Added download UI in home screen

app/src/main/java/com/cappielloantonio/play/database/dao/SongDao.java

@@ -67,6 +67,12 @@ public interface SongDao {
     @Query("SELECT * FROM song WHERE favorite = 1")
     LiveData<List<Song>> getFavoriteSong();
 
+    @Query("SELECT * FROM song WHERE offline = 1 ORDER BY RANDOM() LIMIT :number")
+    LiveData<List<Song>> getDownloadedSongSample(int number);
+
+    @Query("SELECT * FROM song WHERE offline = 1")
+    LiveData<List<Song>> getDownloadedSong();
+
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     void insertAll(List<Song> songs);
 

app/src/main/java/com/cappielloantonio/play/model/Song.java

@@ -48,6 +48,9 @@ public class Song implements Parcelable {
     @Ignore
     public static final String IS_FAVORITE = "IS_FAVORITE";
 
+    @Ignore
+    public static final String DOWNLOADED = "DOWNLOADED";
+
     @Ignore
     public static final String RADIO = "RADIO";
 

app/src/main/java/com/cappielloantonio/play/repository/SongRepository.java

@@ -1,7 +1,6 @@
 package com.cappielloantonio.play.repository;
 
 import android.app.Application;
-import android.util.Log;
 
 import androidx.lifecycle.LiveData;
 
@@ -33,6 +32,8 @@ public class SongRepository {
     private LiveData<List<Song>> listLiveSongByYear;
     private LiveData<List<Song>> listLiveSampleFavoritesSong;
     private LiveData<List<Song>> listLiveFavoritesSong;
+    private LiveData<List<Song>> listLiveSampleDownloadedSong;
+    private LiveData<List<Song>> listLiveDownloadedSong;
 
     public SongRepository(Application application) {
         AppDatabase database = AppDatabase.getInstance(application);
@@ -314,6 +315,16 @@ public class SongRepository {
         return listLiveFavoritesSong;
     }
 
+    public LiveData<List<Song>> getListLiveDownloadedSampleSong(int number) {
+        listLiveSampleDownloadedSong = songDao.getDownloadedSongSample(number);
+        return listLiveSampleDownloadedSong;
+    }
+
+    public LiveData<List<Song>> getListLiveDownloadedSong() {
+        listLiveDownloadedSong = songDao.getDownloadedSong();
+        return listLiveDownloadedSong;
+    }
+
     public void insertAll(ArrayList<Song> songs) {
         InsertAllThreadSafe insertAll = new InsertAllThreadSafe(songDao, songGenreCrossDao, songs);
         Thread thread = new Thread(insertAll);

app/src/main/java/com/cappielloantonio/play/ui/fragment/HomeFragment.java

@@ -42,6 +42,7 @@ public class HomeFragment extends Fragment {
     private SongResultSearchAdapter favoriteSongAdapter;
     private RecentMusicAdapter recentlyPlayedMusicAdapter;
     private RecentMusicAdapter mostPlayedMusicAdapter;
+    private RecentMusicAdapter dowanloadedMusicAdapter;
 
     @Nullable
     @Override
@@ -67,6 +68,7 @@ public class HomeFragment extends Fragment {
         initFavoritesSongView();
         initYearSongView();
         initRecentAddedSongView();
+        initDownloadedSongView();
     }
 
     @Override
@@ -106,6 +108,12 @@ public class HomeFragment extends Fragment {
             bundle.putString(Song.IS_FAVORITE, Song.IS_FAVORITE);
             activity.navController.navigate(R.id.action_homeFragment_to_songListPageFragment, bundle);
         });
+
+        bind.downloadedTracksTextViewClickable.setOnClickListener(v -> {
+            Bundle bundle = new Bundle();
+            bundle.putString(Song.DOWNLOADED, Song.DOWNLOADED);
+            activity.navController.navigate(R.id.action_homeFragment_to_songListPageFragment, bundle);
+        });
     }
 
     private void initDiscoverSongSlideView() {
@@ -180,6 +188,18 @@ public class HomeFragment extends Fragment {
         homeViewModel.getRecentlyAddedSongList().observe(requireActivity(), songs -> recentlyAddedMusicAdapter.setItems(songs));
     }
 
+    private void initDownloadedSongView() {
+        bind.downloadedTracksRecyclerView.setLayoutManager(new LinearLayoutManager(requireContext(), LinearLayoutManager.HORIZONTAL, false));
+        bind.downloadedTracksRecyclerView.setHasFixedSize(true);
+
+        dowanloadedMusicAdapter = new RecentMusicAdapter(activity, requireContext(), getChildFragmentManager());
+        bind.downloadedTracksRecyclerView.setAdapter(dowanloadedMusicAdapter);
+        homeViewModel.getDownloaded().observe(requireActivity(), songs -> {
+            if(bind != null) bind.homeDownloadedTracksSector.setVisibility(!songs.isEmpty() ? View.VISIBLE : View.GONE);
+            dowanloadedMusicAdapter.setItems(songs);
+        });
+    }
+
     private void setDiscoverSongSlideViewOffset(float pageOffset, float pageMargin) {
         bind.discoverSongViewPager.setPageTransformer((page, position) -> {
             float myOffset = position * -(2 * pageOffset + pageMargin);
@@ -197,10 +217,10 @@ public class HomeFragment extends Fragment {
 
     /*
      * Il layout di default prevede questa sequenza:
-     * - Discovery - Most_played - Last_played - Year - Favorite - Recently_added
+     * - Discovery - Most_played - Last_played - Year - Favorite - Downloaded - Recently_added
      *
      * Se però non ho ancora ascoltato nessuna canzone e quindi Most_played e Last_played sono vuoti, modifico come segue
-     * - Discovery - Recently_added - Year - Favorite - Most_played - Last_played
+     * - Discovery - Recently_added - Year - Favorite - Downloaded - Most_played - Last_played
      */
     public void reorder() {
         if(bind != null) {
@@ -209,6 +229,7 @@ public class HomeFragment extends Fragment {
             bind.homeLinearLayoutContainer.addView(bind.homeRecentlyAddedTracksSector);
             bind.homeLinearLayoutContainer.addView(bind.homeFlashbackSector);
             bind.homeLinearLayoutContainer.addView(bind.homeFavoriteTracksSector);
+            bind.homeLinearLayoutContainer.addView(bind.homeDownloadedTracksSector);
             bind.homeLinearLayoutContainer.addView(bind.homeMostPlayedTracksSector);
             bind.homeLinearLayoutContainer.addView(bind.homeRecentlyPlayedTracksSector);
         }

app/src/main/java/com/cappielloantonio/play/ui/fragment/SongListPageFragment.java

@@ -89,6 +89,10 @@ public class SongListPageFragment extends Fragment {
             songListPageViewModel.title = Song.IS_FAVORITE;
             bind.pageTitleLabel.setText("Favourite song");
         }
+        else if(getArguments().getString(Song.DOWNLOADED) != null) {
+            songListPageViewModel.title = Song.DOWNLOADED;
+            bind.pageTitleLabel.setText("Downloaded");
+        }
         else if(getArguments().getString(Song.RADIO) != null) {
             songListPageViewModel.title = Song.IS_FAVORITE;
             songListPageViewModel.year = getArguments().getInt("radio_object");

app/src/main/java/com/cappielloantonio/play/viewmodel/HomeViewModel.java

@@ -20,6 +20,7 @@ public class HomeViewModel extends AndroidViewModel {
     private LiveData<List<Song>> recentlyAddedSongSample;
     private LiveData<List<Song>> mostPlayedSongSample;
     private LiveData<List<Song>> favoritesSongSample;
+    private LiveData<List<Song>> downloadedSongSample;
     private List<Integer> years;
 
     public HomeViewModel(@NonNull Application application) {
@@ -32,6 +33,7 @@ public class HomeViewModel extends AndroidViewModel {
         recentlyAddedSongSample = songRepository.getListLiveRecentlyAddedSampleSong(20);
         mostPlayedSongSample = songRepository.getListLiveMostPlayedSampleSong(20);
         favoritesSongSample = songRepository.getListLiveFavoritesSampleSong(20);
+        downloadedSongSample = songRepository.getListLiveDownloadedSampleSong(20);
         years = songRepository.getYearList();
     }
 
@@ -63,4 +65,8 @@ public class HomeViewModel extends AndroidViewModel {
     public LiveData<List<Song>> getFavorites() {
         return favoritesSongSample;
     }
+
+    public LiveData<List<Song>> getDownloaded() {
+        return downloadedSongSample;
+    }
 }

app/src/main/java/com/cappielloantonio/play/viewmodel/SongListPageViewModel.java

@@ -59,6 +59,9 @@ public class SongListPageViewModel extends AndroidViewModel {
             case Song.IS_FAVORITE:
                 songList = songRepository.getListLiveFavoritesSong();
                 break;
+            case Song.DOWNLOADED:
+                songList = songRepository.getListLiveDownloadedSong();
+                break;
         }
 
         return songList;

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

@@ -222,6 +222,58 @@
                 android:paddingBottom="8dp" />
         </LinearLayout>
 
+        <!--  Downloaded tracks -->
+        <LinearLayout
+            android:id="@+id/home_downloaded_tracks_sector"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical">
+
+            <!--  Label and button  -->
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal"
+                android:paddingStart="8dp"
+                android:paddingTop="8dp"
+                android:paddingEnd="8dp">
+
+                <TextView
+                    style="@style/HeadlineTextView"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:paddingStart="8dp"
+                    android:paddingTop="12dp"
+                    android:paddingEnd="8dp"
+                    android:text="Downloaded" />
+
+
+                <TextView
+                    android:id="@+id/downloaded_tracks_text_view_clickable"
+                    style="@style/SubheadTextView"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:paddingStart="8dp"
+                    android:paddingTop="12dp"
+                    android:paddingEnd="8dp"
+                    android:text="See all" />
+
+            </LinearLayout>
+
+            <androidx.recyclerview.widget.RecyclerView
+                android:id="@+id/downloaded_tracks_recycler_view"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="8dp"
+                android:layout_marginBottom="8dp"
+                android:clipToPadding="false"
+                android:paddingStart="16dp"
+                android:paddingTop="8dp"
+                android:paddingEnd="8dp"
+                android:paddingBottom="8dp" />
+        </LinearLayout>
+
         <!--  Recently added tracks -->
         <LinearLayout
             android:id="@+id/home_recently_added_tracks_sector"