POP scaling animation and pop Scaling

POP scaling animation and pop Scaling

POP scaling Animation

 

Effect

 

Source code

Https://github.com/YouXianMing/Animations

/// SpringScaleViewController. m // Animations // Created by YouXianMing on 16/6/3. // Copyright©2016 YouXianMing. all rights reserved. // # import "SpringScaleViewController. h "# import" UIView + SetRect. h "# import" UIFont + Fonts. h "# import" GCD. h "# import" POP. h "@ interface SpringScaleViewController () @ property (nonatomic, strong) UIView * scaleView; @ end @ implementation SpringScaleViewController-(void) setup {[super setup]; // Label UILabel * label = [[UILabel alloc] init]; label. text = @ "P"; label. font = [UIFont HYQiHeiWithFontSize: 140]; [label sizeToFit]; label. center = self. contentView. middlePoint; [self. contentView addSubview: label]; // Circle self. scaleView = [[UIView alloc] initWithFrame: CGRectMake (0, 0,100,100)]; self. scaleView. backgroundColor = [[UIColor colorWithRed: 0.203 green: 0.598 blue: 0.859 alpha: 1] colorWithAlphaComponent: 0.95f]; self. scaleView. layer. cornerRadius = self. scaleView. width/2.f; self. scaleView. center = self. contentView. middlePoint; [self. contentView addSubview: self. scaleView]; // Start animation after 1 second. [GCDQueue executeInMainQueue: ^ {[self scaleAnimation];} afterDelaySecs: 1.f];}-(void) scaleAnimation {Region * scaleAnimation = [region Region region: region]; scaleAnimation. name = @ "scaleSmallAnimation"; scaleAnimation. delegate = self; scaleAnimation. duration = 0.15f; scaleAnimation. toValue = [NSValue valueWithCGPoint: CGPointMake (1.25, 1.25)]; \ [self. scaleView pop_addAnimation: scaleAnimation forKey: nil];}-(void) pop_animationDidStop :( POPAnimation *) anim finished :( BOOL) finished {if ([anim. name isEqualToString: @ "scaleSmallAnimation"]) {POPSpringAnimation * scaleAnimation = [POPSpringAnimation animationWithPropertyNamed: kPOPViewScaleXY]; scaleAnimation. name = @ "SpringAnimation"; scaleAnimation. delegate = self; scaleAnimation. toValue = [NSValue valueWithCGPoint: CGPointMake (1, 1)]; scaleAnimation. velocity = [NSValue valueWithCGPoint: CGPointMake (-2,-2)]; scaleAnimation. springBounciness = 20.f; scaleAnimation. springSpeed = 10.f; scaleAnimation. dynamicsTension = 700.f; scaleAnimation. dynamicsFriction = 7.f; scaleAnimation. dynamicsMass = 3.f; [self. scaleView pop_addAnimation: scaleAnimation forKey: nil];} else if ([anim. name isEqualToString: @ "SpringAnimation"]) {[self defined mselector: @ selector (scaleAnimation) withObject: nil afterDelay: 1] ;}- (void) viewWillDisappear :( BOOL) animated {[super viewWillDisappear: animated]; [[self class] cancelPreviousPerformRequestsWithTarget: self];} @ end

 

Details

1. For more information about parameter settings, see the following figure (POPSpringParameterController in the project ):

2. the animation effect comes from the combination of two animations. Pay attention to setting the Proxy: