动画2

@interface secondViewController ()

@property (nonatomic,strong) UIView *redView;
@property (nonatomic,strong) UIView *greenView;
@end

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor whiteColor];
    self.navigationItem.title = @"View动画";
    [self.view addSubview:self.greenView];
    [self.view addSubview:self.redView];

#button 的点击方法
    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
    [button setFrame:CGRectMake(200,400, 100, 50)];
    [button setTitle:@"动画" forState: UIControlStateNormal];
    [button addTarget:self action:@selector(groupAnimation) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:button];

}

[.m]文件夹下

basicAnimation的学习

#pragma mark----basicAnimation的学习
- (CABasicAnimation *)basicAnimation{
    //keyPath:填写动画效果所需要改变的属性名称;
    CABasicAnimation *basic = [CABasicAnimation animationWithKeyPath:@"transform.rotation.y"];//transform.scale整体缩放.
    
    //在动画结束之后是否移除动画效果.
//    basic.removedOnCompletion = NO;
    //动画结束之后的状态设置
//    basic.fillMode = kCAFillModeForwards;
    //动画时长.
//    basic.duration = 0.2;
    //动画重复次数.
//    basic.repeatCount = MAXFLOAT;
    //动画是否反转
//    basic.autoreverses = YES;
    //是原来的二倍;
    basic.byValue = @(M_PI_2 * 6.0);
    //把 layer 层所有的动画都删掉
//    [self.greenView.layer removeAllAnimations];
//    [self.greenView.layer removeAnimationForKey:@"basic"];
//    basic.fromValue = [NSNumber numberWithFloat:0.0];
//    basic.toValue = [NSNumber numberWithFloat:6.0 * M_PI_2];
    
//    CABasicAnimation *basic1 = [CABasicAnimation animationWithKeyPath:@"transform.translation.x"];
//    basic1.removedOnCompletion = NO;
//    basic1.fillMode = kCAFillModeForwards;
//    basic1.duration = 0.8;
//    basic1.repeatCount = MAXFLOAT;
//    basic1.autoreverses = YES;
//    basic1.byValue = @(100);
    
    return basic;//在组合动画使用时,要将 return 写在 layer 的上方,以防止在操作时与组合动画出现重复操作

    //将动画添加到 layer层.
    //第一个参数;需要作用到 layer 层的动画. forkey 动画标记.删除动画的时候,可以根据标记删除.
    [self.greenView.layer addAnimation:basic forKey:@"basic"];
    [self.greenView.layer addAnimation:basic1 forKey:@"basic1"];
    [self.redView.layer addAnimation:basic forKey:@"basic"];
    [self.redView.layer addAnimation:basic1 forKey:@"basic1"];
   // return basic;
}

帧动画

#pragma mark-----帧动画
- (CAKeyframeAnimation*)keyFromAnimation{
    //position layer的信息位置,类似于 view 的 center 点.
    CAKeyframeAnimation *keyFrame = [CAKeyframeAnimation animationWithKeyPath:@"position"];
    //layer 最终的position值
    float position_x = self.greenView.layer.position.x;
    float position_y = self.greenView.layer.position.y;
    //想做晃动的偏移量;
    NSValue *leftValue = [NSValue valueWithCGPoint: CGPointMake(position_x - 50, position_y)];
    
    //layer的原始位置
    NSValue *originValue = [NSValue valueWithCGPoint:CGPointMake(position_x, position_y)];
    //layer 向右晃动的位置
    NSValue *rightVaue = [NSValue valueWithCGPoint:CGPointMake(position_x + 50, position_y)];
    //添加每一帧的 value值
    [keyFrame setValues:@[originValue,leftValue,originValue,rightVaue,originValue]];
//    keyFrame.repeatCount = 20;
//    keyFrame.repeatDuration = 3.0;
    return keyFrame;
    //为layer 层添加动画
//    [self.greenView.layer addAnimation:keyFrame forKey:@"aaa"];
    
}

组合动画

#pragma mark----组合动画
- (void)groupAnimation{
    //初始化动画
    CAAnimationGroup *animationGroup = [CAAnimationGroup animation];
    //basic
    CABasicAnimation *basic = [self basicAnimation];
    CAKeyframeAnimation *keyFrame = [self keyFromAnimation];
    //将得到的动画放入 group 中
    animationGroup.animations = @[basic,keyFrame];
//    animationGroup.repeatCount = 1000;
    animationGroup.repeatDuration = MAXFLOAT;
    
    
    //将 group 加到 layer 上.
    [self.greenView.layer addAnimation:animationGroup forKey:@"group"];
    
}