Added sorting, freshness precentage, fullscreen view for products on shelf

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

@@ -15,6 +15,9 @@ import java.io.File
 import java.io.FileOutputStream
 import java.net.URLEncoder
 import java.security.MessageDigest
+import java.time.Duration
+import java.time.LocalDate
+import java.time.format.DateTimeFormatter
 
 fun getImageUri(activity: Activity, imageFile: File): Uri? {
     return FileProvider.getUriForFile(activity, BuildConfig.APPLICATION_ID + "." + activity.localClassName + ".provider", imageFile)
@@ -70,3 +73,17 @@ fun getActivity(context: Context?): Activity? {
 
     return null
 }
+
+@RequiresApi(Build.VERSION_CODES.O)
+fun calculateProductFreshness(dateOfProduction: String, dateOfExpiry: String): Double {
+    val dateFormatter: DateTimeFormatter =  DateTimeFormatter.ofPattern("d.M.yyyy")
+
+    val fresh = LocalDate.parse(dateOfProduction, dateFormatter)
+    val expired = LocalDate.parse(dateOfExpiry, dateFormatter)
+
+    val shelfLife = Duration.between(fresh.atStartOfDay(), expired.atStartOfDay()).toDays()
+    val today = LocalDate.parse(LocalDate.now().format(dateFormatter), dateFormatter)
+    val daysBeforeExpiry = Duration.between(today.atStartOfDay(), expired.atStartOfDay()).toDays()
+
+    return daysBeforeExpiry / shelfLife.toDouble()
+}

app/src/main/java/org/foxarmy/barcodescannerforemployees/dataclasses/Product.kt

@@ -1,7 +1,10 @@
 package org.foxarmy.barcodescannerforemployees.dataclasses
 
+import android.os.Build
 import android.os.Parcel
 import android.os.Parcelable
+import androidx.annotation.RequiresApi
+import org.foxarmy.barcodescannerforemployees.calculateProductFreshness
 
 class Product() : Parcelable {
     var id = 0
@@ -9,13 +12,16 @@ class Product() : Parcelable {
     var amount = 0
     var dateOfProduction = "01.01.1970"
     var dateOfExpiry = "01.01.1970"
+    var freshness: Double = 0.0
 
+    @RequiresApi(Build.VERSION_CODES.O)
     constructor(id: Int, abstractProductId: Int, amount: Int, dateOfProduction: String, dateOfExpiry: String) : this() {
         this.id = id
         this.abstractProductId = abstractProductId
         this.amount = amount
         this.dateOfProduction = dateOfProduction
         this.dateOfExpiry = dateOfExpiry
+        this.freshness = calculateProductFreshness(dateOfProduction, dateOfExpiry)
     }
 
     constructor(parcel: Parcel) : this() {
@@ -24,6 +30,7 @@ class Product() : Parcelable {
         amount = parcel.readInt()
         dateOfProduction = parcel.readString()!!
         dateOfExpiry = parcel.readString()!!
+        freshness = parcel.readDouble()
     }
 
     override fun writeToParcel(parcel: Parcel, flags: Int) {
@@ -32,6 +39,7 @@ class Product() : Parcelable {
         parcel.writeInt(amount)
         parcel.writeString(dateOfProduction)
         parcel.writeString(dateOfExpiry)
+        parcel.writeDouble(freshness)
     }
 
     override fun describeContents(): Int {

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

@@ -12,10 +12,10 @@ import androidx.core.content.ContextCompat
 import androidx.core.view.children
 import androidx.fragment.app.Fragment
 import org.foxarmy.barcodescannerforemployees.CategoriesContract
-import org.foxarmy.barcodescannerforemployees.dataclasses.Category
 import org.foxarmy.barcodescannerforemployees.DBStorageController
 import org.foxarmy.barcodescannerforemployees.R
 import org.foxarmy.barcodescannerforemployees.activities.AddCategoryActivity
+import org.foxarmy.barcodescannerforemployees.dataclasses.Category
 import org.foxarmy.barcodescannerforemployees.views.CategoryView
 
 class CategoriesFragment : Fragment() {
@@ -61,8 +61,6 @@ class CategoriesFragment : Fragment() {
                 ContextCompat.startActivity(context!!, addCategoryIntent, extras)
             }
         }
-
-
     }
 
     fun updateContent() {

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

@@ -5,31 +5,57 @@ import android.provider.BaseColumns
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.AdapterView
+import android.widget.ArrayAdapter
 import android.widget.ImageView
 import android.widget.Toast
 import androidx.core.view.children
 import androidx.fragment.app.Fragment
 import androidx.gridlayout.widget.GridLayout
+import org.foxarmy.barcodescannerforemployees.AbstractProductContract
 import org.foxarmy.barcodescannerforemployees.DBStorageController
 import org.foxarmy.barcodescannerforemployees.ProductContract
 import org.foxarmy.barcodescannerforemployees.R
+import org.foxarmy.barcodescannerforemployees.databinding.FragmentShelfBinding
 import org.foxarmy.barcodescannerforemployees.dataclasses.Product
 import org.foxarmy.barcodescannerforemployees.views.ProductView
 import kotlin.concurrent.thread
 
 class ShelfFragment : Fragment() {
+
+    private lateinit var binding: FragmentShelfBinding
+    private var updateInProgress = false
+
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?,
         savedInstanceState: Bundle?
-    ): View? {
+    ): View {
+        binding = FragmentShelfBinding.inflate(layoutInflater)
 
-        return inflater.inflate(R.layout.fragment_shelf, container, false)
+        fillUpSortBySpinner()
+
+        binding.spinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
+            override fun onNothingSelected(parent: AdapterView<*>?) {
+                updateContent()
             }
 
-    override fun onCreate(savedInstanceState: Bundle?) {
+            override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
-        super.onCreate(savedInstanceState)
+                updateContent()
+            }
+        }
 
         updateContent()
+
+        return binding.root
+    }
+
+    private fun fillUpSortBySpinner() {
+        val sorts = mutableListOf("Name", "Category", "Freshness", "Date of production", "Date of expiry")
+
+        val arrayAdapter =
+            ArrayAdapter(requireContext(), androidx.appcompat.R.layout.support_simple_spinner_dropdown_item, sorts)
+        arrayAdapter.setDropDownViewResource(androidx.appcompat.R.layout.support_simple_spinner_dropdown_item)
+        binding.spinner.adapter = arrayAdapter
     }
 
     override fun onResume() {
@@ -40,6 +66,8 @@ class ShelfFragment : Fragment() {
 
     fun updateContent() {
         thread {
+            if (updateInProgress) return@thread
+            updateInProgress = true
             val grv = view?.findViewById<GridLayout>(R.id.contentGridLayout)
             activity!!.runOnUiThread {
                 grv?.removeAllViews()
@@ -54,7 +82,37 @@ class ShelfFragment : Fragment() {
                 ProductContract.ProductEntry.EXPIRY_DATE,
             )
 
-            val cursor = db.query(ProductContract.ProductEntry.TABLE_NAME, projection, null, null, null, null, null)
+            var orderBy: String = ""
+
+            when (binding.spinner.selectedItem) {
+                "Name" -> {
+                    orderBy =
+                        "(SELECT ${AbstractProductContract.AbstractProductEntry.PRODUCT_NAME} FROM ${AbstractProductContract.AbstractProductEntry.TABLE_NAME} WHERE ${BaseColumns._ID} = ${ProductContract.ProductEntry.ABSTRACT_PRODUCT_ID}) ASC"
+                }
+
+                "Category" -> {
+                    orderBy =
+                        "(SELECT ${AbstractProductContract.AbstractProductEntry.CATEGORY} FROM ${AbstractProductContract.AbstractProductEntry.TABLE_NAME} WHERE ${BaseColumns._ID} = ${ProductContract.ProductEntry.ABSTRACT_PRODUCT_ID}) ASC"
+                }
+// Wow, I wrote this on first try but unfortunately SQLite can't do that :(
+// I'll leave it here as a memory.
+//                "Freshness" -> {
+//                    orderBy =
+//                        "(SELECT ( (julianday(${ProductContract.ProductEntry.EXPIRY_DATE}) - julianday('now', 'localtime')) / (julianday(${ProductContract.ProductEntry.EXPIRY_DATE}) - julianday(${ProductContract.ProductEntry.DATE_OF_PRODUCTION})) )) ASC"
+//                }
+
+                "Date of production" -> {
+                    orderBy = "${ProductContract.ProductEntry.DATE_OF_PRODUCTION} ASC"
+                }
+
+                "Date of expiry" -> {
+                    orderBy = "${ProductContract.ProductEntry.EXPIRY_DATE} ASC"
+                }
+            }
+
+            val cursor = db.query(ProductContract.ProductEntry.TABLE_NAME, projection, null, null, null, null, orderBy)
+
+            val products = mutableListOf<Product>()
 
             with(cursor) {
                 while (moveToNext()) {
@@ -68,6 +126,9 @@ class ShelfFragment : Fragment() {
 
                     val product = Product(productId, abstractProductId, amount, dateOfProduction, dateOfExpiry)
 
+                    if (binding.spinner.selectedItem == "Freshness") {
+                        products.add(product)
+                    } else {
                         val productView = ProductView(
                             requireActivity(),
                             requireContext(),
@@ -79,6 +140,21 @@ class ShelfFragment : Fragment() {
                     }
                 }
             }
+
+            products.sortWith(compareByDescending { it.freshness })
+
+            for (product in products.iterator()) {
+                val productView = ProductView(
+                    requireActivity(),
+                    requireContext(),
+                    product
+                )
+                activity!!.runOnUiThread {
+                    grv?.addView(productView)
+                }
+            }
+            updateInProgress = false
+        }
     }
 
     fun removeSelected() {
@@ -92,7 +168,6 @@ class ShelfFragment : Fragment() {
                     view.findViewById<ImageView>(R.id.productPicture).setImageURI(null)
                 }
                 if (view.isProductSelected) {
-//                    db.eraseAbstractProduct(db.writableDatabase, view.abstractProduct.id, requireContext())
                     db.eraseProduct(db.writableDatabase, view.product.id)
                     deleted = true
                 }

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

@@ -3,19 +3,22 @@ package org.foxarmy.barcodescannerforemployees.fragments
 import android.content.Intent
 import android.os.Bundle
 import android.provider.BaseColumns
+import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.AdapterView
+import android.widget.ArrayAdapter
 import android.widget.ImageView
 import android.widget.Toast
 import androidx.core.content.ContextCompat
 import androidx.core.view.children
 import androidx.fragment.app.Fragment
-import androidx.gridlayout.widget.GridLayout
 import org.foxarmy.barcodescannerforemployees.AbstractProductContract
 import org.foxarmy.barcodescannerforemployees.DBStorageController
 import org.foxarmy.barcodescannerforemployees.R
 import org.foxarmy.barcodescannerforemployees.activities.AddAbstractProductActivity
+import org.foxarmy.barcodescannerforemployees.databinding.FragmentStorageBinding
 import org.foxarmy.barcodescannerforemployees.dataclasses.AbstractProduct
 import org.foxarmy.barcodescannerforemployees.generateThumbnailForImage
 import org.foxarmy.barcodescannerforemployees.views.AbstractProductView
@@ -23,11 +26,27 @@ import kotlin.concurrent.thread
 
 class StorageFragment : Fragment() {
 
+    private lateinit var binding: FragmentStorageBinding
+
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?,
         savedInstanceState: Bundle?
-    ): View? {
+    ): View {
-        return inflater.inflate(R.layout.fragment_storage, container, false)
+        binding = FragmentStorageBinding.inflate(inflater)
+
+        fillUpSortBySpinner()
+
+        binding.spinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
+            override fun onNothingSelected(parent: AdapterView<*>?) {
+                updateContent()
+            }
+
+            override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
+                updateContent()
+            }
+        }
+
+        return binding.root
     }
 
     override fun onResume() {
@@ -36,20 +55,21 @@ class StorageFragment : Fragment() {
         updateContent()
     }
 
-    override fun onStop() {
+    private fun fillUpSortBySpinner() {
-        super.onStop()
+        val sorts = mutableListOf("Name", "Category")
 
-        val grv = view?.findViewById<GridLayout>(R.id.contentGridLayout)
+        val arrayAdapter = ArrayAdapter(requireContext(), androidx.appcompat.R.layout.support_simple_spinner_dropdown_item, sorts)
-        grv?.removeAllViews()
+        arrayAdapter.setDropDownViewResource(androidx.appcompat.R.layout.support_simple_spinner_dropdown_item)
+        binding.spinner.adapter = arrayAdapter
     }
 
     fun removeSelected() {
         thread {
-            val grv = view?.findViewById<GridLayout>(R.id.contentGridLayout)
+            val grv = binding.contentGridLayout
 
             val db = DBStorageController(requireContext())
             var deleted = false
-            for (view: AbstractProductView in grv?.children!!.iterator() as Iterator<AbstractProductView>) {
+            for (view: AbstractProductView in grv.children.iterator() as Iterator<AbstractProductView>) {
                 activity!!.runOnUiThread {
                     view.findViewById<ImageView>(R.id.productPicture).setImageURI(null)
                 }
@@ -69,9 +89,9 @@ class StorageFragment : Fragment() {
     }
 
     fun updateSelected() {
-        val grv = view?.findViewById<GridLayout>(R.id.contentGridLayout)
+        val grv = binding.contentGridLayout
 
-        for (view: AbstractProductView in grv?.children!!.iterator() as Iterator<AbstractProductView>) {
+        for (view: AbstractProductView in grv.children.iterator() as Iterator<AbstractProductView>) {
             if (view.isProductSelected) {
                 val addProductIntent = Intent(requireContext(), AddAbstractProductActivity::class.java)
                 val extras = Bundle()
@@ -84,9 +104,9 @@ class StorageFragment : Fragment() {
 
     fun updateContent() {
         thread {
-            val grv:GridLayout? = view?.findViewById(R.id.contentGridLayout)
+            val grv = binding.contentGridLayout
             activity!!.runOnUiThread{
-                grv?.removeAllViews()
+                grv.removeAllViews()
             }
 
             val db = DBStorageController(requireContext()).readableDatabase
@@ -99,7 +119,18 @@ class StorageFragment : Fragment() {
                 AbstractProductContract.AbstractProductEntry.CATEGORY
             )
 
-            val cursor = db.query(AbstractProductContract.AbstractProductEntry.TABLE_NAME, projection, null, null, null, null, null)
+            var orderBy: String = ""
+            Log.d("QWERTYUIOP", binding.spinner.selectedItem.toString())
+            when(binding.spinner.selectedItem) {
+                "Name" -> {
+                    orderBy = "${AbstractProductContract.AbstractProductEntry.PRODUCT_NAME} ASC"
+                }
+                "Category" -> {
+                    orderBy = "${AbstractProductContract.AbstractProductEntry.CATEGORY} ASC"
+                }
+            }
+
+            val cursor = db.query(AbstractProductContract.AbstractProductEntry.TABLE_NAME, projection, null, null, null, null, orderBy)
 
             with (cursor) {
                 while(moveToNext()) {
@@ -121,7 +152,7 @@ class StorageFragment : Fragment() {
                     )
 
                     activity!!.runOnUiThread{
-                        grv?.addView(abstractProduct)
+                        grv.addView(abstractProduct)
                     }
                 }
             }

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

@@ -2,11 +2,12 @@ package org.foxarmy.barcodescannerforemployees.views
 
 import android.app.Activity
 import android.content.Context
+import android.content.Intent
 import android.graphics.Color
 import android.graphics.drawable.GradientDrawable
 import android.os.Build
+import android.os.Bundle
 import android.util.AttributeSet
-import android.util.Log
 import android.view.LayoutInflater
 import android.widget.ImageView
 import android.widget.LinearLayout
@@ -14,20 +15,17 @@ import android.widget.TextView
 import androidx.annotation.RequiresApi
 import androidx.constraintlayout.widget.ConstraintLayout
 import androidx.core.content.ContextCompat
+import androidx.core.content.ContextCompat.startActivity
 import androidx.core.graphics.blue
 import androidx.core.graphics.green
 import androidx.core.graphics.red
 import androidx.core.math.MathUtils.clamp
-import org.foxarmy.barcodescannerforemployees.DBStorageController
+import org.foxarmy.barcodescannerforemployees.*
-import org.foxarmy.barcodescannerforemployees.R
+import org.foxarmy.barcodescannerforemployees.activities.FullscreenActivity
 import org.foxarmy.barcodescannerforemployees.dataclasses.AbstractProduct
 import org.foxarmy.barcodescannerforemployees.dataclasses.Product
-import org.foxarmy.barcodescannerforemployees.getActivity
-import org.foxarmy.barcodescannerforemployees.getImageUri
 import java.io.File
-import java.time.Duration
+import java.text.DecimalFormat
-import java.time.LocalDate
-import java.time.format.DateTimeFormatter
 import kotlin.concurrent.thread
 
 class ProductView: LinearLayout {
@@ -41,6 +39,8 @@ class ProductView: LinearLayout {
     private lateinit var productAmountTextView: TextView
     private lateinit var productCategoryView: TextView
     private lateinit var productLifeSpan: TextView
+    private lateinit var productFreshnessTextView: TextView
+
     private var backgroundColor: Int = 0xffffff
     private var strokeColor: Int = 0x000000
     private lateinit var outline: GradientDrawable
@@ -64,6 +64,7 @@ class ProductView: LinearLayout {
         productAmountTextView = findViewById(R.id.amountView)
         productCategoryView = findViewById(R.id.categoryView)
         productLifeSpan = findViewById(R.id.dateSpan)
+        productFreshnessTextView = findViewById(R.id.freshnessPercentTextView)
 
         findViewById<ConstraintLayout>(R.id.productLayout).setOnLongClickListener {
             isProductSelected = !isProductSelected
@@ -71,6 +72,15 @@ class ProductView: LinearLayout {
             true
         }
 
+        productImageView.setOnClickListener {
+            val fullscreenIntent = Intent(activity, FullscreenActivity::class.java)
+            val extras = Bundle()
+            val abstractProduct = DBStorageController(context).findAbstractProductById(DBStorageController(context).readableDatabase, product.abstractProductId)
+            extras.putString("imagehash", abstractProduct!!.imageHash)
+            fullscreenIntent.putExtras(extras)
+            startActivity(context, fullscreenIntent, extras)
+        }
+
         update()
     }
 
@@ -90,7 +100,12 @@ class ProductView: LinearLayout {
         productAmountTextView.text = product.amount.toString()
         productCategoryView.text = DBStorageController(activity).getCategoryNameById(DBStorageController(activity).readableDatabase, linkedAbstractProduct.category)
         productLifeSpan.text = "${product.dateOfProduction}-${product.dateOfExpiry}"
-
+        productFreshnessTextView.text =
+        if (product.freshness == Double.NEGATIVE_INFINITY || product.freshness == Double.POSITIVE_INFINITY) {
+            "Expired"
+        } else {
+            "${DecimalFormat("#.#").format(product.freshness*100)}%"
+        }
 
         updateStroke()
     }
@@ -118,17 +133,7 @@ class ProductView: LinearLayout {
 
     @RequiresApi(Build.VERSION_CODES.O)
     fun evaluateColor(): Int {
-        val dateFormatter: DateTimeFormatter =  DateTimeFormatter.ofPattern("d.M.yyyy")
+        val freshnessPercentage = calculateProductFreshness(product.dateOfProduction, product.dateOfExpiry)
-
-        val fresh = LocalDate.parse(product.dateOfProduction, dateFormatter)
-        val expired = LocalDate.parse(product.dateOfExpiry, dateFormatter)
-
-        val shelfLife = Duration.between(fresh.atStartOfDay(), expired.atStartOfDay()).toDays()
-        val today = LocalDate.parse(LocalDate.now().format(dateFormatter), dateFormatter)
-        val daysBeforeExpiry = Duration.between(today.atStartOfDay(), expired.atStartOfDay()).toDays()
-
-        val freshnessPercentage: Double = daysBeforeExpiry / shelfLife.toDouble()
-
         return calculateFreshnessGradient(freshnessPercentage)
     }
 
@@ -153,9 +158,6 @@ class ProductView: LinearLayout {
 
 
         val colorString = "#$redHex$greenHex$blueHex"
-        Log.d("QWERTYUIOP", "$red:$green:$blue")
-        Log.d("QWERTYUIOP", "$redHex-$greenHex-$blueHex")
-        Log.d("QWERTYUIOP", colorString)
         return Color.parseColor(colorString)
     }
 
@@ -166,8 +168,6 @@ class ProductView: LinearLayout {
         val red = c.red() * (1 - darkPercent)
         val green = c.green() * (1 - darkPercent)
         val blue = c.blue() * (1 - darkPercent)
-        Log.d("QWERTYUIOP", "....A:${c.red()}, ${c.green()}, ${c.blue()}")
-        Log.d("QWERTYUIOP", "....B:${red.toFloat()}, ${green.toFloat()}, ${blue.toFloat()}")
 
         return Color.rgb(red.toFloat(), green.toFloat(), blue.toFloat())
     }

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

@@ -1,7 +1,7 @@
 <LinearLayout
         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:layout_width="200dp"
+        xmlns:tools="http://schemas.android.com/tools" android:layout_width="190dp"
         android:layout_height="wrap_content" app:barrierMargin="1dp" android:clickable="false"
         android:outlineProvider="background" android:background="@drawable/outline">
 

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

@@ -3,9 +3,30 @@
              xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent"
              android:layout_height="match_parent">
 
-    <ScrollView
+    <androidx.constraintlayout.widget.ConstraintLayout
             android:layout_width="match_parent"
             android:layout_height="match_parent">
+
+        <TextView
+                android:text="Sort by"
+                android:layout_width="wrap_content"
+                android:layout_height="0dp" android:id="@+id/sortByTextView"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="parent"
+                app:layout_constraintBottom_toTopOf="@+id/scrollView" android:textAlignment="center"
+        />
+        <Spinner
+                android:layout_width="0dp"
+                android:layout_height="32dp" android:id="@+id/spinner"
+                app:layout_constraintTop_toTopOf="parent"
+                app:layout_constraintStart_toEndOf="@+id/sortByTextView"
+                app:layout_constraintEnd_toEndOf="parent" android:layout_marginStart="16dp"
+        />
+        <ScrollView
+                android:layout_width="match_parent"
+                android:layout_height="match_parent" app:layout_constraintTop_toBottomOf="@+id/spinner"
+                android:layout_marginTop="32dp" app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintEnd_toEndOf="parent" android:id="@+id/scrollView">
             <androidx.gridlayout.widget.GridLayout
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content" android:id="@+id/contentGridLayout" app:columnCount="2"
@@ -13,4 +34,5 @@
 
             </androidx.gridlayout.widget.GridLayout>
         </ScrollView>
+    </androidx.constraintlayout.widget.ConstraintLayout>
 </FrameLayout>

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

@@ -5,9 +5,29 @@
              android:layout_height="match_parent"
              android:id="@+id/fragment_storage"
              tools:context=".fragments.StorageFragment">
-    <ScrollView
+    <androidx.constraintlayout.widget.ConstraintLayout
             android:layout_width="match_parent"
             android:layout_height="match_parent">
+
+        <TextView
+                android:text="Sort by"
+                android:layout_width="wrap_content"
+                android:layout_height="0dp" android:id="@+id/sortByTextView"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="parent"
+                android:textAlignment="center"
+                app:layout_constraintBottom_toBottomOf="@+id/scrollView2"/>
+        <Spinner
+                android:layout_width="0dp"
+                android:layout_height="32dp" android:id="@+id/spinner"
+                app:layout_constraintTop_toTopOf="parent"
+                app:layout_constraintStart_toEndOf="@+id/sortByTextView"
+                app:layout_constraintEnd_toEndOf="parent" android:layout_marginStart="16dp"
+        />
+        <ScrollView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" app:layout_constraintTop_toBottomOf="@+id/spinner"
+                android:id="@+id/scrollView2">
             <androidx.gridlayout.widget.GridLayout
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content" android:id="@+id/contentGridLayout" app:columnCount="2"
@@ -15,4 +35,5 @@
 
             </androidx.gridlayout.widget.GridLayout>
         </ScrollView>
+    </androidx.constraintlayout.widget.ConstraintLayout>
 </FrameLayout>

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

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
               xmlns:app="http://schemas.android.com/apk/res-auto" android:orientation="vertical"
-              android:layout_width="200dp"
+              android:layout_width="190dp"
               android:layout_height="wrap_content">
 
     <androidx.constraintlayout.widget.ConstraintLayout
@@ -14,6 +14,12 @@
                 android:id="@+id/productPicture"
                 app:layout_constraintTop_toTopOf="parent" app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintEnd_toEndOf="parent"/>
+        <TextView
+                android:text="0%"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content" android:id="@+id/freshnessPercentTextView"
+                app:layout_constraintEnd_toEndOf="parent" android:layout_marginEnd="10dp"
+                app:layout_constraintTop_toTopOf="parent" android:layout_marginTop="5dp"/>
         <TextView
                 android:text="@string/sample_product_name"
                 android:layout_width="match_parent"