tweak the bottom navigation and status bar of PhotoVideoActivity

app/src/main/kotlin/com/simplemobiletools/gallery/pro/activities/PhotoVideoActivity.kt

@@ -42,7 +42,6 @@ open class PhotoVideoActivity : SimpleActivity(), ViewPagerFragment.FragmentList
     public override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.fragment_holder)
-        setTranslucentNavigation()
 
         handlePermission(PERMISSION_WRITE_STORAGE) {
             if (it) {
@@ -56,7 +55,15 @@ open class PhotoVideoActivity : SimpleActivity(), ViewPagerFragment.FragmentList
 
     override fun onResume() {
         super.onResume()
-        supportActionBar?.setBackgroundDrawable(resources.getDrawable(R.drawable.gradient_background_flipped))
+        supportActionBar?.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
+        window.statusBarColor = Color.TRANSPARENT
+
+        if (config.bottomActions) {
+            window.navigationBarColor = Color.TRANSPARENT
+        } else {
+            setTranslucentNavigation()
+        }
+
         if (config.blackBackground) {
             updateStatusbarColor(Color.BLACK)
         }
@@ -273,8 +280,10 @@ open class PhotoVideoActivity : SimpleActivity(), ViewPagerFragment.FragmentList
             showSystemUI(true)
         }
 
+        val newAlpha = if (mIsFullScreen) 0f else 1f
+        top_shadow.animate().alpha(newAlpha).start()
         if (!bottom_actions.isGone()) {
-            bottom_actions.animate().alpha(if (mIsFullScreen) 0f else 1f).start()
+            bottom_actions.animate().alpha(newAlpha).start()
         }
     }
 

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

@@ -10,6 +10,12 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"/>
 
+    <ImageView
+        android:id="@+id/top_shadow"
+        android:layout_width="match_parent"
+        android:layout_height="@dimen/default_status_action_height"
+        android:background="@drawable/gradient_background_flipped"/>
+
     <include
         android:id="@+id/bottom_actions"
         layout="@layout/bottom_actions"/>