Merge pull request #54 from IamRezaMousavi/add-locale

add en locale

app/src/main/kotlin/com/github/iamrezamousavi/mafia/MainActivity.kt

@@ -1,20 +1,28 @@
 package com.github.iamrezamousavi.mafia
 
+import android.content.Context
+import android.content.SharedPreferences
 import android.os.Bundle
-import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
 import androidx.navigation.NavController
 import androidx.navigation.fragment.NavHostFragment
+import com.github.iamrezamousavi.mafia.data.local.PREF_APP_LANGUAGE
+import com.github.iamrezamousavi.mafia.data.local.preferences
 import com.github.iamrezamousavi.mafia.databinding.ActivityMainBinding
+import com.github.iamrezamousavi.mafia.utils.getContextWrapper
 
-class MainActivity : AppCompatActivity() {
+class MainActivity :
+    AppCompatActivity(),
+    SharedPreferences.OnSharedPreferenceChangeListener {
     private lateinit var binding: ActivityMainBinding
 
-    private val mainViewModel: MainViewModel by viewModels()
-
     private lateinit var navHostFragment: NavHostFragment
     private lateinit var navController: NavController
 
+    override fun attachBaseContext(newBase: Context) {
+        super.attachBaseContext(getContextWrapper(newBase))
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         binding = ActivityMainBinding.inflate(layoutInflater)
@@ -23,5 +31,18 @@ class MainActivity : AppCompatActivity() {
         navHostFragment =
             supportFragmentManager.findFragmentById(R.id.fragmentContainerView) as NavHostFragment
         navController = navHostFragment.navController
+
+        preferences.registerOnSharedPreferenceChangeListener(this)
+    }
+
+    override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
+        if (key == PREF_APP_LANGUAGE) {
+            recreate()
+        }
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        preferences.unregisterOnSharedPreferenceChangeListener(this)
     }
 }

app/src/main/kotlin/com/github/iamrezamousavi/mafia/data/local/SharedPreferences.kt

@@ -0,0 +1,18 @@
+package com.github.iamrezamousavi.mafia.data.local
+
+import android.content.Context
+import android.content.SharedPreferences
+import androidx.core.content.edit
+import com.github.iamrezamousavi.mafia.data.model.Language
+import com.github.iamrezamousavi.mafia.data.model.toLanguage
+
+const val PREF_APP_LANGUAGE = "AppLanguage"
+
+val Context.preferences: SharedPreferences
+    get() = getSharedPreferences("${packageName}_preferences", Context.MODE_PRIVATE)
+
+fun SharedPreferences.saveLanguage(language: Language) = edit {
+    putString(PREF_APP_LANGUAGE, language.code)
+}
+
+fun SharedPreferences.getLanguage() = getString(PREF_APP_LANGUAGE, Language.FA.code).toLanguage()!!

app/src/main/kotlin/com/github/iamrezamousavi/mafia/data/model/Language.kt

@@ -0,0 +1,17 @@
+package com.github.iamrezamousavi.mafia.data.model
+
+import java.util.Locale
+
+enum class Language(
+    val code: String,
+    val nativeName: String
+) {
+    FA("fa", "فارسی"),
+    EN("en", "English");
+
+    fun asSystemLocale() = Locale(code)
+}
+
+fun String?.toLanguage() = Language.entries.find { it.code == this }
+
+fun String?.toNativeLanguage() = Language.entries.find { it.nativeName == this }

app/src/main/kotlin/com/github/iamrezamousavi/mafia/utils/Configuration.kt

@@ -0,0 +1,12 @@
+package com.github.iamrezamousavi.mafia.utils
+
+import android.os.Build
+import androidx.annotation.ChecksSdkIntAtLeast
+
+@get:ChecksSdkIntAtLeast(api = Build.VERSION_CODES.TIRAMISU)
+inline val isAtLeastAndroid13
+    get() = Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU
+
+@get:ChecksSdkIntAtLeast(api = Build.VERSION_CODES.N)
+inline val isAtLeastAndroid7
+    get() = Build.VERSION.SDK_INT >= Build.VERSION_CODES.N

app/src/main/kotlin/com/github/iamrezamousavi/mafia/utils/Locale.kt

@@ -0,0 +1,37 @@
+package com.github.iamrezamousavi.mafia.utils
+
+import android.content.Context
+import android.content.ContextWrapper
+import com.github.iamrezamousavi.mafia.data.local.getLanguage
+import com.github.iamrezamousavi.mafia.data.local.preferences
+import java.util.Locale
+
+@Suppress("DEPRECATION")
+fun getContextWrapper(context: Context): ContextWrapper {
+    val resources = context.resources
+    val configuration = resources.configuration
+
+    val language = context.preferences.getLanguage()
+    val locale = Locale(language.code)
+    Locale.setDefault(locale)
+
+    val currentLocale =
+        if (isAtLeastAndroid7) {
+            configuration.locales.get(0)
+        } else {
+            configuration.locale
+        }
+
+    if (currentLocale.language == language.code) {
+        return ContextWrapper(context)
+    }
+
+    configuration.setLocale(locale)
+
+    if (isAtLeastAndroid7) {
+        context.createConfigurationContext(configuration)
+    }
+    resources.updateConfiguration(configuration, resources.displayMetrics)
+
+    return ContextWrapper(context)
+}

app/src/main/kotlin/com/github/iamrezamousavi/mafia/view/MainFragment.kt

@@ -73,6 +73,10 @@ class MainFragment : Fragment() {
             }
         }
 
+        binding.mainToolBar.setNavigationOnClickListener {
+            findNavController().navigate(R.id.action_mainFragment_to_settingsFragment)
+        }
+
         binding.mainToolBar.setOnMenuItemClickListener { menuItem ->
             when (menuItem.itemId) {
                 R.id.menuItemSelectAll -> {

app/src/main/kotlin/com/github/iamrezamousavi/mafia/view/SettingsFragment.kt

@@ -0,0 +1,79 @@
+package com.github.iamrezamousavi.mafia.view
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.AdapterView
+import android.widget.ArrayAdapter
+import androidx.fragment.app.Fragment
+import com.github.iamrezamousavi.mafia.data.local.getLanguage
+import com.github.iamrezamousavi.mafia.data.local.preferences
+import com.github.iamrezamousavi.mafia.data.local.saveLanguage
+import com.github.iamrezamousavi.mafia.data.model.Language
+import com.github.iamrezamousavi.mafia.data.model.toNativeLanguage
+import com.github.iamrezamousavi.mafia.databinding.FragmentSettingsBinding
+
+class SettingsFragment : Fragment() {
+
+    private lateinit var binding: FragmentSettingsBinding
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        binding = FragmentSettingsBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        setupLanguageSpinner()
+    }
+
+    private fun setupLanguageSpinner() {
+        val currentLanguage = requireContext().preferences.getLanguage()
+        val items = Language
+            .entries
+            .map { it.nativeName }
+            .sorted()
+            .let { languages ->
+                listOf(currentLanguage.nativeName) +
+                    languages.filter { it != currentLanguage.nativeName }
+            }
+        val arrayAdapter = ArrayAdapter(
+            requireContext(),
+            android.R.layout.simple_spinner_item,
+            items
+        ).also { adapter ->
+            adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
+        }
+
+        binding.langSpinner.apply {
+            adapter = arrayAdapter
+            onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
+                override fun onItemSelected(
+                    parent: AdapterView<*>,
+                    view: View?,
+                    position: Int,
+                    id: Long
+                ) {
+                    val selectedItem = parent.getItemAtPosition(position).toString()
+                    val newLanguage = selectedItem.toNativeLanguage()
+                    val currentLang = requireContext().preferences.getLanguage()
+                    if (newLanguage != currentLang) {
+                        if (newLanguage != null) {
+                            requireContext().preferences.saveLanguage(newLanguage)
+                            setSelection(0)
+                        }
+                    }
+                }
+
+                @Suppress("EmptyFunctionBlock")
+                override fun onNothingSelected(parent: AdapterView<*>?) {
+                }
+            }
+        }
+    }
+}

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

@@ -4,7 +4,6 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:layoutDirection="rtl"
     tools:context=".MainActivity">
 
     <androidx.fragment.app.FragmentContainerView

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

@@ -31,6 +31,7 @@
         android:id="@+id/playersList"
         android:layout_width="match_parent"
         android:layout_height="0dp"
+        android:layoutDirection="rtl"
         app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
         app:layout_constraintBottom_toTopOf="@id/textField"
         app:layout_constraintEnd_toEndOf="parent"

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

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<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"
+    tools:context=".view.SettingsFragment">
+
+    <com.google.android.material.appbar.AppBarLayout
+        android:id="@+id/settingsAppBar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <com.google.android.material.appbar.MaterialToolbar
+            android:id="@+id/settingsToolBar"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:minHeight="?attr/actionBarSize"
+            app:title="@string/settings"
+            app:titleCentered="true" />
+
+    </com.google.android.material.appbar.AppBarLayout>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:orientation="vertical"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/settingsAppBar">
+
+        <androidx.cardview.widget.CardView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="10dp"
+            app:cardBackgroundColor="@color/md_theme_secondaryContainer"
+            app:cardCornerRadius="5dp">
+
+            <androidx.constraintlayout.widget.ConstraintLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:padding="10dp">
+
+                <TextView
+                    android:id="@+id/textView1"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_margin="10dp"
+                    android:text="@string/language"
+                    android:textColor="@color/md_theme_onSecondaryContainer"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toTopOf="parent" />
+
+                <Spinner
+                    android:id="@+id/langSpinner"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintTop_toTopOf="parent" />
+
+            </androidx.constraintlayout.widget.ConstraintLayout>
+
+        </androidx.cardview.widget.CardView>
+
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -17,6 +17,9 @@
             app:exitAnim="@anim/slide_to_previous"
             app:popEnterAnim="@anim/slide_from_previous"
             app:popExitAnim="@anim/slide_to_next" />
+        <action
+            android:id="@+id/action_mainFragment_to_settingsFragment"
+            app:destination="@id/settingsFragment" />
     </fragment>
     <fragment
         android:id="@+id/roleFragment"
@@ -49,4 +52,9 @@
         android:name="com.github.iamrezamousavi.mafia.view.NarratorFragment"
         android:label="fragment_narrator"
         tools:layout="@layout/fragment_narrator" />
-</navigation>
+    <fragment
+        android:id="@+id/settingsFragment"
+        android:name="com.github.iamrezamousavi.mafia.view.SettingsFragment"
+        android:label="fragment_settings"
+        tools:layout="@layout/fragment_settings" />
+</navigation>