implemented dynamic tabs

app/src/main/java/code/name/monkey/retromusic/activities/ArtistDetailActivity.kt

@@ -175,7 +175,7 @@ class ArtistDetailActivity : AbsSlidingMusicPanelActivity(), ArtistDetailContrac
         super.onActivityResult(requestCode, resultCode, data)
         when (requestCode) {
             REQUEST_CODE_SELECT_IMAGE -> if (resultCode == Activity.RESULT_OK) {
-                CustomArtistImageUtil.getInstance(this).setCustomArtistImage(artist!!, data!!.data!!)
+                data?.data?.let { CustomArtistImageUtil.getInstance(this).setCustomArtistImage(artist, it) }
             }
             else -> if (resultCode == Activity.RESULT_OK) {
                 reload()

app/src/main/java/code/name/monkey/retromusic/activities/MainActivity.kt

@@ -24,7 +24,6 @@ import code.name.monkey.retromusic.loaders.AlbumLoader
 import code.name.monkey.retromusic.loaders.ArtistLoader
 import code.name.monkey.retromusic.loaders.PlaylistSongsLoader
 import code.name.monkey.retromusic.service.MusicService
-import code.name.monkey.retromusic.util.NavigationUtil
 import code.name.monkey.retromusic.util.PreferenceUtil
 import io.reactivex.disposables.CompositeDisposable
 import java.util.*
@@ -62,12 +61,17 @@ class MainActivity : AbsSlidingMusicPanelActivity(), SharedPreferences.OnSharedP
         setDrawUnderStatusBar()
         super.onCreate(savedInstanceState)
 
+        getBottomNavigationView().selectedItemId = PreferenceUtil.getInstance().lastPage
+
         getBottomNavigationView().setOnNavigationItemSelectedListener {
             PreferenceUtil.getInstance().lastPage = it.itemId
             selectedFragment(it.itemId)
+
             true
+
         }
 
+
         if (savedInstanceState == null) {
             selectedFragment(PreferenceUtil.getInstance().lastPage)
         } else {
@@ -254,8 +258,10 @@ class MainActivity : AbsSlidingMusicPanelActivity(), SharedPreferences.OnSharedP
                 key == PreferenceUtil.ALBUM_COVER_STYLE ||
                 key == PreferenceUtil.HOME_ARTIST_GRID_STYLE ||
                 key == PreferenceUtil.ALBUM_COVER_TRANSFORM ||
-                key == PreferenceUtil.TAB_TEXT_MODE)
+                key == PreferenceUtil.TAB_TEXT_MODE ||
+                key == PreferenceUtil.LIBRARY_CATEGORIES)
             postRecreate()
+
     }
 
     private fun showPromotionalOffer() {
@@ -277,6 +283,7 @@ class MainActivity : AbsSlidingMusicPanelActivity(), SharedPreferences.OnSharedP
             R.id.action_album,
             R.id.action_artist,
             R.id.action_playlist,
+            R.id.action_genre,
             R.id.action_song -> setCurrentFragment(LibraryFragment.newInstance(itemId), false)
             R.id.action_home -> setCurrentFragment(BannerHomeFragment.newInstance(), false)
             R.id.action_folder -> setCurrentFragment(FoldersFragment.newInstance(this), false)
@@ -296,8 +303,6 @@ class MainActivity : AbsSlidingMusicPanelActivity(), SharedPreferences.OnSharedP
 
     companion object {
         const val APP_INTRO_REQUEST = 2323
-        const val LIBRARY = 1
-        const val FOLDERS = 3
         const val HOME = 0
         private const val TAG = "MainActivity"
         private const val APP_USER_INFO_REQUEST = 9003

app/src/main/java/code/name/monkey/retromusic/activities/base/AbsSlidingMusicPanelActivity.kt

@@ -61,6 +61,8 @@ abstract class AbsSlidingMusicPanelActivity : AbsMusicServiceActivity(), Sliding
 
         chooseFragmentForTheme()
         setupSlidingUpPanel()
+
+        updateTabs()
     }
 
     override fun onResume() {
@@ -307,4 +309,16 @@ abstract class AbsSlidingMusicPanelActivity : AbsMusicServiceActivity(), Sliding
         }
     }
 
+
+      fun updateTabs() {
+        bottomNavigationView.menu.clear()
+        val currentTabs = PreferenceUtil.getInstance().libraryCategoryInfos
+        for (tab in currentTabs) {
+            if (tab.visible) {
+                val menu = tab.category;
+                bottomNavigationView.menu.add(0, menu.id, 0, menu.stringRes)
+                        .setIcon(menu.icon)
+            }
+        }
+    }
 }

app/src/main/java/code/name/monkey/retromusic/adapter/CategoryInfoAdapter.java

@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2019 Hemanth Savarala.
+ *
+ * Licensed under the GNU General Public License v3
+ *
+ * This is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by
+ *  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ */
+
+package code.name.monkey.retromusic.adapter;
+
+import android.annotation.SuppressLint;
+import android.view.LayoutInflater;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CheckBox;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.ItemTouchHelper;
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.util.List;
+
+import code.name.monkey.retromusic.R;
+import code.name.monkey.retromusic.model.CategoryInfo;
+import code.name.monkey.retromusic.util.SwipeAndDragHelper;
+
+public class CategoryInfoAdapter extends RecyclerView.Adapter<CategoryInfoAdapter.ViewHolder> implements SwipeAndDragHelper.ActionCompletionContract {
+    private List<CategoryInfo> categoryInfos;
+    private ItemTouchHelper touchHelper;
+
+    public CategoryInfoAdapter(@NonNull List<CategoryInfo> categoryInfos) {
+        this.categoryInfos = categoryInfos;
+        SwipeAndDragHelper swipeAndDragHelper = new SwipeAndDragHelper(this);
+        touchHelper = new ItemTouchHelper(swipeAndDragHelper);
+    }
+
+    @Override
+    @NonNull
+    public CategoryInfoAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.preference_dialog_library_categories_listitem, parent, false);
+        return new ViewHolder(view);
+    }
+
+    @SuppressLint("ClickableViewAccessibility")
+    @Override
+    public void onBindViewHolder(@NonNull CategoryInfoAdapter.ViewHolder holder, int position) {
+        CategoryInfo categoryInfo = categoryInfos.get(position);
+
+        holder.checkBox.setChecked(categoryInfo.visible);
+        holder.title.setText(holder.title.getResources().getString(categoryInfo.category.stringRes));
+
+        holder.itemView.setOnClickListener(v -> {
+            if (!(categoryInfo.visible && isLastCheckedCategory(categoryInfo))) {
+                categoryInfo.visible = !categoryInfo.visible;
+                holder.checkBox.setChecked(categoryInfo.visible);
+            } else {
+                Toast.makeText(holder.itemView.getContext(), R.string.you_have_to_select_at_least_one_category, Toast.LENGTH_SHORT).show();
+            }
+        });
+
+        holder.dragView.setOnTouchListener((view, event) -> {
+                    if (event.getActionMasked() == MotionEvent.ACTION_DOWN) {
+                        touchHelper.startDrag(holder);
+                    }
+                    return false;
+                }
+        );
+    }
+
+    @Override
+    public int getItemCount() {
+        return categoryInfos.size();
+    }
+
+    @Override
+    public void onViewMoved(int oldPosition, int newPosition) {
+        CategoryInfo categoryInfo = categoryInfos.get(oldPosition);
+        categoryInfos.remove(oldPosition);
+        categoryInfos.add(newPosition, categoryInfo);
+        notifyItemMoved(oldPosition, newPosition);
+    }
+
+    public void attachToRecyclerView(RecyclerView recyclerView) {
+        touchHelper.attachToRecyclerView(recyclerView);
+    }
+
+    @NonNull
+    public List<CategoryInfo> getCategoryInfos() {
+        return categoryInfos;
+    }
+
+    public void setCategoryInfos(@NonNull List<CategoryInfo> categoryInfos) {
+        this.categoryInfos = categoryInfos;
+        notifyDataSetChanged();
+    }
+
+    private boolean isLastCheckedCategory(CategoryInfo categoryInfo) {
+        if (categoryInfo.visible) {
+            for (CategoryInfo c : categoryInfos) {
+                if (c != categoryInfo && c.visible) return false;
+            }
+        }
+        return true;
+    }
+
+    static class ViewHolder extends RecyclerView.ViewHolder {
+        CheckBox checkBox;
+        TextView title;
+        View dragView;
+
+        ViewHolder(View view) {
+            super(view);
+            checkBox = view.findViewById(R.id.checkbox);
+            title = view.findViewById(R.id.title);
+            dragView = view.findViewById(R.id.drag_view);
+        }
+    }
+}

app/src/main/java/code/name/monkey/retromusic/adapter/GenreAdapter.kt

@@ -4,14 +4,12 @@ import android.app.Activity
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-
-import java.util.ArrayList
-import java.util.Locale
 import androidx.recyclerview.widget.RecyclerView
 import code.name.monkey.retromusic.R
-import code.name.monkey.retromusic.model.Genre
 import code.name.monkey.retromusic.adapter.base.MediaEntryViewHolder
+import code.name.monkey.retromusic.model.Genre
 import code.name.monkey.retromusic.util.NavigationUtil
+import java.util.*
 
 /**
  * @author Hemanth S (h4h13).
@@ -40,10 +38,6 @@ class GenreAdapter(private val mActivity: Activity, dataSet: ArrayList<Genre>, p
             else
                 mActivity.getString(R.string.song))
         }
-
-        if (holder.separator != null) {
-            holder.separator!!.visibility = View.GONE
-        }
     }
 
     override fun getItemCount(): Int {
@@ -56,14 +50,6 @@ class GenreAdapter(private val mActivity: Activity, dataSet: ArrayList<Genre>, p
     }
 
     inner class ViewHolder(itemView: View) : MediaEntryViewHolder(itemView) {
-        init {
-            if (menu != null) {
-                menu!!.visibility = View.GONE
-            }
-            assert(imageContainer != null)
-            imageContainer!!.visibility = View.GONE
-        }
-
         override fun onClick(v: View?) {
             super.onClick(v)
             val genre = dataSet[adapterPosition]

app/src/main/java/code/name/monkey/retromusic/adapter/HomeAdapter.kt

@@ -32,7 +32,6 @@ class HomeAdapter(private val activity: AppCompatActivity, private var homes: Li
         val layout = LayoutInflater.from(activity).inflate(R.layout.section_recycler_view, parent, false)
         return when (viewType) {
             RECENT_ARTISTS, TOP_ARTISTS -> ArtistViewHolder(layout)
-            GENRES -> GenreViewHolder(layout)
             PLAYLISTS -> PlaylistViewHolder(layout)
             else -> {
                 AlbumViewHolder(LayoutInflater.from(activity).inflate(R.layout.metal_section_recycler_view, parent, false))
@@ -52,10 +51,6 @@ class HomeAdapter(private val activity: AppCompatActivity, private var homes: Li
                 val viewHolder = holder as ArtistViewHolder
                 viewHolder.bindView(home)
             }
-            GENRES -> {
-                val viewHolder = holder as GenreViewHolder
-                viewHolder.bindView(home)
-            }
             PLAYLISTS -> {
                 val viewHolder = holder as PlaylistViewHolder
                 viewHolder.bindView(home)
@@ -108,20 +103,6 @@ class HomeAdapter(private val activity: AppCompatActivity, private var homes: Li
             chip.setChipIconResource(home.icon)
         }
     }
-
-    private inner class GenreViewHolder(view: View) : AbsHomeViewItem(view) {
-        fun bindView(home: Home) {
-            recyclerView.apply {
-                val genreAdapter = GenreAdapter(activity, home.arrayList as ArrayList<Genre>, R.layout.item_list)
-                layoutManager = LinearLayoutManager(context)
-                adapter = genreAdapter
-
-            }
-            chip.text = activity.getString(home.title)
-            chip.setChipIconResource(home.icon)
-        }
-    }
-
     private inner class PlaylistViewHolder(view: View) : AbsHomeViewItem(view) {
         fun bindView(home: Home) {
             val songs = PlaylistSongsLoader.getPlaylistSongList(activity, home.arrayList[0] as Playlist).blockingFirst()

app/src/main/java/code/name/monkey/retromusic/fragments/mainactivity/AlbumsFragment.kt

@@ -3,11 +3,11 @@ package code.name.monkey.retromusic.fragments.mainactivity
 import android.os.Bundle
 import androidx.recyclerview.widget.GridLayoutManager
 import code.name.monkey.retromusic.R
+import code.name.monkey.retromusic.adapter.album.AlbumAdapter
+import code.name.monkey.retromusic.fragments.base.AbsLibraryPagerRecyclerViewCustomGridSizeFragment
 import code.name.monkey.retromusic.model.Album
 import code.name.monkey.retromusic.mvp.contract.AlbumContract
 import code.name.monkey.retromusic.mvp.presenter.AlbumPresenter
-import code.name.monkey.retromusic.adapter.album.AlbumAdapter
-import code.name.monkey.retromusic.fragments.base.AbsLibraryPagerRecyclerViewCustomGridSizeFragment
 import code.name.monkey.retromusic.util.PreferenceUtil
 
 open class AlbumsFragment : AbsLibraryPagerRecyclerViewCustomGridSizeFragment<AlbumAdapter, GridLayoutManager>(), AlbumContract.AlbumView {
@@ -95,23 +95,9 @@ open class AlbumsFragment : AbsLibraryPagerRecyclerViewCustomGridSizeFragment<Al
         presenter = AlbumPresenter(this)
     }
 
-    override fun setMenuVisibility(menuVisible: Boolean) {
-        super.setMenuVisibility(menuVisible)
-        if (menuVisible) {
-
-            libraryFragment.setTitle(
-                    if (PreferenceUtil.getInstance().tabTitles())
-                        R.string.library
-                    else
-                        R.string.albums)
-        }
-    }
 
     override fun onResume() {
         super.onResume()
-
-        libraryFragment.setTitle(
-                if (PreferenceUtil.getInstance().tabTitles()) R.string.library else R.string.albums)
         if (adapter!!.dataSet.isEmpty()) {
             presenter.subscribe()
         }

app/src/main/java/code/name/monkey/retromusic/fragments/mainactivity/ArtistsFragment.kt

@@ -3,11 +3,11 @@ package code.name.monkey.retromusic.fragments.mainactivity
 import android.os.Bundle
 import androidx.recyclerview.widget.GridLayoutManager
 import code.name.monkey.retromusic.R
+import code.name.monkey.retromusic.adapter.artist.ArtistAdapter
+import code.name.monkey.retromusic.fragments.base.AbsLibraryPagerRecyclerViewCustomGridSizeFragment
 import code.name.monkey.retromusic.model.Artist
 import code.name.monkey.retromusic.mvp.contract.ArtistContract
 import code.name.monkey.retromusic.mvp.presenter.ArtistPresenter
-import code.name.monkey.retromusic.adapter.artist.ArtistAdapter
-import code.name.monkey.retromusic.fragments.base.AbsLibraryPagerRecyclerViewCustomGridSizeFragment
 import code.name.monkey.retromusic.util.PreferenceUtil
 import java.util.*
 
@@ -86,22 +86,8 @@ class ArtistsFragment : AbsLibraryPagerRecyclerViewCustomGridSizeFragment<Artist
         presenter.loadArtists()
     }
 
-
-    override fun setMenuVisibility(menuVisible: Boolean) {
-        super.setMenuVisibility(menuVisible)
-        if (menuVisible) {
-            libraryFragment.setTitle(
-                    if (PreferenceUtil.getInstance().tabTitles())
-                        R.string.library
-                    else
-                        R.string.artists)
-        }
-    }
-
     override fun onResume() {
         super.onResume()
-        libraryFragment.setTitle(
-                if (PreferenceUtil.getInstance().tabTitles()) R.string.library else R.string.artists)
         if (adapter!!.dataSet.isEmpty()) {
             presenter.subscribe()
         }

app/src/main/java/code/name/monkey/retromusic/fragments/mainactivity/GenresFragment.kt

@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2019 Hemanth Savarala.
+ *
+ * Licensed under the GNU General Public License v3
+ *
+ * This is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by
+ *  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ */
+
+package code.name.monkey.retromusic.fragments.mainactivity
+
+import android.os.Bundle
+import androidx.recyclerview.widget.LinearLayoutManager
+import code.name.monkey.retromusic.R
+import code.name.monkey.retromusic.adapter.GenreAdapter
+import code.name.monkey.retromusic.fragments.base.AbsLibraryPagerRecyclerViewFragment
+import code.name.monkey.retromusic.model.Genre
+import code.name.monkey.retromusic.mvp.contract.GenreContract
+import code.name.monkey.retromusic.mvp.presenter.GenrePresenter
+
+
+class GenresFragment : AbsLibraryPagerRecyclerViewFragment<GenreAdapter, LinearLayoutManager>(), GenreContract.GenreView {
+    override fun loading() {
+
+    }
+
+    override fun showData(list: ArrayList<Genre>) {
+        adapter?.swapDataSet(list)
+    }
+
+    override fun showEmptyView() {
+
+    }
+
+    override fun completed() {
+
+    }
+
+    override fun createLayoutManager(): LinearLayoutManager {
+        return LinearLayoutManager(activity)
+    }
+
+    override fun createAdapter(): GenreAdapter {
+        val dataSet = if (adapter == null) ArrayList() else adapter!!.dataSet
+        return GenreAdapter(libraryFragment.mainActivity, dataSet, R.layout.item_list_no_image)
+    }
+
+    override val emptyMessage: Int
+        get() = R.string.no_genres
+
+    private lateinit var presenter: GenrePresenter
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        presenter = GenrePresenter(this)
+    }
+
+    override fun onResume() {
+        super.onResume()
+        if (adapter!!.dataSet.isEmpty()) {
+            presenter.subscribe()
+        }
+    }
+
+    override fun onDestroy() {
+        presenter.unsubscribe()
+        super.onDestroy()
+    }
+
+    override fun onMediaStoreChanged() {
+        presenter.loadGenre()
+    }
+
+    companion object {
+
+        fun newInstance(): GenresFragment {
+            return GenresFragment()
+        }
+    }
+}

app/src/main/java/code/name/monkey/retromusic/fragments/mainactivity/LibraryFragment.java

@@ -1,7 +1,6 @@
 package code.name.monkey.retromusic.fragments.mainactivity;
 
 import android.app.Activity;
-import android.graphics.Color;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.Menu;
@@ -26,10 +25,11 @@ import com.google.android.material.card.MaterialCardView;
 
 import org.jetbrains.annotations.NotNull;
 
+import java.util.Objects;
+
 import code.name.monkey.appthemehelper.ThemeStore;
 import code.name.monkey.appthemehelper.common.ATHToolbarActivity;
 import code.name.monkey.appthemehelper.util.ATHUtil;
-import code.name.monkey.appthemehelper.util.ColorUtil;
 import code.name.monkey.appthemehelper.util.TintHelper;
 import code.name.monkey.appthemehelper.util.ToolbarContentTintHelper;
 import code.name.monkey.retromusic.R;
@@ -137,6 +137,9 @@ public class LibraryFragment extends AbsMainActivityFragment implements CabHolde
             case R.id.action_playlist:
                 selectedFragment(PlaylistsFragment.Companion.newInstance());
                 break;
+            case R.id.action_genre:
+                selectedFragment(GenresFragment.Companion.newInstance());
+                break;
         }
     }
 
@@ -144,13 +147,13 @@ public class LibraryFragment extends AbsMainActivityFragment implements CabHolde
     private void setupToolbar() {
         int primaryColor = ThemeStore.Companion.primaryColor(getContext());
         TintHelper.setTintAuto(contentContainer, primaryColor, true);
+        appBarLayout.setBackgroundColor(primaryColor);
         toolbar.setBackgroundColor(RetroColorUtil.toolbarColor(getMainActivity()));
         toolbar.setNavigationIcon(R.drawable.ic_menu_white_24dp);
         toolbar.setOnClickListener(v -> {
             Pair<View, String> pair = new Pair<>(toolbarContainer, getString(R.string.transition_toolbar));
             NavigationUtil.goToSearch(getMainActivity(), pair);
         });
-        appBarLayout.setBackgroundColor(primaryColor);
         appBarLayout.addOnOffsetChangedListener((appBarLayout, verticalOffset) ->
                 getMainActivity().setLightStatusbar(!ATHUtil.INSTANCE.isWindowBackgroundDark(getContext())));
         getMainActivity().setSupportActionBar(toolbar);
@@ -187,12 +190,12 @@ public class LibraryFragment extends AbsMainActivityFragment implements CabHolde
         if (cab != null && cab.isActive()) {
             cab.finish();
         }
-        //noinspection ConstantConditions
+
         cab = new MaterialCab(getMainActivity(), R.id.cab_stub)
                 .setMenu(menuRes)
                 .setCloseDrawableRes(R.drawable.ic_close_white_24dp)
                 .setBackgroundColor(
-                        RetroColorUtil.shiftBackgroundColorForLightText(ThemeStore.Companion.primaryColor(getActivity())))
+                        RetroColorUtil.shiftBackgroundColorForLightText(ThemeStore.Companion.primaryColor(Objects.requireNonNull(getActivity()))))
                 .start(callback);
         return cab;
     }

app/src/main/java/code/name/monkey/retromusic/fragments/mainactivity/PlaylistsFragment.kt

@@ -5,12 +5,11 @@ import android.view.Menu
 import android.view.MenuInflater
 import androidx.recyclerview.widget.LinearLayoutManager
 import code.name.monkey.retromusic.R
+import code.name.monkey.retromusic.adapter.playlist.PlaylistAdapter
+import code.name.monkey.retromusic.fragments.base.AbsLibraryPagerRecyclerViewFragment
 import code.name.monkey.retromusic.model.Playlist
 import code.name.monkey.retromusic.mvp.contract.PlaylistContract
 import code.name.monkey.retromusic.mvp.presenter.PlaylistPresenter
-import code.name.monkey.retromusic.adapter.playlist.PlaylistAdapter
-import code.name.monkey.retromusic.fragments.base.AbsLibraryPagerRecyclerViewFragment
-import code.name.monkey.retromusic.util.PreferenceUtil
 import java.util.*
 
 
@@ -36,16 +35,8 @@ class PlaylistsFragment : AbsLibraryPagerRecyclerViewFragment<PlaylistAdapter, L
                 R.layout.item_list, libraryFragment)
     }
 
-    override fun setMenuVisibility(menuVisible: Boolean) {
-        super.setMenuVisibility(menuVisible)
-        if (menuVisible) {
-            libraryFragment.setTitle(if (PreferenceUtil.getInstance().tabTitles()) R.string.library else R.string.playlists)
-        }
-    }
-
     override fun onResume() {
         super.onResume()
-        libraryFragment.setTitle(if (PreferenceUtil.getInstance().tabTitles()) R.string.library else R.string.playlists)
         if (adapter!!.dataSet.isEmpty()) {
             presenter.subscribe()
         }

app/src/main/java/code/name/monkey/retromusic/fragments/mainactivity/SongsFragment.kt

@@ -2,14 +2,13 @@ package code.name.monkey.retromusic.fragments.mainactivity
 
 import android.os.Bundle
 import androidx.recyclerview.widget.GridLayoutManager
-
 import code.name.monkey.retromusic.R
-import code.name.monkey.retromusic.model.Song
-import code.name.monkey.retromusic.mvp.contract.SongContract
-import code.name.monkey.retromusic.mvp.presenter.SongPresenter
 import code.name.monkey.retromusic.adapter.song.ShuffleButtonSongAdapter
 import code.name.monkey.retromusic.adapter.song.SongAdapter
 import code.name.monkey.retromusic.fragments.base.AbsLibraryPagerRecyclerViewCustomGridSizeFragment
+import code.name.monkey.retromusic.model.Song
+import code.name.monkey.retromusic.mvp.contract.SongContract
+import code.name.monkey.retromusic.mvp.presenter.SongPresenter
 import code.name.monkey.retromusic.util.PreferenceUtil
 import java.util.*
 
@@ -81,23 +80,11 @@ class SongsFragment : AbsLibraryPagerRecyclerViewCustomGridSizeFragment<SongAdap
 
     override fun onResume() {
         super.onResume()
-        libraryFragment.setTitle(if (PreferenceUtil.getInstance().tabTitles()) R.string.library else R.string.songs)
         if (adapter!!.dataSet.isEmpty()) {
             presenter.subscribe()
         }
     }
 
-    override fun setMenuVisibility(menuVisible: Boolean) {
-        super.setMenuVisibility(menuVisible)
-        if (menuVisible) {
-            libraryFragment.setTitle(
-                    if (PreferenceUtil.getInstance().tabTitles())
-                        R.string.library
-                    else
-                        R.string.songs)
-        }
-    }
-
     override fun onDestroy() {
         presenter.unsubscribe()
         super.onDestroy()

app/src/main/java/code/name/monkey/retromusic/fragments/settings/AbsSettingsFragment.kt

@@ -71,8 +71,9 @@ abstract class AbsSettingsFragment : PreferenceFragmentCompat() {
         var dialogFragment: DialogFragment? = null// Dialog creation could not be handled here. Try with the super method.
         // The dialog was created (it was one of our custom Preferences), show the dialog for it
         when (preference) {
-            is NowPlayingScreenPreference -> dialogFragment = NowPlayingScreenPreferenceDialog.newInstance(preference.key)
+            is LibraryPreference -> dialogFragment = LibraryPreferenceDialog.newInstance()
-            is AlbumCoverStylePreference -> dialogFragment = AlbumCoverStylePreferenceDialog.newInstance(preference.key)
+            is NowPlayingScreenPreference -> dialogFragment = NowPlayingScreenPreferenceDialog.newInstance( )
+            is AlbumCoverStylePreference -> dialogFragment = AlbumCoverStylePreferenceDialog.newInstance()
             is MaterialListPreference -> {
                 preference.entries
                 dialogFragment = MaterialListPreferenceDialog.newInstance(preference)

app/src/main/java/code/name/monkey/retromusic/model/CategoryInfo.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2019 Hemanth Savarala.
+ *
+ * Licensed under the GNU General Public License v3
+ *
+ * This is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by
+ *  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ */
+
+package code.name.monkey.retromusic.model;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import code.name.monkey.retromusic.R;
+
+
+public class CategoryInfo implements Parcelable {
+    public static final Creator<CategoryInfo> CREATOR = new Creator<CategoryInfo>() {
+        public CategoryInfo createFromParcel(Parcel source) {
+            return new CategoryInfo(source);
+        }
+
+        public CategoryInfo[] newArray(int size) {
+            return new CategoryInfo[size];
+        }
+    };
+    public Category category;
+    public boolean visible;
+
+    public CategoryInfo(Category category, boolean visible) {
+        this.category = category;
+        this.visible = visible;
+    }
+
+
+    private CategoryInfo(Parcel source) {
+        category = (Category) source.readSerializable();
+        visible = source.readInt() == 1;
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeSerializable(category);
+        dest.writeInt(visible ? 1 : 0);
+    }
+
+    public enum Category {
+        HOME(R.id.action_home, R.string.home, R.drawable.toggle_home),
+        SONGS(R.id.action_song, R.string.songs, R.drawable.toggle_audiotrack),
+        ALBUMS(R.id.action_album, R.string.albums, R.drawable.toggle_album),
+        ARTISTS(R.id.action_artist, R.string.artists, R.drawable.toggle_artist),
+        PLAYLISTS(R.id.action_playlist, R.string.playlists, R.drawable.toggle_queue_music),
+        GENRES(R.id.action_genre, R.string.genres, R.drawable.toggle_guitar);
+
+        public final int stringRes;
+        public final int id;
+        public final int icon;
+
+        Category(int id, int stringRes, int icon) {
+            this.stringRes = stringRes;
+            this.id = id;
+            this.icon = icon;
+        }
+    }
+}

app/src/main/java/code/name/monkey/retromusic/mvp/presenter/HomePresenter.kt

@@ -42,7 +42,6 @@ class HomePresenter(private val view: HomeContract.HomeView) : Presenter(), Home
         loadTopArtists()
         loadATopAlbums()
         loadFavorite()
-        if (PreferenceUtil.getInstance().isGenreShown) loadGenre()
     }
 
     override fun subscribe() {
@@ -102,14 +101,4 @@ class HomePresenter(private val view: HomeContract.HomeView) : Presenter(), Home
                     view.showEmptyView()
                 })
     }
-
-    private fun loadGenre() {
-        disposable += repository.allGenres
-                .subscribe({
-                    if (it.isNotEmpty()) hashSet.add(Home(6, R.string.genres, 0, it, GENRES, R.drawable.ic_guitar_acoustic_white_24dp))
-                    view.showData(ArrayList(hashSet))
-                }, {
-                    view.showEmptyView()
-                })
-    }
 }

app/src/main/java/code/name/monkey/retromusic/preferences/AlbumCoverStylePreferenceDialog.kt

@@ -33,7 +33,6 @@ import code.name.monkey.retromusic.fragments.AlbumCoverStyle
 import code.name.monkey.retromusic.util.PreferenceUtil
 import code.name.monkey.retromusic.util.ViewUtil
 import com.afollestad.materialdialogs.MaterialDialog
-import com.afollestad.materialdialogs.bottomsheets.BottomSheet
 import com.afollestad.materialdialogs.customview.customView
 import com.bumptech.glide.Glide
 
@@ -131,14 +130,8 @@ class AlbumCoverStylePreferenceDialog : PreferenceDialogFragmentCompat(), ViewPa
     companion object {
         val TAG: String = AlbumCoverStylePreferenceDialog::class.java.simpleName
 
-        private const val EXTRA_KEY = "key"
+        fun newInstance(): AlbumCoverStylePreferenceDialog {
-
+            return AlbumCoverStylePreferenceDialog()
-        fun newInstance(key: String): AlbumCoverStylePreferenceDialog {
-            val args = Bundle()
-            args.putString(EXTRA_KEY, key)
-            val fragment = AlbumCoverStylePreferenceDialog()
-            fragment.arguments = args
-            return fragment
         }
     }
 }

app/src/main/java/code/name/monkey/retromusic/preferences/BlacklistPreferenceDialog.kt

@@ -23,6 +23,7 @@ import android.util.AttributeSet
 import androidx.fragment.app.DialogFragment
 import androidx.preference.DialogPreference
 import code.name.monkey.appthemehelper.ThemeStore
+import code.name.monkey.appthemehelper.common.prefs.supportv7.ATEDialogPreference
 import code.name.monkey.retromusic.R
 import code.name.monkey.retromusic.dialogs.BlacklistFolderChooserDialog
 import code.name.monkey.retromusic.providers.BlacklistStore
@@ -32,7 +33,7 @@ import com.afollestad.materialdialogs.list.listItems
 import java.io.File
 import java.util.*
 
-class BlacklistPreference : DialogPreference {
+class BlacklistPreference : ATEDialogPreference {
     constructor(context: Context) : super(context)
 
     constructor(context: Context, attrs: AttributeSet) : super(context, attrs)

app/src/main/java/code/name/monkey/retromusic/preferences/LibraryPreference.kt

@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2019 Hemanth Savarala.
+ *
+ * Licensed under the GNU General Public License v3
+ *
+ * This is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by
+ *  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ */
+
+package code.name.monkey.retromusic.preferences
+
+import android.app.Dialog
+import android.content.Context
+import android.graphics.PorterDuff
+import android.os.Bundle
+import android.util.AttributeSet
+import android.widget.Toast
+import androidx.fragment.app.DialogFragment
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import code.name.monkey.appthemehelper.ThemeStore
+import code.name.monkey.appthemehelper.common.prefs.supportv7.ATEDialogPreference
+import code.name.monkey.retromusic.adapter.CategoryInfoAdapter
+import code.name.monkey.retromusic.model.CategoryInfo
+import code.name.monkey.retromusic.util.PreferenceUtil
+import com.afollestad.materialdialogs.MaterialDialog
+import com.afollestad.materialdialogs.bottomsheets.BottomSheet
+import com.afollestad.materialdialogs.customview.customView
+import java.util.*
+
+
+class LibraryPreference : ATEDialogPreference {
+    constructor(context: Context) : super(context) {}
+
+    constructor(context: Context, attrs: AttributeSet) : super(context, attrs) {}
+
+    constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr) {}
+
+    constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int, defStyleRes: Int) : super(context, attrs, defStyleAttr, defStyleRes) {}
+
+    init {
+        icon?.setColorFilter(ThemeStore.textColorSecondary(context), PorterDuff.Mode.SRC_IN)
+    }
+}
+
+class LibraryPreferenceDialog : DialogFragment() {
+    lateinit var adapter: CategoryInfoAdapter
+
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        val view = activity!!.layoutInflater.inflate(code.name.monkey.retromusic.R.layout.preference_dialog_library_categories, null)
+
+        val categoryInfos: List<CategoryInfo>
+        if (savedInstanceState != null) {
+            categoryInfos = savedInstanceState.getParcelableArrayList(PreferenceUtil.LIBRARY_CATEGORIES)
+        } else {
+            categoryInfos = PreferenceUtil.getInstance().getLibraryCategoryInfos()
+        }
+        adapter = CategoryInfoAdapter(categoryInfos)
+
+        val recyclerView = view.findViewById<RecyclerView>(code.name.monkey.retromusic.R.id.recycler_view)
+        recyclerView.layoutManager = LinearLayoutManager(activity)
+        recyclerView.adapter = adapter
+
+        adapter.attachToRecyclerView(recyclerView)
+
+
+        return MaterialDialog(context!!, BottomSheet())
+                .title(code.name.monkey.retromusic.R.string.library_categories)
+                .customView(view = view)
+                .positiveButton(android.R.string.ok) {
+                    updateCategories(adapter.categoryInfos)
+                    dismiss()
+                }
+                .negativeButton(android.R.string.cancel) {
+                    dismiss()
+                }
+                .neutralButton(code.name.monkey.retromusic.R.string.reset_action) {
+                    adapter.categoryInfos = PreferenceUtil.getInstance().defaultLibraryCategoryInfos
+                }
+                .noAutoDismiss()
+    }
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        super.onSaveInstanceState(outState)
+        outState.putParcelableArrayList(PreferenceUtil.LIBRARY_CATEGORIES, ArrayList(adapter.categoryInfos))
+    }
+
+    private fun updateCategories(categories: List<CategoryInfo>) {
+        if (getSelected(categories) == 0) return
+        if (getSelected(categories) > 5) {
+            Toast.makeText(context, "Not more than 5 items", Toast.LENGTH_SHORT).show()
+            return
+        }
+        PreferenceUtil.getInstance().libraryCategoryInfos = categories
+    }
+
+    private fun getSelected(categories: List<CategoryInfo>): Int {
+        var selected = 0
+        for (categoryInfo in categories) {
+            if (categoryInfo.visible)
+                selected++
+        }
+        return selected
+    }
+
+    companion object {
+
+        fun newInstance(): LibraryPreferenceDialog {
+            return LibraryPreferenceDialog()
+        }
+    }
+}

app/src/main/java/code/name/monkey/retromusic/preferences/NowPlayingScreenPreferenceDialog.kt

@@ -124,14 +124,10 @@ class NowPlayingScreenPreferenceDialog : PreferenceDialogFragmentCompat(), ViewP
     }
 
     companion object {
-        private const val EXTRA_KEY = "key"
 
-        fun newInstance(key: String): NowPlayingScreenPreferenceDialog {
+
-            val args = Bundle()
+        fun newInstance(): NowPlayingScreenPreferenceDialog {
-            args.putString(EXTRA_KEY, key)
+            return NowPlayingScreenPreferenceDialog()
-            val fragment = NowPlayingScreenPreferenceDialog()
-            fragment.arguments = args
-            return fragment
         }
     }
 }

app/src/main/java/code/name/monkey/retromusic/util/CustomArtistImageUtil.kt

@@ -58,6 +58,7 @@ class CustomArtistImageUtil private constructor(context: Context) {
                             @SuppressLint("ApplySharedPref")
                             override fun doInBackground(vararg params: Void): Void? {
                                 val dir = File(App.context.filesDir, FOLDER_NAME)
+                                println(dir.absolutePath)
                                 if (!dir.exists()) {
                                     if (!dir.mkdirs()) { // create the folder
                                         return null

app/src/main/java/code/name/monkey/retromusic/util/PreferenceUtil.java

@@ -27,8 +27,14 @@ import androidx.annotation.StyleRes;
 import androidx.viewpager.widget.ViewPager;
 
 import com.google.android.material.bottomnavigation.LabelVisibilityMode;
+import com.google.gson.Gson;
+import com.google.gson.JsonSyntaxException;
+import com.google.gson.reflect.TypeToken;
 
 import java.io.File;
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.Objects;
 
 import code.name.monkey.retromusic.App;
@@ -38,6 +44,7 @@ import code.name.monkey.retromusic.fragments.AlbumCoverStyle;
 import code.name.monkey.retromusic.fragments.NowPlayingScreen;
 import code.name.monkey.retromusic.fragments.mainactivity.folders.FoldersFragment;
 import code.name.monkey.retromusic.helper.SortOrder;
+import code.name.monkey.retromusic.model.CategoryInfo;
 import code.name.monkey.retromusic.transform.CascadingPageTransformer;
 import code.name.monkey.retromusic.transform.DepthTransformation;
 import code.name.monkey.retromusic.transform.HingeTransformation;
@@ -47,7 +54,7 @@ import code.name.monkey.retromusic.transform.VerticalFlipTransformation;
 import code.name.monkey.retromusic.transform.VerticalStackTransformer;
 
 public final class PreferenceUtil {
-
+    public static final String LIBRARY_CATEGORIES = "library_categories";
     public static final String KEEP_SCREEN_ON = "keep_screen_on";
     public static final String TOGGLE_HOME_BANNER = "toggle_home_banner";
     public static final String NOW_PLAYING_SCREEN_ID = "now_playing_screen_id";
@@ -812,4 +819,44 @@ public final class PreferenceUtil {
     public boolean isClickOrSave() {
         return mPreferences.getBoolean(NOW_PLAYING_SCREEN, false);
     }
+
+    @NonNull
+    public List<CategoryInfo> getLibraryCategoryInfos() {
+        String data = mPreferences.getString(LIBRARY_CATEGORIES, null);
+        if (data != null) {
+            Gson gson = new Gson();
+            Type collectionType = new TypeToken<List<CategoryInfo>>() {
+            }.getType();
+
+            try {
+                return gson.fromJson(data, collectionType);
+            } catch (JsonSyntaxException e) {
+                e.printStackTrace();
+            }
+        }
+
+        return getDefaultLibraryCategoryInfos();
+    }
+
+    public void setLibraryCategoryInfos(List<CategoryInfo> categories) {
+        Gson gson = new Gson();
+        Type collectionType = new TypeToken<List<CategoryInfo>>() {
+        }.getType();
+
+        final SharedPreferences.Editor editor = mPreferences.edit();
+        editor.putString(LIBRARY_CATEGORIES, gson.toJson(categories, collectionType));
+        editor.apply();
+    }
+
+    @NonNull
+    public List<CategoryInfo> getDefaultLibraryCategoryInfos() {
+        List<CategoryInfo> defaultCategoryInfos = new ArrayList<>(6);
+        defaultCategoryInfos.add(new CategoryInfo(CategoryInfo.Category.HOME, true));
+        defaultCategoryInfos.add(new CategoryInfo(CategoryInfo.Category.SONGS, true));
+        defaultCategoryInfos.add(new CategoryInfo(CategoryInfo.Category.ALBUMS, true));
+        defaultCategoryInfos.add(new CategoryInfo(CategoryInfo.Category.ARTISTS, true));
+        defaultCategoryInfos.add(new CategoryInfo(CategoryInfo.Category.PLAYLISTS, true));
+        defaultCategoryInfos.add(new CategoryInfo(CategoryInfo.Category.GENRES, false));
+        return defaultCategoryInfos;
+    }
 }

app/src/main/java/code/name/monkey/retromusic/util/RetroColorUtil.java

@@ -195,6 +195,13 @@ public class RetroColorUtil {
         return backgroundColor;
     }
 
+    @ColorInt
+    public static int shiftBackgroundColorForDarkText(@ColorInt int backgroundColor) {
+        while (!ColorUtil.INSTANCE.isColorLight(backgroundColor)) {
+            backgroundColor = ColorUtil.INSTANCE.lightenColor(backgroundColor);
+        }
+        return backgroundColor;
+    }
 
     private static class SwatchComparator implements Comparator<Palette.Swatch> {
 

app/src/main/java/code/name/monkey/retromusic/util/SwipeAndDragHelper.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2019 Hemanth Savarala.
+ *
+ * Licensed under the GNU General Public License v3
+ *
+ * This is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by
+ *  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ */
+
+package code.name.monkey.retromusic.util;
+
+import android.graphics.Canvas;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.recyclerview.widget.ItemTouchHelper;
+
+public class SwipeAndDragHelper extends ItemTouchHelper.Callback {
+
+    private ActionCompletionContract contract;
+
+    public SwipeAndDragHelper(ActionCompletionContract contract) {
+        this.contract = contract;
+    }
+
+    @Override
+    public int getMovementFlags(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
+        int dragFlags = ItemTouchHelper.UP | ItemTouchHelper.DOWN;
+        return makeMovementFlags(dragFlags, 0);
+    }
+
+    @Override
+    public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
+        contract.onViewMoved(viewHolder.getAdapterPosition(), target.getAdapterPosition());
+        return true;
+    }
+
+    @Override
+    public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {
+    }
+
+    @Override
+    public boolean isLongPressDragEnabled() {
+        return false;
+    }
+
+    @Override
+    public void onChildDraw(Canvas c,
+                            RecyclerView recyclerView,
+                            RecyclerView.ViewHolder viewHolder,
+                            float dX,
+                            float dY,
+                            int actionState,
+                            boolean isCurrentlyActive) {
+        if (actionState == ItemTouchHelper.ACTION_STATE_SWIPE) {
+            float alpha = 1 - (Math.abs(dX) / recyclerView.getWidth());
+            viewHolder.itemView.setAlpha(alpha);
+        }
+        super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive);
+    }
+
+    public interface ActionCompletionContract {
+        void onViewMoved(int oldPosition, int newPosition);
+    }
+
+}
+

app/src/main/res/drawable/ic_guitar_acoustic_white_24dp.xml

@@ -1,10 +1,17 @@
-<!-- drawable/guitar_acoustic.xml -->
+<?xml version="1.0" encoding="utf-8"?>
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="24dp"
     android:height="24dp"
-    android:viewportWidth="24"
+    android:viewportWidth="511.999"
-    android:viewportHeight="24">
+    android:viewportHeight="511.999">
+
     <path
         android:fillColor="@color/md_white_1000"
-        android:pathData="M19.59,3H22V5H20.41L16.17,9.24C15.8,8.68 15.32,8.2 14.76,7.83L19.59,3M12,8A4,4 0 0,1 16,12C16,13.82 14.77,15.42 13,15.87V16A5,5 0 0,1 8,21A5,5 0 0,1 3,16A5,5 0 0,1 8,11H8.13C8.58,9.24 10.17,8 12,8M12,10.5A1.5,1.5 0 0,0 10.5,12A1.5,1.5 0 0,0 12,13.5A1.5,1.5 0 0,0 13.5,12A1.5,1.5 0 0,0 12,10.5M6.94,14.24L6.23,14.94L9.06,17.77L9.77,17.06L6.94,14.24Z" />
+        android:pathData="M276.503 421.573c5.687-26.889 21.401-49.915 44.245-64.834 19.137-12.495 30.74-29.04 33.555-47.846 3.149-21.04-4.592-44.418-23.022-69.629l64.952-64.949-58.682-58.682-65.311 65.315c-24.124-16.967-46.712-24.068-67.286-21.117-18.947 2.72-35.843 14.104-48.864 32.926-15.481 22.39-38.441 37.471-64.657 42.467-25.764 4.921-43.684 12.515-54.784 23.212-23.097 22.258-36.062 54.037-36.506 89.484-0.53 42.25 16.932 85.486 46.71 115.656 29.794 30.185 72.705 48.286 114.787 48.421 0.162 0.001 0.318 0 0.48 0 35.187-0.001 67.001-12.443 89.616-35.062 11.137-11.137 19.239-29.245 24.767-55.362zm-127.857 1.924c-3.839 0-7.678-1.464-10.607-4.393l-45.276-45.276c-5.858-5.858-5.858-15.355 0-21.213 5.857-5.858 15.355-5.858 21.213 0l45.276 45.276c5.858 5.858 5.858 15.355 0 21.213-2.929 2.929-6.768 4.393-10.606 4.393zm64.261-74.466c-12.827 0-25.653-4.88-35.422-14.641-19.529-19.544-19.527-51.322-0.004-70.847 8.539-8.539 19.875-13.705 31.921-14.547 14.474-1.02 28.658 4.281 38.923 14.547 10.266 10.265 15.567 24.455 14.546 38.932-0.834 12.032-5.999 23.364-14.547 31.911-9.762 9.763-22.59 14.645-35.417 14.645z" />
+    <path
+        android:fillColor="@color/md_white_1000"
+        android:pathData="M359.067 40.306c-5.858 5.858-5.858 15.355 0 21.213l15.16 15.16-15.485 17.719 58.728 58.728 17.719-15.485 15.159 15.159c2.929 2.929 6.768 4.394 10.607 4.393 3.839 0 7.678-1.464 10.606-4.393 5.858-5.858 5.858-15.355 0-21.213l-13.732-13.732 11.057-9.663 13.036 13.036c2.929 2.929 6.768 4.394 10.607 4.393 3.839 0 7.678-1.464 10.606-4.393 5.858-5.858 5.858-15.355 0-21.213l-11.609-11.609 15.213-13.295c3.127-2.733 4.981-6.64 5.121-10.79 0.139 -4.151-1.448-8.174-4.385-11.11l-48.818-48.818c-2.936-2.937-6.943-4.52-11.11-4.385-4.15 0.14 -8.057 1.994-10.79 5.121l-13.295 15.213-11.609-11.609c-5.858-5.858-15.356-5.858-21.213 0-5.858 5.858-5.858 15.355 0 21.213l13.036 13.036-9.663 11.057-13.733-13.733c-5.858-5.859-15.356-5.859-21.213 0z" />
+    <path
+        android:fillColor="@color/md_white_1000"
+        android:pathData="M232.945 300.364c0.332-4.714-1.009-9.354-3.732-13.136-0.628-0.873-1.33-1.7-2.102-2.472-3.781-3.782-8.89-5.884-14.193-5.884-0.47 0-0.941 0.017 -1.414 0.05 -4.84 0.338 -9.386 2.41-12.81 5.833-7.831 7.832-7.829 20.582 0.004 28.421 7.832 7.826 20.581 7.828 28.413-0.004 3.431-3.43 5.502-7.969 5.832-12.782 0.001 -0.008 0.002 -0.017 0.002 -0.026z" />
 </vector>

app/src/main/res/drawable/ic_guitar_white_24dp.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="512"
+    android:viewportHeight="512">
+
+    <path
+        android:fillColor="@color/md_white_1000"
+        android:pathData="M511.861 64.321c0.139-4.151-1.448-8.174-4.385-11.11l-48.817-48.818c-2.936-2.937-6.943-4.521-11.11-4.385-4.15 0.14 -8.058 1.994-10.791 5.121l-13.295 15.213-11.608-11.609c-5.857-5.858-15.355-5.858-21.213 0s-5.858 15.355 0 21.213l13.036 13.036-9.663 11.057-13.733-13.733c-5.857-5.858-15.355-5.858-21.213 0s-5.858 15.355 0 21.213l15.16 15.16-102.024 104.305c-22.898-16.082-44.302-23.315-63.925-21.541-20.337 1.838-38.384 13.358-52.188 33.316-15.486 22.389-38.447 37.472-64.653 42.47-25.751 4.912-43.671 12.503-54.782 23.208-23.1 22.254-36.067 54.03-36.514 89.476-0.533 42.25 16.928 85.488 46.708 115.66 29.792 30.185 72.7 48.289 114.779 48.426 0.165 0 0.327 0.001 0.49 0.001 35.188 0 66.999-12.441 89.618-35.06 11.143-11.143 19.245-29.252 24.77-55.363 5.69-26.892 21.404-49.917 44.248-64.835 20.106-13.129 31.83-30.629 33.904-50.607 2.139-20.603-5.537-42.685-23.346-66.899l103.876-101.595 15.16 15.159c2.929 2.929 6.768 4.394 10.606 4.394s7.678-1.464 10.606-4.394c5.858-5.858 5.858-15.355 0-21.213l-13.732-13.732 11.057-9.663 13.036 13.036c2.929 2.929 6.768 4.394 10.606 4.394s7.678-1.464 10.606-4.394c5.858-5.858 5.858-15.355 0-21.213l-11.609-11.609 15.213-13.295c3.128-2.733 4.982-6.64 5.122-10.79zm-187.042 238.716c-1.125 10.834-8.011 20.452-20.468 28.587-29.538 19.289-49.85 49.029-57.195 83.743-5.54 26.185-12.798 36.526-16.632 40.359-17.032 17.032-41.486 26.318-68.797 26.273-34.262-0.113-69.225-14.879-93.526-39.5-24.267-24.587-38.495-59.805-38.062-94.209 0.345 -27.364 10.051-51.602 27.331-68.249 3.767-3.629 13.918-10.448 39.588-15.344 33.986-6.481 63.713-25.969 83.705-54.872 8.701-12.58 18.868-19.479 30.216-20.504 1.046-0.094 2.111-0.142 3.193-0.142 10.609 0 22.904 4.54 36.463 13.373l-47.245 47.245c-9.497 1.824-18.565 6.404-25.904 13.742-19.531 19.531-19.531 51.311 0 70.841 9.766 9.766 22.593 14.648 35.421 14.648s25.655-4.883 35.421-14.648c7.338-7.339 11.918-16.406 13.742-25.904l47.701-47.701c11.128 16.162 16.272 30.472 15.048 42.262zm-97.704-18.283c7.834 7.834 7.834 20.582 0 28.416-7.835 7.834-20.581 7.834-28.416 0-7.834-7.834-7.834-20.581 0-28.416 3.918-3.917 9.062-5.875 14.208-5.875 5.145-0.001 10.291 1.958 14.208 5.875zm28.388-12.135c-1.996-3.227-4.378-6.282-7.175-9.078-2.797-2.797-5.851-5.179-9.079-7.175l130.124-130.124 16.254 16.254zm152.027-150.647-17.633-17.633 58.893-67.389 26.129 26.129z" />
+    <path
+        android:fillColor="@color/md_white_1000"
+        android:pathData="M113.978 352.615c-5.857-5.858-15.355-5.858-21.213 0s-5.858 15.355 0 21.213l45.276 45.276c2.929 2.929 6.768 4.394 10.606 4.394s7.678-1.464 10.606-4.394c5.858-5.858 5.858-15.355 0-21.213z" />
+</vector>

app/src/main/res/drawable/toggle_album.xml

@@ -1,4 +1,17 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2019 Hemanth Savarala.
+  ~
+  ~ Licensed under the GNU General Public License v3
+  ~
+  ~ This is free software: you can redistribute it and/or modify it under
+  ~ the terms of the GNU General Public License as published by
+  ~  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+  ~
+  ~ This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+  ~ without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  ~ See the GNU General Public License for more details.
+  -->
+
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:drawable="@drawable/ic_album_selected_white_24dp" android:state_checked="true" />
     <item android:drawable="@drawable/ic_album_white_24dp" />

app/src/main/res/drawable/toggle_artist.xml

@@ -1,4 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) 2019 Hemanth Savarala.
+  ~
+  ~ Licensed under the GNU General Public License v3
+  ~
+  ~ This is free software: you can redistribute it and/or modify it under
+  ~ the terms of the GNU General Public License as published by
+  ~  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+  ~
+  ~ This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+  ~ without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  ~ See the GNU General Public License for more details.
+  -->
+
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:drawable="@drawable/ic_artist_selected_white_24dp" android:state_checked="true" />
     <item android:drawable="@drawable/ic_artist_white_24dp" />

app/src/main/res/drawable/toggle_audiotrack.xml

@@ -1,4 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) 2019 Hemanth Savarala.
+  ~
+  ~ Licensed under the GNU General Public License v3
+  ~
+  ~ This is free software: you can redistribute it and/or modify it under
+  ~ the terms of the GNU General Public License as published by
+  ~  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+  ~
+  ~ This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+  ~ without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  ~ See the GNU General Public License for more details.
+  -->
+
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:drawable="@drawable/ic_audiotrack_selected_black_24dp" android:state_checked="true"  />
     <item android:drawable="@drawable/ic_audiotrack_black_24dp" />

app/src/main/res/drawable/toggle_guitar.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2019 Hemanth Savarala.
+  ~
+  ~ Licensed under the GNU General Public License v3
+  ~
+  ~ This is free software: you can redistribute it and/or modify it under
+  ~ the terms of the GNU General Public License as published by
+  ~  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+  ~
+  ~ This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+  ~ without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  ~ See the GNU General Public License for more details.
+  -->
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@drawable/ic_guitar_acoustic_white_24dp" android:state_checked="true" />
+    <item android:drawable="@drawable/ic_guitar_white_24dp" />
+</selector>

app/src/main/res/drawable/toggle_home.xml

@@ -1,4 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) 2019 Hemanth Savarala.
+  ~
+  ~ Licensed under the GNU General Public License v3
+  ~
+  ~ This is free software: you can redistribute it and/or modify it under
+  ~ the terms of the GNU General Public License as published by
+  ~  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+  ~
+  ~ This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+  ~ without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  ~ See the GNU General Public License for more details.
+  -->
+
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:drawable="@drawable/ic_home_selected_white_24dp" android:state_checked="true" />
     <item android:drawable="@drawable/ic_home_white_24dp" />

app/src/main/res/drawable/toggle_queue_music.xml

@@ -1,4 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) 2019 Hemanth Savarala.
+  ~
+  ~ Licensed under the GNU General Public License v3
+  ~
+  ~ This is free software: you can redistribute it and/or modify it under
+  ~ the terms of the GNU General Public License as published by
+  ~  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+  ~
+  ~ This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+  ~ without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  ~ See the GNU General Public License for more details.
+  -->
+
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:drawable="@drawable/ic_queue_music_selected_white_24dp" android:state_checked="true" />
     <item android:drawable="@drawable/ic_queue_music_white_24dp" />

app/src/main/res/layout/fragment_library.xml

@@ -50,12 +50,13 @@
                         android:id="@+id/toolbar"
                         style="@style/Toolbar"
                         app:titleMarginStart="0dp"
+                        app:title="@string/library"
                         tools:ignore="UnusedAttribute" />
 
                     <ViewStub
                         android:id="@+id/cab_stub"
                         android:layout_width="match_parent"
-                        android:layout_height="match_parent" />
+                        android:layout_height="48dp" />
                 </FrameLayout>
             </com.google.android.material.card.MaterialCardView>
         </com.google.android.material.appbar.AppBarLayout>

app/src/main/res/layout/item_list_no_image.xml

@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2019 Hemanth Savarala.
+  ~
+  ~ Licensed under the GNU General Public License v3
+  ~
+  ~ This is free software: you can redistribute it and/or modify it under
+  ~ the terms of the GNU General Public License as published by
+  ~  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+  ~
+  ~ This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+  ~ without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  ~ See the GNU General Public License for more details.
+  -->
+
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="72dp"
+    android:foreground="?attr/rectSelector"
+    tools:ignore="UnusedAttribute">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:descendantFocusability="blocksDescendants"
+        android:orientation="vertical"
+        android:paddingStart="16dp"
+        android:paddingLeft="16dp"
+        android:paddingEnd="16dp"
+        android:paddingRight="16dp">
+
+        <TextView
+            android:id="@+id/title"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:fontFamily="sans-serif"
+            android:singleLine="true"
+            android:textAppearance="@style/TextAppearance.AppCompat.Subhead" />
+
+        <TextView
+            android:id="@+id/text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:fontFamily="sans-serif"
+            android:singleLine="true"
+            android:textAppearance="@style/TextAppearance.AppCompat.Body1"
+            android:textColor="?android:textColorSecondary" />
+    </LinearLayout>
+
+</FrameLayout>

app/src/main/res/layout/preference_dialog_library_categories.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (c) 2019 Hemanth Savarala.
+  ~
+  ~ Licensed under the GNU General Public License v3
+  ~
+  ~ This is free software: you can redistribute it and/or modify it under
+  ~ the terms of the GNU General Public License as published by
+  ~  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+  ~
+  ~ This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+  ~ without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  ~ See the GNU General Public License for more details.
+  -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recycler_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/preference_dialog_library_categories_listitem.xml

@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (c) 2019 Hemanth Savarala.
+  ~
+  ~ Licensed under the GNU General Public License v3
+  ~
+  ~ This is free software: you can redistribute it and/or modify it under
+  ~ the terms of the GNU General Public License as published by
+  ~  the Free Software Foundation either version 3 of the License, or (at your option) any later version.
+  ~
+  ~ This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+  ~ without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  ~ See the GNU General Public License for more details.
+  -->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:descendantFocusability="blocksDescendants"
+    android:focusable="true"
+    android:foreground="?attr/rectSelector"
+    android:minHeight="@dimen/md_listitem_height"
+    android:orientation="horizontal"
+    android:paddingStart="16dp"
+    android:paddingLeft="16dp"
+    android:paddingEnd="16dp"
+    android:paddingRight="16dp"
+    tools:gravity="start|center_vertical">
+
+    <code.name.monkey.appthemehelper.common.views.ATECheckBox
+        android:id="@+id/checkbox"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:background="@null"
+        android:clickable="false"
+        android:focusable="false"
+        android:gravity="center_vertical" />
+
+    <TextView
+        android:id="@+id/title"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:layout_weight="1"
+        android:ellipsize="end"
+        android:gravity="center_vertical"
+        android:minHeight="@dimen/md_listitem_height"
+        android:paddingStart="@dimen/md_listitem_control_margin"
+        android:paddingLeft="@dimen/md_listitem_control_margin"
+        android:paddingTop="@dimen/md_listitem_vertical_margin_choice"
+        android:paddingBottom="@dimen/md_listitem_vertical_margin_choice"
+        android:singleLine="true"
+        android:textSize="@dimen/md_listitem_textsize"
+        tools:text="Item" />
+
+    <code.name.monkey.retromusic.views.IconImageView
+        android:id="@+id/drag_view"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:layout_gravity="end|center_vertical"
+        android:clickable="false"
+        android:focusable="false"
+        android:minHeight="@dimen/md_listitem_height"
+        android:tint="?attr/iconColor"
+        android:tintMode="src_in"
+        app:srcCompat="@drawable/ic_drag_vertical_white_24dp"
+        tools:ignore="ContentDescription" />
+
+</LinearLayout>

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

@@ -2,8 +2,7 @@
 <resources>
     <item name="action_new_playlist" type="id" />
     <item name="action_show_lyrics" type="id" />
-
+    <item name="action_genre" type="id" />
-
     <item name="action_album_sort_order_asc" type="id" />
     <item name="action_album_sort_order_desc" type="id" />
     <item name="action_album_sort_order_artist" type="id" />
@@ -17,7 +16,6 @@
     <item name="action_song_sort_order_year" type="id" />
     <item name="action_song_sort_order_date" type="id" />
     <item name="action_song_sort_order_composer" type="id" />
-
     <item name="action_multi_select_adapter_check_all" type="id" />
     <item name="action_folder" type="id" />
 </resources>

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

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <resources>
+    <string name="you_have_to_select_at_least_one_category">You have to select at least one category.</string>
     <string name="small">Small album</string>
     <string name="accent_color">Accent color</string>
     <string name="accent_color_desc">The theme accent color, defaults to teal</string>
@@ -601,6 +602,7 @@
     <string name="pick_image_intent_text">Pick image</string>
     <string name="set_photo">Set a profile photo</string>
     <string name="edit">Edit</string>
+    <string name="pref_header_library">Library</string>
     <string name="swipe_to_unlock">Swipe to unlock</string>
     <string name="add_lyrics">Add lyrics</string>
     <string name="paste_lyrics_here">Paste lyrics here</string>
@@ -625,4 +627,7 @@
     <string name="action_play_all">Play all</string>
     <string name="start_play_music">Start playing music.</string>
     <string name="keyboard">Keyboard</string>
+    <string name="reset_action">Reset</string>
+    <string name="library_categories">Library categories</string>
+    <string name="pref_summary_library_categories">Configure visibility and order of library categories.</string>
 </resources>

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

@@ -28,7 +28,7 @@
 
     <style name="Toolbar">
         <item name="android:layout_width">match_parent</item>
-        <item name="android:layout_height">50dp</item>
+        <item name="android:layout_height">48dp</item>
         <item name="popupTheme">?toolbarPopupTheme</item>
         <item name="android:transitionName" tools:ignore="NewApi">toolbar</item>
         <item name="android:titleTextAppearance">@style/ToolbarTextAppearance</item>

app/src/main/res/xml/pref_ui.xml

@@ -37,6 +37,21 @@
             app:enableCopying="true"
             app:icon="@drawable/ic_home_white_24dp" />
 
+        <code.name.monkey.appthemehelper.common.prefs.supportv7.ATESwitchPreference
+            android:defaultValue="false"
+            android:key="toggle_home_banner"
+            android:summary="@string/pref_summary_home_banner"
+            android:title="@string/pref_title_home_banner" />
+
+        <code.name.monkey.appthemehelper.common.prefs.supportv7.ATEPreferenceCategory android:title="@string/pref_header_library">
+
+            <code.name.monkey.retromusic.preferences.LibraryPreference
+                android:key="library_categories"
+                android:summary="@string/pref_summary_library_categories"
+                android:title="@string/library_categories"
+                app:enableCopying="true"
+                app:icon="@drawable/ic_library_music_white_24dp" />
+
             <code.name.monkey.retromusic.preferences.MaterialListPreference
                 android:defaultValue="0"
                 android:entries="@array/pref_tab_text_mode_titles"
@@ -46,19 +61,8 @@
                 android:positiveButtonText="@null"
                 android:title="@string/pref_title_tab_text_mode"
                 app:enableCopying="true" />
+        </code.name.monkey.appthemehelper.common.prefs.supportv7.ATEPreferenceCategory>
 
-        <code.name.monkey.appthemehelper.common.prefs.supportv7.ATESwitchPreference
-            android:defaultValue="false"
-            android:key="toggle_home_banner"
-            android:summary="@string/pref_summary_home_banner"
-            android:title="@string/pref_title_home_banner" />
 
-        <code.name.monkey.appthemehelper.common.prefs.supportv7.ATESwitchPreference
-            android:defaultValue="false"
-            android:key="toggle_genre"
-            android:summary="@string/pref_summary_genre_toggle"
-            android:title="@string/pref_title_genre_toggle"
-            app:enableCopying="true"
-            app:icon="@drawable/ic_guitar_acoustic_white_24dp" />
     </code.name.monkey.appthemehelper.common.prefs.supportv7.ATEPreferenceCategory>
 </androidx.preference.PreferenceScreen>