Use dark status bar icons when drawer is opened

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

@@ -97,6 +97,10 @@ class MainActivity : InjectingAppCompatActivity(), TaskListFragmentCallbackHandl
                     override fun onDrawerStateChanged(newState: Int) {
                         finishActionMode()
                     }
+
+                    override fun onDrawerClosed(drawerView: View) {
+                        taskListFragment?.themeColor?.setStatusBarColor(binding.drawerLayout)
+                    }
                 })
         handleIntent()
     }

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

@@ -131,7 +131,7 @@ class TaskListFragment : Fragment(), OnRefreshListener, Toolbar.OnMenuItemClickL
     private lateinit var search: MenuItem
     private var searchQuery: String? = null
     private var mode: ActionMode? = null
-    private lateinit var themeColor: ThemeColor
+    lateinit var themeColor: ThemeColor
     private lateinit var callbacks: TaskListFragmentCallbackHandler
 
     override fun onRefresh() {

app/src/main/java/org/tasks/extensions/View.kt

@@ -0,0 +1,13 @@
+package org.tasks.extensions
+
+import android.view.View
+
+object View {
+    fun View.lightStatusBar(isDark: Boolean) {
+        systemUiVisibility = if (isDark) {
+            systemUiVisibility or View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR
+        } else {
+            systemUiVisibility and View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR.inv()
+        }
+    }
+}

app/src/main/java/org/tasks/themes/ThemeColor.java

@@ -242,8 +242,7 @@ public class ThemeColor implements Pickable {
 
   public void setStatusBarColor(DrawerLayout drawerLayout) {
     drawerLayout.setStatusBarBackgroundColor(colorPrimary);
-    int systemUiVisibility = applyLightStatusBarFlag(drawerLayout.getSystemUiVisibility());
-    drawerLayout.setSystemUiVisibility(systemUiVisibility);
+    org.tasks.extensions.View.INSTANCE.lightStatusBar(drawerLayout, isDark);
   }
 
   public void setStatusBarColor(CollapsingToolbarLayout layout) {
@@ -261,9 +260,7 @@ public class ThemeColor implements Pickable {
   }
 
   public void applyToStatusBarIcons(Activity activity) {
-    View decorView = activity.getWindow().getDecorView();
-    int systemUiVisibility = applyLightStatusBarFlag(decorView.getSystemUiVisibility());
-    decorView.setSystemUiVisibility(systemUiVisibility);
+    org.tasks.extensions.View.INSTANCE.lightStatusBar(activity.getWindow().getDecorView(), isDark);
   }
 
   public void applyToNavigationBar(Activity activity) {
@@ -276,12 +273,6 @@ public class ThemeColor implements Pickable {
     }
   }
 
-  private int applyLightStatusBarFlag(int flag) {
-    return isDark
-        ? flag | View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR
-        : flag & ~View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
-  }
-
   @RequiresApi(api = VERSION_CODES.O)
   private int applyLightNavigationBar(int flag) {
     return isDark

app/src/main/java/org/tasks/ui/NavigationDrawerFragment.kt

@@ -27,6 +27,7 @@ import org.tasks.billing.PurchaseActivity
 import org.tasks.data.TaskDao
 import org.tasks.dialogs.NewFilterDialog.Companion.newFilterDialog
 import org.tasks.extensions.Context.openUri
+import org.tasks.extensions.View.lightStatusBar
 import org.tasks.filters.FilterProvider
 import org.tasks.filters.NavigationDrawerAction
 import org.tasks.intents.TaskIntents
@@ -106,6 +107,11 @@ class NavigationDrawerFragment : Fragment() {
     fun setUp(drawerLayout: DrawerLayout) {
         mFragmentContainerView = requireActivity().findViewById(FRAGMENT_NAVIGATION_DRAWER)
         mDrawerLayout = drawerLayout
+        mDrawerLayout.addDrawerListener(object : SimpleDrawerListener() {
+            override fun onDrawerOpened(drawerView: View) {
+                setStatusBarColors()
+            }
+        })
     }
 
     fun setSelected(selected: Filter?) = adapter.setSelected(selected)
@@ -127,12 +133,20 @@ class NavigationDrawerFragment : Fragment() {
 
     private fun close() = mDrawerLayout.closeDrawer(mFragmentContainerView!!)
 
-    fun openDrawer() = mDrawerLayout.openDrawer(mFragmentContainerView!!)
+    fun openDrawer() {
+        setStatusBarColors()
+        mDrawerLayout.openDrawer(mFragmentContainerView!!)
+    }
+
+    private fun setStatusBarColors() = mDrawerLayout.lightStatusBar(false)
 
     override fun onResume() {
         super.onResume()
         localBroadcastManager.registerRefreshListReceiver(refreshReceiver)
         updateFilters()
+        if (isDrawerOpen) {
+            setStatusBarColors()
+        }
     }
 
     private fun updateFilters() = lifecycleScope.launch {