Add ViewPager

Add a ViewPager, currently it has no purpose but it will eventually.

app/build.gradle

@@ -56,6 +56,9 @@ dependencies {
     implementation "androidx.navigation:navigation-fragment-ktx:$navigation_version"
     implementation "androidx.navigation:navigation-ui-ktx:$navigation_version"
 
+    // Viewpager
+    implementation 'androidx.viewpager2:viewpager2:1.0.0'
+
     // Image loading
     implementation("io.coil-kt:coil:0.12.0")
 

app/src/main/java/org/oxycblt/auxio/MainActivity.kt

@@ -3,6 +3,7 @@ package org.oxycblt.auxio
 import android.os.Bundle
 import android.util.Log
 import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.app.AppCompatDelegate
 
 class MainActivity : AppCompatActivity() {
 
@@ -10,7 +11,7 @@ class MainActivity : AppCompatActivity() {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
 
-        // AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO)
+        AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO)
 
         Log.d(this::class.simpleName, "Activity Created.")
     }

app/src/main/java/org/oxycblt/auxio/MainFragment.kt

@@ -0,0 +1,42 @@
+package org.oxycblt.auxio
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.databinding.DataBindingUtil
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentActivity
+import androidx.viewpager2.adapter.FragmentStateAdapter
+import org.oxycblt.auxio.databinding.FragmentMainBinding
+import org.oxycblt.auxio.library.LibraryFragment
+
+// TODO: Placeholder, page count will be dynamic
+private const val PAGES = 1
+
+class MainFragment : Fragment() {
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        val binding = DataBindingUtil.inflate<FragmentMainBinding>(
+            inflater, R.layout.fragment_main, container, false
+        )
+
+        val adapter = FragmentAdapter(requireActivity())
+        binding.viewPager.adapter = adapter
+
+        return binding.root
+    }
+}
+
+class FragmentAdapter(activity: FragmentActivity) : FragmentStateAdapter(activity) {
+    override fun getItemCount(): Int = PAGES
+
+    override fun createFragment(position: Int): Fragment {
+        // TODO: Also placeholder, remove when there are other fragments than just library
+        return LibraryFragment()
+    }
+}

app/src/main/java/org/oxycblt/auxio/loading/LoadingFragment.kt

@@ -32,7 +32,7 @@ class LoadingFragment : Fragment() {
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        binding = DataBindingUtil.inflate<FragmentLoadingBinding>(
+        binding = DataBindingUtil.inflate(
             inflater, R.layout.fragment_loading, container, false
         )
 
@@ -65,7 +65,7 @@ class LoadingFragment : Fragment() {
         repoResponse?.let { response ->
             if (response == MusicLoaderResponse.DONE) {
                 this.findNavController().navigate(
-                    LoadingFragmentDirections.actionToLibrary()
+                    LoadingFragmentDirections.actionToMain()
                 )
             } else {
                 // If the response wasn't a success, then show the specific error message

app/src/main/java/org/oxycblt/auxio/recycler/AlbumViewHolder.kt

@@ -1,6 +1,5 @@
 package org.oxycblt.auxio.recycler
 
-import android.net.Uri
 import androidx.recyclerview.widget.RecyclerView
 import coil.load
 import org.oxycblt.auxio.databinding.AlbumItemBinding

app/src/main/java/org/oxycblt/auxio/recycler/RecyclerUtils.kt

@@ -29,21 +29,21 @@ fun RecyclerView.applyDivider() {
 
     div.setDrawable(
         ColorDrawable(
-            getDividerColor(this)
+            getDividerDrawable(this)
         )
     )
 
     addItemDecoration(div)
 }
 
-private fun getDividerColor(recycler: RecyclerView): Int {
+private fun getDividerDrawable(recycler: RecyclerView): Int {
     val isDark = AppCompatDelegate.getDefaultNightMode() == AppCompatDelegate.MODE_NIGHT_YES
 
     // Depending on the theme use a different opacity for the divider
     val alpha = if (isDark) 45 else 85
 
     return ColorUtils.setAlphaComponent(
-        ContextCompat.getColor(recycler.context, R.color.blue),
+        ContextCompat.getColor(recycler.context, R.color.divider_color),
         alpha
     )
 }

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

@@ -25,7 +25,8 @@
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@+id/toolbar"
-            app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager" />
+            app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
+            tools:listitem="@layout/album_item" />
 
     </androidx.constraintlayout.widget.ConstraintLayout>
 </layout>

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

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <androidx.viewpager2.widget.ViewPager2
+            android:id="@+id/viewPager"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent" />
+
+    </FrameLayout>
+</layout>

app/src/main/res/navigation/nav_main.xml

@@ -11,14 +11,14 @@
         android:label="LoadingFragment"
         tools:layout="@layout/fragment_loading">
         <action
-            android:id="@+id/action_to_library"
-            app:destination="@id/libraryFragment"
+            android:id="@+id/action_to_main"
+            app:destination="@id/mainFragment"
             app:popUpTo="@id/loadingFragment"
             app:popUpToInclusive="true" />
     </fragment>
     <fragment
-        android:id="@+id/libraryFragment"
-        android:name="org.oxycblt.auxio.library.LibraryFragment"
+        android:id="@+id/mainFragment"
+        android:name="org.oxycblt.auxio.MainFragment"
         android:label="LibraryFragment"
-        tools:layout="@layout/fragment_library" />
+        tools:layout="@layout/fragment_main" />
 </navigation>

app/src/main/res/values-night/colors.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <color name="background">#151515</color>
+    <color name="divider_color">#6d6d6d</color>
 
     <!--
     Base color set derived from Music Player GO.

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

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <color name="background">#fafafa</color>
+    <color name="divider_color">#6d6d6d</color>
 
     <!--
     Base color set derived from Music Player GO.