mTabbar.setCustomAnimate(new Animatable() {
                /**
                 * 这个方法当你点击Tab切换页面的时候会调用
                 * @param target TabBar里面的IconView
                 * @param Duration 是你自定义的动画时间
                 */
                @Override
                public void playAnimate(View target, int Duration) {
                    ViewHelper.setPivotX(target,target.getLayoutParams().width/2);
                    ViewHelper.setPivotY(target,target.getLayoutParams().height/2);
    
                    AnimatorSet set = new AnimatorSet();
                    set.playTogether(
                            ObjectAnimator.ofFloat(target,"scaleX",0.2f,1f).setDuration(Duration),
                            ObjectAnimator.ofFloat(target,"scaleY",0.2f,1f).setDuration(Duration),
                            ObjectAnimator.ofFloat(target,"alpha",0.3f,1f).setDuration(Duration)
                    );
    
                    set.start();
                }
    
                /**
                 * 这个方法的解析
                 * 当你切换用手势滑动ViewPager,这个方法就会回调
                 * 这个方法生效的条件是下面要return true
                 * @param target 同上
                 * @param offset 这个参数代表偏差,范围 0-1
                 */
                @Override
                public void onPageAnimate(View target, float offset) {
                    ViewHelper.setScaleX(target,1+offset*0.2f);
                    ViewHelper.setScaleY(target,1+offset*0.2f);
                }
    
                /**
                 * 代表是否需要滑动中,调用Icon动画
                 * @return
                 */
                @Override
                public boolean isNeedPageAnimate() {
                    return true;
                }
            });

Copyright 2016 [JPeng]

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.