Add navigation component

app/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id 'com.android.application'
     id 'kotlin-android'
+    id 'androidx.navigation.safeargs.kotlin'
 }
 
 android {
@@ -35,13 +36,19 @@ android {
 }
 
 dependencies {
+    implementation "androidx.navigation:navigation-fragment-ktx:$nav_version"
+    implementation "androidx.navigation:navigation-ui-ktx:$nav_version"
+
     implementation "androidx.core:core-ktx:1.7.0"
     implementation "androidx.appcompat:appcompat:1.3.1"
     implementation "com.google.android.material:material:1.4.0"
     implementation "androidx.constraintlayout:constraintlayout:2.1.1"
     implementation "androidx.lifecycle:lifecycle-livedata-ktx:2.4.0"
     implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.4.0"
+
     testImplementation "junit:junit:4.13.2"
+
     androidTestImplementation "androidx.test.ext:junit:1.1.3"
     androidTestImplementation "androidx.test.espresso:espresso-core:3.4.0"
+    androidTestImplementation "androidx.navigation:navigation-testing:$nav_version"
 }

build.gradle

@@ -1,5 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
+    ext.nav_version = "2.3.5"
     repositories {
         google()
         mavenCentral()
@@ -7,6 +8,7 @@ buildscript {
     dependencies {
         classpath "com.android.tools.build:gradle:7.0.3"
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.31"
+        classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files