[FEAT] navigation 구현

app/build.gradle.kts

@@ -68,13 +68,15 @@ dependencies {
     implementation(libs.androidx.lifecycle.runtime.compose.android)
     implementation(libs.androidx.navigation.compose)
     implementation(libs.androidx.datastore.preferences)
+    implementation(libs.androidx.espresso.core)
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)
     androidTestImplementation(platform(libs.androidx.compose.bom))
     androidTestImplementation(libs.androidx.ui.test.junit4)
     debugImplementation(libs.androidx.ui.tooling)
     debugImplementation(libs.androidx.ui.test.manifest)
+    implementation(libs.kotlinx.collections.immutable)
 
     // Dots Indicator
     implementation("com.tbuonomo:dotsindicator:5.1.0")

app/src/main/java/com/kuit/ourmenu/MainActivity.kt

@@ -4,16 +4,25 @@ import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.navigationBarsPadding
+import androidx.compose.material3.Scaffold
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import com.kuit.ourmenu.ui.navigator.MainNavHost
+import com.kuit.ourmenu.ui.navigator.MainTab
+import com.kuit.ourmenu.ui.navigator.component.MainBottomBar
+import com.kuit.ourmenu.ui.navigator.rememberMainNavigator
 import androidx.navigation.compose.rememberNavController
 import coil3.imageLoader
-import com.kuit.ourmenu.ui.navigator.MainNavGraph
 import com.kuit.ourmenu.ui.onboarding.screen.SplashScreen
+import com.kuit.ourmenu.ui.theme.NeutralWhite
 import com.kuit.ourmenu.ui.theme.OurMenuTheme
 import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.collections.immutable.toPersistentList
 
 @AndroidEntryPoint
 class MainActivity : ComponentActivity() {
@@ -22,7 +31,9 @@ class MainActivity : ComponentActivity() {
         enableEdgeToEdge()
         setContent {
             var showSplash by remember { mutableStateOf(true) }
-            val navController = rememberNavController()
+
+            val navController = rememberMainNavigator()
+
             OurMenuTheme {
                 if (showSplash) {
                     SplashScreen(
@@ -31,8 +42,25 @@ class MainActivity : ComponentActivity() {
                         showSplash = false
                     }
                 } else {
-                    // TODO: MainNavigation 추가하기
-                    MainNavGraph(navController = navController)
+                    Scaffold(
+                        bottomBar = {
+                            MainBottomBar(
+                                modifier = Modifier
+                                    .background(NeutralWhite)
+                                    .navigationBarsPadding(),
+                                visible = navController.shouldShowBottomBar(),
+                                tabs = MainTab.entries.toPersistentList(),
+                                currentTab = navController.currentTab,
+                                onTabSelected = { navController.navigate(it) }
+                            )
+                        },
+                        content = { innerPadding ->
+                            MainNavHost(
+                                navController = navController,
+                                padding = innerPadding
+                            )
+                        }
+                    )
                 }
             }
         }

app/src/main/java/com/kuit/ourmenu/ui/home/navigation/HomeNavigation.kt

@@ -0,0 +1,24 @@
+package com.kuit.ourmenu.ui.home.navigation
+
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.navigation.NavController
+import androidx.navigation.NavGraphBuilder
+import androidx.navigation.NavOptions
+import androidx.navigation.compose.composable
+import com.kuit.ourmenu.ui.home.screen.HomeScreen
+import com.kuit.ourmenu.ui.navigator.MainTabRoute
+
+fun NavController.navigateToHome(navOptions: NavOptions) {
+    navigate(MainTabRoute.Home, navOptions)
+}
+
+fun NavGraphBuilder.homeNavGraph(
+    padding: PaddingValues,
+    // navigate 이벤트
+) {
+    composable<MainTabRoute.Home> {
+        HomeScreen(
+            // navigate 이벤트 + 기타 이벤트
+        )
+    }
+}

app/src/main/java/com/kuit/ourmenu/ui/home/screen/HomeScreen.kt

@@ -12,15 +12,14 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
-import androidx.navigation.NavHostController
 import androidx.navigation.compose.rememberNavController
 import com.kuit.ourmenu.ui.common.topappbar.OurMenuAddButtonTopAppBar
 import com.kuit.ourmenu.ui.home.component.recommendation.main.HomeMainRecommendation
 import com.kuit.ourmenu.ui.home.component.recommendation.sub.HomeSubRecommendation
 import com.kuit.ourmenu.ui.home.dummy.HomeDummyData
 
 @Composable
-fun HomeScreen(modifier: Modifier = Modifier, navController: NavHostController) {
+fun HomeScreen(modifier: Modifier = Modifier) {
 
     val scrollState = rememberScrollState()
 
@@ -69,5 +68,5 @@ fun HomeScreen(modifier: Modifier = Modifier, navController: NavHostController)
 @Composable
 private fun HomeScreenPreview() {
     val navController = rememberNavController()
-    HomeScreen(navController = navController)
+    HomeScreen()
 }

app/src/main/java/com/kuit/ourmenu/ui/menuFolder/navigation/MenuFolderNavigation.kt

@@ -0,0 +1,24 @@
+package com.kuit.ourmenu.ui.menuFolder.navigation
+
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.navigation.NavController
+import androidx.navigation.NavGraphBuilder
+import androidx.navigation.NavOptions
+import androidx.navigation.compose.composable
+import com.kuit.ourmenu.ui.menuFolder.screen.MenuFolderScreen
+import com.kuit.ourmenu.ui.navigator.MainTabRoute
+
+fun NavController.navigateToMenuFolder(navOptions: NavOptions) {
+    navigate(MainTabRoute.MenuFolder, navOptions)
+}
+
+fun NavGraphBuilder.menuFolderNavGraph(
+    padding: PaddingValues,
+    // navigate 이벤트
+) {
+    composable<MainTabRoute.MenuFolder> {
+        MenuFolderScreen(
+            // navigate 이벤트 + 기타 이벤트
+        )
+    }
+}

app/src/main/java/com/kuit/ourmenu/ui/my/navigation/MyNavigation.kt

@@ -0,0 +1,21 @@
+package com.kuit.ourmenu.ui.my.navigation
+
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.navigation.NavController
+import androidx.navigation.NavGraphBuilder
+import androidx.navigation.NavOptions
+import androidx.navigation.compose.composable
+import com.kuit.ourmenu.ui.navigator.MainTabRoute
+
+fun NavController.navigateToMy(navOptions: NavOptions) {
+    navigate(MainTabRoute.My, navOptions)
+}
+
+fun NavGraphBuilder.myNavGraph(
+    padding: PaddingValues,
+    // navigate 이벤트
+) {
+    composable<MainTabRoute.My> {
+        // MyScreen.kt
+    }
+}

app/src/main/java/com/kuit/ourmenu/ui/navigator/MainNavController.kt

@@ -0,0 +1,97 @@
+package com.kuit.ourmenu.ui.navigator
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.navigation.NavDestination
+import androidx.navigation.NavHostController
+import androidx.navigation.compose.currentBackStackEntryAsState
+import androidx.navigation.compose.rememberNavController
+import androidx.navigation.navOptions
+import com.kuit.ourmenu.ui.home.navigation.navigateToHome
+import com.kuit.ourmenu.ui.menuFolder.navigation.navigateToMenuFolder
+import com.kuit.ourmenu.ui.my.navigation.navigateToMy
+import com.kuit.ourmenu.ui.onboarding.navigation.navigateOnboardingToHome
+import com.kuit.ourmenu.ui.onboarding.navigation.navigateToLogin
+import com.kuit.ourmenu.ui.onboarding.navigation.navigateToSignupEmail
+import com.kuit.ourmenu.ui.onboarding.navigation.navigateToSignupMealTime
+import com.kuit.ourmenu.ui.onboarding.navigation.navigateToSignupPassword
+import com.kuit.ourmenu.ui.onboarding.navigation.navigateToSignupVerify
+import com.kuit.ourmenu.ui.searchmenu.navigation.navigateToSearchMenu
+
+class MainNavController(
+    val navController: NavHostController,
+) {
+    private val currentDestination: NavDestination?
+        @Composable get() = navController
+            .currentBackStackEntryAsState().value?.destination
+
+    val startDestination = Routes.Landing
+
+    val currentTab: MainTab?
+        @Composable get() = MainTab.entries.find { tab ->
+            currentDestination?.route == tab.route::class.qualifiedName
+        }
+
+    fun navigate(tab: MainTab) {
+        val navOptions = navOptions {
+            popUpTo(MainTab.HOME.route) {
+                inclusive = false
+            }
+            launchSingleTop = true
+            restoreState = true
+        }
+
+        when (tab) {
+            MainTab.HOME -> navController.navigateToHome(navOptions)
+            MainTab.MAP -> navController.navigateToSearchMenu(navOptions)
+            MainTab.MENU_FOLDER -> navController.navigateToMenuFolder(navOptions)
+            MainTab.MY -> navController.navigateToMy(navOptions)
+        }
+    }
+
+    // Back Pressed
+    fun navigateUp() {
+        navController.navigateUp()
+    }
+
+    // Onboarding
+    fun navigateToLogin() {
+        navController.navigateToLogin()
+    }
+
+    fun navigateToSignupEmail() {
+        navController.navigateToSignupEmail()
+    }
+
+    fun navigateToSignupPassword() {
+        navController.navigateToSignupPassword()
+    }
+
+    fun navigateToSignupMealTime() {
+        navController.navigateToSignupMealTime()
+    }
+
+    fun navigateToSignupVerify() {
+        navController.navigateToSignupVerify()
+    }
+
+    fun navigateOnboardingToHome() {
+        navController.navigateOnboardingToHome()
+    }
+
+    fun popBackStack() {
+        navController.popBackStack()
+    }
+
+    @Composable
+    fun shouldShowBottomBar(): Boolean = MainTab.contains {
+        currentDestination?.route?.startsWith(it::class.qualifiedName!!) == true
+    }
+}
+
+@Composable
+fun rememberMainNavigator(
+    navController: NavHostController = rememberNavController(),
+): MainNavController = remember(navController) {
+    MainNavController(navController)
+}