allow hiding folders

app/src/main/java/com/simplemobiletools/gallery/Config.java

@@ -3,6 +3,9 @@ package com.simplemobiletools.gallery;
 import android.content.Context;
 import android.content.SharedPreferences;
 
+import java.util.HashSet;
+import java.util.Set;
+
 public class Config {
     private SharedPreferences mPrefs;
 
@@ -10,7 +13,7 @@ public class Config {
         return new Config(context);
     }
 
-    public Config(Context context) {
+    private Config(Context context) {
         mPrefs = context.getSharedPreferences(Constants.PREFS_KEY, Context.MODE_PRIVATE);
     }
 
@@ -59,4 +62,14 @@ public class Config {
     public void setDirectorySorting(int order) {
         mPrefs.edit().putInt(Constants.DIRECTORY_SORT_ORDER, order).apply();
     }
+
+    public void addHiddenDirectory(String path) {
+        final Set<String> hiddenFolders = getHiddenFolders();
+        hiddenFolders.add(path);
+        mPrefs.edit().putStringSet(Constants.HIDDEN_FOLDERS, hiddenFolders).apply();
+    }
+
+    public Set<String> getHiddenFolders() {
+        return mPrefs.getStringSet(Constants.HIDDEN_FOLDERS, new HashSet<String>());
+    }
 }

app/src/main/java/com/simplemobiletools/gallery/Constants.java

@@ -15,6 +15,7 @@ public class Constants {
     public static final String IS_SAME_SORTING = "is_same_sorting";
     public static final String SORT_ORDER = "sort_order";
     public static final String DIRECTORY_SORT_ORDER = "directory_sort_order";
+    public static final String HIDDEN_FOLDERS = "hidden_foldersy";
 
     // sorting
     public static final int SORT_BY_NAME = 1;

app/src/main/java/com/simplemobiletools/gallery/activities/MainActivity.java

@@ -43,6 +43,7 @@ import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 
 import butterknife.BindView;
 import butterknife.ButterKnife;
@@ -228,7 +229,7 @@ public class MainActivity extends SimpleActivity
         }
 
         final List<Directory> dirs = new ArrayList<>(directories.values());
-        removeNoMediaDirs(dirs);
+        filderDirectories(dirs);
         Directory.mSorting = mConfig.getDirectorySorting();
         Collections.sort(dirs);
 
@@ -238,7 +239,23 @@ public class MainActivity extends SimpleActivity
         return dirs;
     }
 
-    private void removeNoMediaDirs(List<Directory> dirs) {
+    private void filderDirectories(List<Directory> dirs) {
+        removeHiddenFolders(dirs);
+        removeNoMediaFolders(dirs);
+    }
+
+    private void removeHiddenFolders(List<Directory> dirs) {
+        final Set<String> hiddenDirs = mConfig.getHiddenFolders();
+        final List<Directory> ignoreDirs = new ArrayList<>();
+        for (Directory d : dirs) {
+            if (hiddenDirs.contains(d.getPath()))
+                ignoreDirs.add(d);
+        }
+
+        dirs.removeAll(ignoreDirs);
+    }
+
+    private void removeNoMediaFolders(List<Directory> dirs) {
         final List<Directory> ignoreDirs = new ArrayList<>();
         for (final Directory d : dirs) {
             final File dir = new File(d.getPath());

app/src/main/java/com/simplemobiletools/gallery/activities/MediaActivity.java

@@ -139,6 +139,9 @@ public class MediaActivity extends SimpleActivity
             case R.id.sort:
                 showSortingDialog();
                 return true;
+            case R.id.hide_folder:
+                hideDirectory();
+                return true;
             default:
                 return super.onOptionsItemSelected(item);
         }
@@ -161,6 +164,10 @@ public class MediaActivity extends SimpleActivity
         new ChangeSorting(this, false);
     }
 
+    private void hideDirectory() {
+        mConfig.addHiddenDirectory(mPath);
+    }
+
     private void deleteDirectoryIfEmpty() {
         final File file = new File(mPath);
         if (file.isDirectory() && file.listFiles().length == 0) {

app/src/main/res/menu/menu_media.xml

@@ -6,4 +6,9 @@
         android:icon="@mipmap/sort"
         android:title="@string/sort_by"
         app:showAsAction="ifRoom"/>
+    <item
+        android:id="@+id/hide_folder"
+        android:title="@string/hide_folder"
+        app:showAsAction="never"/>
+
 </menu>

app/src/main/res/values-de/strings.xml

@@ -31,6 +31,7 @@
     <string name="cancel">Abbrechen</string>
     <string name="open_with">Open with</string>
     <string name="no_app_found">No valid app found</string>
+    <string name="hide_folder">Hide folder</string>
 
     <plurals name="folders_deleted">
         <item quantity="one">1 Ordner gelöscht</item>

app/src/main/res/values-es/strings.xml

@@ -31,6 +31,7 @@
     <string name="cancel">Cancelar</string>
     <string name="open_with">Open with</string>
     <string name="no_app_found">No valid app found</string>
+    <string name="hide_folder">Hide folder</string>
 
     <plurals name="folders_deleted">
         <item quantity="one">1 carpeta eliminada</item>

app/src/main/res/values-it/strings.xml

@@ -31,6 +31,7 @@
     <string name="cancel">Cancel</string>
     <string name="open_with">Open with</string>
     <string name="no_app_found">No valid app found</string>
+    <string name="hide_folder">Hide folder</string>
 
     <plurals name="folders_deleted">
         <item quantity="one">1 cartella eliminata</item>

app/src/main/res/values-ja/strings.xml

@@ -31,6 +31,7 @@
     <string name="cancel">Cancel</string>
     <string name="open_with">Open with</string>
     <string name="no_app_found">No valid app found</string>
+    <string name="hide_folder">Hide folder</string>
 
     <plurals name="folders_deleted">
         <item quantity="one">1 フォルダーを削除しました</item>

app/src/main/res/values-pt-rPT/strings.xml

@@ -31,6 +31,7 @@
     <string name="cancel">Cancelar</string>
     <string name="open_with">Open with</string>
     <string name="no_app_found">No valid app found</string>
+    <string name="hide_folder">Hide folder</string>
 
     <plurals name="folders_deleted">
         <item quantity="one">1 pasta eliminada</item>

app/src/main/res/values-sv/strings.xml

@@ -31,6 +31,7 @@
     <string name="cancel">Cancel</string>
     <string name="open_with">Open with</string>
     <string name="no_app_found">No valid app found</string>
+    <string name="hide_folder">Hide folder</string>
 
     <plurals name="folders_deleted">
         <item quantity="one">1 mapp borttagen</item>

app/src/main/res/values/strings.xml

@@ -31,6 +31,7 @@
     <string name="cancel">Cancel</string>
     <string name="open_with">Open with</string>
     <string name="no_app_found">No valid app found</string>
+    <string name="hide_folder">Hide folder</string>
 
     <plurals name="folders_deleted">
         <item quantity="one">1 folder deleted</item>