fixed fragment crash

Author: sijan8s3

app/build.gradle

@@ -37,12 +37,14 @@ dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     implementation 'androidx.appcompat:appcompat:1.3.0'
-    implementation 'androidx.core:core-ktx:1.5.0'
+    implementation 'androidx.core:core-ktx:1.6.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
     testImplementation 'junit:junit:4.13.2'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
-    implementation 'com.google.android.material:material:1.3.0'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+    implementation 'com.google.android.material:material:1.4.0'
+    implementation 'androidx.fragment:fragment-ktx:1.3.5'
+
 
     // Architectural Components
     implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:2.3.1"

app/src/main/AndroidManifest.xml

@@ -11,6 +11,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.MVVMNews">
+
         <activity android:name=".ui.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

app/src/main/java/com/sijanneupane/mvvmnews/ui/MainActivity.kt

@@ -3,6 +3,7 @@ package com.sijanneupane.mvvmnews.ui
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
 import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.NavHostFragment
 import androidx.navigation.fragment.findNavController
 import androidx.navigation.ui.setupWithNavController
 import com.sijanneupane.mvvmnews.R
@@ -21,8 +22,9 @@ class MainActivity : AppCompatActivity() {
         val repository= NewsRepository(ArticleDatabase(this))
         val viewModelProviderFactory= NewsViewModelProviderFactory(repository)
         viewModel= ViewModelProvider(this, viewModelProviderFactory).get(NewsViewModel::class.java)
-
-        bottomNavigationView.setupWithNavController(newsNavHostFrag.findNavController())
+        val navHostFragment= supportFragmentManager.findFragmentById(R.id.newsNavHostFrag) as NavHostFragment
+        val navController= navHostFragment.navController
+        bottomNavigationView.setupWithNavController(navController)
 
 
     }

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

@@ -16,7 +16,7 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent">
 
-        <fragment
+        <androidx.fragment.app.FragmentContainerView
             android:id="@+id/newsNavHostFrag"
             android:name="androidx.navigation.fragment.NavHostFragment"
             android:layout_width="match_parent"

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

@@ -1,7 +1,7 @@
 <?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"
-    android:id="@+id/news_nav_graph.xml"
+    android:id="@+id/news_nav_graph"
     app:startDestination="@id/breakingNewsFragment">
 
     <fragment

build.gradle

@@ -6,7 +6,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath "com.android.tools.build:gradle:4.2.1"
+        classpath 'com.android.tools.build:gradle:4.2.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "androidx.navigation:navigation-safe-args-gradle-plugin:2.3.5"