Implement multi-language support with language selection screen

app/src/main/java/com/example/updateapp/Helpers/LocaleHelper.java

@@ -0,0 +1,47 @@
+package com.example.updateapp.Helpers;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.res.Configuration;
+import android.os.Build;
+
+import java.util.Locale;
+
+public class LocaleHelper {
+    private static final String PREFS_NAME = "app_prefs";
+    private static final String KEY_LANGUAGE = "selected_language";
+
+    public static void setLocale(Context context, String languageCode) {
+        Locale locale = new Locale(languageCode);
+        Locale.setDefault(locale);
+
+        // Save language preference
+        SharedPreferences prefs = context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
+        prefs.edit().putString(KEY_LANGUAGE, languageCode).apply();
+
+        // Note: Configuration update is handled by attachBaseContext when activity is recreated
+        // This avoids using deprecated updateConfiguration method
+    }
+
+    public static Context attachBaseContext(Context context) {
+        String languageCode = getSavedLanguage(context);
+        Locale locale = new Locale(languageCode);
+        Locale.setDefault(locale);
+
+        Configuration configuration = context.getResources().getConfiguration();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            configuration.setLocale(locale);
+            return context.createConfigurationContext(configuration);
+        } else {
+            configuration.locale = locale;
+            context.getResources().updateConfiguration(configuration, context.getResources().getDisplayMetrics());
+            return context;
+        }
+    }
+
+    public static String getSavedLanguage(Context context) {
+        SharedPreferences prefs = context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
+        return prefs.getString(KEY_LANGUAGE, "en"); // Default to English
+    }
+}
+

app/src/main/java/com/example/updateapp/MainActivity.java

@@ -5,6 +5,7 @@
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentTransaction;
+import com.example.updateapp.Helpers.LocaleHelper;
 import com.example.updateapp.databinding.ActivityMainBinding;
 import com.example.updateapp.utils.LocaleHelper;
 import com.example.updateapp.views.fragments.ChatbotFragment;

app/src/main/java/com/example/updateapp/UpdateAppApplication.java

@@ -0,0 +1,14 @@
+package com.example.updateapp;
+
+import android.app.Application;
+import android.content.Context;
+
+import com.example.updateapp.Helpers.LocaleHelper;
+
+public class UpdateAppApplication extends Application {
+    @Override
+    protected void attachBaseContext(Context base) {
+        super.attachBaseContext(LocaleHelper.attachBaseContext(base));
+    }
+}
+

app/src/main/java/com/example/updateapp/adapters/LanguageAdapter.java

@@ -79,4 +79,4 @@ public LanguageViewHolder(@NonNull View itemView) {
             imgSelected = itemView.findViewById(R.id.img_selected);
         }
     }
-}
+}

app/src/main/java/com/example/updateapp/models/LanguageModel.java

@@ -44,4 +44,4 @@ public boolean isSelected() {
     public void setSelected(boolean selected) {
         isSelected = selected;
     }
-}
+}

app/src/main/java/com/example/updateapp/views/activites/LanguageActivity.java

@@ -7,6 +7,7 @@
 import android.widget.Toast;
 
 import androidx.activity.EdgeToEdge;
+import androidx.activity.OnBackPressedCallback;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.graphics.Insets;
 import androidx.core.view.ViewCompat;
@@ -32,6 +33,11 @@ public class LanguageActivity extends AppCompatActivity implements LanguageAdapt
     private TextView txtTitle;
     private int selectedPosition = 0;
 
+    private RecyclerView recyclerView;
+    private LanguageAdapter adapter;
+    private List<LanguageModel> languageList;
+    private String currentLanguageCode;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

app/src/main/java/com/example/updateapp/views/activites/LoginActivity.java

@@ -12,6 +12,7 @@
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
 
+import com.example.updateapp.Helpers.LocaleHelper;
 import com.example.updateapp.MainActivity;
 import com.example.updateapp.R;
 import com.example.updateapp.databinding.ActivityLoginBinding;
@@ -222,7 +223,7 @@ public void onComplete(@NonNull Task<AuthResult> task) {
                         this,
                         getString(R.string.google_signin_error, e.getStatusCode(), e.getMessage()),
                         Toast.LENGTH_LONG
-                ).show();
+                )                .show();
             }
         }
     }

app/src/main/java/com/example/updateapp/views/activites/NewUpdateActivity.java

@@ -11,6 +11,7 @@
 import androidx.core.view.ViewCompat;
 import androidx.core.view.WindowInsetsCompat;
 
+import com.example.updateapp.Helpers.LocaleHelper;
 import com.example.updateapp.R;
 import com.example.updateapp.databinding.ActivityNewUpdateBinding;
 import com.example.updateapp.utils.LocaleHelper;

app/src/main/java/com/example/updateapp/views/activites/OTPActivity.java

@@ -16,6 +16,7 @@
 import androidx.core.view.ViewCompat;
 import androidx.core.view.WindowInsetsCompat;
 
+import com.example.updateapp.Helpers.LocaleHelper;
 import com.example.updateapp.MainActivity;
 import com.example.updateapp.R;
 import com.example.updateapp.databinding.ActivityOtpactivityBinding;

app/src/main/java/com/example/updateapp/views/activites/OnboardingActivity.java

@@ -13,6 +13,7 @@
 import androidx.cardview.widget.CardView;
 import androidx.viewpager.widget.ViewPager;
 
+import com.example.updateapp.Helpers.LocaleHelper;
 import com.example.updateapp.Helpers.SaveState;
 import com.example.updateapp.R;
 import com.example.updateapp.adapters.OnboardingAdapter;

app/src/main/java/com/example/updateapp/views/activites/SignUpActivity.java

@@ -11,6 +11,7 @@
 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
 
+import com.example.updateapp.Helpers.LocaleHelper;
 import com.example.updateapp.R;
 import com.example.updateapp.databinding.ActivitySignUpBinding;
 import com.example.updateapp.utils.LocaleHelper;

app/src/main/java/com/example/updateapp/views/activites/SplashScreenActivity.java

@@ -11,6 +11,8 @@
 import androidx.core.view.ViewCompat;
 import androidx.core.view.WindowInsetsCompat;
 
+import com.example.updateapp.Helpers.LocaleHelper;
+import com.example.updateapp.Helpers.SaveState;
 import com.example.updateapp.R;
 import com.example.updateapp.utils.LocaleHelper;
 
@@ -28,21 +30,36 @@ protected void onCreate(Bundle savedInstanceState) {
         );
         setContentView(R.layout.activity_splash_screen);
 
+        // Check if language has been selected before
+        SaveState languageState = new SaveState(this, "LANGUAGE_SELECTED");
+        boolean languageSelected = languageState.getState() == 1;
 
         new Timer().schedule(new TimerTask() {
             @Override
             public void run() {
                 runOnUiThread(new Runnable() {
                     @Override
                     public void run() {
-                        Intent intent = new Intent();
-                        intent.setClass(SplashScreenActivity.this, OnboardingActivity.class);
+                        Intent intent;
+                        if (!languageSelected) {
+                            // Show language selection screen on first launch
+                            intent = new Intent(SplashScreenActivity.this, LanguageActivity.class);
+                            intent.putExtra("isFirstLaunch", true);
+                        } else {
+                            // Go to onboarding
+                            intent = new Intent(SplashScreenActivity.this, OnboardingActivity.class);
+                        }
                         startActivity(intent);
                         finish();
                     }
                 });
             }
-        },500);
+        }, 500);
+    }
+
+    @Override
+    protected void attachBaseContext(Context newBase) {
+        super.attachBaseContext(LocaleHelper.attachBaseContext(newBase));
     }
 
     @Override

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

@@ -73,7 +73,7 @@
         android:layout_below="@+id/rel_top">
 
         <androidx.recyclerview.widget.RecyclerView
-            android:id="@+id/rev_langauge"
+            android:id="@+id/rev_language"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
             android:clipToPadding="false"

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

@@ -40,4 +40,4 @@
         android:layout_marginEnd="-20dp"
         android:background="#F0F0F0" />
 
-</RelativeLayout>
+</RelativeLayout>

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

@@ -106,4 +106,4 @@
     <string name="back_to">العودة إلى</string>
     <string name="forget_password_button">نسيت كلمة المرور</string>
     <string name="check_email">يرجى التحقق من بريدك الإلكتروني</string>
-</resources>
+</resources>

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

@@ -106,4 +106,4 @@
     <string name="back_to">ফিরে যান</string>
     <string name="forget_password_button">পাসওয়ার্ড ভুলে গেছেন</string>
     <string name="check_email">অনুগ্রহ করে আপনার ইমেইল চেক করুন</string>
-</resources>
+</resources>

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

@@ -106,4 +106,4 @@
     <string name="back_to">Volver a</string>
     <string name="forget_password_button">OLVIDÉ MI CONTRASEÑA</string>
     <string name="check_email">Por Favor Revisa Tu Email</string>
-</resources>
+</resources>

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

@@ -106,4 +106,4 @@
     <string name="back_to">Retour à</string>
     <string name="forget_password_button">MOT DE PASSE OUBLIÉ</string>
     <string name="check_email">Veuillez Vérifier Votre Email</string>
-</resources>
+</resources>

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

@@ -106,4 +106,4 @@
     <string name="back_to">वापस जाएं</string>
     <string name="forget_password_button">पासवर्ड भूल गए</string>
     <string name="check_email">कृपया अपना ईमेल जांचें</string>
-</resources>
+</resources>

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

@@ -106,4 +106,4 @@
     <string name="back_to">Voltar para</string>
     <string name="forget_password_button">ESQUECI A SENHA</string>
     <string name="check_email">Por Favor Verifique Seu Email</string>
-</resources>
+</resources>

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

@@ -106,4 +106,4 @@
     <string name="back_to">Вернуться к</string>
     <string name="forget_password_button">ЗАБЫЛИ ПАРОЛЬ</string>
     <string name="check_email">Пожалуйста, Проверьте Ваш Email</string>
-</resources>
+</resources>

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

@@ -106,4 +106,4 @@
     <string name="back_to">واپس جائیں</string>
     <string name="forget_password_button">پاس ورڈ بھول گئے</string>
     <string name="check_email">براہ کرم اپنا ای میل چیک کریں</string>
-</resources>
+</resources>

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

@@ -106,4 +106,4 @@
     <string name="otp_verification_failed">验证码验证失败</string>
     <string name="otp_error">验证码错误: %1$s</string>
     <string name="auth_error_user_not_found">身份验证错误：登录后未找到用户</string>
-</resources>
+</resources>