moved update and delete buttons of category view to a toolbar

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

@@ -1,9 +1,11 @@
 package org.foxarmy.barcodescannerforemployees.activities
 
+import android.content.DialogInterface
 import android.content.Intent
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
+import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.content.ContextCompat
 import androidx.viewpager.widget.ViewPager
@@ -38,6 +40,7 @@ class MainActivity : AppCompatActivity() {
                     val extras = Bundle()
                     ContextCompat.startActivity(this, addProductIntent, extras)
                 }
+
                 "CategoriesFragment" -> {
                     val addCategoryIntent = Intent(this, AddCategoryActivity::class.java)
                     val extras = Bundle()
@@ -68,22 +71,54 @@ class MainActivity : AppCompatActivity() {
     }
 
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        val currentPosition = binding.tabTablayout.selectedTabPosition
+        val fragment = adapter.getItem(currentPosition)
+
         return when (item.itemId) {
+
+
             R.id.action_settings -> {
                 true
             }
+
             R.id.action_delete -> {
-                val currentPosition = binding.tabTablayout.selectedTabPosition
-                val fragment = adapter.getItem(currentPosition)
 
                 when (fragment::class.simpleName.toString()) {
                     "StorageFragment" -> {
                         val storageFragment = fragment as StorageFragment
                         storageFragment.removeSelected()
                     }
+
+                    "CategoriesFragment" -> {
+                        val builder = AlertDialog.Builder(this)
+                            .setMessage("Deleting a category will also delete ALL the products, that belong to that category. Do you want to proceed?")
+                            .setPositiveButton("Yes") { _: DialogInterface, _: Int ->
+                                val categoriesFragment = fragment as CategoriesFragment
+                                categoriesFragment.removeSelected()
+                            }
+                            .setNegativeButton("No") { _: DialogInterface, _: Int ->
+
+                            }.show()
+                    }
                 }
                 true
             }
+
+            R.id.action_update -> {
+                when (fragment::class.simpleName.toString()) {
+                    "StorageFragment" -> {
+                        val storageFragment = fragment as StorageFragment
+                        storageFragment.updateSelected()
+                    }
+
+                    "CategoriesFragment" -> {
+                        val categoriesFragment = fragment as CategoriesFragment
+                        categoriesFragment.updateSelected()
+                    }
+                }
+                true
+            }
+
             else -> super.onOptionsItemSelected(item)
         }
     }

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

@@ -1,16 +1,21 @@
 package org.foxarmy.barcodescannerforemployees.fragments
 
+import android.content.Intent
 import android.os.Bundle
 import android.provider.BaseColumns
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.LinearLayout
+import android.widget.Toast
+import androidx.core.content.ContextCompat
+import androidx.core.view.children
 import androidx.fragment.app.Fragment
 import org.foxarmy.barcodescannerforemployees.CategoriesContract
 import org.foxarmy.barcodescannerforemployees.Category
 import org.foxarmy.barcodescannerforemployees.DBStorageController
 import org.foxarmy.barcodescannerforemployees.R
+import org.foxarmy.barcodescannerforemployees.activities.AddCategoryActivity
 import org.foxarmy.barcodescannerforemployees.views.CategoryView
 
 class CategoriesFragment : Fragment() {
@@ -27,6 +32,40 @@ class CategoriesFragment : Fragment() {
         updateContent()
     }
 
+    fun removeSelected() {
+        val layout = view?.findViewById<LinearLayout>(R.id.categoriesLayout)
+
+        val db = DBStorageController(requireContext())
+        var deleted = false
+        for (view: CategoryView in layout?.children!!.iterator() as Iterator<CategoryView>) {
+            if (view.isCategorySelected) {
+                db.eraseCategory(db.writableDatabase, view.category.id, requireContext())
+                deleted = true
+            }
+        }
+
+        if (!deleted) {
+            Toast.makeText(requireContext(), "Nothing to delete", Toast.LENGTH_SHORT).show()
+        }
+        updateContent()
+    }
+
+    fun updateSelected() {
+        val layout = view?.findViewById<LinearLayout>(R.id.categoriesLayout)
+        for (view: CategoryView in layout?.children!!.iterator() as Iterator<CategoryView>) {
+            if (view.isCategorySelected) {
+                val addCategoryIntent = Intent(context, AddCategoryActivity::class.java)
+                val extras = Bundle()
+                extras.putInt("categoryid", view.category.id)
+                extras.putString("categoryname", view.category.name)
+                addCategoryIntent.putExtras(extras)
+                ContextCompat.startActivity(context!!, addCategoryIntent, extras)
+            }
+        }
+
+
+    }
+
     fun updateContent() {
         val layout = view?.findViewById<LinearLayout>(R.id.categoriesLayout)
         layout?.removeAllViews()

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

@@ -47,6 +47,10 @@ class StorageFragment : Fragment() {
         updateContent()
     }
 
+    fun updateSelected() {
+
+    }
+
     fun updateContent() {
 
         val grv = view?.findViewById<GridLayout>(R.id.contentGridLayout)

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

@@ -1,26 +1,21 @@
 package org.foxarmy.barcodescannerforemployees.views
 
 import android.app.Activity
-import android.app.AlertDialog
 import android.content.Context
-import android.content.DialogInterface
-import android.content.Intent
-import android.os.Bundle
 import android.view.LayoutInflater
-import android.widget.Button
 import android.widget.LinearLayout
 import android.widget.TextView
 import androidx.core.content.ContextCompat
 import org.foxarmy.barcodescannerforemployees.Category
-import org.foxarmy.barcodescannerforemployees.DBStorageController
 import org.foxarmy.barcodescannerforemployees.R
-import org.foxarmy.barcodescannerforemployees.activities.AddCategoryActivity
 
 class CategoryView : LinearLayout {
     var category: Category
     val categoryName: TextView
-    val updateButton: Button
-    val deleteButton: Button
+    val amountOfProducts: TextView
+    var isCategorySelected = false
+//    val updateButton: Button
+//    val deleteButton: Button
 
     constructor(activity: Activity, context: Context, category: Category) : super(context) {
         this.category = category
@@ -28,32 +23,41 @@ class CategoryView : LinearLayout {
         val inflater: LayoutInflater = activity.layoutInflater
         inflater.inflate(R.layout.category_view, this)
 
+        this.background = ContextCompat.getDrawable(context, if (isCategorySelected) R.drawable.outline_selected else R.drawable.outline)
+
         categoryName = findViewById(R.id.categoryNameTextView)
-        updateButton = findViewById(R.id.updateButton)
-        deleteButton = findViewById(R.id.deleteButton)
+        amountOfProducts = findViewById(R.id.amountOfProducts)
+//        updateButton = findViewById(R.id.updateButton)
+//        deleteButton = findViewById(R.id.deleteButton)
 
         categoryName.text = category.name
 
-        updateButton.setOnClickListener {
-            val addCategoryIntent = Intent(context, AddCategoryActivity::class.java)
-            val extras = Bundle()
-            extras.putInt("categoryid", category.id)
-            extras.putString("categoryname", category.name)
-            addCategoryIntent.putExtras(extras)
-            ContextCompat.startActivity(context, addCategoryIntent, extras)
+        setOnLongClickListener {
+            isCategorySelected = !isCategorySelected
+            this.background = ContextCompat.getDrawable(context, if (isCategorySelected) R.drawable.outline_selected else R.drawable.outline)
+            true
         }
 
-        deleteButton.setOnClickListener {
-            val builder = AlertDialog.Builder(context)
-                .setMessage("Deleting this category will also delete ALL the products, that belong to that category. Do you want to proceed?")
-                .setPositiveButton("Yes") { _: DialogInterface, _: Int ->
-                    val db = DBStorageController(context).writableDatabase
-                    DBStorageController(context).eraseCategory(db, category.id, context)
-
-                }
-                .setNegativeButton("No") { _: DialogInterface, _: Int ->
-
-                }.show()
-        }
+//        updateButton.setOnClickListener {
+//            val addCategoryIntent = Intent(context, AddCategoryActivity::class.java)
+//            val extras = Bundle()
+//            extras.putInt("categoryid", category.id)
+//            extras.putString("categoryname", category.name)
+//            addCategoryIntent.putExtras(extras)
+//            ContextCompat.startActivity(context, addCategoryIntent, extras)
+//        }
+//
+//        deleteButton.setOnClickListener {
+//            val builder = AlertDialog.Builder(context)
+//                .setMessage("Deleting this category will also delete ALL the products, that belong to that category. Do you want to proceed?")
+//                .setPositiveButton("Yes") { _: DialogInterface, _: Int ->
+//                    val db = DBStorageController(context).writableDatabase
+//                    DBStorageController(context).eraseCategory(db, category.id, context)
+//
+//                }
+//                .setNegativeButton("No") { _: DialogInterface, _: Int ->
+//
+//                }.show()
+//        }
     }
 }

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

@@ -7,13 +7,11 @@
     <TextView
             android:text="@string/sample_category"
             android:layout_width="wrap_content"
-            android:layout_height="wrap_content" android:id="@+id/categoryNameTextView" android:layout_weight="1"/>
-    <Button
-            android:layout_width="0dp"
-            android:layout_height="wrap_content" android:id="@+id/updateButton" android:layout_weight="1"
-            android:text="@string/update" android:lines="1"/>
-    <Button
-            android:text="@string/delete"
-            android:layout_width="0dp"
-            android:layout_height="wrap_content" android:id="@+id/deleteButton" android:layout_weight="1"/>
+            android:layout_height="wrap_content" android:id="@+id/categoryNameTextView" android:layout_weight="1"
+            android:textSize="25sp"/>
+    <TextView
+            android:text="0"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" android:id="@+id/amountOfProducts" android:layout_weight="1"
+            android:textAlignment="viewEnd" android:textSize="25sp"/>
 </LinearLayout>

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

@@ -7,4 +7,6 @@
           android:orderInCategory="100"
           app:showAsAction="never"/>
     <item android:id="@+id/action_delete" android:title="@string/delete_menu"/>
+    <item android:id="@+id/action_update" android:title="@string/update_menu"/>
+
 </menu>

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

@@ -23,6 +23,7 @@
     <string name="fullscreen_image">Fullscreen image</string>
     <string name="next">Next</string>
     <string name="delete_menu">Delete item(s)…</string>
+    <string name="update_menu">Update item</string>
     <string name="update">update</string>
     <string name="delete">delete</string>
     <string name="category">Category</string>