Some UI

app/src/main/AndroidManifest.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           xmlns:tools="http://schemas.android.com/tools">
-    <uses-feature android:name="android.hardware.camera" android:required="false"/>
+    <uses-feature android:name="android.hardware.camera" android:required="true"/>
     <uses-permission android:name="android.permission.CAMERA" />
     <application
             android:allowBackup="true"

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

@@ -1,11 +1,16 @@
 package org.foxarmy.barcodescannerforemployees
 
 //import com.google.mlkit.vision.codescanner.GmsBarcodeScannerOptions
+import android.app.Activity
+import android.content.Intent
+import android.graphics.Bitmap
 import android.os.Bundle
+import android.provider.MediaStore
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.Toast
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.fragment.app.Fragment
 import com.google.mlkit.vision.barcode.common.Barcode
 import com.google.mlkit.vision.codescanner.GmsBarcodeScannerOptions
@@ -15,7 +20,9 @@ import org.foxarmy.barcodescannerforemployees.databinding.AddProductFragmentBind
 /**
  * A simple [Fragment] subclass as the default destination in the navigation.
  */
-class addProductFragment : Fragment() {
+
+
+class AddProductFragment : Fragment() {
 
     private var _binding: AddProductFragmentBinding? = null
 
@@ -33,25 +40,56 @@ class addProductFragment : Fragment() {
 
     }
 
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        super.onActivityResult(requestCode, resultCode, data)
+        when (requestCode) {
+            200 -> {
+                if (resultCode == Activity.RESULT_OK && data != null) {
+                    binding.imageView.setImageBitmap(data.extras?.get("data") as Bitmap)
+                }
+            }
+        }
+    }
+
+    val requestPermissionLauncher = registerForActivityResult(
+        ActivityResultContracts.RequestPermission()
+    ) { isGranted ->
+        if (isGranted) {
+            val cameraIntent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
+            startActivityForResult(cameraIntent, 200)
+        } else {
+            Toast.makeText(
+                requireContext(),
+                "I need permission for camera in order to take a picture!",
+                Toast.LENGTH_LONG
+            ).show()
+        }
+    }
+
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
+        binding.takePictureButton.setOnClickListener {
+            requestPermissionLauncher.launch(android.Manifest.permission.CAMERA)
+        }
+
         binding.scanButton.setOnClickListener {
-//            findNavController().navigate(R.id.action_FirstFragment_to_SecondFragment)
-//            Toast.makeText(requireContext(), "Test", Toast.LENGTH_LONG).show()
             val options = GmsBarcodeScannerOptions.Builder()
                 .setBarcodeFormats(
-                    Barcode.FORMAT_EAN_13)
+                    Barcode.FORMAT_EAN_13
+                )
                 .build()
             val scanner = GmsBarcodeScanning.getClient(requireContext())
             scanner.startScan()
                 .addOnSuccessListener { barcode ->
-                    // Task completed successfully
-                    //Toast.makeText(requireContext(), barcode.rawValue, Toast.LENGTH_LONG).show()
                     binding.productName.setText(barcode.rawValue)
                 }
                 .addOnFailureListener { e ->
-                    Toast.makeText(requireContext(), "Failed to scan barcode. Please, try again", Toast.LENGTH_LONG).show()
+                    Toast.makeText(
+                        requireContext(),
+                        "Failed to scan barcode. Please, try again or enter data manually",
+                        Toast.LENGTH_LONG
+                    ).show()
                 }
         }
     }

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

@@ -0,0 +1,39 @@
+package org.foxarmy.barcodescannerforemployees
+
+import android.content.Context
+import android.database.sqlite.SQLiteDatabase
+import android.database.sqlite.SQLiteOpenHelper
+import android.provider.BaseColumns
+
+object ProductContract {
+    object ProductEntry :BaseColumns {
+        const val TABLE_NAME = "products"
+        const val PRODUCT_NAME = "name"
+        const val PRODUCT_NET_WEIGHT = "net_weight"
+        const val IMAGE_FILENAME = "image_filename"
+    }
+}
+
+const val SQL_CREATE_ENTRIES =
+    "CREATE TABLE ${ProductContract.ProductEntry.TABLE_NAME} (" +
+            "${BaseColumns._ID} INTEGER PRIMARY KEY," +
+            "${ProductContract.ProductEntry.PRODUCT_NAME} TEXT," +
+            "${ProductContract.ProductEntry.PRODUCT_NET_WEIGHT} TEXT" +
+            "${ProductContract.ProductEntry.IMAGE_FILENAME} TEXT)"
+
+class DBStorageController(context: Context) : SQLiteOpenHelper (context, DATABASE_NAME, null, DATABASE_VERSION) {
+
+    override fun onCreate(db: SQLiteDatabase) {
+        db.execSQL(SQL_CREATE_ENTRIES)
+    }
+
+    override fun onUpgrade(p0: SQLiteDatabase?, p1: Int, p2: Int) {
+        TODO("Not yet implemented")
+    }
+
+    companion object {
+        // If you change the database schema, you must increment the database version.
+        const val DATABASE_VERSION = 1
+        const val DATABASE_NAME = "FeedReader.db"
+    }
+}

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

@@ -1,15 +1,14 @@
 package org.foxarmy.barcodescannerforemployees
 
 import android.os.Bundle
-import com.google.android.material.snackbar.Snackbar
+import android.provider.BaseColumns
+import android.view.Menu
+import android.view.MenuItem
 import androidx.appcompat.app.AppCompatActivity
 import androidx.navigation.findNavController
 import androidx.navigation.ui.AppBarConfiguration
 import androidx.navigation.ui.navigateUp
 import androidx.navigation.ui.setupActionBarWithNavController
-import android.view.Menu
-import android.view.MenuItem
-import android.widget.Toast
 import org.foxarmy.barcodescannerforemployees.databinding.ActivityMainBinding
 
 class MainActivity : AppCompatActivity() {
@@ -20,6 +19,34 @@ class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
+        val dbHelper = DBStorageController(applicationContext)
+//        val db = dbHelper.writableDatabase
+//
+//        val values = ContentValues().apply {
+//            put(ProductContract.ProductEntry.PRODUCT_NAME, "Имя продукта")
+//            put(ProductContract.ProductEntry.PRODUCT_NET_WEIGHT, "0г")
+//            put(ProductContract.ProductEntry.IMAGE_FILENAME, "image.png")
+//        }
+//
+//        val netRowId = db?.insert(ProductContract.ProductEntry.TABLE_NAME, null, values)
+
+        val db2 = dbHelper.readableDatabase
+
+        val projection = arrayOf(BaseColumns._ID, ProductContract.ProductEntry.PRODUCT_NAME, ProductContract.ProductEntry.PRODUCT_NET_WEIGHT, ProductContract.ProductEntry.IMAGE_FILENAME)
+
+        val selection = "${ProductContract.ProductEntry.PRODUCT_NAME} = ?"
+        val selectionArgs = arrayOf("Имя продукта")
+
+        val cursor = db2.query(
+            ProductContract.ProductEntry.TABLE_NAME,
+            null,
+            selection,
+            selectionArgs,
+            null,
+            null,
+            null
+        )
+
         binding = ActivityMainBinding.inflate(layoutInflater)
         setContentView(binding.root)
 
@@ -33,7 +60,8 @@ class MainActivity : AppCompatActivity() {
 //            Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
 //                .setAction("Action", null)
 //                .setAnchorView(R.id.add_product_fab).show()
-            Toast.makeText(applicationContext, "Test", Toast.LENGTH_SHORT)
+//            Toast.makeText(applicationContext, "Test", Toast.LENGTH_SHORT).show()
+            navController.navigate(R.id.AddProductFragment)
         }
     }
 

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

@@ -11,7 +11,7 @@ import org.foxarmy.barcodescannerforemployees.databinding.FragmentSecondBinding
 /**
  * A simple [Fragment] subclass as the second destination in the navigation.
  */
-class SecondFragment : Fragment() {
+class MainScreenFragment : Fragment() {
 
     private var _binding: FragmentSecondBinding? = null
 

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

@@ -41,4 +41,5 @@ fun main () {
     val p = Parser("""\<table\s*class\=\"randomBarcodes\"\s*>""", """\<\/table\>""", """[ёЁ\u0401\u0451\u0410-\u044f\d\w\s]{16,}""")
     p.parse(Requester("https://barcode-list.ru", "barcode/RU/Поиск.htm?barcode=4680036915828", ).request("4680036915828"))
 //    println(Requester("https://barcode-list.ru", "barcode/RU/Поиск.htm?barcode=4680036915828", ).request("4680036915828"))
+
 }

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

@@ -1,28 +0,0 @@
-package org.foxarmy.barcodescannerforemployees
-
-import android.content.Context
-import android.provider.BaseColumns
-
-object ProductContract {
-    object ProductEntry :BaseColumns {
-        const val TABLE_NAME = "products"
-        const val PRODUCT_NAME = "name"
-        const val PRODUCT_NET_WEIGHT = "net_weight"
-        const val IMAGE_FILENAME = "image_filename"
-    }
-}
-
-class StorageController(context: Context) {
-    val context = context
-
-    fun initStorage() {
-        val productContract = ProductContract
-        val SQL_CREATE_ENTRIES =
-            "CREATE TABLE ${ProductContract.ProductEntry.TABLE_NAME} (" +
-                    "${BaseColumns._ID} INTEGER PRIMARY KEY," +
-                    "${ProductContract.ProductEntry.PRODUCT_NAME} TEXT," +
-                    "${ProductContract.ProductEntry.PRODUCT_NET_WEIGHT} TEXT" +
-                    "${ProductContract.ProductEntry.IMAGE_FILENAME} TEXT)"
-
-    }
-}

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

@@ -0,0 +1,27 @@
+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
+
+/**
+ * A simple [Fragment] subclass.
+ * Use the [StorageFragment.newInstance] factory method to
+ * create an instance of this fragment.
+ */
+class StorageFragment : Fragment() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_storage, container, false)
+    }
+}

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

@@ -5,29 +5,66 @@
         xmlns:tools="http://schemas.android.com/tools"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        tools:context=".addProductFragment">
+        tools:context=".AddProductFragment">
     <androidx.constraintlayout.widget.ConstraintLayout
-            android:layout_width="match_parent"
+            android:layout_width="wrap_content"
-            android:layout_height="match_parent"
+            android:layout_height="wrap_content"
             android:padding="16dp">
         <Button
                 android:id="@+id/scan_button"
-                android:layout_width="wrap_content"
+                android:layout_width="100dp"
-                android:layout_height="wrap_content"
+                android:layout_height="50dp"
                 android:text="@string/scan_label"
-                app:layout_constraintEnd_toEndOf="parent"
                 app:layout_constraintStart_toStartOf="parent"
-                app:layout_constraintTop_toTopOf="parent"/>
+                app:layout_constraintTop_toBottomOf="@+id/editTextText"
+                android:layout_marginTop="25dp"/>
+        <ImageView
+                android:src="@android:drawable/ic_menu_camera"
+                android:layout_width="356dp"
+                android:layout_height="303dp" android:id="@+id/imageView"
+                android:layout_marginBottom="25dp"
+                app:layout_constraintBottom_toTopOf="@+id/productName" app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintEnd_toEndOf="parent" app:layout_constraintTop_toTopOf="parent"
+                android:layout_marginTop="15dp"/>
         <EditText
-                android:layout_width="365dp"
+                android:layout_width="350dp"
-                android:layout_height="42dp"
+                android:layout_height="50dp"
                 android:inputType="text"
-                android:text="@string/product_name_label"
                 android:ems="10"
                 android:id="@+id/productName"
-                app:layout_constraintTop_toTopOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
-                android:layout_marginTop="162dp" app:layout_constraintStart_toStartOf="parent"
+                android:layout_marginStart="8dp" android:layout_marginEnd="8dp"
-                android:layout_marginStart="11dp"/>
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintBottom_toTopOf="@+id/editTextText"
+                app:layout_constraintHorizontal_bias="0.5"
+                android:visibility="visible" android:hint="@string/product_name_label" android:textColorHint="#737373"
+                app:layout_constraintTop_toBottomOf="@+id/imageView"/>
+        <EditText
+                android:layout_width="350dp"
+                android:layout_height="50dp"
+                android:inputType="text"
+                android:ems="10"
+                android:id="@+id/editTextText"
+                app:layout_constraintStart_toStartOf="parent"
+                android:layout_marginStart="8dp"
+                android:layout_marginEnd="8dp"
+                app:layout_constraintEnd_toEndOf="parent"
+                android:visibility="visible" android:hint="@string/netWeight" android:textColorHint="#737373"
+                app:layout_constraintTop_toBottomOf="@+id/productName"/>
+        <Button
+                android:text="@string/saveButton"
+                android:layout_width="100dp"
+                android:layout_height="50dp" android:id="@+id/saveButton"
+                app:layout_constraintTop_toBottomOf="@+id/editTextText"
+                android:layout_marginTop="25dp" app:layout_constraintEnd_toEndOf="parent"/>
+        <Button
+                android:text="@string/takePicture"
+                android:layout_width="100dp"
+                android:layout_height="55dp" android:id="@+id/takePictureButton"
+                app:layout_constraintTop_toBottomOf="@+id/editTextText"
+                android:layout_marginTop="24dp" app:layout_constraintStart_toEndOf="@+id/scan_button"
+                android:layout_marginStart="33dp" app:layout_constraintEnd_toStartOf="@+id/saveButton"
+                android:layout_marginEnd="6dp" app:layout_constraintHorizontal_bias="0.0"/>
 
     </androidx.constraintlayout.widget.ConstraintLayout>
 </androidx.core.widget.NestedScrollView>

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

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

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

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+             xmlns:tools="http://schemas.android.com/tools"
+             android:layout_width="match_parent"
+             android:layout_height="match_parent"
+             tools:context=".StorageFragment">
+    <androidx.constraintlayout.widget.ConstraintLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</FrameLayout>

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

@@ -3,26 +3,31 @@
             xmlns:app="http://schemas.android.com/apk/res-auto"
             xmlns:tools="http://schemas.android.com/tools"
             android:id="@+id/nav_graph"
-            app:startDestination="@id/FirstFragment">
+            app:startDestination="@id/storageFragment">
 
     <fragment
-            android:id="@+id/FirstFragment"
+            android:id="@+id/AddProductFragment"
-            android:name="org.foxarmy.barcodescannerforemployees.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/SecondFragment"/>
+                app:destination="@id/MainScreenFragment"/>
     </fragment>
     <fragment
-            android:id="@+id/SecondFragment"
+            android:id="@+id/MainScreenFragment"
-            android:name="org.foxarmy.barcodescannerforemployees.SecondFragment"
+            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/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/values/strings.xml

@@ -7,4 +7,9 @@
     <string name="scan_label">Scan</string>
     <string name="previous">Previous</string>
     <string name="product_name_label">Product name</string>
+    <string name="netWeight">Net weight</string>
+    <string name="saveButton">Save</string>
+    <string name="takePicture">Take picture</string>
+    <!-- TODO: Remove or change this placeholder text -->
+    <string name="hello_blank_fragment">Hello blank fragment</string>
 </resources>