POP-一個點擊帶有放大還原的動畫效果，pop-放大還原動畫

POP-一個點擊帶有放大還原的動畫效果，pop-放大還原動畫

原理

監聽螢幕的點擊事件

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event;

- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event;

- (void)touchesCancelled:(nullable NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event;

動畫

pop動畫，需要pop架構

兩個動畫一個放大，一個還原

kPOPViewScaleXY：放大寬高

代碼

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {    POPSpringAnimation *scaleAnimation = [POPSpringAnimation animation];    scaleAnimation.property = [POPAnimatableProperty propertyWithName:kPOPViewScaleXY];//寬高改變    scaleAnimation.toValue = [NSValue valueWithCGSize:CGSizeMake(1.3, 1.3)];//1.3倍    [self pop_addAnimation:scaleAnimation forKey:@"scaleAnimationKey"];//執行動畫    scaleAnimation.completionBlock = ^(POPAnimation *animation,BOOL finish) { //動畫回調        POPSpringAnimation *scaleAnimation = [POPSpringAnimation animation];        scaleAnimation.springBounciness = 16;    // value between 0-20        scaleAnimation.springSpeed = 14;     // value between 0-20        scaleAnimation.property = [POPAnimatableProperty propertyWithName:kPOPViewScaleXY];        scaleAnimation.toValue = [NSValue valueWithCGSize:CGSizeMake(1.0, 1.0)];        [self pop_addAnimation:scaleAnimation forKey:@"scaleAnimationKey"];    };}