Add option to show hidden files and folders

Author: artemnikitin

library/src/main/java/com/nbsp/materialfilepicker/MaterialFilePicker.java

@@ -17,6 +17,7 @@ public class MaterialFilePicker {
     private Boolean mDirectoriesFilter = false;
     private String mRootPath;
     private String mCurrentPath;
+    private Boolean mShowHidden = false;
 
     public MaterialFilePicker() {}
 
@@ -50,6 +51,11 @@ public MaterialFilePicker withPath(String path) {
         return this;
     }
 
+    public MaterialFilePicker withHiddenFiles(boolean show) {
+        mShowHidden = show;
+        return this;
+    }
+
     public void start() {
         if (mActivity == null) {
             throw new RuntimeException("You must pass activity by calling withActivity method");
@@ -74,6 +80,8 @@ public void start() {
             intent.putExtra(FilePickerActivity.ARG_CURRENT_PATH, mCurrentPath);
         }
 
+        intent.putExtra(FilePickerActivity.ARG_SHOW_HIDDEN, mShowHidden);
+
         mActivity.startActivityForResult(intent, mRequestCode);
     }
 }

library/src/main/java/com/nbsp/materialfilepicker/ui/DirectoryFragment.java

@@ -27,13 +27,16 @@ interface FileClickListener {
     private static final String ARG_FILE_PATH = "arg_file_path";
     private static final String ARG_FILE_FILTER = "arg_regexp_file_filter";
     private static final String ARG_DIRECTORIES_FILTER = "arg_directories_filter";
+    private static final String ARG_SHOW_HIDDEN = "arg_show_hidden";
 
     private View mEmptyView;
     private String mPath;
 
     @Nullable private Pattern mFileFilter;
     private boolean mDirectoryFilter;
 
+    private boolean mShowHidden;
+
     private EmptyRecyclerView mDirectoryRecyclerView;
     private DirectoryAdapter mDirectoryAdapter;
     private FileClickListener mFileClickListener;
@@ -51,13 +54,15 @@ public void onDetach() {
         mFileClickListener = null;
     }
 
-    public static DirectoryFragment getInstance(String path, @Nullable Pattern filter, boolean directoriesFilter) {
+    public static DirectoryFragment getInstance(
+            String path, @Nullable Pattern filter, boolean directoriesFilter, boolean showHidden) {
         DirectoryFragment instance = new DirectoryFragment();
 
         Bundle args = new Bundle();
         args.putString(ARG_FILE_PATH, path);
         args.putSerializable(ARG_FILE_FILTER, filter);
         args.putBoolean(ARG_DIRECTORIES_FILTER, directoriesFilter);
+        args.putBoolean(ARG_SHOW_HIDDEN, showHidden);
         instance.setArguments(args);
 
         return instance;
@@ -80,7 +85,8 @@ public void onViewCreated(View view, Bundle savedInstanceState) {
     }
 
     private void initFilesList() {
-        mDirectoryAdapter = new DirectoryAdapter(getActivity(), FileUtils.getFileListByDirPath(mPath, mFileFilter, mDirectoryFilter));
+        mDirectoryAdapter = new DirectoryAdapter(getActivity(),
+                FileUtils.getFileListByDirPath(mPath, mFileFilter, mDirectoryFilter, mShowHidden));
 
         mDirectoryAdapter.setOnItemClickListener(new DirectoryAdapter.OnItemClickListener() {
             @Override
@@ -102,5 +108,6 @@ private void initArgs() {
         }
         mDirectoryFilter = getArguments().getBoolean(ARG_DIRECTORIES_FILTER);
         mFileFilter = (Pattern) getArguments().getSerializable(ARG_FILE_FILTER);
+        mShowHidden = getArguments().getBoolean(ARG_SHOW_HIDDEN, false);
     }
 }

library/src/main/java/com/nbsp/materialfilepicker/ui/FilePickerActivity.java

@@ -26,6 +26,7 @@ public class FilePickerActivity extends AppCompatActivity implements DirectoryFr
     public static final String ARG_DIRECTORIES_FILTER = "arg_directories_filter";
     public static final String ARG_START_PATH = "arg_start_path";
     public static final String ARG_CURRENT_PATH = "arg_current_path";
+    public static final String ARG_SHOW_HIDDEN = "arg_show_hidden";
 
     public static final String STATE_START_PATH = "state_start_path";
     private static final String STATE_CURRENT_PATH = "state_current_path";
@@ -40,6 +41,8 @@ public class FilePickerActivity extends AppCompatActivity implements DirectoryFr
     private Pattern mFileFilter;
     private boolean mDirectoriesFilter;
 
+    private boolean mShowHidden;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -78,6 +81,10 @@ private void initArguments() {
                 mCurrentPath = currentPath;
             }
         }
+
+        if (getIntent().hasExtra(ARG_SHOW_HIDDEN)) {
+            mShowHidden = getIntent().getBooleanExtra(ARG_SHOW_HIDDEN, false);
+        }
     }
 
     private void initToolbar() {
@@ -106,7 +113,8 @@ private void initViews() {
 
     private void initFragment() {
         getFragmentManager().beginTransaction()
-                .add(R.id.container, DirectoryFragment.getInstance(mStartPath, mFileFilter, mDirectoriesFilter))
+                .add(R.id.container, DirectoryFragment.getInstance(
+                        mStartPath, mFileFilter, mDirectoriesFilter, mShowHidden))
                 .commit();
     }
 
@@ -122,7 +130,8 @@ private void updateTitle() {
 
     private void addFragmentToBackStack(String path) {
         getFragmentManager().beginTransaction()
-                .replace(R.id.container, DirectoryFragment.getInstance(path, mFileFilter, mDirectoriesFilter))
+                .replace(R.id.container, DirectoryFragment.getInstance(
+                        path, mFileFilter, mDirectoriesFilter, mShowHidden))
                 .addToBackStack(null)
                 .commit();
     }

library/src/main/java/com/nbsp/materialfilepicker/utils/FileUtils.java

@@ -15,14 +15,18 @@
 public class FileUtils {
     public static List<File> getFileListByDirPath(String path,
                                                   @Nullable Pattern fileFilter,
-                                                  boolean directoriesFilter) {
+                                                  boolean directoriesFilter,
+                                                  boolean showHidden) {
         File directory = new File(path);
         List<File> resultFiles = new ArrayList<>();
 
         File[] files = directory.listFiles();
         if (files != null && files.length > 0) {
             for (File f : files) {
                 if (f.isHidden()) {
+                    if (showHidden) {
+                        resultFiles.add(f);
+                    }
                     continue;
                 }