromValue	所改变属性的起始值
toValue	所改变属性的结束时的值
byValue	所改变属性相同起始值的改变量

动画结束后停在最后位置状态的解决方法

用CABasicAnimation执行动画，在动画结束后会回归动画开始前的状态。想要解决的话，必须设置“removedOnCompletion”和“fillMode”这两个属性

animation.removedOnCompletion = NO;

animation.fillMode = kCAFillModeForwards;

1.移动动画

CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"position"];

animation.duration = 2;

animation.repeatCount = 2;

animation.beginTime =CACurrentMediaTime() + 1;// 1秒后执行

animation.fromValue = [NSValue valueWithCGPoint:myView.layer.position]; // 起始帧

animation.toValue = [NSValue valueWithCGPoint:CGPointMake(300, 300)]; // 终了帧

// 视图添加动画

[View.layer addAnimation:animation forKey:@"move-layer"];

2.旋转动画

// 对Y轴进行旋转（指定Z轴的话，就和UIView的动画一样绕中心旋转）

CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.y"];

animation.duration = 2;

animation.repeatCount = 2;

animation.beginTime = CACurrentMediaTime() + 1; // 1秒后执行

animation.fromValue = [NSNumber numberWithFloat:0.0]; // 起始角度

animation.toValue = [NSNumber numberWithFloat:M_PI]; // 终止角度

[View.layer addAnimation:animation forKey:@"rotate-layer"];

3.缩放动画

CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];

animation.duration = 2.5; // 动画持续时间

animation.repeatCount = 1; // 重复次数

animation.fromValue = [NSNumber numberWithFloat:1.0]; // 开始时的倍率

animation.toValue = [NSNumber numberWithFloat:2.0]; // 结束时的倍率

[myView.layer addAnimation:animation forKey:@"scale-layer"];

4.渐隐动画

//opacity 指layer的透明度

CABasicAnimation *basicAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];

basicAnimation.fromValue = @(1.0);

basicAnimation.toValue = @(0.0);//[NSNumber numberWithFloat:0.0]

basicAnimation.duration = 1.5;

[self.myView.layer addAnimation:basicAnimation forKey:@"op"];

5.组合动画

CABasicAnimation *animation1 =[CABasicAnimation animationWithKeyPath:@"transform.translation.x"];

animation1.toValue = [NSNumber numberWithFloat:80];; // 終点

CABasicAnimation *animation1 =[CABasicAnimation animationWithKeyPath:@"transform.translation.z"];

animation2.fromValue = [NSNumber numberWithFloat:0.0]; // 开始时的角度

animation2.toValue = [NSNumber numberWithFloat:M_PI]; // 结束时的角度

/* 动画组 */

CAAnimationGroup *group = [CAAnimationGroup animation];

group.duration = 1.0;

group.repeatCount = 1;

group.animations = [NSArray arrayWithObjects:animation1, animation2, nil nil];

[myView.layer addAnimation:group forKey:@"move-rotate-layer"];

6.捕获动画开始时和终了时的事件

- (void)animationDidStart:(CAAnimation *)theAnimation {

}

- (void)animationDidStop:(CAAnimation *)theAnimation finished:(BOOL)flag {

}

参考博客：http://blog.csdn.net/iosevanhuang/article/details/14488239