added scroll helper to main activity

app/build.gradle

@@ -176,6 +176,8 @@ dependencies {
 
     implementation 'com.github.AdrienPoupa:jaudiotagger:2.2.3'
 
+    implementation 'com.github.ologe:scroll-helper:2.0.0-beta01'
+
     implementation 'com.anjlab.android.iab.v3:library:1.1.0'
     implementation 'com.r0adkll:slidableactivity:2.1.0'
     implementation 'com.heinrichreimersoftware:material-intro:1.6'

app/src/main/java/code/name/monkey/retromusic/RetroScrollHelper.kt

@@ -0,0 +1,67 @@
+package code.name.monkey.retromusic
+
+import android.view.View
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentActivity
+import androidx.recyclerview.widget.RecyclerView
+import androidx.viewpager2.widget.ViewPager2
+import code.name.monkey.retromusic.fragments.player.normal.PlayerFragment
+import dev.olog.scrollhelper.ScrollHelper
+
+class RetroScrollHelper(
+    private val activity: FragmentActivity
+) : ScrollHelper(activity,
+    true,
+    false // TODO when true, scrolls both bottomsheet and bottom navigation
+) {
+
+    private val skipFragment = listOf(
+        PlayerFragment::class.java.name
+    )
+
+    // TODO every fragment has to have it's unique tag in order to work correctly
+    //   here you can decide what fragment will be processed by the library
+    //   probably you want to skip player fragments, ecc ..
+    override fun shouldSkipFragment(fragment: Fragment): Boolean {
+        return fragment::class.java.name in skipFragment
+    }
+
+    override fun findBottomNavigation(): View? {
+        return activity.findViewById(R.id.bottomNavigationView)
+    }
+
+    override fun findBottomSheet(): View? {
+        return activity.findViewById(R.id.slidingPanel)
+    }
+
+    override fun findFab(fragment: Fragment): View? {
+        return null
+    }
+
+    override fun findRecyclerView(fragment: Fragment): RecyclerView? {
+        return fragment.requireView().findViewById(R.id.recyclerView)
+    }
+
+    override fun findToolbar(fragment: Fragment): View? {
+        return fragment.requireActivity().findViewById(R.id.toolbarContainer)
+    }
+
+    override fun findTabLayout(fragment: Fragment): View? {
+        return null
+    }
+
+    override fun findViewPager(fragment: Fragment): ViewPager2? {
+        return null
+    }
+
+    // TODO override this if you want to apply custom padding
+    override fun updateRecyclerViewPadding(
+        fragment: Fragment,
+        recyclerView: RecyclerView,
+        topPadding: Int,
+        bottomPadding: Int
+    ) {
+        super.updateRecyclerViewPadding(fragment, recyclerView, topPadding, bottomPadding)
+    }
+
+}

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

@@ -55,6 +55,7 @@ import java.util.List;
 import code.name.monkey.appthemehelper.util.ATHUtil;
 import code.name.monkey.appthemehelper.util.ToolbarContentTintHelper;
 import code.name.monkey.retromusic.R;
+import code.name.monkey.retromusic.RetroScrollHelper;
 import code.name.monkey.retromusic.activities.base.AbsSlidingMusicPanelActivity;
 import code.name.monkey.retromusic.dialogs.CreatePlaylistDialog;
 import code.name.monkey.retromusic.fragments.base.AbsLibraryPagerRecyclerViewCustomGridSizeFragment;
@@ -83,6 +84,7 @@ import code.name.monkey.retromusic.util.NavigationUtil;
 import code.name.monkey.retromusic.util.PreferenceUtil;
 import code.name.monkey.retromusic.util.RetroColorUtil;
 import code.name.monkey.retromusic.util.RetroUtil;
+import dev.olog.scrollhelper.ScrollHelper;
 
 /**
  * Created by hemanths on 2020-02-19.
@@ -119,6 +121,9 @@ public class MainActivity extends AbsSlidingMusicPanelActivity
     private Toolbar mToolbar;
     private MaterialCardView mToolbarContainer;
 
+    @SuppressWarnings("FieldCanBeLocal")
+    private ScrollHelper scrollHelper;
+
     @Override
     protected void onCreate(@Nullable final Bundle savedInstanceState) {
         setDrawUnderStatusBar();
@@ -151,6 +156,8 @@ public class MainActivity extends AbsSlidingMusicPanelActivity
         checkShowChangelog();
         AppRater.appLaunched(this);
         setupToolbar();
+
+        scrollHelper = new RetroScrollHelper(this);
     }
 
     @Override

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

@@ -111,10 +111,14 @@ abstract class AbsSlidingMusicPanelActivity : AbsMusicServiceActivity(),
         }
     }
 
+    override fun onPause() {
+        super.onPause()
+        bottomSheetBehavior.removeBottomSheetCallback(bottomSheetCallbackList)
+    }
+
     override fun onDestroy() {
         super.onDestroy()
-        bottomSheetBehavior.removeBottomSheetCallback(bottomSheetCallbackList)
+        navigationBarColorAnimator?.cancel() // just in case
-        if (navigationBarColorAnimator != null) navigationBarColorAnimator?.cancel() // just in case
     }
 
     protected fun wrapSlidingMusicPanel(@LayoutRes resId: Int): View {
@@ -217,8 +221,8 @@ abstract class AbsSlidingMusicPanelActivity : AbsMusicServiceActivity(),
         }
     }
 
-    fun setBottomBarVisibility(gone: Int) {
+    fun setBottomBarVisibility(visibility: Int) {
-        bottomNavigationView.visibility = gone
+        bottomNavigationView.visibility = visibility
         hideBottomBar(false)
     }
 

app/src/main/java/code/name/monkey/retromusic/extensions/ContextExtensions.kt

@@ -0,0 +1,10 @@
+package code.name.monkey.retromusic.extensions
+
+import android.content.Context
+import androidx.annotation.DimenRes
+
+@Suppress("NOTHING_TO_INLINE")
+inline fun Context.dip(value: Int): Int = (value * resources.displayMetrics.density).toInt()
+
+@Suppress("NOTHING_TO_INLINE")
+inline fun Context.dimen(@DimenRes resource: Int): Int = resources.getDimensionPixelSize(resource)

app/src/main/java/code/name/monkey/retromusic/fragments/base/AbsLibraryPagerRecyclerViewFragment.kt

@@ -8,17 +8,13 @@ import androidx.annotation.NonNull
 import androidx.annotation.StringRes
 import androidx.recyclerview.widget.RecyclerView
 import code.name.monkey.retromusic.R
-import code.name.monkey.retromusic.helper.MusicPlayerRemote
-import code.name.monkey.retromusic.util.DensityUtil
 import code.name.monkey.retromusic.util.ThemedFastScroller.create
-import code.name.monkey.retromusic.views.ScrollingViewOnApplyWindowInsetsListener
-import com.google.android.material.appbar.AppBarLayout
 import kotlinx.android.synthetic.main.fragment_main_activity_recycler_view.*
 import me.zhanghai.android.fastscroll.FastScroller
 import me.zhanghai.android.fastscroll.FastScrollerBuilder
 
 abstract class AbsLibraryPagerRecyclerViewFragment<A : RecyclerView.Adapter<*>, LM : RecyclerView.LayoutManager> :
-    AbsLibraryPagerFragment(), AppBarLayout.OnOffsetChangedListener {
+    AbsLibraryPagerFragment() {
 
     protected var adapter: A? = null
     protected var layoutManager: LM? = null
@@ -31,7 +27,6 @@ abstract class AbsLibraryPagerRecyclerViewFragment<A : RecyclerView.Adapter<*>,
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-        mainActivity.addOnAppBarOffsetChangedListener(this)
         initLayoutManager()
         initAdapter()
         setUpRecyclerView()
@@ -41,13 +36,6 @@ abstract class AbsLibraryPagerRecyclerViewFragment<A : RecyclerView.Adapter<*>,
         recyclerView.layoutManager = layoutManager
         recyclerView.adapter = adapter
         val fastScroller = create(recyclerView)
-        recyclerView.setOnApplyWindowInsetsListener(
-            ScrollingViewOnApplyWindowInsetsListener(
-                recyclerView,
-                fastScroller
-            )
-        )
-        checkForPadding()
     }
 
     protected open fun createFastScroller(recyclerView: RecyclerView): FastScroller {
@@ -60,7 +48,6 @@ abstract class AbsLibraryPagerRecyclerViewFragment<A : RecyclerView.Adapter<*>,
             override fun onChanged() {
                 super.onChanged()
                 checkIsEmpty()
-                checkForPadding()
             }
         })
     }
@@ -78,18 +65,6 @@ abstract class AbsLibraryPagerRecyclerViewFragment<A : RecyclerView.Adapter<*>,
         empty.visibility = if (adapter!!.itemCount == 0) View.VISIBLE else View.GONE
     }
 
-    private fun checkForPadding() {
-        val itemCount: Int = adapter?.itemCount ?: 0
-        val params = container.layoutParams as ViewGroup.MarginLayoutParams
-        if (itemCount > 0 && MusicPlayerRemote.playingQueue.isNotEmpty()) {
-            val height = DensityUtil.dip2px(requireContext(), 104f)
-            params.bottomMargin = height
-        } else {
-            val height = DensityUtil.dip2px(requireContext(), 52f)
-            params.bottomMargin = height
-        }
-    }
-
     private fun initLayoutManager() {
         layoutManager = createLayoutManager()
     }
@@ -99,25 +74,6 @@ abstract class AbsLibraryPagerRecyclerViewFragment<A : RecyclerView.Adapter<*>,
     @NonNull
     protected abstract fun createAdapter(): A
 
-    override fun onOffsetChanged(p0: AppBarLayout?, i: Int) {
-        container.setPadding(
-            container.paddingLeft,
-            container.paddingTop,
-            container.paddingRight,
-            mainActivity.totalAppBarScrollingRange + i
-        )
-    }
-
-    override fun onQueueChanged() {
-        super.onQueueChanged()
-        checkForPadding()
-    }
-
-    override fun onServiceConnected() {
-        super.onServiceConnected()
-        checkForPadding()
-    }
-
     protected fun invalidateLayoutManager() {
         initLayoutManager()
         recyclerView.layoutManager = layoutManager
@@ -129,11 +85,6 @@ abstract class AbsLibraryPagerRecyclerViewFragment<A : RecyclerView.Adapter<*>,
         recyclerView.adapter = adapter
     }
 
-    override fun onDestroyView() {
-        super.onDestroyView()
-        mainActivity.removeOnAppBarOffsetChangedListener(this)
-    }
-
     fun recyclerView(): RecyclerView {
         return recyclerView
     }

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

@@ -12,6 +12,7 @@ import code.name.monkey.retromusic.model.Album
 import code.name.monkey.retromusic.mvp.presenter.AlbumsPresenter
 import code.name.monkey.retromusic.mvp.presenter.AlbumsView
 import code.name.monkey.retromusic.util.PreferenceUtil
+import dev.olog.scrollhelper.layoutmanagers.OverScrollGridLayoutManager
 import javax.inject.Inject
 
 class AlbumsFragment :
@@ -51,7 +52,7 @@ class AlbumsFragment :
         get() = R.string.no_albums
 
     override fun createLayoutManager(): GridLayoutManager {
-        return GridLayoutManager(requireActivity(), getGridSize())
+        return OverScrollGridLayoutManager(requireActivity(), getGridSize())
     }
 
     override fun createAdapter(): AlbumAdapter {

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

@@ -12,6 +12,7 @@ import code.name.monkey.retromusic.model.Artist
 import code.name.monkey.retromusic.mvp.presenter.ArtistsPresenter
 import code.name.monkey.retromusic.mvp.presenter.ArtistsView
 import code.name.monkey.retromusic.util.PreferenceUtil
+import dev.olog.scrollhelper.layoutmanagers.OverScrollGridLayoutManager
 import javax.inject.Inject
 
 class ArtistsFragment :
@@ -63,7 +64,7 @@ class ArtistsFragment :
     }
 
     override fun createLayoutManager(): GridLayoutManager {
-        return GridLayoutManager(requireActivity(), getGridSize())
+        return OverScrollGridLayoutManager(requireActivity(), getGridSize())
     }
 
     override fun createAdapter(): ArtistAdapter {

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

@@ -41,6 +41,7 @@ import code.name.monkey.retromusic.util.NavigationUtil
 import code.name.monkey.retromusic.util.PreferenceUtil
 import com.bumptech.glide.Glide
 import com.bumptech.glide.load.engine.DiskCacheStrategy
+import dev.olog.scrollhelper.layoutmanagers.OverScrollLinearLayoutManager
 import kotlinx.android.synthetic.main.abs_playlists.*
 import kotlinx.android.synthetic.main.fragment_banner_home.*
 import kotlinx.android.synthetic.main.home_content.*
@@ -141,7 +142,7 @@ class BannerHomeFragment : AbsMainActivityFragment(), MainActivityFragmentCallba
         homeAdapter = HomeAdapter(mainActivity, displayMetrics)
 
         recyclerView.apply {
-            layoutManager = LinearLayoutManager(mainActivity)
+            layoutManager = OverScrollLinearLayoutManager(mainActivity)
             adapter = homeAdapter
         }
         homePresenter.attachView(this)

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

@@ -74,6 +74,7 @@ import code.name.monkey.retromusic.util.RetroColorUtil;
 import code.name.monkey.retromusic.util.ThemedFastScroller;
 import code.name.monkey.retromusic.views.BreadCrumbLayout;
 import code.name.monkey.retromusic.views.ScrollingViewOnApplyWindowInsetsListener;
+import dev.olog.scrollhelper.layoutmanagers.OverScrollLinearLayoutManager;
 import me.zhanghai.android.fastscroll.FastScroller;
 
 public class FoldersFragment extends AbsMainActivityFragment implements
@@ -478,7 +479,7 @@ public class FoldersFragment extends AbsMainActivityFragment implements
     }
 
     private void setUpRecyclerView() {
-        recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
+        recyclerView.setLayoutManager(new OverScrollLinearLayoutManager(getActivity()));
         FastScroller fastScroller = ThemedFastScroller.INSTANCE.create(recyclerView);
         recyclerView.setOnApplyWindowInsetsListener(
                 new ScrollingViewOnApplyWindowInsetsListener(recyclerView, fastScroller));

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

@@ -25,6 +25,7 @@ import code.name.monkey.retromusic.interfaces.MainActivityFragmentCallbacks
 import code.name.monkey.retromusic.model.Genre
 import code.name.monkey.retromusic.mvp.presenter.GenresPresenter
 import code.name.monkey.retromusic.mvp.presenter.GenresView
+import dev.olog.scrollhelper.layoutmanagers.OverScrollLinearLayoutManager
 import javax.inject.Inject
 
 class GenresFragment : AbsLibraryPagerRecyclerViewFragment<GenreAdapter, LinearLayoutManager>(),
@@ -42,7 +43,7 @@ class GenresFragment : AbsLibraryPagerRecyclerViewFragment<GenreAdapter, LinearL
     }
 
     override fun createLayoutManager(): LinearLayoutManager {
-        return LinearLayoutManager(activity)
+        return OverScrollLinearLayoutManager(activity)
     }
 
     override fun createAdapter(): GenreAdapter {

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

@@ -28,6 +28,7 @@ import com.h6ah4i.android.widget.advrecyclerview.draggable.RecyclerViewDragDropM
 import com.h6ah4i.android.widget.advrecyclerview.swipeable.RecyclerViewSwipeManager
 import com.h6ah4i.android.widget.advrecyclerview.touchguard.RecyclerViewTouchActionGuardManager
 import com.h6ah4i.android.widget.advrecyclerview.utils.WrapperAdapterUtils
+import dev.olog.scrollhelper.layoutmanagers.OverScrollLinearLayoutManager
 import kotlinx.android.synthetic.main.activity_playing_queue.*
 
 /**
@@ -73,7 +74,7 @@ class PlayingQueueFragment :
     }
 
     override fun createLayoutManager(): LinearLayoutManager {
-        return LinearLayoutManager(requireContext())
+        return OverScrollLinearLayoutManager(requireContext())
     }
 
     override fun createAdapter(): PlayingQueueAdapter {

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

@@ -13,6 +13,7 @@ import code.name.monkey.retromusic.interfaces.MainActivityFragmentCallbacks
 import code.name.monkey.retromusic.model.Playlist
 import code.name.monkey.retromusic.mvp.presenter.PlaylistView
 import code.name.monkey.retromusic.mvp.presenter.PlaylistsPresenter
+import dev.olog.scrollhelper.layoutmanagers.OverScrollGridLayoutManager
 import javax.inject.Inject
 
 class PlaylistsFragment :
@@ -40,7 +41,7 @@ class PlaylistsFragment :
     }
 
     override fun createLayoutManager(): GridLayoutManager {
-        return GridLayoutManager(requireContext(), 1)
+        return OverScrollGridLayoutManager(requireContext(), 1)
     }
 
     override fun createAdapter(): PlaylistAdapter {

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

@@ -14,6 +14,7 @@ import code.name.monkey.retromusic.model.Song
 import code.name.monkey.retromusic.mvp.presenter.SongPresenter
 import code.name.monkey.retromusic.mvp.presenter.SongView
 import code.name.monkey.retromusic.util.PreferenceUtil
+import dev.olog.scrollhelper.layoutmanagers.OverScrollGridLayoutManager
 import java.util.*
 import javax.inject.Inject
 
@@ -39,7 +40,7 @@ class SongsFragment :
     }
 
     override fun createLayoutManager(): GridLayoutManager {
-        return GridLayoutManager(requireActivity(), getGridSize()).apply {
+        return OverScrollGridLayoutManager(requireActivity(), getGridSize()).apply {
             spanSizeLookup = object : GridLayoutManager.SpanSizeLookup() {
                 override fun getSpanSize(position: Int): Int {
                     return if (position == 0) {

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

@@ -18,11 +18,13 @@ import code.name.monkey.appthemehelper.ThemeStore.Companion.accentColor
 import code.name.monkey.appthemehelper.util.ColorUtil.isColorLight
 import code.name.monkey.appthemehelper.util.MaterialValueHelper.getPrimaryTextColor
 import code.name.monkey.appthemehelper.util.TintHelper
+import code.name.monkey.retromusic.R
+import code.name.monkey.retromusic.extensions.dimen
+import code.name.monkey.retromusic.extensions.dip
 import code.name.monkey.retromusic.views.PopupBackground
 import me.zhanghai.android.fastscroll.FastScroller
 import me.zhanghai.android.fastscroll.FastScrollerBuilder
 import me.zhanghai.android.fastscroll.PopupStyles
-import me.zhanghai.android.fastscroll.R
 
 object ThemedFastScroller {
     fun create(view: ViewGroup): FastScroller {
@@ -37,6 +39,13 @@ object ThemedFastScroller {
             popupText.setTextColor(textColor)
         }
 
+        fastScrollerBuilder.setPadding(
+            0,
+            view.context.dimen(R.dimen.toolbar_height) + view.context.dip(8),
+            0,
+            view.context.dimen(R.dimen.mini_player_height)
+        )
+
         fastScrollerBuilder.setThumbDrawable(
             TintHelper.createTintedDrawable(
                 context,

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

@@ -1,79 +1,71 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout 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="match_parent"
-    android:background="?colorSurface"
+    android:background="?colorSurface">
-    android:orientation="vertical">
+
+<!--    TODO in order to work, children has to be defined in reverse drawing order-->
+<!--    TODO so: first fragment_container, than toolbar, than statusbar -->
 
     <FrameLayout
-        android:layout_width="match_parent"
+        android:id="@+id/fragment_container"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        app:layout_constraintTop_toBottomOf="@+id/status_bar"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"/>
+
+    <com.google.android.material.card.MaterialCardView
+        android:id="@+id/toolbarContainer"
+        app:layout_constraintTop_toBottomOf="@+id/status_bar"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_width="0dp"
         android:layout_height="wrap_content"
-        android:elevation="0dp"
+        app:cardCornerRadius="8dp"
-        tools:ignore="UnusedAttribute">
+        app:cardUseCompatPadding="true"
-
+        app:layout_scrollFlags="scroll|enterAlways">
-        <include layout="@layout/status_bar" />
-
-    </FrameLayout>
-
-    <androidx.coordinatorlayout.widget.CoordinatorLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent">
-
-        <com.google.android.material.appbar.AppBarLayout
-            android:id="@+id/appBarLayout"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:background="@android:color/transparent"
-            android:elevation="0dp"
-            app:elevation="0dp"
-            app:liftOnScroll="true">
-
-            <com.google.android.material.card.MaterialCardView
-                android:id="@+id/toolbarContainer"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                app:cardCornerRadius="8dp"
-                app:cardUseCompatPadding="true"
-                app:layout_scrollFlags="scroll|enterAlways">
-
-                <FrameLayout
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content">
-
-                    <androidx.appcompat.widget.Toolbar
-                        android:id="@+id/toolbar"
-                        android:layout_width="match_parent"
-                        android:layout_height="@dimen/toolbar_height"
-                        android:background="?attr/colorSurface"
-                        app:popupTheme="?attr/toolbarPopupTheme"
-                        app:titleTextColor="?attr/colorControlNormal"
-                        app:titleTextAppearance="@style/TextViewHeadline6"
-                        tools:ignore="UnusedAttribute">
-
-                        <com.google.android.material.textview.MaterialTextView
-                            android:id="@+id/appTitle"
-                            android:layout_width="wrap_content"
-                            android:layout_height="wrap_content"
-                            android:gravity="center"
-                            android:text="@string/app_name"
-                            android:textColor="?attr/colorControlNormal"
-                            android:textAppearance="@style/TextViewHeadline6" />
-                    </androidx.appcompat.widget.Toolbar>
-
-                    <ViewStub
-                        android:id="@+id/cab_stub"
-                        android:layout_width="match_parent"
-                        android:layout_height="@dimen/toolbar_height" />
-                </FrameLayout>
-            </com.google.android.material.card.MaterialCardView>
-        </com.google.android.material.appbar.AppBarLayout>
 
         <FrameLayout
-            android:id="@+id/fragment_container"
             android:layout_width="match_parent"
-            android:layout_height="match_parent"
+            android:layout_height="wrap_content">
-            app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavior" />
+
-    </androidx.coordinatorlayout.widget.CoordinatorLayout>
+            <androidx.appcompat.widget.Toolbar
-</LinearLayout>
+                android:id="@+id/toolbar"
+                android:layout_width="match_parent"
+                android:layout_height="@dimen/toolbar_height"
+                android:background="?attr/colorSurface"
+                app:popupTheme="?attr/toolbarPopupTheme"
+                app:titleTextColor="?attr/colorControlNormal"
+                app:titleTextAppearance="@style/TextViewHeadline6"
+                tools:ignore="UnusedAttribute">
+
+                <com.google.android.material.textview.MaterialTextView
+                    android:id="@+id/appTitle"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:gravity="center"
+                    android:text="@string/app_name"
+                    android:textColor="?attr/colorControlNormal"
+                    android:textAppearance="@style/TextViewHeadline6" />
+            </androidx.appcompat.widget.Toolbar>
+
+            <ViewStub
+                android:id="@+id/cab_stub"
+                android:layout_width="match_parent"
+                android:layout_height="@dimen/toolbar_height" />
+        </FrameLayout>
+    </com.google.android.material.card.MaterialCardView>
+
+    <include layout="@layout/status_bar"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:layout_width="0dp"
+        tools:layout_height="24dp"
+        android:layout_height="wrap_content"/>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -17,6 +17,7 @@
     android:id="@+id/container"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
+    android:layout_marginTop="@dimen/toolbar_height"
     app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavior">
 
     <androidx.constraintlayout.widget.ConstraintLayout

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

@@ -17,6 +17,7 @@
     android:id="@+id/container"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
+    android:layout_marginTop="@dimen/toolbar_height"
     app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavior">
 
     <androidx.constraintlayout.widget.ConstraintLayout

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

@@ -6,15 +6,16 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
+<!--    TODO note that recycler view has to cover the entire screen -->
+<!--    TODO so has to be drawn under bottom navigation, toolbar, ecc, but has to be below statusbar-->
     <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/recyclerView"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="match_parent"
         android:clipToPadding="false"
         android:layoutAnimation="@anim/layout_animation_fall_down"
         android:overScrollMode="never"
         android:scrollbars="none"
-        app:layout_dodgeInsetEdges="bottom"
         tools:listitem="@layout/item_list" />
 
     <LinearLayout

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

@@ -37,7 +37,7 @@
             android:id="@+id/miniPlayerFragment"
             android:name="code.name.monkey.retromusic.fragments.MiniPlayerFragment"
             android:layout_width="match_parent"
-            android:layout_height="48dp"
+            android:layout_height="@dimen/mini_player_height"
             tools:layout="@layout/fragment_mini_player" />
 
     </FrameLayout>