adding safeargs for parsing in types of data

Author: kevinmainairungu

app/build.gradle

@@ -20,6 +20,8 @@ apply plugin: 'kotlin-android'
 
 apply plugin: 'kotlin-kapt'
 apply plugin: 'kotlin-android-extensions'
+apply plugin: 'androidx.navigation.safeargs'
+
 
 android {
     compileSdkVersion 28

app/src/main/java/com/example/android/navigation/GameFragment.kt

@@ -99,10 +99,11 @@ class GameFragment : Fragment() {
                         binding.invalidateAll()
                     } else {
                         // We've won!  Navigate to the gameWonFragment.
-                        view.findNavController().navigate(R.id.action_gameFragment_to_gameWonFragment)
+                        view.findNavController().navigate(GameFragmentDirections.actionGameFragmentToGameWonFragment(numQuestions, questionIndex))
                     }
                 } else {
-                            view.findNavController().navigate(R.id.action_gameFragment_to_gameOverFragment2)
+//                        We've lost! Navigate to the gameLostFragment
+                        view.findNavController().navigate(GameFragmentDirections.actionGameFragmentToGameOverFragment2())
                 }
             }
         }

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

@@ -47,6 +47,12 @@
             android:id="@+id/action_gameWonFragment_to_gameFragment"
             app:destination="@id/gameFragment"
             app:popUpTo="@id/gameFragment" />
+        <argument
+            android:name="numQuestions"
+            app:argType="integer" />
+        <argument
+            android:name="numCorrect"
+            app:argType="integer" />
     </fragment>
     <fragment
         android:id="@+id/aboutFragment"

build.gradle

@@ -31,6 +31,7 @@ buildscript {
     dependencies {
         classpath 'com.android.tools.build:gradle:3.3.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$version_kotlin"
+        classpath "android.arch.navigation:navigation-safe-args-gradle-plugin:$version_navigation"
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files