Allow overriding theme

app/src/main/AndroidManifest.xml

@@ -13,12 +13,14 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.Jellyfin"
         android:usesCleartextTraffic="true">
-        <activity android:name=".PlayerActivity" />
+        <activity
+            android:name=".PlayerActivity"
+            android:screenOrientation="landscape" />
         <activity
             android:name=".MainActivity"
+            android:exported="true"
             android:theme="@style/Theme.JellyfinSplashScreen"
-            android:windowSoftInputMode="adjustPan"
-            android:exported="true">
+            android:windowSoftInputMode="adjustPan">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 

app/src/main/java/dev/jdtech/jellyfin/BaseApplication.kt

@@ -1,12 +1,22 @@
 package dev.jdtech.jellyfin
 
 import android.app.Application
+import androidx.appcompat.app.AppCompatDelegate
+import androidx.preference.PreferenceManager
 import dagger.hilt.android.HiltAndroidApp
 import timber.log.Timber
 
 @HiltAndroidApp
 class BaseApplication : Application() {
     override fun onCreate() {
+        val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this)
+
+        when (sharedPreferences.getString("theme", null)) {
+            "system" -> AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM)
+            "light" -> AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO)
+            "dark" -> AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES)
+        }
+
         super.onCreate()
         if (BuildConfig.DEBUG) {
             Timber.plant(Timber.DebugTree())

app/src/main/java/dev/jdtech/jellyfin/MainActivity.kt

@@ -22,9 +22,8 @@ class MainActivity : AppCompatActivity() {
     private val viewModel: MainViewModel by viewModels()
 
     override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-
         installSplashScreen()
+        super.onCreate(savedInstanceState)
 
         binding = ActivityMainBinding.inflate(layoutInflater)
 
@@ -66,7 +65,9 @@ class MainActivity : AppCompatActivity() {
 
         viewModel.doneLoading.observe(this, {
             if (it) {
-                navController.navigate(InitializingFragmentDirections.actionInitializingFragmentToNavigationHome())
+                if (navController.currentDestination!!.id == R.id.initializingFragment) {
+                    navController.navigate(InitializingFragmentDirections.actionInitializingFragmentToNavigationHome())
+                }
             }
         })
     }

app/src/main/java/dev/jdtech/jellyfin/fragments/SettingsFragment.kt

@@ -1,7 +1,9 @@
 package dev.jdtech.jellyfin.fragments
 
 import android.os.Bundle
+import androidx.appcompat.app.AppCompatDelegate.*
 import androidx.navigation.fragment.findNavController
+import androidx.preference.ListPreference
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import dev.jdtech.jellyfin.R
@@ -14,5 +16,14 @@ class SettingsFragment : PreferenceFragmentCompat() {
             findNavController().navigate(SettingsFragmentDirections.actionNavigationSettingsToServerSelectFragment2())
             true
         }
+
+        findPreference<ListPreference>("theme")?.setOnPreferenceChangeListener { _, newValue ->
+            when (newValue) {
+                "system" -> setDefaultNightMode(MODE_NIGHT_FOLLOW_SYSTEM)
+                "light" -> setDefaultNightMode(MODE_NIGHT_NO)
+                "dark" -> setDefaultNightMode(MODE_NIGHT_YES)
+            }
+            true
+        }
     }
 }

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

@@ -47,4 +47,6 @@
     <string name="initializing">Initializing…</string>
     <string name="settings_category_servers">Servers</string>
     <string name="switch_server">Switch server</string>
+    <string name="settings_category_appearance">Appearance</string>
+    <string name="theme">Theme</string>
 </resources>

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

@@ -22,4 +22,16 @@
         <item name="windowSplashScreenBackground">@color/neutral_100</item>
         <item name="postSplashScreenTheme">@style/Theme.Jellyfin</item>
     </style>
+
+    <string-array name="themes">
+        <item>Follow system</item>
+        <item>Light</item>
+        <item>Dark</item>
+    </string-array>
+
+    <string-array name="themes_value">
+        <item>system</item>
+        <item>light</item>
+        <item>dark</item>
+    </string-array>
 </resources>

app/src/main/res/xml/fragment_settings.xml

@@ -29,4 +29,14 @@
 
     </PreferenceCategory>
 
+    <PreferenceCategory app:title="@string/settings_category_appearance">
+        <ListPreference
+            app:defaultValue="system"
+            app:entries="@array/themes"
+            app:entryValues="@array/themes_value"
+            app:key="theme"
+            app:title="@string/theme"
+            app:useSimpleSummaryProvider="true"/>
+    </PreferenceCategory>
+
 </PreferenceScreen>