From 93e7550e7429ec1b93216098de051a88843618fc Mon Sep 17 00:00:00 2001
From: CappielloAntonio <antoniocappiello.play@gmail.com>
Date: Mon, 19 Apr 2021 17:16:05 +0200
Subject: [PATCH] Hide sector in home and library if there are no elements to
 show

---
 .../play/ui/fragment/HomeFragment.java            | 15 ++++++++++++---
 .../play/ui/fragment/LibraryFragment.java         |  5 ++++-
 app/src/main/res/layout/fragment_home.xml         |  5 +++++
 app/src/main/res/layout/fragment_library.xml      |  1 +
 4 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/com/cappielloantonio/play/ui/fragment/HomeFragment.java b/app/src/main/java/com/cappielloantonio/play/ui/fragment/HomeFragment.java
index fdf7d358..cc58578a 100644
--- a/app/src/main/java/com/cappielloantonio/play/ui/fragment/HomeFragment.java
+++ b/app/src/main/java/com/cappielloantonio/play/ui/fragment/HomeFragment.java
@@ -138,7 +138,10 @@ public class HomeFragment extends Fragment {
 
         favoriteSongAdapter = new SongResultSearchAdapter(activity, requireContext(), getChildFragmentManager());
         bind.favoritesTracksRecyclerView.setAdapter(favoriteSongAdapter);
-        homeViewModel.getFavorites().observe(requireActivity(), songs -> favoriteSongAdapter.setItems(songs));
+        homeViewModel.getFavorites().observe(requireActivity(), songs -> {
+            bind.homeFavoriteTracksSector.setVisibility(songs.size() > 0 ? View.VISIBLE : View.GONE);
+            favoriteSongAdapter.setItems(songs);
+        });
 
         PagerSnapHelper pagerSnapHelper = new PagerSnapHelper();
         pagerSnapHelper.attachToRecyclerView(bind.favoritesTracksRecyclerView);
@@ -150,7 +153,10 @@ public class HomeFragment extends Fragment {
 
         mostPlayedMusicAdapter = new RecentMusicAdapter(activity, requireContext(), getChildFragmentManager());
         bind.mostPlayedTracksRecyclerView.setAdapter(mostPlayedMusicAdapter);
-        homeViewModel.getMostPlayedSongList().observe(requireActivity(), songs -> mostPlayedMusicAdapter.setItems(songs));
+        homeViewModel.getMostPlayedSongList().observe(requireActivity(), songs -> {
+            bind.homeMostPlayedTracksSector.setVisibility(songs.size() > 0 ? View.VISIBLE : View.GONE);
+            mostPlayedMusicAdapter.setItems(songs);
+        });
     }
 
     private void initRecentPlayedSongView() {
@@ -159,7 +165,10 @@ public class HomeFragment extends Fragment {
 
         recentlyPlayedMusicAdapter = new RecentMusicAdapter(activity, requireContext(), getChildFragmentManager());
         bind.recentlyPlayedTracksRecyclerView.setAdapter(recentlyPlayedMusicAdapter);
-        homeViewModel.getRecentlyPlayedSongList().observe(requireActivity(), songs -> recentlyPlayedMusicAdapter.setItems(songs));
+        homeViewModel.getRecentlyPlayedSongList().observe(requireActivity(), songs -> {
+            bind.homeRecentlyPlayedTracksSector.setVisibility(songs.size() > 0 ? View.VISIBLE : View.GONE);
+            recentlyPlayedMusicAdapter.setItems(songs);
+        });
     }
 
     private void setDiscoverSongSlideViewOffset(float pageOffset, float pageMargin) {
diff --git a/app/src/main/java/com/cappielloantonio/play/ui/fragment/LibraryFragment.java b/app/src/main/java/com/cappielloantonio/play/ui/fragment/LibraryFragment.java
index 7b0472eb..79b16e39 100644
--- a/app/src/main/java/com/cappielloantonio/play/ui/fragment/LibraryFragment.java
+++ b/app/src/main/java/com/cappielloantonio/play/ui/fragment/LibraryFragment.java
@@ -113,7 +113,10 @@ public class LibraryFragment extends Fragment {
 
         playlistAdapter = new PlaylistAdapter(requireContext());
         bind.playlistRecyclerView.setAdapter(playlistAdapter);
-        libraryViewModel.getPlaylistList().observe(requireActivity(), playlists -> playlistAdapter.setItems(playlists));
+        libraryViewModel.getPlaylistList().observe(requireActivity(), playlists -> {
+            bind.libraryPlaylistSector.setVisibility(playlists.size() > 0 ? View.VISIBLE : View.GONE);
+            playlistAdapter.setItems(playlists);
+        });
     }
 
     private void initCatalogueSyncCheck() {
diff --git a/app/src/main/res/layout/fragment_home.xml b/app/src/main/res/layout/fragment_home.xml
index b5934c32..d98c5134 100644
--- a/app/src/main/res/layout/fragment_home.xml
+++ b/app/src/main/res/layout/fragment_home.xml
@@ -42,6 +42,7 @@
 
         <!--  Recently added tracks -->
         <LinearLayout
+            android:id="@+id/home_recently_added_tracks_sector"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:orientation="vertical">
@@ -98,6 +99,7 @@
 
         <!-- Fashback -->
         <LinearLayout
+            android:id="@+id/home_flashback_sector"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:orientation="vertical">
@@ -130,6 +132,7 @@
 
         <!-- Favorites -->
         <LinearLayout
+            android:id="@+id/home_favorite_tracks_sector"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:orientation="vertical">
@@ -184,6 +187,7 @@
 
         <!--  Most played tracks -->
         <LinearLayout
+            android:id="@+id/home_most_played_tracks_sector"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:orientation="vertical">
@@ -240,6 +244,7 @@
 
         <!--  Recently played tracks -->
         <LinearLayout
+            android:id="@+id/home_recently_played_tracks_sector"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:orientation="vertical">
diff --git a/app/src/main/res/layout/fragment_library.xml b/app/src/main/res/layout/fragment_library.xml
index da765d7b..d06fcbe1 100644
--- a/app/src/main/res/layout/fragment_library.xml
+++ b/app/src/main/res/layout/fragment_library.xml
@@ -201,6 +201,7 @@
         </LinearLayout>
 
         <LinearLayout
+            android:id="@+id/library_playlist_sector"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:orientation="vertical"