Code cleanup

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

@@ -89,9 +89,9 @@ class MainActivity : AbsCastActivity(), OnSharedPreferenceChangeListener {
             )
         }
         navController.graph = navGraph
-        getBottomNavigationView().setupWithNavController(navController)
+        bottomNavigationView.setupWithNavController(navController)
         // Scroll Fragment to top
-        getBottomNavigationView().setOnItemReselectedListener {
+        bottomNavigationView.setOnItemReselectedListener {
             currentFragment(R.id.fragment_container)
                 .also {
                     if (it is AbsRecyclerViewFragment<*, *>) {
@@ -118,7 +118,6 @@ class MainActivity : AbsCastActivity(), OnSharedPreferenceChangeListener {
                 }
                 else -> setBottomNavVisibility(visible = false, animate = true) // Hide Bottom Navigation Bar
             }
-
         }
     }
 

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

@@ -60,7 +60,6 @@ import code.name.monkey.retromusic.helper.MusicPlayerRemote
 import code.name.monkey.retromusic.model.CategoryInfo
 import code.name.monkey.retromusic.util.PreferenceUtil
 import code.name.monkey.retromusic.util.RetroUtil
-import com.google.android.material.bottomnavigation.BottomNavigationView
 import com.google.android.material.bottomsheet.BottomSheetBehavior.*
 import org.koin.androidx.viewmodel.ext.android.viewModel
 
@@ -103,7 +102,7 @@ abstract class AbsSlidingMusicPanelActivity : AbsMusicServiceActivity() {
                 }
                 STATE_SETTLING, STATE_DRAGGING -> {
                     if (fromNotification) {
-                        getBottomNavigationView().isVisible = true
+                        bottomNavigationView.isVisible = true
                     }
                 }
                 else -> {
@@ -125,7 +124,7 @@ abstract class AbsSlidingMusicPanelActivity : AbsMusicServiceActivity() {
             windowInsets = insets
             insets
         }
-        binding.bottomNavigationView.drawAboveSystemBarsWithPadding()
+        bottomNavigationView.drawAboveSystemBarsWithPadding()
         if (RetroUtil.isLandscape()) {
             binding.slidingPanel.drawAboveSystemBarsWithPadding(true)
         }
@@ -214,9 +213,7 @@ abstract class AbsSlidingMusicPanelActivity : AbsMusicServiceActivity() {
         })
     }
 
-    fun getBottomNavigationView(): BottomNavigationView {
-        return binding.bottomNavigationView
-    }
+    val bottomNavigationView get() = binding.bottomNavigationView
 
     override fun onServiceConnected() {
         super.onServiceConnected()
@@ -357,7 +354,7 @@ abstract class AbsSlidingMusicPanelActivity : AbsMusicServiceActivity() {
                         bottomSheetBehavior.peekHeightAnimate(heightOfBar)
                         bottomNavAnimator?.end()
                         bottomNavAnimator =
-                            getBottomNavigationView().translateYAnimate(dip(R.dimen.bottom_nav_height).toFloat())
+                            bottomNavigationView.translateYAnimate(dip(R.dimen.bottom_nav_height).toFloat())
                         bottomNavAnimator?.doOnEnd {
                             binding.slidingPanel.bringToFront()
                         }

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

@@ -86,7 +86,7 @@ abstract class AbsRecyclerViewCustomGridSizeFragment<A : RecyclerView.Adapter<*>
         } else {
             saveGridSize(gridSize)
         }
-        recyclerView().isVisible = false
+        recyclerView.isVisible = false
         invalidateLayoutManager()
         // only recreate the adapter and layout manager if the layout currentLayoutRes has changed
         if (oldLayoutRes != itemLayoutRes()) {
@@ -95,10 +95,10 @@ abstract class AbsRecyclerViewCustomGridSizeFragment<A : RecyclerView.Adapter<*>
             setGridSize(gridSize)
         }
         val transition = MaterialFade().apply {
-            addTarget(recyclerView())
+            addTarget(recyclerView)
         }
-        TransitionManager.beginDelayedTransition(getContainer(), transition)
-        recyclerView().isVisible = true
+        TransitionManager.beginDelayedTransition(container, transition)
+        recyclerView.isVisible = true
     }
 
     protected abstract fun setGridSize(gridSize: Int)

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

@@ -19,7 +19,6 @@ import android.view.*
 import androidx.annotation.NonNull
 import androidx.annotation.StringRes
 import androidx.appcompat.widget.Toolbar
-import androidx.coordinatorlayout.widget.CoordinatorLayout
 import androidx.core.view.doOnPreDraw
 import androidx.core.view.isVisible
 import androidx.core.view.updateLayoutParams
@@ -57,7 +56,6 @@ abstract class AbsRecyclerViewFragment<A : RecyclerView.Adapter<*>, LM : Recycle
         _binding = FragmentMainRecyclerBinding.bind(view)
         postponeEnterTransition()
         view.doOnPreDraw { startPostponedEnterTransition() }
-
         mainActivity.setSupportActionBar(binding.toolbar)
         mainActivity.supportActionBar?.title = null
         initLayoutManager()
@@ -198,16 +196,12 @@ abstract class AbsRecyclerViewFragment<A : RecyclerView.Adapter<*>, LM : Recycle
         binding.recyclerView.adapter = adapter
     }
 
-    fun recyclerView(): RecyclerView {
-        return binding.recyclerView
-    }
+    val recyclerView get() = binding.recyclerView
 
-    fun getContainer(): CoordinatorLayout {
-        return binding.root
-    }
+    val container get() = binding.root
 
     fun scrollToTop() {
-        recyclerView().scrollToPosition(0)
+        recyclerView.scrollToPosition(0)
         binding.appBarLayout.setExpanded(true, true)
     }
 

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

@@ -84,7 +84,7 @@ class LibraryFragment : AbsMainActivityFragment(R.layout.fragment_library) {
             navGraph.setStartDestination(categoryInfo.category.id)
         }
         navController.graph = navGraph
-        NavigationUI.setupWithNavController(mainActivity.getBottomNavigationView(), navController)
+        NavigationUI.setupWithNavController(mainActivity.bottomNavigationView, navController)
         navController.addOnDestinationChangedListener { _, _, _ ->
             binding.appBarLayout.setExpanded(true, true)
         }

app/src/main/java/code/name/monkey/retromusic/fragments/other/PlayingQueueRVFragment.kt

@@ -70,12 +70,12 @@ class PlayingQueueRVFragment : AbsRecyclerViewFragment<PlayingQueueAdapter, Line
             recyclerViewDragDropManager?.createWrappedAdapter(adapter!!) as RecyclerView.Adapter<*>
         wrappedAdapter =
             recyclerViewSwipeManager?.createWrappedAdapter(wrappedAdapter) as RecyclerView.Adapter<*>
-        recyclerView().layoutManager = layoutManager
-        recyclerView().adapter = wrappedAdapter
-        recyclerView().itemAnimator = animator
-        recyclerViewTouchActionGuardManager?.attachRecyclerView(recyclerView())
-        recyclerViewDragDropManager?.attachRecyclerView(recyclerView())
-        recyclerViewSwipeManager?.attachRecyclerView(recyclerView())
+        recyclerView.layoutManager = layoutManager
+        recyclerView.adapter = wrappedAdapter
+        recyclerView.itemAnimator = animator
+        recyclerViewTouchActionGuardManager?.attachRecyclerView(recyclerView)
+        recyclerViewDragDropManager?.attachRecyclerView(recyclerView)
+        recyclerViewSwipeManager?.attachRecyclerView(recyclerView)
 
         layoutManager?.scrollToPositionWithOffset(MusicPlayerRemote.position + 1, 0)
     }
@@ -120,7 +120,7 @@ class PlayingQueueRVFragment : AbsRecyclerViewFragment<PlayingQueueAdapter, Line
     }
 
     private fun resetToCurrentPosition() {
-        recyclerView().stopScroll()
+        recyclerView.stopScroll()
         layoutManager?.scrollToPositionWithOffset(MusicPlayerRemote.position + 1, 0)
     }