HeaderListView with Horizontal Scrolling Header

I’m looking for a HeaderListView like this one: http://applidium.github.io/HeaderListView/ but instead have a header that has a horizontal scrolling ability that lists categories of my list view, like …

How to properly validate PNG header in java?

I’m trying to write a function which will check if PNG file is not corrupted. Here I found a function, also provided below, which stores file bytes into its own byte array. I know that the first eight …