From 32fe6c1e279de8ef980beb7a20c1e4170530c73f Mon Sep 17 00:00:00 2001
From: Steffen Heger <steffen.heger@gmail.com>
Date: Fri, 1 Nov 2024 12:43:16 +0100
Subject: [PATCH] prevent back navigation from login screen

---
 driver-app/app/src/main/java/de/motis/prima/Home.kt     | 3 ---
 driver-app/app/src/main/java/de/motis/prima/Login.kt    | 8 ++++++++
 driver-app/app/src/main/java/de/motis/prima/Tours.kt    | 3 ---
 driver-app/app/src/main/java/de/motis/prima/Vehicles.kt | 3 ---
 4 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/driver-app/app/src/main/java/de/motis/prima/Home.kt b/driver-app/app/src/main/java/de/motis/prima/Home.kt
index adb79b4..bed66d2 100644
--- a/driver-app/app/src/main/java/de/motis/prima/Home.kt
+++ b/driver-app/app/src/main/java/de/motis/prima/Home.kt
@@ -60,9 +60,6 @@ fun Home(
             viewModel.logoutEvent.collect {
                 Log.d("Logout", "Logout event triggered.")
                 navController.navigate("login") {
-                    popUpTo(navController.graph.startDestinationId) {
-                        inclusive = true
-                    }
                     launchSingleTop = true
                 }
             }
diff --git a/driver-app/app/src/main/java/de/motis/prima/Login.kt b/driver-app/app/src/main/java/de/motis/prima/Login.kt
index c58ecd6..315ca3d 100644
--- a/driver-app/app/src/main/java/de/motis/prima/Login.kt
+++ b/driver-app/app/src/main/java/de/motis/prima/Login.kt
@@ -1,6 +1,8 @@
 package de.motis.prima
 
+import android.app.Activity
 import android.util.Log
+import androidx.activity.compose.BackHandler
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.BoxWithConstraints
 import androidx.compose.foundation.layout.Column
@@ -25,6 +27,7 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.input.KeyboardType
@@ -81,6 +84,11 @@ fun Login(
 
     val networkErrorMessage = stringResource(id = R.string.network_error_message)
 
+    val activity = (LocalContext.current as? Activity)
+    BackHandler {
+        activity?.finish()
+    }
+
     LaunchedEffect(key1 = viewModel) {
         // Catching successful login event and navigation to the next screen
         launch {
diff --git a/driver-app/app/src/main/java/de/motis/prima/Tours.kt b/driver-app/app/src/main/java/de/motis/prima/Tours.kt
index 120eb00..dfc9353 100644
--- a/driver-app/app/src/main/java/de/motis/prima/Tours.kt
+++ b/driver-app/app/src/main/java/de/motis/prima/Tours.kt
@@ -60,9 +60,6 @@ fun Tours(
             viewModel.logoutEvent.collect {
                 Log.d("Logout", "Logout event triggered.")
                 navController.navigate("login") {
-                    popUpTo(navController.graph.startDestinationId) {
-                        inclusive = true
-                    }
                     launchSingleTop = true
                 }
             }
diff --git a/driver-app/app/src/main/java/de/motis/prima/Vehicles.kt b/driver-app/app/src/main/java/de/motis/prima/Vehicles.kt
index 90d6ee6..67b939b 100644
--- a/driver-app/app/src/main/java/de/motis/prima/Vehicles.kt
+++ b/driver-app/app/src/main/java/de/motis/prima/Vehicles.kt
@@ -60,9 +60,6 @@ fun Vehicles(
             viewModel.logoutEvent.collect {
                 Log.d("Logout", "Logout event triggered.")
                 navController.navigate("login") {
-                    popUpTo(navController.graph.startDestinationId) {
-                        inclusive = true
-                    }
                     launchSingleTop = true
                 }
             }