Траблы с bottomNavBar'ом. ПОКА ЧТО все работает. Посмотрим что будет дальше!

.idea/misc.xml

@@ -1,6 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17_PREVIEW" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

app/src/main/java/com/example/shawarma/screens/cart/CartScreen.kt

@@ -0,0 +1,17 @@
+package com.example.shawarma.screens.cart
+
+import androidx.compose.foundation.layout.Box
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+
+@Composable
+fun CartScreen() {
+    Box(
+        contentAlignment = Alignment.Center
+    ) {
+        Text(
+            text = "Cart"
+        )
+    }
+}

app/src/main/java/com/example/shawarma/screens/discount/DiscountScreen.kt

@@ -0,0 +1,17 @@
+package com.example.shawarma.screens.discount
+
+import androidx.compose.foundation.layout.Box
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+
+@Composable
+fun DiscountScreen() {
+    Box(
+        contentAlignment = Alignment.Center
+    ) {
+        Text(
+            text = "Discount"
+        )
+    }
+}

app/src/main/java/com/example/shawarma/screens/home/HomeScreen.kt

@@ -0,0 +1,17 @@
+package com.example.shawarma.screens.home
+
+import androidx.compose.foundation.layout.Box
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+
+@Composable
+fun HomeScreen() {
+    Box(
+        contentAlignment = Alignment.Center
+    ) {
+        Text(
+            text = "Home"
+        )
+    }
+}

app/src/main/java/com/example/shawarma/utils/BottomNavItem.kt

@@ -0,0 +1,9 @@
+package com.example.shawarma.utils
+
+import com.example.shawarma.R
+
+sealed class BottomNavItem(var title:String, var icon:Int, var screen_route:String) {
+    object Home : BottomNavItem("Home", R.drawable.home_icon,ScreenPaths.home.name)
+    object Discount : BottomNavItem("Discount", R.drawable.discount_icon,ScreenPaths.discount.name)
+    object Cart : BottomNavItem("Cart", R.drawable.cart_icon,ScreenPaths.cart.name)
+}

app/src/main/java/com/example/shawarma/utils/ScreenPaths.kt

@@ -1,5 +1,5 @@
 package com.example.shawarma.utils
 
 enum class ScreenPaths {
-    authorization, registration
+    authorization, registration, home, discount, cart, orders
 }

app/src/main/java/com/example/shawarma/widgets/BottomNavBar.kt

@@ -0,0 +1,56 @@
+package com.example.shawarma.widgets
+
+import androidx.compose.material.BottomNavigation
+import androidx.compose.material.BottomNavigationItem
+import androidx.compose.material.Icon
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.unit.sp
+import androidx.navigation.NavController
+import androidx.navigation.compose.currentBackStackEntryAsState
+import com.example.shawarma.utils.BottomNavItem
+
+@Composable
+fun BottomNavBar(navController: NavController) {
+    val items = listOf(
+        BottomNavItem.Home,
+        BottomNavItem.Discount,
+        BottomNavItem.Cart,
+    )
+    BottomNavigation(
+        backgroundColor = Color.Green,
+        contentColor = Color.Cyan
+
+    ) {
+        val navBackStackEntry by navController.currentBackStackEntryAsState()
+        val currentRoute = navBackStackEntry?.destination?.route
+        items.forEach { item ->
+            BottomNavigationItem(
+                icon = { Icon(painterResource(id = item.icon), contentDescription = item.title) },
+                label = {
+                    Text(
+                        text = item.title,
+                        fontSize = 9.sp
+                    ) },
+                selectedContentColor = Color.Black,
+                unselectedContentColor = Color.Black.copy(0.4f),
+                alwaysShowLabel = true,
+                selected = currentRoute == item.screen_route,
+                onClick = {
+                    navController.navigate(item.screen_route) {
+                        navController.graph.startDestinationRoute?.let { screen_route ->
+                            popUpTo(screen_route) {
+                                saveState = true
+                            }
+                        }
+                        launchSingleTop = true
+                        restoreState = true
+                    }
+                }
+            )
+        }
+    }
+}

build.gradle

@@ -2,9 +2,15 @@ buildscript {
     ext {
         compose_ui_version = '1.2.0'
     }
+    repositories {
+        google()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:4.0.0'
+    }
 }// Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
-    id 'com.android.application' version '8.1.1' apply false
-    id 'com.android.library' version '8.1.1' apply false
+    id 'com.android.application' version '7.4.2' apply false
+    id 'com.android.library' version '7.4.2' apply false
     id 'org.jetbrains.kotlin.android' version '1.7.0' apply false
 }

gradle.properties

@@ -23,4 +23,5 @@ kotlin.code.style=official
 android.nonTransitiveRClass=true
 android.defaults.buildfeatures.buildconfig=true
 android.nonFinalResIds=false
-org.gradle.unsafe.configuration-cache=true
+org.gradle.unsafe.configuration-cache=true
+android.suppressUnsupportedCompileSdk=34