Header2ActionBar is a library which implements the fading action bar effect that can be seen in the new Play Music and Google Newspaper apps.
Using the library is really simple, just look at the source code of the provided samples.
Artem Chepurnoy - email@example.com
Copyright (C) 2013 AChep@xda <firstname.lastname@example.org> 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.