Refactor: separated everything to different activities

app/src/main/AndroidManifest.xml

@@ -25,7 +25,11 @@
             android:theme="@style/Theme.BarcodeScannerForEmployees"
             tools:targetApi="31">
         <activity
-                android:name=".FullscreenActivity"
+                android:name=".activities.AddProductActivity"
+                android:exported="false"
+                android:theme="@style/Theme.BarcodeScannerForEmployees"/>
+        <activity
+                android:name=".activities.FullscreenActivity"
                 android:configChanges="orientation|keyboardHidden|screenSize"
                 android:exported="false"
                 android:label="@string/title_activity_fullscreen"
@@ -33,20 +37,21 @@
 
         <provider
                 android:name="androidx.core.content.FileProvider"
-                android:authorities="com.google.firebase.components.MainActivity.provider;com.google.firebase.components.FullscreenActivity.provider"
+                android:authorities="com.google.firebase.components.activities.StorageActivity.provider;com.google.firebase.components.activities.FullscreenActivity.provider;com.google.firebase.components.activities.AddProductActivity.provider"
                 android:exported="false"
                 android:grantUriPermissions="true">
             <meta-data
                     android:name="android.support.FILE_PROVIDER_PATHS"
                     android:resource="@xml/file_path"/>
         </provider>
+
         <meta-data
                 android:name="com.google.mlkit.vision.DEPENDENCIES"
                 android:value="barcode_ui">
         </meta-data>
 
         <activity
-                android:name=".MainActivity"
+                android:name=".activities.StorageActivity"
                 android:exported="true"
                 android:theme="@style/Theme.BarcodeScannerForEmployees">
             <intent-filter>

app/src/main/java/org/foxarmy/barcodescannerforemployees/MainScreenFragment.kt

@@ -1,42 +0,0 @@
-package org.foxarmy.barcodescannerforemployees
-
-import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.fragment.app.Fragment
-import org.foxarmy.barcodescannerforemployees.databinding.FragmentSecondBinding
-
-/**
- * A simple [Fragment] subclass as the second destination in the navigation.
- */
-class MainScreenFragment : Fragment() {
-
-    private var _binding: FragmentSecondBinding? = null
-
-    // This property is only valid between onCreateView and
-    // onDestroyView.
-    private val binding get() = _binding!!
-
-    override fun onCreateView(
-        inflater: LayoutInflater, container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View {
-        _binding = FragmentSecondBinding.inflate(inflater, container, false)
-        return binding.root
-
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-
-//        binding..setOnClickListener {
-//            findNavController().navigate(R.id.action_SecondFragment_to_FirstFragment)
-//        }
-    }
-
-    override fun onDestroyView() {
-        super.onDestroyView()
-        _binding = null
-    }
-}

app/src/main/java/org/foxarmy/barcodescannerforemployees/activities/AddProductActivity.kt

@@ -1,59 +1,131 @@
-package org.foxarmy.barcodescannerforemployees
+package org.foxarmy.barcodescannerforemployees.activities
 
+import android.Manifest
 import android.content.ContentValues
 import android.os.Build
 import android.os.Bundle
 import android.util.Log
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
+import android.widget.Button
+import android.widget.ImageView
+import android.widget.TextView
 import android.widget.Toast
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.annotation.RequiresApi
-import androidx.fragment.app.Fragment
-import androidx.navigation.fragment.findNavController
+import androidx.appcompat.app.AppCompatActivity
 import com.google.mlkit.vision.barcode.common.Barcode
 import com.google.mlkit.vision.codescanner.GmsBarcodeScannerOptions
 import com.google.mlkit.vision.codescanner.GmsBarcodeScanning
-import org.foxarmy.barcodescannerforemployees.databinding.AddProductFragmentBinding
+import org.foxarmy.barcodescannerforemployees.*
+import org.foxarmy.barcodescannerforemployees.databinding.ActivityAddProductBinding
 import java.io.File
 import java.nio.file.Files
 import java.nio.file.StandardCopyOption
 
+class AddProductActivity : AppCompatActivity() {
+    private lateinit var imageView: ImageView
 
-class AddProductFragment : Fragment() {
+    private lateinit var saveButton: Button
+    private lateinit var takePictureButton: Button
+    private lateinit var scanButton: Button
+
+    private lateinit var productNameText: TextView
+    private lateinit var netWeightText: TextView
 
-    private var _binding: AddProductFragmentBinding? = null
     private lateinit var pictureFile: File
-    private val binding get() = _binding!!
     private lateinit var picturesPath: File
+    private lateinit var binding: ActivityAddProductBinding
 
-    override fun onCreateView(
-        inflater: LayoutInflater, container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
 
-        picturesPath = File(requireContext().filesDir, "pictures")
+        setContentView(R.layout.fragment_add_product)
+
+
+        picturesPath = File(filesDir, "pictures")
         picturesPath.mkdirs()
+//        imageView = binding.includeContent.addProductLayout
+        imageView = findViewById(R.id.imageView)
+
+        saveButton = findViewById(R.id.saveButton)
+        takePictureButton = findViewById(R.id.takePictureButton)
+        scanButton = findViewById(R.id.scan_button)
+
+        productNameText = findViewById(R.id.productName)
+        netWeightText = findViewById(R.id.netWeight)
+
+        saveButton.setOnClickListener {
+            val productName = productNameText.text.toString()
+            val netWeight = netWeightText.text
+            if (!this::pictureFile.isInitialized || !pictureFile.exists()) {
+                Toast.makeText(this, "Please, make a picture of a product!", Toast.LENGTH_SHORT).show()
+                return@setOnClickListener
+            }
+
+            if (productName == "") {
+                Toast.makeText(this, "Please, write a name of a product!", Toast.LENGTH_SHORT).show()
+                return@setOnClickListener
+            }
+            if (netWeight.toString() == "" || netWeight.toString().toDoubleOrNull() == null) {
+                Toast.makeText(this, "Please, write a valid net weight of a product!", Toast.LENGTH_SHORT).show()
+            }
+
+            val db = DBStorageController(this).writableDatabase
+            Log.d("QWERTYUIOP", "Putting ${pictureFile.name}")
+            val values = ContentValues().apply {
+                put(ProductContract.ProductEntry.PRODUCT_NAME, productName)
+                put(ProductContract.ProductEntry.PRODUCT_NET_WEIGHT, netWeight.toString())
+                put(ProductContract.ProductEntry.IMAGE_FILENAME, pictureFile.nameWithoutExtension)
+            }
+
+            db.insert(ProductContract.ProductEntry.TABLE_NAME, null, values)
+
+            finish()
+        }
+
+        takePictureButton.setOnClickListener {
+            Log.d("QWERTYUIOP", "test")
+            requestPermissionLauncher.launch(Manifest.permission.CAMERA)
+        }
+
+        scanButton.setOnClickListener {
+            val options = GmsBarcodeScannerOptions.Builder()
+                .setBarcodeFormats(
+                    Barcode.FORMAT_EAN_13
+                )
+                .build()
+            val scanner = GmsBarcodeScanning.getClient(this)
+            scanner.startScan()
+                .addOnSuccessListener { barcode ->
+                    productNameText.setText(barcode.rawValue)
+                }
+                .addOnFailureListener { e ->
+                    Toast.makeText(
+                        this,
+                        "Failed to scan barcode. Please, try again or enter data manually",
+                        Toast.LENGTH_LONG
+                    ).show()
+                }
+        }
+
+//        binding = ActivityAddProductBinding.inflate(layoutInflater)
+
+//        setContentView(binding.root)
 
-        _binding = AddProductFragmentBinding.inflate(inflater, container, false)
-        return binding.root
     }
-
     @RequiresApi(Build.VERSION_CODES.R)
     val takePicture = registerForActivityResult(ActivityResultContracts.TakePicture()) { success: Boolean ->
         if (success) {
             //Move picture to a proper directory according to its calculated hash
-            val tempfile = File(requireContext().filesDir, "image.png")
+            val tempfile = File(filesDir, "image.png")
             val imageContent = tempfile.inputStream().readBytes()
             val imageHash = imageContent.toString(Charsets.UTF_8).md5()
 
             pictureFile = File(picturesPath, "$imageHash.png")
             Files.move(tempfile.toPath(), pictureFile.toPath(), StandardCopyOption.REPLACE_EXISTING)
             tempfile.delete()
-            generateThumbnailForImage(context!!, imageHash)
+            generateThumbnailForImage(this, imageHash)
 
-            binding.imageView.setImageURI(getImageUri(requireActivity(), pictureFile))
+            imageView.setImageURI(getImageUri(this, pictureFile))
             Log.i("QWERTYUIOP", "Picture saved")
         } else {
             Log.e("QWERTYUIOP", "Cannot save a picture")
@@ -63,8 +135,8 @@ class AddProductFragment : Fragment() {
     @RequiresApi(Build.VERSION_CODES.R)
     fun getPicture () {
         //Saving picture to a temp file for further hash calculation and moving to a proper directory
-        val imageFile = File(requireContext().filesDir, "image.png")
-        val imageUri = getImageUri(requireActivity(), imageFile)
+        val imageFile = File(this.filesDir, "image.png")
+        val imageUri = getImageUri(this, imageFile)
         takePicture.launch(imageUri)
     }
 
@@ -76,71 +148,7 @@ class AddProductFragment : Fragment() {
             if (isGranted) {
                 getPicture()
             } else {
-                Toast.makeText(requireContext(), "I need permission in order to take a picture", Toast.LENGTH_LONG).show()
+                Toast.makeText(this, "I need permission in order to take a picture", Toast.LENGTH_LONG).show()
             }
         }
-
-    @RequiresApi(Build.VERSION_CODES.R)
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-
-        binding.saveButton.setOnClickListener {
-            val productName = binding.productName.text.toString()
-            val netWeight = binding.netWeight.text
-            if (!this::pictureFile.isInitialized || !pictureFile.exists()) {
-                Toast.makeText(context, "Please, make a picture of a product!", Toast.LENGTH_SHORT).show()
-                return@setOnClickListener
-            }
-
-            if (productName == "") {
-                Toast.makeText(context, "Please, write a name of a product!", Toast.LENGTH_SHORT).show()
-                return@setOnClickListener
-            }
-            if (netWeight.toString() == "" || netWeight.toString().toDoubleOrNull() == null) {
-                Toast.makeText(context, "Please, write a valid net weight of a product!", Toast.LENGTH_SHORT).show()
-            }
-
-            val db = DBStorageController(requireContext()).writableDatabase
-            Log.d("QWERTYUIOP", "Putting ${pictureFile.name}")
-            val values = ContentValues().apply {
-                put(ProductContract.ProductEntry.PRODUCT_NAME, productName)
-                put(ProductContract.ProductEntry.PRODUCT_NET_WEIGHT, netWeight.toString())
-                put(ProductContract.ProductEntry.IMAGE_FILENAME, pictureFile.nameWithoutExtension)
-            }
-
-            db.insert(ProductContract.ProductEntry.TABLE_NAME, null, values)
-
-            findNavController().navigate(R.id.storageFragment)
-        }
-
-        binding.takePictureButton.setOnClickListener {
-            requestPermissionLauncher.launch(android.Manifest.permission.CAMERA)
-        }
-
-        binding.scanButton.setOnClickListener {
-            val options = GmsBarcodeScannerOptions.Builder()
-                .setBarcodeFormats(
-                    Barcode.FORMAT_EAN_13
-                )
-                .build()
-            val scanner = GmsBarcodeScanning.getClient(requireContext())
-            scanner.startScan()
-                .addOnSuccessListener { barcode ->
-                    binding.productName.setText(barcode.rawValue)
-                }
-                .addOnFailureListener { e ->
-                    Toast.makeText(
-                        requireContext(),
-                        "Failed to scan barcode. Please, try again or enter data manually",
-                        Toast.LENGTH_LONG
-                    ).show()
-                }
-        }
-
-    }
-
-    override fun onDestroyView() {
-        super.onDestroyView()
-        _binding = null
-    }
 }

app/src/main/java/org/foxarmy/barcodescannerforemployees/activities/FullscreenActivity.kt

@@ -1,4 +1,4 @@
-package org.foxarmy.barcodescannerforemployees
+package org.foxarmy.barcodescannerforemployees.activities
 
 import android.app.Activity
 import android.os.Bundle
@@ -7,7 +7,9 @@ import android.os.Looper
 import android.util.Log
 import android.widget.ImageView
 import android.widget.LinearLayout
+import org.foxarmy.barcodescannerforemployees.R
 import org.foxarmy.barcodescannerforemployees.databinding.ActivityFullscreenBinding
+import org.foxarmy.barcodescannerforemployees.getImageUri
 import java.io.File
 
 

app/src/main/java/org/foxarmy/barcodescannerforemployees/activities/StorageActivity.kt

@@ -1,34 +1,39 @@
-package org.foxarmy.barcodescannerforemployees
+package org.foxarmy.barcodescannerforemployees.activities
 
+import android.content.Intent
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
 import androidx.appcompat.app.AppCompatActivity
+import androidx.core.content.ContextCompat
 import androidx.navigation.findNavController
 import androidx.navigation.ui.AppBarConfiguration
 import androidx.navigation.ui.navigateUp
 import androidx.navigation.ui.setupActionBarWithNavController
-import org.foxarmy.barcodescannerforemployees.databinding.ActivityMainBinding
+import org.foxarmy.barcodescannerforemployees.R
+import org.foxarmy.barcodescannerforemployees.databinding.ActivityStorageBinding
 
-class MainActivity : AppCompatActivity() {
+class StorageActivity : AppCompatActivity() {
 
     private lateinit var appBarConfiguration: AppBarConfiguration
-    private lateinit var binding: ActivityMainBinding
+    private lateinit var binding: ActivityStorageBinding
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
-        binding = ActivityMainBinding.inflate(layoutInflater)
+        binding = ActivityStorageBinding.inflate(layoutInflater)
         setContentView(binding.root)
 
         setSupportActionBar(binding.toolbar)
 
-        val navController = findNavController(R.id.nav_host_fragment_content_main)
+        val navController = findNavController(R.id.nav_host_fragment_content_storage)
         appBarConfiguration = AppBarConfiguration(navController.graph)
         setupActionBarWithNavController(navController, appBarConfiguration)
 
         binding.addProductFab.setOnClickListener { view ->
-            navController.navigate(R.id.AddProductFragment)
+            val addProductIntent = Intent(this, AddProductActivity::class.java)
+            val extras = Bundle()
+            ContextCompat.startActivity(this, addProductIntent, extras)
         }
     }
 
@@ -47,7 +52,7 @@ class MainActivity : AppCompatActivity() {
     }
 
     override fun onSupportNavigateUp(): Boolean {
-        val navController = findNavController(R.id.nav_host_fragment_content_main)
+        val navController = findNavController(R.id.nav_host_fragment_content_storage)
         return navController.navigateUp(appBarConfiguration)
                 || super.onSupportNavigateUp()
     }

app/src/main/java/org/foxarmy/barcodescannerforemployees/fragments/AddProductFragment.kt

@@ -0,0 +1,30 @@
+package org.foxarmy.barcodescannerforemployees.fragments
+
+import android.os.Bundle
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import org.foxarmy.barcodescannerforemployees.R
+import org.foxarmy.barcodescannerforemployees.databinding.FragmentAddProductBinding
+import java.io.File
+
+
+class AddProductFragment : Fragment() {
+
+
+    private lateinit var binding: FragmentAddProductBinding
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+
+
+
+        Log.d("QWERTYUIOP", "хуета1")
+        binding = FragmentAddProductBinding.inflate(layoutInflater)
+        return inflater.inflate(R.layout.fragment_add_product, container, false)
+    }
+}

app/src/main/java/org/foxarmy/barcodescannerforemployees/fragments/StorageFragment.kt

@@ -1,4 +1,4 @@
-package org.foxarmy.barcodescannerforemployees
+package org.foxarmy.barcodescannerforemployees.fragments
 
 import android.os.Bundle
 import android.provider.BaseColumns
@@ -8,6 +8,8 @@ import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
 import androidx.gridlayout.widget.GridLayout
+import org.foxarmy.barcodescannerforemployees.*
+import org.foxarmy.barcodescannerforemployees.views.AbstractProductView
 
 /**
  * A simple [Fragment] subclass.
@@ -28,11 +30,23 @@ class StorageFragment : Fragment() {
         return inflater.inflate(R.layout.fragment_storage, container, false)
     }
 
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
+    override fun onResume() {
+        super.onResume()
+
+        refillWithContent()
+    }
+
+    public fun refillWithContent() {
+
+        val grv = getView()?.findViewById<GridLayout>(R.id.contentGridLayout)
+        grv?.removeAllViews()
 
         val db = DBStorageController(requireContext()).readableDatabase
-        val projection = arrayOf(BaseColumns._ID, ProductContract.ProductEntry.PRODUCT_NAME, ProductContract.ProductEntry.PRODUCT_NET_WEIGHT, ProductContract.ProductEntry.IMAGE_FILENAME)
+        val projection = arrayOf(BaseColumns._ID,
+            ProductContract.ProductEntry.PRODUCT_NAME,
+            ProductContract.ProductEntry.PRODUCT_NET_WEIGHT,
+            ProductContract.ProductEntry.IMAGE_FILENAME
+        )
 
         val cursor = db.query(ProductContract.ProductEntry.TABLE_NAME, projection, null, null, null, null, null)
 
@@ -52,7 +66,7 @@ class StorageFragment : Fragment() {
                     netWeight,
                     1
                 )
-                getView()?.findViewById<GridLayout>(R.id.contentGridLayout)?.addView(abstractProduct)
+                grv?.addView(abstractProduct)
 
                 abstractProduct.setOnClickListener {
                     Log.d("QWERTYUIOP", "Clicked view")
@@ -61,4 +75,10 @@ class StorageFragment : Fragment() {
             }
         }
     }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        refillWithContent()
+    }
 }

app/src/main/java/org/foxarmy/barcodescannerforemployees/views/AbstractProductView.kt

@@ -1,4 +1,4 @@
-package org.foxarmy.barcodescannerforemployees
+package org.foxarmy.barcodescannerforemployees.views
 
 import android.app.Activity
 import android.content.Context
@@ -12,6 +12,9 @@ import android.widget.TextView
 import androidx.constraintlayout.widget.ConstraintLayout
 import androidx.core.content.ContextCompat
 import androidx.core.content.ContextCompat.startActivity
+import org.foxarmy.barcodescannerforemployees.R
+import org.foxarmy.barcodescannerforemployees.activities.FullscreenActivity
+import org.foxarmy.barcodescannerforemployees.getImageUri
 import java.io.File
 
 class AbstractProductView: LinearLayout {

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

@@ -5,9 +5,6 @@
         xmlns:tools="http://schemas.android.com/tools"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        tools:context=".MainScreenFragment">
-    <androidx.constraintlayout.widget.ConstraintLayout
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:padding="16dp"/>
+        tools:context=".fragments.AddProductFragment">
+    <include layout="@layout/content_add_product" android:id="@+id/include_content"/>
 </androidx.core.widget.NestedScrollView>

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

@@ -5,7 +5,7 @@
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:background="@color/black"
-             tools:context=".FullscreenActivity">
+             tools:context=".activities.FullscreenActivity">
 
     <!-- The primary full-screen view. This can be replaced with whatever view
          is needed to present your content, e.g. VideoView, SurfaceView,

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

@@ -6,7 +6,7 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:fitsSystemWindows="true"
-        tools:context=".MainActivity">
+        tools:context=".activities.StorageActivity">
 
     <androidx.constraintlayout.widget.ConstraintLayout
             android:layout_width="match_parent"
@@ -26,7 +26,7 @@
 
     </com.google.android.material.appbar.AppBarLayout>
 
-    <include layout="@layout/content_main"/>
+    <include layout="@layout/content_storage"/>
 
     <com.google.android.material.floatingactionbutton.FloatingActionButton
             android:id="@+id/add_product_fab"

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

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior" android:id="@+id/addProductLayout">
+
+    <androidx.fragment.app.FragmentContainerView
+            android:name="androidx.navigation.fragment.NavHostFragment"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent" app:navGraph="@navigation/nav_graph_add_product"
+            app:defaultNavHost="true" android:id="@+id/fragmentContainerView"/>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -7,7 +7,7 @@
         app:layout_behavior="@string/appbar_scrolling_view_behavior" android:id="@+id/storageLayout">
 
     <fragment
-            android:id="@+id/nav_host_fragment_content_main"
+            android:id="@+id/nav_host_fragment_content_storage"
             android:name="androidx.navigation.fragment.NavHostFragment"
             android:layout_width="0dp"
             android:layout_height="0dp"
@@ -16,5 +16,5 @@
             app:layout_constraintTop_toTopOf="parent"
             app:layout_constraintBottom_toBottomOf="parent"
             app:defaultNavHost="true"
-            app:navGraph="@navigation/nav_graph"/>
+            app:navGraph="@navigation/nav_graph_storage"/>
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -5,7 +5,7 @@
         xmlns:tools="http://schemas.android.com/tools"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        tools:context=".AddProductFragment">
+        tools:context=".fragments.AddProductFragment">
     <androidx.constraintlayout.widget.ConstraintLayout
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"

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

@@ -3,7 +3,8 @@
              xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
-             tools:context=".StorageFragment">
+             android:id="@+id/fragment_storage"
+             tools:context=".fragments.StorageFragment">
     <ScrollView
             android:layout_width="match_parent"
             android:layout_height="match_parent">

app/src/main/res/menu/menu_main.xml

@@ -1,7 +1,7 @@
 <menu 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"
-      tools:context="org.foxarmy.barcodescannerforemployees.MainActivity">
+      tools:context="org.foxarmy.barcodescannerforemployees.activities.StorageActivity">
     <item android:id="@+id/action_settings"
           android:title="@string/action_settings"
           android:orderInCategory="100"

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

@@ -1,33 +0,0 @@
-<?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/storageFragment">
-
-    <fragment
-            android:id="@+id/AddProductFragment"
-            android:name="org.foxarmy.barcodescannerforemployees.AddProductFragment"
-            android:label="@string/first_fragment_label"
-            tools:layout="@layout/add_product_fragment">
-
-        <action
-                android:id="@+id/action_FirstFragment_to_SecondFragment"
-                app:destination="@id/MainScreenFragment"/>
-    </fragment>
-    <fragment
-            android:id="@+id/MainScreenFragment"
-            android:name="org.foxarmy.barcodescannerforemployees.MainScreenFragment"
-            android:label="@string/second_fragment_label"
-            tools:layout="@layout/fragment_second">
-
-        <action
-                android:id="@+id/action_SecondFragment_to_FirstFragment"
-                app:destination="@id/AddProductFragment"/>
-    </fragment>
-    <fragment android:id="@+id/storageFragment" android:name="org.foxarmy.barcodescannerforemployees.StorageFragment"
-              android:label="fragment_storage" tools:layout="@layout/fragment_storage">
-        <action android:id="@+id/action_storageFragment_to_AddProductFragment"
-                app:destination="@id/AddProductFragment"/>
-    </fragment>
-</navigation>

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

@@ -0,0 +1,10 @@
+<?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_add_product"
+            app:startDestination="@id/addProductFragment">
+
+    <fragment android:id="@+id/addProductFragment" android:name="org.foxarmy.barcodescannerforemployees.fragments.AddProductFragment"
+              android:label="add_product_fragment" tools:layout="@layout/fragment_add_product"/>
+</navigation>

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

@@ -0,0 +1,10 @@
+<?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_storage"
+            app:startDestination="@id/storageFragment">
+
+    <fragment android:id="@+id/storageFragment" android:name="org.foxarmy.barcodescannerforemployees.fragments.StorageFragment"
+              android:label="fragment_storage" tools:layout="@layout/fragment_storage"/>
+</navigation>

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

@@ -21,4 +21,36 @@
     <string name="dummy_button">Dummy Button</string>
     <string name="dummy_content">DUMMY\nCONTENT</string>
     <string name="fullscreen_image">Fullscreen image</string>
+    <string name="next">Next</string>
+
+    <string name="lorem_ipsum">
+        Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam in scelerisque sem. Mauris volutpat, dolor id
+        interdum ullamcorper, risus dolor egestas lectus, sit amet mattis purus dui nec risus. Maecenas non sodales
+        nisi, vel dictum dolor. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos
+        himenaeos. Suspendisse blandit eleifend diam, vel rutrum tellus vulputate quis. Aliquam eget libero aliquet,
+        imperdiet nisl a, ornare ex. Sed rhoncus est ut libero porta lobortis. Fusce in dictum tellus.\n\n
+        Suspendisse interdum ornare ante. Aliquam nec cursus lorem. Morbi id magna felis. Vivamus egestas, est a
+        condimentum egestas, turpis nisl iaculis ipsum, in dictum tellus dolor sed neque. Morbi tellus erat, dapibus ut
+        sem a, iaculis tincidunt dui. Interdum et malesuada fames ac ante ipsum primis in faucibus. Curabitur et eros
+        porttitor, ultricies urna vitae, molestie nibh. Phasellus at commodo eros, non aliquet metus. Sed maximus nisl
+        nec dolor bibendum, vel congue leo egestas.\n\n
+        Sed interdum tortor nibh, in sagittis risus mollis quis. Curabitur mi odio, condimentum sit amet auctor at,
+        mollis non turpis. Nullam pretium libero vestibulum, finibus orci vel, molestie quam. Fusce blandit tincidunt
+        nulla, quis sollicitudin libero facilisis et. Integer interdum nunc ligula, et fermentum metus hendrerit id.
+        Vestibulum lectus felis, dictum at lacinia sit amet, tristique id quam. Cras eu consequat dui. Suspendisse
+        sodales nunc ligula, in lobortis sem porta sed. Integer id ultrices magna, in luctus elit. Sed a pellentesque
+        est.\n\n
+        Aenean nunc velit, lacinia sed dolor sed, ultrices viverra nulla. Etiam a venenatis nibh. Morbi laoreet, tortor
+        sed facilisis varius, nibh orci rhoncus nulla, id elementum leo dui non lorem. Nam mollis ipsum quis auctor
+        varius. Quisque elementum eu libero sed commodo. In eros nisl, imperdiet vel imperdiet et, scelerisque a mauris.
+        Pellentesque varius ex nunc, quis imperdiet eros placerat ac. Duis finibus orci et est auctor tincidunt. Sed non
+        viverra ipsum. Nunc quis augue egestas, cursus lorem at, molestie sem. Morbi a consectetur ipsum, a placerat
+        diam. Etiam vulputate dignissim convallis. Integer faucibus mauris sit amet finibus convallis.\n\n
+        Phasellus in aliquet mi. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis
+        egestas. In volutpat arcu ut felis sagittis, in finibus massa gravida. Pellentesque id tellus orci. Integer
+        dictum, lorem sed efficitur ullamcorper, libero justo consectetur ipsum, in mollis nisl ex sed nisl. Donec
+        maximus ullamcorper sodales. Praesent bibendum rhoncus tellus nec feugiat. In a ornare nulla. Donec rhoncus
+        libero vel nunc consequat, quis tincidunt nisl eleifend. Cras bibendum enim a justo luctus vestibulum. Fusce
+        dictum libero quis erat maximus, vitae volutpat diam dignissim.
+    </string>
 </resources>