带有动画效果的tabbar

在点击时间里增加动画，根据button获取view，写view的transform

/**

 *  监听按钮点击

 */

- (void)buttonClick:(LYTabBarButton *)button

{

    // 1.通知代理

    if ([self.delegate respondsToSelector:@selector(tabBar:didSelectedButtonFrom:to:)]) {

        [self.delegate tabBar:self didSelectedButtonFrom:self.selectedButton.tag to:button.tag];

    }

    // 2.设置按钮的状态

    self.selectedButton.selected = NO;

    button.selected = YES;

    self.selectedButton = button;

    [self imgAnimate:button];

}

//绑定动画

- (void)imgAnimate:(UIButton*)btn{

    UIView *view=btn.subviews[0];

    [UIView animateWithDuration:0.1 animations:

     ^(void){

         view.transform = CGAffineTransformScale(CGAffineTransformIdentity,0.8, 0.8);

     } completion:^(BOOL finished){//do other thing

         [UIView animateWithDuration:0.2 animations:

          ^(void){

              view.transform = CGAffineTransformScale(CGAffineTransformIdentity,1.1, 1.1);

          } completion:^(BOOL finished){//do other thing

              [UIView animateWithDuration:0.1 animations:

               ^(void){

                   view.transform = CGAffineTransformScale(CGAffineTransformIdentity,1,1);

               } completion:^(BOOL finished){//do other thing

               }];

          }];

     }];

}