viewModel to save state

ShakeAndCraft/app/build.gradle

@@ -49,6 +49,8 @@ dependencies {
     implementation 'com.google.ar.sceneform:filament-android:1.17.1'
     implementation 'androidx.navigation:navigation-fragment-ktx:2.5.3'
     implementation 'androidx.navigation:navigation-ui-ktx:2.5.3'
+
+    implementation 'androidx.fragment:fragment-ktx:1.5.6'
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.5'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'

ShakeAndCraft/app/src/main/java/com/example/shakecraft/BossFragment.kt

@@ -16,6 +16,7 @@ import android.view.animation.ScaleAnimation
 import android.widget.ImageView
 import android.widget.ProgressBar
 import android.widget.TextView
+import androidx.fragment.app.activityViewModels
 import androidx.navigation.fragment.findNavController
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
@@ -24,6 +25,7 @@ import com.example.shakecraft.model.Generator
 import com.example.shakecraft.model.Item
 import com.example.shakecraft.model.Player
 import com.example.shakecraft.view.adapter.AdapterBossLoot
+import com.example.shakecraft.viewmodel.MainViewModel
 import kotlin.math.pow
 import kotlin.math.sqrt
 
@@ -38,6 +40,7 @@ class BossFragment() : Fragment() {
     private lateinit var buttonCollect: TextView
     private lateinit var recyclerView: RecyclerView
     private lateinit var boss: Boss
+    val viewModel : MainViewModel by activityViewModels<MainViewModel>()
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -47,7 +50,6 @@ class BossFragment() : Fragment() {
         savedInstanceState: Bundle?
     ): View? {
 
-        val currentPlayer = (activity as MainActivity).currentPlayer
         val view = inflater.inflate(R.layout.fragment_boss, container, false)
 
         // Initialize views
@@ -61,7 +63,7 @@ class BossFragment() : Fragment() {
         setUpRecyclerView(view)
 
         // Set up accelerometer listener
-        setUpAccelerometerListener(view, currentPlayer)
+        setUpAccelerometerListener(view, viewModel.currentPlayer)
 
         // Set up activity orientation
         setUpActivityOrientation()

ShakeAndCraft/app/src/main/java/com/example/shakecraft/CollectFragment.kt

@@ -16,12 +16,14 @@ import android.view.ViewGroup
 import android.widget.ImageView
 import android.widget.ProgressBar
 import android.widget.TextView
+import androidx.fragment.app.activityViewModels
 
 import androidx.navigation.fragment.findNavController
 
 import com.example.shakecraft.model.Generator
 import com.example.shakecraft.model.Item
 import com.example.shakecraft.model.Player
+import com.example.shakecraft.viewmodel.MainViewModel
 
 
 import kotlin.math.pow
@@ -34,6 +36,7 @@ class CollectFragment() : Fragment() {
     private lateinit var accelerometerEventListener: SensorEventListener
     private lateinit var progressBar: ProgressBar
     private lateinit var buttonBack: TextView
+    val viewModel : MainViewModel by activityViewModels<MainViewModel>()
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -44,14 +47,13 @@ class CollectFragment() : Fragment() {
         savedInstanceState: Bundle?
     ): View? {
 
-        val currentPlayer = (activity as MainActivity).currentPlayer
         val view = inflater.inflate(R.layout.fragment_collect, container, false)
 
         // Initialize views
         initializeViews(view)
 
         // Set up accelerometer listener
-        setUpAccelerometerListener(view,currentPlayer)
+        setUpAccelerometerListener(view,viewModel.currentPlayer)
 
         // Set up activity orientation
         setUpActivityOrientation()

ShakeAndCraft/app/src/main/java/com/example/shakecraft/CraftFragment.kt

@@ -8,6 +8,7 @@ import android.view.ViewGroup
 import android.widget.Button
 import android.widget.ImageView
 import android.widget.TextView
+import androidx.fragment.app.activityViewModels
 import androidx.navigation.fragment.findNavController
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
@@ -15,7 +16,7 @@ import com.example.shakecraft.model.Player
 import com.example.shakecraft.model.Recipe
 import com.example.shakecraft.model.RecipeManager
 import com.example.shakecraft.view.adapter.AdapterMaterials
-
+import com.example.shakecraft.viewmodel.MainViewModel
 
 
 class CraftFragment : Fragment() {
@@ -26,6 +27,7 @@ class CraftFragment : Fragment() {
     private lateinit var name: TextView
     private lateinit var buttonForge: Button
     private lateinit var numberCraftable: TextView
+    val viewModel : MainViewModel by activityViewModels<MainViewModel>()
 
 
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -38,12 +40,11 @@ class CraftFragment : Fragment() {
     ): View? {
 
 
-        val currentPlayer = (activity as MainActivity).currentPlayer
         val view = inflater.inflate(R.layout.fragment_craft, container, false)
         recipe = arguments?.getParcelable("recipe")!!
 
-        initializeViews(view, currentPlayer)
-        setUpRecyclerView(view,currentPlayer)
+        initializeViews(view, viewModel.currentPlayer)
+        setUpRecyclerView(view,viewModel.currentPlayer)
         return view
     }
 

ShakeAndCraft/app/src/main/java/com/example/shakecraft/ForgeFragment.kt

@@ -15,6 +15,7 @@ import com.example.shakecraft.model.RecipeManager
 import com.example.shakecraft.view.adapter.AdapterRecipe
 
 
+
 class ForgeFragment : Fragment(), AdapterRecipe.OnItemClickListener {
     private lateinit var buttonBack: TextView
     private lateinit var recyclerViewObjects: RecyclerView

ShakeAndCraft/app/src/main/java/com/example/shakecraft/HomeFragment.kt

@@ -11,9 +11,11 @@ import android.widget.ImageView
 import android.widget.ProgressBar
 import android.widget.TextView
 import androidx.constraintlayout.widget.ConstraintLayout
+import androidx.fragment.app.activityViewModels
 import androidx.navigation.NavOptions
 import androidx.navigation.fragment.findNavController
 import com.example.shakecraft.model.Player
+import com.example.shakecraft.viewmodel.MainViewModel
 
 
 class HomeFragment : Fragment() {
@@ -29,6 +31,7 @@ class HomeFragment : Fragment() {
     private lateinit var playermage : ImageView
     private lateinit var equipeditem: ImageView
     private lateinit var eventFishing: ImageView
+    val viewModel : MainViewModel by activityViewModels<MainViewModel>()
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -39,12 +42,11 @@ class HomeFragment : Fragment() {
         inflater: LayoutInflater, container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        val currentPlayer = (activity as MainActivity).currentPlayer
         val isRaining = (activity as MainActivity).isRaining
         val view = inflater.inflate(R.layout.fragment_home,container,false)
 
         // Initialize views
-        initializeViews(view, currentPlayer, isRaining)
+        initializeViews(view, viewModel.currentPlayer, isRaining)
 
         return view
     }

ShakeAndCraft/app/src/main/java/com/example/shakecraft/InventoryFragment.kt

@@ -5,34 +5,36 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.Toast
+import androidx.fragment.app.activityViewModels
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
-import com.example.shakecraft.model.Player
 import com.example.shakecraft.model.Tool
 import com.example.shakecraft.view.adapter.AdapterInventory
+import com.example.shakecraft.viewmodel.MainViewModel
 
 
 class InventoryFragment() : Fragment( ), AdapterInventory.OnItemLongClickListener {
-    private lateinit var currentPlayer: Player
     private lateinit var recyclerView: RecyclerView
+    val viewModel : MainViewModel by activityViewModels<MainViewModel>()
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
     }
 
     override fun onItemLongClick(position: Int) {
-        if(currentPlayer.items[position] is Tool) {
-            if (currentPlayer.equipeItem(currentPlayer.items[position]) == true)
+        if(viewModel.currentPlayer.items[position] is Tool) {
+            if (viewModel.currentPlayer.equipeItem(viewModel.currentPlayer.items[position]) == true)
 
                 Toast.makeText(
                     context,
-                    currentPlayer.items[position].type.name + " was well equipped",
+                    viewModel.currentPlayer.items[position].type.name + " was well equipped",
                     Toast.LENGTH_SHORT
                 ).show()
             else
                 Toast.makeText(
                     context,
-                    currentPlayer.items[position].type.name + " has been well unequipped",
+                    viewModel.currentPlayer.items[position].type.name + " has been well unequipped",
                     Toast.LENGTH_SHORT
                 ).show()
             setUpRecyclerView(view?.parent as ViewGroup, this)
@@ -43,7 +45,6 @@ class InventoryFragment() : Fragment( ), AdapterInventory.OnItemLongClickListene
         inflater: LayoutInflater, container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        currentPlayer = (activity as MainActivity).currentPlayer
         val view = inflater.inflate(R.layout.fragment_inventory, container, false)
 
         // Initialize views
@@ -55,9 +56,10 @@ class InventoryFragment() : Fragment( ), AdapterInventory.OnItemLongClickListene
         recyclerView = view.findViewById(R.id.recyclerviewInventory)
         with(recyclerView) {
             layoutManager = LinearLayoutManager(view.context)
-            adapter = AdapterInventory(currentPlayer.items, listener , currentPlayer)
+            adapter = AdapterInventory(viewModel.currentPlayer.items, listener , viewModel.currentPlayer)
         }
     }
 
 
+
 }

ShakeAndCraft/app/src/main/java/com/example/shakecraft/MainActivity.kt

@@ -8,11 +8,12 @@ import androidx.annotation.RequiresApi
 import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.WindowInsetsControllerCompat
+import androidx.lifecycle.ViewModelProvider
 import androidx.navigation.findNavController
 import androidx.navigation.ui.NavigationUI
 import androidx.navigation.ui.setupWithNavController
-import com.example.shakecraft.data.Stub
 import com.example.shakecraft.services.OpenWeatherMapService
+import com.example.shakecraft.viewmodel.MainViewModel
 import com.google.android.material.bottomnavigation.BottomNavigationView
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.GlobalScope
@@ -24,8 +25,8 @@ import retrofit2.converter.gson.GsonConverterFactory
 
 class MainActivity: AppCompatActivity() {
 
-    var currentPlayer = Stub().load()
     var isRaining = false
+    private lateinit var viewModel: MainViewModel
 
 
     @RequiresApi(Build.VERSION_CODES.R)
@@ -47,6 +48,7 @@ class MainActivity: AppCompatActivity() {
         super.onCreate(savedInstanceState)
         hideSystemUI()
         setContentView(R.layout.activity_main)
+        viewModel = ViewModelProvider(this).get(MainViewModel::class.java)
 
         val apiKey = "85a2724ad38b3994c2b7ebe1d239bbff"
         val cityName = "Clermont-Ferrand"
@@ -102,4 +104,5 @@ class MainActivity: AppCompatActivity() {
 
 
 
+
 }

ShakeAndCraft/app/src/main/java/com/example/shakecraft/viewmodel/MainViewModel.kt

@@ -0,0 +1,10 @@
+package com.example.shakecraft.viewmodel
+
+import androidx.lifecycle.ViewModel
+import com.example.shakecraft.data.Stub
+import com.example.shakecraft.model.Player
+
+class MainViewModel : ViewModel() {
+
+    var currentPlayer : Player = Stub().load()
+}