ios - Running multiple CAKeyframeAnimations at the same time -

ios - Running multiple CAKeyframeAnimations at the same time -

so have 2 cakeyframeanimations on different layers , want them run simultaneously.

previously tried running them using dispatch_async. didn't worked , animation still running in sequence.

after bit of search found must utilize catransaction run animations simultaneously. still running in sequence.what doing wrong here.

[catransaction begin]; self.btn1.frame = bezierpathpoint; cakeyframeanimation* keyframeanimation = [cakeyframeanimation animationwithkeypath:@"position"]; keyframeanimation.duration = 1.5; keyframeanimation.path = [bezierpath cgpath]; keyframeanimation.timingfunction = [camediatimingfunction functionwithname:kcamediatimingfunctioneaseout]; [self.btn1.layer addanimation:keyframeanimation forkey:@"position"]; self.btn3.frame = bezierpathpoint2; cakeyframeanimation* keyframeanimation2 = [cakeyframeanimation animationwithkeypath:@"position"]; keyframeanimation.duration = 1.5; keyframeanimation.path = [bezierpath cgpath]; keyframeanimation.timingfunction = [camediatimingfunction functionwithname:kcamediatimingfunctioneaseout]; [self.btn3.layer addanimation:keyframeanimation2 forkey:@"position"]; [catransaction commit];

ios objective-c core-animation cakeyframeanimation catransaction