Xcode- iOS Animation RBBSpringAnimation

RBBSpringAnimation

RBBSpringAnimation 

spring's mass, damping, stiffness as well as its initial velocity and watch it go:

RBBSpringAnimation *spring = [RBBSpringAnimation animationWithKeyPath:@"position.y"];

spring.fromValue = @(-100.0f);
spring.toValue = @(100.0f);
spring.velocity = 0;
spring.mass = 1;
spring.damping = 10;
spring.stiffness = 100;

spring.additive = YES;
spring.duration = [spring durationForEpsilon:0.01];