pop動畫片段

從底部彈起來，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"];
}