navigation

app/build.gradle.kts

@@ -73,6 +73,7 @@ dependencies {
 
     implementation(libs.retrofit.adapters.arrow)
     implementation(libs.arrow.core)
+    implementation(libs.androidx.navigation.compose)
 
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)

app/src/main/java/com/iqball/app/MainActivity.kt

@@ -8,9 +8,14 @@ import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Surface
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.MutableState
+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 androidx.navigation.compose.NavHost
+import androidx.navigation.compose.composable
+import androidx.navigation.compose.rememberNavController
 import com.google.gson.Gson
 import com.iqball.app.api.EitherBodyConverter
 import com.iqball.app.api.EitherCallAdapterFactory
@@ -63,22 +68,35 @@ class MainActivity : ComponentActivity() {
 
 @Composable
 fun App(service: IQBallService, sessionState: MutableState<Session>) {
+    val navController = rememberNavController()
 
-    val registerPage: @Composable () -> Unit = {
-        RegisterPage(service = service, onRegisterSuccess = { auth ->
+    NavHost(navController = navController, startDestination = "login") {
+        composable("login") {
+            LoginPage(
+                service = service,
+                onLoginSuccess = { auth ->
                     sessionState.value = DataSession(auth)
-        })
+                    navController.navigate("home")
+                },
+                onNavigateToRegister = {
+                    navController.navigate("register")
                 }
-
-    val loginPage: @Composable () -> Unit = {
-        LoginPage(service = service, onLoginSuccess = { auth ->
+            )
+        }
+        composable("register") {
+            RegisterPage(
+                service = service,
+                onRegisterSuccess = { auth ->
                     sessionState.value = DataSession(auth)
-        })
+                    navController.navigate("home")
+                },
+                onNavigateToLogin = {
+                    navController.navigate("login")
+                }
+            )
+        }
+        composable("home") {
+            HomePage(service = service, session = sessionState.value)
+        }
     }
-    val homePage : @Composable () -> Unit = { HomePage(service, sessionState.value) }
-
-    //registerPage()
-    val currentPage = remember(sessionState.value.auth) { if (sessionState.value.auth == null) loginPage else homePage }
-    currentPage()
-
 }

app/src/main/java/com/iqball/app/page/LoginPage.kt

@@ -20,7 +20,11 @@ import kotlinx.coroutines.runBlocking
 
 
 @Composable
-fun LoginPage(service: AuthService, onLoginSuccess: (Authentication) -> Unit) {
+fun LoginPage(
+    service: AuthService,
+    onLoginSuccess: (Authentication) -> Unit,
+    onNavigateToRegister: () -> Unit
+) {
     var email by remember { mutableStateOf("") }
     var password by remember { mutableStateOf("") }
     var errors by remember { mutableStateOf("") }
@@ -87,6 +91,10 @@ fun LoginPage(service: AuthService, onLoginSuccess: (Authentication) -> Unit) {
             }) {
                 Text(text = "Se connecter")
             }
+            Spacer(modifier = Modifier.height(16.dp))
+            Button(onClick = { onNavigateToRegister() }) {
+                Text(text = "Vous n'avez pas de compte ?")
+            }
         }
     }
 }

app/src/main/java/com/iqball/app/page/RegisterPage.kt

@@ -28,7 +28,11 @@ import com.iqball.app.session.Authentication
 import kotlinx.coroutines.runBlocking
 
 @Composable
-fun RegisterPage(service: AuthService, onRegisterSuccess: (Authentication) -> Unit) {
+fun RegisterPage(
+    service: AuthService,
+    onRegisterSuccess: (Authentication) -> Unit,
+    onNavigateToLogin: () -> Unit
+) {
     var username by remember { mutableStateOf("") }
     var email by remember { mutableStateOf("") }
     var password by remember { mutableStateOf("") }
@@ -105,6 +109,10 @@ fun RegisterPage(service: AuthService, onRegisterSuccess: (Authentication) -> Un
             }) {
                 Text(text = "Créer votre compte")
             }
+            Spacer(modifier = Modifier.height(16.dp))
+            Button(onClick = { onNavigateToLogin() }) {
+                Text(text = "Vous avez déjà un compte ?")
+            }
         }
     }
 }

gradle/libs.versions.toml

@@ -15,6 +15,7 @@ composeBom = "2023.08.00"
 retrofit = "2.9.0"
 retrofit2KotlinxSerializationConverter = "1.0.0"
 retrofitAdaptersArrow = "1.0.9"
+navigationCompose = "2.7.7"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
@@ -38,6 +39,7 @@ kotlinx-serialization-json-jvm = { module = "org.jetbrains.kotlinx:kotlinx-seria
 retrofit = { module = "com.squareup.retrofit2:retrofit", version.ref = "retrofit" }
 retrofit-adapters-arrow = { module = "com.github.skydoves:retrofit-adapters-arrow", version.ref = "retrofitAdaptersArrow" }
 retrofit2-kotlinx-serialization-converter = { module = "com.jakewharton.retrofit:retrofit2-kotlinx-serialization-converter", version.ref = "retrofit2KotlinxSerializationConverter" }
+androidx-navigation-compose = { group = "androidx.navigation", name = "navigation-compose", version.ref = "navigationCompose" }
 
 [plugins]
 androidApplication = { id = "com.android.application", version.ref = "agp" }