@interface MJViewController ()
@property (nonatomic, strong) CALayer *layer;
@end
@implementation MJViewController
- (void)viewDidLoad
{
[super viewDidLoad];
CALayer *layer = [CALayer layer];
layer.position = CGPointMake(100, 100);
layer.bounds = CGRectMake(0, 0, 100, 100);
layer.backgroundColor = [UIColor redColor].CGColor;
[self.view.layer addSublayer:layer];
self.layer = layer;
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
[self testTranslate];
}
- (void)testTransform
{
// 1.创建动画对象
CABasicAnimation *anim = [CABasicAnimation animation];
// 2.设置动画对象
// keyPath决定了执行怎样的动画, 调整哪个属性来执行动画
// anim.keyPath = @"transform.rotation";
// anim.keyPath = @"transform.scale.x";
anim.keyPath = @"transform.translation.x";
anim.toValue = @(100);
// anim.toValue = [NSValue valueWithCGPoint:CGPointMake(100, 100)];
anim.duration = 2.0;
anim.removedOnCompletion = NO;
anim.fillMode = kCAFillModeForwards;
// 3.添加动画
[self.layer addAnimation:anim forKey:nil];
}
//旋转的动画
- (void)testRotate
{
// 1.创建动画对象
CABasicAnimation *anim = [CABasicAnimation animation];
// 2.设置动画对象
// keyPath决定了执行怎样的动画, 调整哪个属性来执行动画
anim.keyPath = @"transform";
// anim.fromValue = [NSValue valueWithCGPoint:CGPointMake(0, 0)];
anim.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeRotation(M_PI, 1, -1, 0)];
anim.duration = 2.0;
anim.removedOnCompletion = NO;
anim.fillMode = kCAFillModeForwards;
// 3.添加动画
[self.layer addAnimation:anim forKey:nil];
}
//缩放的动画
- (void)testScale
{
// 1.创建动画对象
CABasicAnimation *anim = [CABasicAnimation animation];
// 2.设置动画对象
// keyPath决定了执行怎样的动画, 调整哪个属性来执行动画
anim.keyPath = @"bounds";
// anim.fromValue = [NSValue valueWithCGPoint:CGPointMake(0, 0)];
anim.toValue = [NSValue valueWithCGRect:CGRectMake(0, 0, 200, 200)];
anim.duration = 2.0;
/**让图层保持动画执行完毕后的状态**/
// 动画执行完毕后不要删除动画
anim.removedOnCompletion = NO;
// 保持最新的状态
anim.fillMode = kCAFillModeForwards;
// 3.添加动画
[self.layer addAnimation:anim forKey:nil];
}
//平移动画，表示图层位置的变换
- (void)testTranslate
{
// 1.创建动画对象
CABasicAnimation *anim = [CABasicAnimation animation];
// 2.设置动画对象
// keyPath决定了执行怎样的动画, 调整哪个属性来执行动画
anim.keyPath = @"position";
// anim.fromValue = [NSValue valueWithCGPoint:CGPointMake(0, 0)];
// toValue : 最终变成什么值
// byValue : 增加多少值
anim.byValue = [NSValue valueWithCGPoint:CGPointMake(200, 300)];
anim.duration = 2.0;
/**让图层保持动画执行完毕后的状态**/
// 动画执行完毕后不要删除动画
anim.removedOnCompletion = NO;
// 保持最新的状态
anim.fillMode = kCAFillModeForwards;
// 3.添加动画
[self.layer addAnimation:anim forKey:nil];
}