Improve ux by back btn to hide ui before exit - Android

composeApp/src/commonMain/kotlin/mg/dot/feufaro/ScreenSolfa.kt

@@ -56,7 +56,6 @@ object ScreenSolfa : Screen {
         var showContextualMenu = false
         var  viewportHeight by remember { mutableStateOf(0) }
 
-        var isScanning by remember { mutableStateOf(false) }
         var qrCodeResult by remember { mutableStateOf("Aucun code scanné") }
         LaunchedEffect(Unit) {
             DeepLinkHandler.onSongReceived = { content, filePath ->
@@ -88,9 +87,6 @@ object ScreenSolfa : Screen {
             solfaScreenModel,
             sharedScreenModel,
             qrCodeResult = qrCodeResult,
-            onScannerButtonClick = {
-                isScanning = true
-            },
             solfaScrollState = scrollState
         ) { paddingValues ->
             Box(

composeApp/src/commonMain/kotlin/mg/dot/feufaro/ui/DrawerUI.kt

@@ -40,6 +40,8 @@ import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import cafe.adriel.voyager.core.annotation.InternalVoyagerApi
+import cafe.adriel.voyager.navigator.internal.BackHandler
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
@@ -53,13 +55,13 @@ import mg.dot.feufaro.solfa.Transpose
 import mg.dot.feufaro.viewmodel.SolfaScreenModel
 import java.io.File
 
-@OptIn(ExperimentalMaterial3Api::class)
+
+@OptIn(ExperimentalMaterial3Api::class, InternalVoyagerApi::class)
 @Composable
 fun MainScreenWithDrawer(
     solfaScreenModel: SolfaScreenModel,
     sharedScreenModel: SharedScreenModel,
     qrCodeResult: String,
-    onScannerButtonClick: () -> Unit,
     solfaScrollState: ScrollState,
     content: @Composable (PaddingValues) -> Unit,
 ) {
@@ -199,6 +201,22 @@ fun MainScreenWithDrawer(
     val density = LocalDensity.current
     var keyboardHeightDp by remember { mutableStateOf(0.dp) }
 
+    BackHandler(enabled = isSearchActive) {
+        sharedScreenModel.showSearchMenu(false)
+    }
+    BackHandler(enabled = showMidiCtrl) {
+        sharedScreenModel.setMidiCtrl(false)
+    }
+    BackHandler(enabled = isQrVisible) {
+        sharedScreenModel.toggleQRCodeVisibility()
+    }
+    BackHandler(enabled = (!showMidiCtrl && isExpanded)) {
+        sharedScreenModel.setExpandedFAB(!isExpanded)
+    }
+    BackHandler(enabled = drawerState.isOpen) {
+        scope.launch { drawerState.close() }
+    }
+
     ModalNavigationDrawer(drawerState = drawerState, drawerContent = {
         SimpleDrawerContent(
             items,
@@ -207,10 +225,6 @@ fun MainScreenWithDrawer(
             currentActivePath,
             drawerState,
             scope,
-            onScannerButtonClick = {
-                scope.launch { drawerState.close() }
-                onScannerButtonClick()
-            },
             onSongSelected = { newSong ->
                 sharedScreenModel.loadNewSong("$midiFile")
             },

composeApp/src/commonMain/kotlin/mg/dot/feufaro/ui/SimpleDrawerContent.kt

@@ -45,7 +45,6 @@ fun SimpleDrawerContent(
     activePath: String = Solfa.currentFile,
     drawerState: DrawerState,
     scope: CoroutineScope,
-    onScannerButtonClick: () -> Unit,
     onSongSelected: (String) -> Unit,
     onSettingsCheck: () -> Unit,
     onAboutCheck: () -> Unit,
@@ -195,7 +194,7 @@ fun SimpleDrawerContent(
 
                         stickyHeader {
                             DrawerHeaderSticky(
-                                title = "Personnel",
+                                title = "Fichiers locaux",
                                 icon = Icons.Default.LibraryMusic,
                                 isExpanded = externalExpanded,
                                 onToggle = { externalExpanded = !externalExpanded },