Creating project

app/src/main/AndroidManifest.xml

@@ -9,7 +9,7 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.ShoppingList">
-        <activity android:name=".MainActivity">
+        <activity android:name=".presentation.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 

app/src/main/java/com/sumin/shoppinglist/domain/AddShopItemUseCase.kt

@@ -0,0 +1,8 @@
+package com.sumin.shoppinglist.domain
+
+class AddShopItemUseCase {
+
+    fun addShopItem(shopItem: ShopItem){
+        TODO()
+    }
+}

app/src/main/java/com/sumin/shoppinglist/domain/DeleteShopItemUseCase.kt

@@ -0,0 +1,8 @@
+package com.sumin.shoppinglist.domain
+
+class DeleteShopItemUseCase {
+
+    fun deleteShopItem(shopItem: ShopItem){
+
+    }
+}

app/src/main/java/com/sumin/shoppinglist/domain/EditShopItemUseCase.kt

@@ -0,0 +1,8 @@
+package com.sumin.shoppinglist.domain
+
+class EditShopItemUseCase {
+
+    fun editShopItem(shopItem: ShopItem){
+
+    }
+}

app/src/main/java/com/sumin/shoppinglist/domain/GetShopItemByIdUseCase.kt

@@ -0,0 +1,8 @@
+package com.sumin.shoppinglist.domain
+
+class GetShopItemByIdUseCase {
+
+    fun getShopItemById(id: Int): ShopItem{
+        TODO()
+    }
+}

app/src/main/java/com/sumin/shoppinglist/domain/GetShopListUseCase.kt

@@ -0,0 +1,8 @@
+package com.sumin.shoppinglist.domain
+
+class GetShopListUseCase {
+
+    fun getShopList(): List<ShopItem>{
+        TODO()
+    }
+}

app/src/main/java/com/sumin/shoppinglist/domain/ShopItem.kt

@@ -0,0 +1,8 @@
+package com.sumin.shoppinglist.domain
+
+data class ShopItem(
+    val id: Int,
+    val name: String,
+    val count: Int,
+    val enabled: Boolean
+)

app/src/main/java/com/sumin/shoppinglist/MainActivity.kt → app/src/main/java/com/sumin/shoppinglist/presentation/MainActivity.kt

@@ -1,7 +1,8 @@
-package com.sumin.shoppinglist
+package com.sumin.shoppinglist.presentation
 
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import com.sumin.shoppinglist.R
 
 class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {

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

@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".MainActivity">
+    tools:context=".presentation.MainActivity">
 
     <TextView
         android:layout_width="wrap_content"

build.gradle

@@ -1,12 +1,12 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-    ext.kotlin_version = "1.5.10"
+    ext.kotlin_version = '1.6.21'
     repositories {
         google()
         mavenCentral()
     }
     dependencies {
-        classpath "com.android.tools.build:gradle:4.2.1"
+        classpath 'com.android.tools.build:gradle:7.4.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
-#Wed Jun 02 10:57:46 MSK 2021
 distributionBase=GRADLE_USER_HOME
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-bin.zip
 distributionPath=wrapper/dists
-zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-bin.zip
 zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists