pop动画片段

从底部弹起来，及消失到底部

POPBasicAnimation

#import <pop/pop.h>- (void)viewDidLoad {    self.talkBar = [[UIView alloc] init];    [self.view addSubview:_talkBar];    [_talkBar mas_makeConstraints:^(MASConstraintMaker *make) {        make.centerX.mas_equalTo(wbSelf.view);        make.bottom.mas_equalTo(wbSelf.view).offset(50);        make.size.mas_equalTo(CGSizeMake(WIDTH,50));    }];- (void) popTalkBar{    POPBasicAnimation *anBasic = [POPBasicAnimation animationWithPropertyNamed:kPOPLayerPositionY];    anBasic.toValue = @(self.talkBar.center.y-100);    anBasic.beginTime = CACurrentMediaTime() + 0.2f;    [self.talkBar pop_addAnimation:anBasic forKey:@"position"];}- (void) disTalkBar{    POPBasicAnimation *anBasic = [POPBasicAnimation animationWithPropertyNamed:kPOPLayerPositionY];    anBasic.toValue = @(self.view.height+50);    anBasic.beginTime = CACurrentMediaTime() + 0.2f;    [self.talkBar pop_addAnimation:anBasic forKey:@"position"];}