CAReplicatorLayer *layer = [CAReplicatorLayer layer]; layer.frame = CGRectMake(50, 50, 200, 200); layer.backgroundColor = [UIColor lightGrayColor].CGColor; [self.view.layer addSublayer:layer];
CALayer *bar = [CALayer layer]; bar.backgroundColor = [UIColor redColor].CGColor; bar.bounds = CGRectMake(0, 0, 30, 100); bar.position = CGPointMake(15, 200); bar.anchorPoint = CGPointMake(0.5, 1); [layer addSublayer:bar]; CABasicAnimation *anim = [CABasicAnimation animation]; anim.keyPath = @"transform.scale.y"; anim.toValue = @(0.1); anim.autoreverses = YES; anim.repeatCount = MAXFLOAT; [bar addAnimation:anim forKey:nil];
// 设置4个子层,3个复制层 layer.instanceCount = 4; // 设置复制子层的相对位置,每个x轴相差40 layer.instanceTransform = CATransform3DMakeTranslation(40, 0, 0); // 设置复制子层的延迟动画时长 layer.instanceDelay = 0.3;
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