CABasicAnimation来做心跳动画

Posted 2020-10-07 liuw_flexi

CABasicAnimation *anim = [CABasicAnimation animation];
    
    anim.keyPath = @"transform.scale";
    anim.toValue = @0.5;
    anim.repeatCount = MAXFLOAT;
    
    [_heartImageV.layer addAnimation:anim forKey:nil];