Pinned(sticky) section header decoration for Android RecyclerView.
*** call setShadow(integer) for using animated drop-shadow on the pinned item. you can adjust the alpha aswell, where 255 is the max value.
Original code for ListView from https://github.com/beworker/pinned-section-listview.
Copyright 2014 HIDAKA Takahiro takahr@gmail.com
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
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