MOB-36 basic setup for navigation completed

MobileAuthApp/app/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id 'com.android.application'
     id 'kotlin-android'
+    id 'androidx.navigation.safeargs.kotlin'
 }
 
 android {
@@ -22,6 +23,9 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+    buildFeatures {
+        viewBinding true
+    }
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
@@ -37,7 +41,12 @@ dependencies {
     implementation 'androidx.appcompat:appcompat:1.3.1'
     implementation 'com.google.android.material:material:1.4.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     testImplementation 'junit:junit:4.+'
     androidTestImplementation 'androidx.test.ext:junit:1.1.3'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+
+    //For navigation component
+    implementation "androidx.navigation:navigation-fragment-ktx:$nav_version"
+    implementation "androidx.navigation:navigation-ui-ktx:$nav_version"
 }

MobileAuthApp/app/src/main/java/com/tarkvaraprojekt/mobileauthapp/HomeFragment.kt

@@ -0,0 +1,27 @@
+package com.tarkvaraprojekt.mobileauthapp
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import com.tarkvaraprojekt.mobileauthapp.databinding.FragmentHomeBinding
+
+class HomeFragment : Fragment() {
+
+    private var binding: FragmentHomeBinding? = null
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        binding = FragmentHomeBinding.inflate(inflater, container, false)
+        return binding!!.root
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        binding = null
+    }
+}

MobileAuthApp/app/src/main/java/com/tarkvaraprojekt/mobileauthapp/MainActivity.kt

@@ -2,10 +2,20 @@ package com.tarkvaraprojekt.mobileauthapp
 
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import androidx.navigation.NavController
+import androidx.navigation.fragment.NavHostFragment
+import com.tarkvaraprojekt.mobileauthapp.databinding.ActivityMainBinding
 
 class MainActivity : AppCompatActivity() {
+
+    private lateinit var navigationController: NavController
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_main)
+        val binding = ActivityMainBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        val navHostFragment = supportFragmentManager.findFragmentById(R.id.nav_host_fragment) as NavHostFragment
+        navigationController = navHostFragment.navController
     }
 }

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

@@ -6,13 +6,12 @@
     android:layout_height="match_parent"
     tools:context=".MainActivity">
 
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Hello World!"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+    <androidx.fragment.app.FragmentContainerView
+        android:id="@+id/nav_host_fragment"
+        android:name="androidx.navigation.fragment.NavHostFragment"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:defaultNavHost="true"
+        app:navGraph="@navigation/nav_graph" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>

MobileAuthApp/app/src/main/res/layout/fragment_home.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".HomeFragment">
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:text="@string/home_fragment" />
+
+</FrameLayout>

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

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<navigation 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:id="@+id/nav_graph"
+    app:startDestination="@id/homeFragment">
+
+    <fragment
+        android:id="@+id/homeFragment"
+        android:name="com.tarkvaraprojekt.mobileauthapp.HomeFragment"
+        android:label="fragment_home"
+        tools:layout="@layout/fragment_home" />
+</navigation>

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

@@ -1,3 +1,5 @@
 <resources>
     <string name="app_name">Mobile Auth App</string>
+    <!-- TODO: Remove or change this placeholder text -->
+    <string name="home_fragment">To make sure that fragment is displayed</string>
 </resources>