System bar scrim improvements

app/src/main/java/com/todoroo/astrid/activity/MainActivity.kt

@@ -123,10 +123,11 @@ class MainActivity : AppCompatActivity() {
                 lightScrim = Color.TRANSPARENT,
                 darkScrim = Color.TRANSPARENT
             ),
-            navigationBarStyle = SystemBarStyle.auto(
-                lightScrim = Color.TRANSPARENT,
-                darkScrim = Color.TRANSPARENT
-            )
+            navigationBarStyle = if (theme.themeBase.isDarkTheme(this)) {
+                SystemBarStyle.dark(Color.TRANSPARENT)
+            } else {
+                SystemBarStyle.light(Color.TRANSPARENT, Color.TRANSPARENT)
+            }
         )
 
         setContent {

app/src/main/java/com/todoroo/astrid/activity/TaskListFragment.kt

@@ -22,7 +22,6 @@ import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
 import android.view.ViewGroup.LAYOUT_DIRECTION_LTR
-import android.view.ViewGroup.MarginLayoutParams
 import androidx.activity.OnBackPressedCallback
 import androidx.activity.compose.BackHandler
 import androidx.activity.result.contract.ActivityResultContracts
@@ -338,7 +337,9 @@ class TaskListFragment : Fragment(), OnRefreshListener, Toolbar.OnMenuItemClickL
             right = endInset,
         )
         binding.bottomAppBar.updatePadding(bottom = bottomInset)
-        (binding.fab.layoutParams as MarginLayoutParams).bottomMargin = bottomInset / 2
+        val scrimLayoutParams = binding.systemBarScrim.layoutParams
+        scrimLayoutParams.height = bottomInset
+        binding.systemBarScrim.layoutParams = scrimLayoutParams
     }
 
     @OptIn(ExperimentalPermissionsApi::class)
@@ -365,6 +366,14 @@ class TaskListFragment : Fragment(), OnRefreshListener, Toolbar.OnMenuItemClickL
         listViewModel.setFilter(filter)
         (recyclerView.itemAnimator as DefaultItemAnimator).supportsChangeAnimations = false
         recyclerView.layoutManager = LinearLayoutManager(context)
+
+        val baseFooterHeight = resources.getDimensionPixelSize(R.dimen.task_list_footer_height)
+        val additionalFabSpace = TypedValue.applyDimension(
+            TypedValue.COMPLEX_UNIT_DIP,
+            56f,
+            resources.displayMetrics
+        ).toInt()
+        recyclerView.updatePadding(bottom = baseFooterHeight + additionalFabSpace)
         lifecycleScope.launch {
             viewLifecycleOwner.repeatOnLifecycle(Lifecycle.State.RESUMED) {
                 listViewModel.updateBannerState()
@@ -394,6 +403,11 @@ class TaskListFragment : Fragment(), OnRefreshListener, Toolbar.OnMenuItemClickL
                 binding.bottomAppBar.performShow()
             }
         }
+
+        val typedValue = TypedValue()
+        requireContext().theme.resolveAttribute(android.R.attr.colorBackground, typedValue, true)
+        val scrimColor = typedValue.data
+        binding.systemBarScrim.setBackgroundColor((scrimColor and 0x00FFFFFF) or 0xCC000000.toInt()) // 80% opacity
         with (binding.fab) {
             backgroundTintList = ColorStateList.valueOf(themeColor.primaryColor)
             imageTintList = ColorStateList.valueOf(themeColor.colorOnPrimary)

app/src/main/java/org/tasks/compose/home/HomeScreen.kt

@@ -20,6 +20,8 @@ import androidx.compose.foundation.layout.imePadding
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.systemBars
+import androidx.compose.foundation.layout.windowInsetsBottomHeight
+import androidx.compose.foundation.layout.windowInsetsTopHeight
 import androidx.compose.material3.DrawerState
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
@@ -121,6 +123,7 @@ fun HomeScreen(
                 ) {
                     val context = LocalContext.current
                     val scope = rememberCoroutineScope()
+                    Box(modifier = Modifier.fillMaxSize()) {
                         TaskListDrawer(
                             arrangement = if (state.menuQuery.isBlank()) Arrangement.Top else Arrangement.Bottom,
                             filters = if (state.menuQuery.isNotEmpty()) state.searchItems else state.drawerItems,
@@ -208,9 +211,22 @@ fun HomeScreen(
                                 )
                             },
                         )
+
+                        SystemBarScrim(
+                            modifier = Modifier
+                                .windowInsetsTopHeight(WindowInsets.systemBars)
+                                .align(Alignment.TopCenter)
+                        )
+                        SystemBarScrim(
+                            modifier = Modifier
+                                .windowInsetsBottomHeight(WindowInsets.systemBars)
+                                .align(Alignment.BottomCenter),
+                        )
+                    }
                 }
             }
         ) {
+            Box(modifier = Modifier.fillMaxSize()) {
                 val scope = rememberCoroutineScope()
                 ListDetailPaneScaffold(
                     directive = navigator.scaffoldDirective,
@@ -288,6 +304,13 @@ fun HomeScreen(
                         }
                     },
                 )
+
+                SystemBarScrim(
+                    modifier = Modifier
+                        .windowInsetsTopHeight(WindowInsets.systemBars)
+                        .align(Alignment.TopCenter),
+                )
+            }
         }
     }
 }

app/src/main/java/org/tasks/compose/home/SystemBarScrim.kt

@@ -0,0 +1,22 @@
+package org.tasks.compose.home
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+
+@Composable
+fun SystemBarScrim(
+    modifier: Modifier = Modifier,
+    color: Color = MaterialTheme.colorScheme.background,
+) {
+    Box(
+        modifier = Modifier
+            .fillMaxWidth()
+            .background(color.copy(alpha = 0.8f))
+            .then(modifier)
+    )
+}

app/src/main/res/layout/fragment_task_list.xml

@@ -68,6 +68,13 @@
 
   </LinearLayout>
 
+  <View
+      android:id="@+id/systemBarScrim"
+      android:layout_width="match_parent"
+      android:layout_height="56dp"
+      android:layout_gravity="bottom"
+      android:visibility="visible" />
+
   <com.google.android.material.bottomappbar.BottomAppBar
       android:id="@+id/bottomAppBar"
       style="@style/Widget.Material3.BottomAppBar"

kmp/src/commonMain/kotlin/org/tasks/compose/drawer/TaskListDrawer.kt

@@ -108,7 +108,7 @@ fun TaskListDrawer(
                             placeable.place(0, 0)
                         }
                     },
-                containerColor = MaterialTheme.colorScheme.surface,
+                containerColor = MaterialTheme.colorScheme.background,
                 scrollBehavior = bottomAppBarScrollBehavior
             ) {
                 searchBar()