fix(i18n): force context recreation on locale change and fix hardcoded strings

app/src/main/java/com/example/retroha/BaseActivity.kt

@@ -1,10 +1,15 @@
 package com.example.retroha
 import android.app.Activity
+import android.content.Context
 import android.os.Bundle
 import com.example.retroha.i18n.LocaleHelper
+
 abstract class BaseActivity : Activity() {
+    override fun attachBaseContext(newBase: Context) {
+        super.attachBaseContext(LocaleHelper.setLocale(newBase))
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
-        LocaleHelper.setLocale(this)
         super.onCreate(savedInstanceState)
     }
 }

app/src/main/java/com/example/retroha/LanguageActivity.kt

@@ -12,13 +12,12 @@ import android.widget.TextView
 import com.example.retroha.data.Prefs
 import com.example.retroha.i18n.LocaleHelper
 import com.example.retroha.theme.Colors
-class LanguageActivity : Activity() {
+class LanguageActivity : BaseActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         val isFirstLaunch = Prefs.getLanguage(this) == null
         val fromSettings = intent.getBooleanExtra("from_settings", false)
         if (!isFirstLaunch && !fromSettings) {
-            LocaleHelper.setLocale(this) 
             startMainActivity()
             return
         }
@@ -72,12 +71,10 @@ class LanguageActivity : Activity() {
         }
         root.addView(createBauhausButton("POLSKI", Colors.BLUE) {
             Prefs.setLanguage(this, "pl")
-            LocaleHelper.setLocale(this)
             startMainActivity()
         })
         root.addView(createBauhausButton("ENGLISH", Colors.YELLOW) {
             Prefs.setLanguage(this, "en")
-            LocaleHelper.setLocale(this)
             startMainActivity()
         })
         setContentView(root)

app/src/main/java/com/example/retroha/i18n/LocaleHelper.kt

@@ -1,16 +1,32 @@
 package com.example.retroha.i18n
 import android.content.Context
 import android.content.res.Configuration
+import android.os.Build
 import com.example.retroha.data.Prefs
 import java.util.Locale
+
 object LocaleHelper {
-    fun setLocale(context: Context) {
+    
-        val lang = Prefs.getLanguage(context) ?: return
+    fun setLocale(context: Context): Context {
-        val locale = Locale(lang)
+        val lang = Prefs.getLanguage(context) ?: "pl"
+        return updateResources(context, lang)
+    }
+
+    private fun updateResources(context: Context, language: String): Context {
+        val locale = Locale(language)
         Locale.setDefault(locale)
-        val resources = context.resources
+
-        val config = Configuration(resources.configuration)
+        val configuration = Configuration(context.resources.configuration)
-        config.locale = locale
+        
-        resources.updateConfiguration(config, resources.displayMetrics)
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            configuration.setLocale(locale)
+            return context.createConfigurationContext(configuration)
+        } else {
+            @Suppress("DEPRECATION")
+            configuration.locale = locale
+            @Suppress("DEPRECATION")
+            context.resources.updateConfiguration(configuration, context.resources.displayMetrics)
+            return context
+        }
     }
 }

app/src/main/java/com/example/retroha/ui/LightControlDialog.kt

@@ -43,20 +43,25 @@ class LightControlDialog(
             layoutParams = LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, dp(2))
             setBackgroundColor(Colors.BLACK)
         })
+
+        val brightnessLabel = context.getString(com.example.retroha.R.string.dialog_brightness)
+
         val tvBrightness = TextView(context).apply {
-            text = "JASNOŚĆ: ${(initialBrightness * 100 / 255)}%"
+            text = "$brightnessLabel: ${(initialBrightness * 100 / 255)}%"
             typeface = android.graphics.Typeface.MONOSPACE
             textSize = 14f
             setTextColor(Colors.BLACK)
             setPadding(0, dp(24), 0, dp(8))
         }
         root.addView(tvBrightness)
+
+        // SeekBar
         val seekBar = SeekBar(context).apply {
             max = 255
             progress = initialBrightness
             setOnSeekBarChangeListener(object : SeekBar.OnSeekBarChangeListener {
                 override fun onProgressChanged(s: SeekBar?, p: Int, fromUser: Boolean) {
-                    tvBrightness.text = "JASNOŚĆ: ${(p * 100 / 255)}%"
+                    tvBrightness.text = "$brightnessLabel: ${(p * 100 / 255)}%"
                 }
                 override fun onStartTrackingTouch(s: SeekBar?) {}
                 override fun onStopTrackingTouch(s: SeekBar?) {

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

@@ -56,7 +56,7 @@
                 <TextView
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
-                    android:text="USTAWIENIA"
+                    android:text="@string/btn_settings"
                     android:paddingLeft="12dp"
                     android:paddingRight="12dp"
                     android:paddingTop="7dp"
@@ -73,7 +73,7 @@
                     android:id="@+id/btnSettings"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
-                    android:text="USTAWIENIA"
+                    android:text="@string/btn_settings"
                     android:paddingLeft="12dp"
                     android:paddingRight="12dp"
                     android:paddingTop="7dp"