How to animate the CABasicAnimation in background after the home button is pressed?

Question

I'm new in ios development. I'm using wheel images in my project.The animation is working fine in foreground mode. After that I pressed the home button.now i relaunch the app the wheel animation is not working. this is my code:

CABasicAnimation* animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"]; animation.fromValue = [NSNumber numberWithFloat:0.0f];
animation.toValue = [NSNumber numberWithFloat: 2*M_PI];
animation.duration = 1.0f;
animation.repeatCount = INFINITY;
[imageLeft.layer addAnimation:animation forKey:@"SpinAnimation"];

Answer 1

Swift 4.2 Updated

Ah I figured it out - use this and all the cases like stopping after going into the background will be fixed.

animation.isRemovedOnCompletion = false