Added code for changing language

app/build.gradle

@@ -22,7 +22,11 @@ android {
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
-
+    bundle {
+        language {
+            enableSplit = false
+        }
+    }
     buildTypes {
         debug {
             applicationIdSuffix ".debug"
@@ -56,6 +60,7 @@ dependencies {
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.3'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+    implementation 'com.github.prongbang:localization:2.1.2'
 
     implementation 'com.github.angads25:toggle:1.1.0'
 }

app/src/main/java/com/example/gocoronago/MainActivity.kt

@@ -10,8 +10,10 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.fragment.app.Fragment
 import com.example.gocoronago.about.AboutFragment
+import com.example.gocoronago.changeLanguage.ChangeLanguageFragment
 import com.example.gocoronago.ui.main.MainFragment
 import com.github.angads25.toggle.widget.LabeledSwitch
+import com.prongbang.localization.LocalizationAppCompatActivity
 
 private var darkMode = true
 
@@ -71,6 +73,10 @@ open class MainActivity : AppCompatActivity() {
                 super.onBackPressed()
                 true
             }
+            R.id.change_language -> {
+                goToFragment(ChangeLanguageFragment.newInstance())
+                true
+            }
             else -> super.onOptionsItemSelected(item)
         }
     }

app/src/main/java/com/example/gocoronago/changeLanguage/ChangeLanguageFragment.kt

@@ -0,0 +1,107 @@
+package com.example.gocoronago.changeLanguage
+
+import android.R
+import android.os.Bundle
+import android.view.Gravity
+import android.view.LayoutInflater
+import android.view.Menu
+import android.view.View
+import android.view.ViewGroup
+import android.widget.AdapterView
+import android.widget.ArrayAdapter
+import android.widget.Toast
+import androidx.fragment.app.Fragment
+import com.example.gocoronago.MainActivity
+import kotlinx.android.synthetic.main.main_fragment.mySpinner
+
+class ChangeLanguageFragment : Fragment(), AdapterView.OnItemSelectedListener {
+
+    companion object {
+        fun newInstance() = ChangeLanguageFragment()
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View =
+        inflater.inflate(com.example.gocoronago.R.layout.change_language_fragment, container, false)
+
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        setupNavBar()
+        initSpinner()
+    }
+
+    private fun setupNavBar() {
+        (activity as? MainActivity)?.apply {
+            title = getString(com.example.gocoronago.R.string.change_language)
+            supportActionBar?.setDisplayHomeAsUpEnabled(true)
+            supportActionBar?.setHomeButtonEnabled(true)
+        }
+        setHasOptionsMenu(true)
+    }
+
+    override fun onPrepareOptionsMenu(menu: Menu) {
+        menu.findItem(com.example.gocoronago.R.id.change_language)?.isVisible = false
+        super.onPrepareOptionsMenu(menu)
+    }
+
+    private val languageList = listOf(
+        "English",
+        "Czech",
+        "German",
+        "Spanish",
+        "French",
+        "Hindi",
+        "Marathi",
+        "Dutch",
+        "Brazilian - Portuguese",
+        "Mandarin - Simplified"
+    )
+
+
+    private fun initSpinner() {
+        val aa = ArrayAdapter(requireContext(), R.layout.simple_spinner_item, languageList)
+        aa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
+
+        with(mySpinner)
+        {
+            adapter = aa
+            setSelection(0, false)
+            onItemSelectedListener = this@ChangeLanguageFragment
+            prompt = context.getString(com.example.gocoronago.R.string.select_language)
+            gravity = Gravity.CENTER
+        }
+    }
+
+    override fun onNothingSelected(parent: AdapterView<*>?) {
+        showToast(message = getString(com.example.gocoronago.R.string.nothing_selected))
+    }
+
+    override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
+        when (view?.id) {
+            1 -> showToast(
+                message = getString(
+                    com.example.gocoronago.R.string.item_selected_1,
+                    position,
+                    languageList[position]
+                )
+            )
+            else -> {
+                showToast(
+                    message = getString(
+                        com.example.gocoronago.R.string.language_changed,
+                        languageList[position]
+                    )
+                )
+
+            }
+        }
+    }
+
+    private fun showToast(message: String, duration: Int = Toast.LENGTH_SHORT) {
+        Toast.makeText(context, message, duration).show()
+    }
+}

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

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout 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">
+
+    <data>
+
+    </data>
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+
+        <com.toptoche.searchablespinnerlibrary.SearchableSpinner
+            android:id="@+id/mySpinner"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="100dp"
+            android:padding="6dp"
+            android:spinnerMode="dialog"
+            app:layout_constraintTop_toTopOf="parent" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>

app/src/main/res/menu/menu_tracker.xml

@@ -12,4 +12,9 @@
         android:id="@+id/about_us"
         android:title="@string/about_us"
         app:showAsAction="never" />
+
+    <item
+        android:id="@+id/change_language"
+        android:title="@string/change_language"
+        app:showAsAction="never" />
 </menu>

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

@@ -38,5 +38,9 @@
     <string name="social_distancing_text">Keep a safe distance from people whenever possible.</string>
     <string name="loved_ones_text">Stay in touch with your loved ones so that no one feels alone in these tough times.</string>
 
+    <string name="change_language">Change Language</string>
+    <string name="language_changed">Language Changed to %s</string>
+    <string name="select_language">Select Language</string>
+
 
 </resources>

build.gradle

@@ -6,6 +6,7 @@ buildscript {
         google()
         mavenCentral()
         jcenter()
+        maven { url 'https://jitpack.io' }
     }
     dependencies {
         classpath "com.android.tools.build:gradle:$android_plugin_version"
@@ -22,6 +23,7 @@ allprojects {
         google()
         mavenCentral()
         jcenter()
+        maven { url 'https://jitpack.io' }
     }
 }