This is a copy of SolidExplorer and achieved 50% of it.
It's a simple file manager demo designed by metarial design. I just copy it to study some new features above Android Lolipop.For example, floating button, navigationView , recylerView and some metarial design visualization.
##UI
##Fragment Stack It's really an interesting thing I've created. I used the fragment to display one folder, so the fragment would be created much if the user accessed too many folders. So I've created a fragment stack to manage these fragment like the activity stack. Actually, I implemented the fragment stack by use a List and a Map. List is used to simulate a stack rather than ths Stack in JDK because there exists some operations of move the elment from middle to top. So the fragment stack is a specfic stack. And the Map is to record the reference of the fragment. Because a fragment implies a file path, so the fragment should be single. So I record the fragment by the path, in a word, Key is the file path and Value is fragment reference.
See the data structure like this:
public class FragmentStack {
private List<BaseFragment> mFragmentStack;
private Map<String, BaseFragment> mFragmentMap;
}##Others Some personal libs like FileOperationManager, ApkUtils, etc are done in package utils.