유저 인증 관련 클래스 기능 구현 & 리팩토링

frontend/app/build.gradle.kts

@@ -107,6 +107,11 @@ dependencies {
     // Gson
     implementation("com.google.code.gson:gson:2.9.0")
 
+    // DataStore
+    val dataStoreVersion = "1.0.0-alpha06"
+    implementation("androidx.datastore:datastore-preferences:$dataStoreVersion")
+    implementation("androidx.datastore:datastore-preferences-core:$dataStoreVersion")
+
     // Room
     val roomVersion = "2.6.0"
     implementation("androidx.room:room-ktx:$roomVersion")
@@ -130,7 +135,7 @@ dependencies {
     implementation("com.google.dagger:hilt-android:$hiltVersion")
     kapt("com.google.dagger:hilt-compiler:$hiltVersion")
 
-    implementation("androidx.hilt:hilt-navigation-compose:1.0.0")
+    implementation("androidx.hilt:hilt-navigation-compose:1.1.0")
 
     // MockK
     val mockkVersion = "1.13.8"

frontend/app/src/main/AndroidManifest.xml

@@ -5,7 +5,7 @@
     <uses-permission android:name="android.permission.INTERNET" />
 
     <application
-        android:name=".MainApplication"
+        android:name=".BaseApplication"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"
@@ -16,8 +16,9 @@
         android:theme="@style/Theme.SpeechBuddy"
         android:usesCleartextTraffic="true"
         tools:targetApi="31">
+        <activity android:name=".HomeActivity" />
         <activity
-            android:name=".MainActivity"
+            android:name=".AuthActivity"
             android:exported="true"
             android:theme="@style/Theme.SpeechBuddy">
             <intent-filter>

frontend/app/src/main/java/com/example/speechbuddy/AuthActivity.kt

@@ -0,0 +1,50 @@
+package com.example.speechbuddy
+
+import android.content.Intent
+import android.os.Bundle
+import androidx.activity.compose.setContent
+import androidx.activity.viewModels
+import androidx.core.view.WindowCompat
+import com.example.speechbuddy.compose.SpeechBuddyAuth
+import com.example.speechbuddy.ui.SpeechBuddyTheme
+import com.example.speechbuddy.viewmodel.LoginViewModel
+import dagger.hilt.android.AndroidEntryPoint
+
+@AndroidEntryPoint
+class AuthActivity : BaseActivity() {
+
+    private val loginViewModel: LoginViewModel by viewModels()
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        // Displaying edge-to-edge
+        WindowCompat.setDecorFitsSystemWindows(window, false)
+
+        subscribeObservers()
+        checkPreviousAuthUser()
+
+        setContent {
+            SpeechBuddyTheme {
+                SpeechBuddyAuth()
+            }
+        }
+    }
+
+    private fun subscribeObservers() {
+        sessionManager.isAuthorized.observe(this) { isAuthorized ->
+            if (isAuthorized) navHomeActivity()
+        }
+    }
+
+    private fun navHomeActivity() {
+        val intent = Intent(this, HomeActivity::class.java)
+        startActivity(intent)
+        finish()
+    }
+
+    private fun checkPreviousAuthUser() {
+        loginViewModel.checkPreviousUser()
+    }
+
+}

frontend/app/src/main/java/com/example/speechbuddy/BaseActivity.kt

@@ -0,0 +1,12 @@
+package com.example.speechbuddy
+
+import androidx.appcompat.app.AppCompatActivity
+import com.example.speechbuddy.domain.SessionManager
+import javax.inject.Inject
+
+abstract class BaseActivity : AppCompatActivity() {
+
+    @Inject
+    lateinit var sessionManager: SessionManager
+
+}

frontend/app/src/main/java/com/example/speechbuddy/BaseApplication.kt

@@ -0,0 +1,7 @@
+package com.example.speechbuddy
+
+import android.app.Application
+import dagger.hilt.android.HiltAndroidApp
+
+@HiltAndroidApp
+class BaseApplication : Application()

frontend/app/src/main/java/com/example/speechbuddy/MainActivity.kt → frontend/app/src/main/java/com/example/speechbuddy/HomeActivity.kt

@@ -1,28 +1,41 @@
 package com.example.speechbuddy
 
+import android.content.Intent
 import android.os.Bundle
-import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.core.view.WindowCompat
-import com.example.speechbuddy.MainApplication.Companion.token_prefs
-import com.example.speechbuddy.compose.SpeechBuddyApp
-import com.example.speechbuddy.domain.utils.TokenSharedPreferences
+import com.example.speechbuddy.compose.SpeechBuddyHome
 import com.example.speechbuddy.ui.SpeechBuddyTheme
 import dagger.hilt.android.AndroidEntryPoint
 
 @AndroidEntryPoint
-class MainActivity : ComponentActivity() {
+class HomeActivity : BaseActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
-        token_prefs = TokenSharedPreferences(applicationContext)
         super.onCreate(savedInstanceState)
 
         // Displaying edge-to-edge
         WindowCompat.setDecorFitsSystemWindows(window, false)
+
         setContent {
             SpeechBuddyTheme {
-                SpeechBuddyApp()
+                SpeechBuddyHome()
             }
         }
+
+        subscribeObservers()
+    }
+
+    private fun subscribeObservers() {
+        sessionManager.isAuthorized.observe(this) { isAuthorized ->
+            if (!isAuthorized) navAuthActivity()
+        }
+    }
+
+    private fun navAuthActivity() {
+        val intent = Intent(this, AuthActivity::class.java)
+        startActivity(intent)
+        finish()
     }
+
 }

frontend/app/src/main/java/com/example/speechbuddy/compose/SpeechBuddyApp.kt → frontend/app/src/main/java/com/example/speechbuddy/compose/SpeechBuddyAuth.kt

@@ -6,41 +6,33 @@ import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.rememberNavController
 import com.example.speechbuddy.compose.emailverification.EmailVerificationScreen
-import com.example.speechbuddy.compose.home.HomeScreen
 import com.example.speechbuddy.compose.landing.LandingScreen
 import com.example.speechbuddy.compose.login.LoginScreen
 import com.example.speechbuddy.compose.resetpassword.ResetPasswordScreen
 import com.example.speechbuddy.compose.signup.SignupScreen
 
 @Composable
-fun SpeechBuddyApp() {
+fun SpeechBuddyAuth() {
     val navController = rememberNavController()
-    SpeechBuddyNavHost(
+    SpeechBuddyAuthNavHost(
         navController = navController
     )
 }
 
 @Composable
-fun SpeechBuddyNavHost(
+fun SpeechBuddyAuthNavHost(
     navController: NavHostController
 ) {
-    // val activity = (LocalContext.current as Activity)
     NavHost(navController = navController, startDestination = "landing") {
         composable("landing") {
             LandingScreen(
-                onGuestClick = {
-                    navController.navigate("home")
-                },
                 onLoginClick = {
                     navController.navigate("login")
                 }
             )
         }
         composable("login") {
             LoginScreen(
-                onBackClick = {
-                    navController.navigateUp()
-                },
                 onResetPasswordClick = {
                     navController.navigate("email_verification/reset_password")
                 },
@@ -53,31 +45,24 @@ fun SpeechBuddyNavHost(
             val source = backStackEntry.arguments?.getString("source")
             EmailVerificationScreen(
                 source = source,
-                onBackClick = {
-                    navController.navigateUp()
-                },
-                navController = navController,
+                navigateCallback = { navController.navigate(it) }
             )
         }
-        composable("signup/{emailInput}") { backStackEntry ->
-            val emailInput = backStackEntry.arguments?.getString("emailInput")
+        composable("signup/{email}") { backStackEntry ->
+            val email = backStackEntry.arguments?.getString("email")
             SignupScreen(
-                onBackClick = {
-                    navController.navigateUp()
-                },
-                email = emailInput ?: ""
+                email = email ?: "",
+                navigateToLogin = {
+                    navController.navigate("login")
+                }
             )
         }
         composable("reset_password") {
             ResetPasswordScreen(
-                onBackClick = {
-                    navController.navigateUp()
-                },
-                navController = navController
+                navigateToLogin = {
+                    navController.navigate("login")
+                }
             )
         }
-        composable("home") {
-            HomeScreen()
-        }
     }
 }

frontend/app/src/main/java/com/example/speechbuddy/compose/home/HomeScreen.kt → frontend/app/src/main/java/com/example/speechbuddy/compose/SpeechBuddyHome.kt

@@ -1,7 +1,9 @@
-package com.example.speechbuddy.compose.home
+package com.example.speechbuddy.compose
 
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.WindowInsets
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Icon
@@ -36,7 +38,7 @@ data class BottomNavItem(
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
-fun HomeScreen() {
+fun SpeechBuddyHome() {
     val navController = rememberNavController()
     val navItems = listOf(
         BottomNavItem(
@@ -51,7 +53,7 @@ fun HomeScreen() {
         ),
         BottomNavItem(
             "symbol_creation",
-            R.string.symbol_creation,
+            R.string.create_new_symbol,
             R.drawable.outline_add_a_photo_24
         ),
         BottomNavItem(
@@ -62,6 +64,7 @@ fun HomeScreen() {
     )
 
     Scaffold(
+        modifier = Modifier.padding(bottom = 48.dp), // System Bar Padding
         bottomBar = {
             BottomNavigationBar(
                 items = navItems,
@@ -72,7 +75,7 @@ fun HomeScreen() {
             )
         }
     ) { paddingValues ->
-        HomeScreenNavHost(
+        SpeechBuddyHomeNavHost(
             navController = navController,
             bottomPaddingValues = paddingValues
         )
@@ -88,8 +91,9 @@ private fun BottomNavigationBar(
     val backStackEntry = navController.currentBackStackEntryAsState()
 
     NavigationBar(
+        modifier = Modifier.height(64.dp),
         containerColor = MaterialTheme.colorScheme.secondaryContainer,
-        windowInsets = WindowInsets(top = 20.dp)
+        windowInsets = WindowInsets(top = 16.dp)
     ) {
         items.forEach { item ->
             val selected = item.route == backStackEntry.value?.destination?.route
@@ -102,10 +106,10 @@ private fun BottomNavigationBar(
                         contentDescription = stringResource(id = item.nameResId)
                     )
                 },
-                modifier = Modifier.size(40.dp),
+                modifier = Modifier.size(32.dp),
                 colors = NavigationBarItemDefaults.colors(
-                    selectedIconColor = MaterialTheme.colorScheme.onPrimaryContainer,
-                    unselectedIconColor = MaterialTheme.colorScheme.outline
+                    selectedIconColor = MaterialTheme.colorScheme.onSecondaryContainer,
+                    unselectedIconColor = MaterialTheme.colorScheme.onSecondaryContainer.copy(alpha = .5f)
                 ),
                 interactionSource = NoRippleInteractionSource()
             )
@@ -114,7 +118,7 @@ private fun BottomNavigationBar(
 }
 
 @Composable
-private fun HomeScreenNavHost(
+private fun SpeechBuddyHomeNavHost(
     navController: NavHostController,
     bottomPaddingValues: PaddingValues
 ) {