Transparent navigation bar on Android 11-14

vkryl · vkryl · commit 11fed59e6616 · 2025-08-30T00:50:28.000+03:00
diff --git a/app/src/main/java/org/thunderdog/challegram/BaseActivity.java b/app/src/main/java/org/thunderdog/challegram/BaseActivity.java
@@ -461,6 +461,8 @@ public float windowRefreshRate () {
     return 60.0f;
   }
 
+  private boolean isGestureNavigationEnabled;
+
   @Override
   public void onCreate (Bundle savedInstanceState) {
     UI.setContext(this);
@@ -483,6 +485,7 @@ public void onCreate (Bundle savedInstanceState) {
     if (Config.USE_CUSTOM_NAVIGATION_COLOR) {
       this.isWindowLight = !Theme.isDark();
     }
+    this.isGestureNavigationEnabled = Screen.isGesturalNavigationEnabled(getResources());
     // UI.resetSizes();
     setActivityState(UI.State.RESUMED);
     TdlibManager.instance().watchDog().onActivityCreate(this);
@@ -1137,6 +1140,7 @@ public void onResume () {
       throw t;
     }
     checkAutoNightMode();
+    setGestureNavigationEnabled(Screen.isGesturalNavigationEnabled(getResources()));
     Intents.revokeFileReadPermissions();
     enableFocus();
     if (timeFilter == null) {
@@ -1309,6 +1313,13 @@ configMode, systemNightModeToString(configMode),
     }
   }
 
+  private void setGestureNavigationEnabled (boolean isEnabled) {
+    if (this.isGestureNavigationEnabled != isEnabled) {
+      this.isGestureNavigationEnabled = isEnabled;
+      updateNavigationBarColor();
+    }
+  }
+
   @Override
   public void onConfigurationChanged (@NonNull Configuration newConfig)  {
     super.onConfigurationChanged(newConfig);
@@ -1320,6 +1331,7 @@ public void onConfigurationChanged (@NonNull Configuration newConfig)  {
     if (camera != null) {
       camera.onConfigurationChanged(newConfig);
     }
+    setGestureNavigationEnabled(Screen.isGesturalNavigationEnabled(getResources()));
     currentOrientation = newConfig.orientation;
     Lang.checkLanguageCode();
     setSystemNightMode(newConfig.uiMode & Configuration.UI_MODE_NIGHT_MASK);
@@ -3352,7 +3364,7 @@ private void updateNavigationBarColor () {
         color = ColorUtils.fromToArgb(color, Theme.getColor(ColorId.passcode), passcodeFactor);
         isLight = isLight && passcodeFactor < .5f;
       }
-      UI.setNavigationBarColor(getWindow(), color);
+      UI.setNavigationBarColor(getWindow(), color, isGestureNavigationEnabled);
       if (this.isWindowLight != isLight) {
         this.isWindowLight = isLight;
         UI.setLightSystemBars(getWindow(), isLight, Theme.needLightStatusBar(), lastWindowVisibility, true);
diff --git a/app/src/main/java/org/thunderdog/challegram/tool/Screen.java b/app/src/main/java/org/thunderdog/challegram/tool/Screen.java
@@ -15,6 +15,7 @@
 package org.thunderdog.challegram.tool;
 
 import android.content.Context;
+import android.content.res.Resources;
 import android.graphics.Point;
 import android.graphics.Rect;
 import android.os.Build;
@@ -273,18 +274,18 @@ public static int getNavigationBarFrameDifference () {
 
   @Deprecated
   public static boolean needsKeyboardPadding (BaseActivity context) {
-    return context.isKeyboardVisible() && isGesturalNavigationEnabled() && getNavigationBarHeight() > 0;
+    return context.isKeyboardVisible() && isGesturalNavigationEnabled(UI.getResources()) && getNavigationBarHeight() > 0;
   }
 
-  private static boolean isGesturalNavigationEnabled () {
+  public static boolean isGesturalNavigationEnabled (Resources resources) {
     if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
       return false;
     }
 
     try {
-      int resourceId = UI.getResources().getIdentifier("config_navBarInteractionMode", "integer", "android");
+      int resourceId = resources.getIdentifier("config_navBarInteractionMode", "integer", "android");
       if (resourceId > 0) {
-        return UI.getResources().getInteger(resourceId) == 2; // 2 is gestural by AOSP docs, SO says some Samsung devices can have values like 17694897, needs further investigation
+        return resources.getInteger(resourceId) == 2; // 2 is gestural by AOSP docs, SO says some Samsung devices can have values like 17694897, needs further investigation
       }
     } catch (android.content.res.Resources.NotFoundException ignored) {}
 
diff --git a/app/src/main/java/org/thunderdog/challegram/tool/UI.java b/app/src/main/java/org/thunderdog/challegram/tool/UI.java
@@ -611,11 +611,15 @@ public static void setLightSystemBars (Window w, boolean lightNavigationBar, boo
     w.getDecorView().setSystemUiVisibility(visibility);
   }
 
-  public static void setNavigationBarColor (Window w, int color) {
+  public static void setNavigationBarColor (Window w, int color, boolean isGestureNavigationEnabled) {
     if (Config.USE_CUSTOM_NAVIGATION_COLOR) {
       if (Settings.instance().useEdgeToEdge()) {
-        int transparentColor = Color.alpha(color) == 255 ? ColorUtils.alphaColor(.75f , color) : color;
-        w.setNavigationBarColor(transparentColor);
+        if (isGestureNavigationEnabled) {
+          w.setNavigationBarColor(Color.TRANSPARENT);
+        } else {
+          int transparentColor = Color.alpha(color) == 255 ? ColorUtils.alphaColor(.75f, color) : color;
+          w.setNavigationBarColor(transparentColor);
+        }
       } else {
         w.setNavigationBarColor(color);
       }
@@ -640,7 +644,7 @@ public static void clearActivity (BaseActivity a) {
       w.setBackgroundDrawableResource(R.drawable.transparent);
     } else {
       if (Config.USE_CUSTOM_NAVIGATION_COLOR) {
-        setNavigationBarColor(w, Theme.backgroundColor());
+        setNavigationBarColor(w, Theme.backgroundColor(), Screen.isGesturalNavigationEnabled(getResources()));
       } else {
         w.setNavigationBarColor(NAVIGATION_BAR_COLOR);
       }
