Fix Immersive Interface on Android R. Set targetSdkVersion and compileSdkVersion to 30.

app/build.gradle

@@ -1,11 +1,11 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 29
+    compileSdkVersion 30
     defaultConfig {
         applicationId "ml.docilealligator.infinityforreddit"
         minSdkVersion 21
-        targetSdkVersion 29
+        targetSdkVersion 30
         versionCode 43
         versionName "4.0.7"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/AccountPostsActivity.java

@@ -6,6 +6,7 @@ import android.os.Bundle;
 import android.view.KeyEvent;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.view.View;
 import android.view.Window;
 import android.view.WindowManager;
 
@@ -28,11 +29,11 @@ import butterknife.BindView;
 import butterknife.ButterKnife;
 import ml.docilealligator.infinityforreddit.ActivityToolbarInterface;
 import ml.docilealligator.infinityforreddit.AsyncTask.GetCurrentAccountAsyncTask;
+import ml.docilealligator.infinityforreddit.BottomSheetFragment.PostLayoutBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.CustomTheme.CustomThemeWrapper;
 import ml.docilealligator.infinityforreddit.Event.ChangeNSFWEvent;
 import ml.docilealligator.infinityforreddit.Event.SwitchAccountEvent;
 import ml.docilealligator.infinityforreddit.Fragment.PostFragment;
-import ml.docilealligator.infinityforreddit.BottomSheetFragment.PostLayoutBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.FragmentCommunicator;
 import ml.docilealligator.infinityforreddit.Infinity;
 import ml.docilealligator.infinityforreddit.Post.PostDataSource;
@@ -107,7 +108,13 @@ public class AccountPostsActivity extends BaseActivity implements SortTypeSelect
             }
 
             if (isImmersiveInterface()) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                } else {
                     window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+                }
                 adjustToolbar(toolbar);
             }
         }

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/AccountSavedThingActivity.java

@@ -6,6 +6,7 @@ import android.os.Bundle;
 import android.view.KeyEvent;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.view.View;
 import android.view.ViewGroup;
 import android.view.Window;
 import android.view.WindowManager;
@@ -117,7 +118,13 @@ public class AccountSavedThingActivity extends BaseActivity implements ActivityT
             }
 
             if (isImmersiveInterface()) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                } else {
                     window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+                }
                 adjustToolbar(toolbar);
             }
         }

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/BaseActivity.java

@@ -5,6 +5,7 @@ import android.content.SharedPreferences;
 import android.content.res.ColorStateList;
 import android.content.res.Configuration;
 import android.content.res.Resources;
+import android.graphics.Color;
 import android.graphics.drawable.Drawable;
 import android.os.Build;
 import android.os.Bundle;
@@ -127,9 +128,6 @@ public abstract class BaseActivity extends AppCompatActivity {
 
         Window window = getWindow();
         View decorView = window.getDecorView();
-        if (!hasDrawerLayout) {
-            window.setStatusBarColor(customThemeWrapper.getColorPrimaryDark());
-        }
         boolean isLightStatusbar = customThemeWrapper.isLightStatusBar();
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
             boolean isLightNavBar = customThemeWrapper.isLightNavBar();
@@ -160,7 +158,15 @@ public abstract class BaseActivity extends AppCompatActivity {
                 }
             }
             decorView.setSystemUiVisibility(systemVisibilityToolbarExpanded);
+            if (!(immersiveInterface && isImmersiveInterfaceApplicable)) {
                 window.setNavigationBarColor(customThemeWrapper.getNavBarColor());
+                if (!hasDrawerLayout) {
+                    window.setStatusBarColor(customThemeWrapper.getColorPrimaryDark());
+                }
+            } else {
+                window.setNavigationBarColor(Color.TRANSPARENT);
+                window.setStatusBarColor(Color.TRANSPARENT);
+            }
         } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
             if (isLightStatusbar) {
                 decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/CommentActivity.java

@@ -112,6 +112,8 @@ public class CommentActivity extends BaseActivity {
     protected void onCreate(Bundle savedInstanceState) {
         ((Infinity) getApplication()).getAppComponent().inject(this);
 
+        setImmersiveModeNotApplicable();
+
         super.onCreate(savedInstanceState);
 
         setContentView(R.layout.activity_comment);

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/FilteredThingActivity.java

@@ -6,6 +6,7 @@ import android.os.Bundle;
 import android.view.KeyEvent;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.view.View;
 import android.view.Window;
 import android.view.WindowManager;
 
@@ -28,14 +29,14 @@ import butterknife.BindView;
 import butterknife.ButterKnife;
 import ml.docilealligator.infinityforreddit.ActivityToolbarInterface;
 import ml.docilealligator.infinityforreddit.AsyncTask.GetCurrentAccountAsyncTask;
-import ml.docilealligator.infinityforreddit.CustomTheme.CustomThemeWrapper;
-import ml.docilealligator.infinityforreddit.Event.SwitchAccountEvent;
-import ml.docilealligator.infinityforreddit.Fragment.PostFragment;
 import ml.docilealligator.infinityforreddit.BottomSheetFragment.PostLayoutBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.BottomSheetFragment.SearchPostSortTypeBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.BottomSheetFragment.SortTimeBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.BottomSheetFragment.SortTypeBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.BottomSheetFragment.UserThingSortTypeBottomSheetFragment;
+import ml.docilealligator.infinityforreddit.CustomTheme.CustomThemeWrapper;
+import ml.docilealligator.infinityforreddit.Event.SwitchAccountEvent;
+import ml.docilealligator.infinityforreddit.Fragment.PostFragment;
 import ml.docilealligator.infinityforreddit.FragmentCommunicator;
 import ml.docilealligator.infinityforreddit.Infinity;
 import ml.docilealligator.infinityforreddit.Post.Post;
@@ -124,7 +125,13 @@ public class FilteredThingActivity extends BaseActivity implements SortTypeSelec
             }
 
             if (isImmersiveInterface()) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                } else {
                     window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+                }
                 adjustToolbar(toolbar);
             }
         }

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/InboxActivity.java

@@ -5,6 +5,7 @@ import android.os.Build;
 import android.os.Bundle;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.view.View;
 import android.view.ViewGroup;
 import android.view.Window;
 import android.view.WindowManager;
@@ -38,9 +39,9 @@ import ml.docilealligator.infinityforreddit.AsyncTask.GetCurrentAccountAsyncTask
 import ml.docilealligator.infinityforreddit.AsyncTask.SwitchAccountAsyncTask;
 import ml.docilealligator.infinityforreddit.CustomTheme.CustomThemeWrapper;
 import ml.docilealligator.infinityforreddit.Event.SwitchAccountEvent;
-import ml.docilealligator.infinityforreddit.Message.FetchMessage;
 import ml.docilealligator.infinityforreddit.Fragment.InboxFragment;
 import ml.docilealligator.infinityforreddit.Infinity;
+import ml.docilealligator.infinityforreddit.Message.FetchMessage;
 import ml.docilealligator.infinityforreddit.R;
 import ml.docilealligator.infinityforreddit.RedditDataRoomDatabase;
 import ml.docilealligator.infinityforreddit.Utils.SharedPreferencesUtils;
@@ -109,7 +110,13 @@ public class InboxActivity extends BaseActivity implements ActivityToolbarInterf
             }
 
             if (isImmersiveInterface()) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    mCoordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                } else {
                     window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+                }
                 adjustToolbar(mToolbar);
             }
         }

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/LinkResolverActivity.java

@@ -195,7 +195,7 @@ public class LinkResolverActivity extends AppCompatActivity {
                         } else if (authority.contains("redgifs.com")) {
                             if (path.matches(REDGIFS_PATTERN)) {
                                 Intent intent = new Intent(this, ViewVideoActivity.class);
-                                intent.putExtra(ViewVideoActivity.EXTRA_GFYCAT_ID, path.substring(7));
+                                intent.putExtra(ViewVideoActivity.EXTRA_GFYCAT_ID, path.substring(path.lastIndexOf("/") + 1));
                                 intent.putExtra(ViewVideoActivity.EXTRA_VIDEO_TYPE, ViewVideoActivity.VIDEO_TYPE_REDGIFS);
                                 intent.putExtra(ViewVideoActivity.EXTRA_IS_NSFW, true);
                                 startActivity(intent);

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/MainActivity.java

@@ -223,7 +223,14 @@ public class MainActivity extends BaseActivity implements SortTypeSelectionCallb
             }
 
             if (isImmersiveInterface()) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    drawer.setFitsSystemWindows(false);
+                    drawer.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                } else {
                     window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+                }
                 adjustToolbar(toolbar);
 
                 int navBarHeight = getNavBarHeight();

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/RulesActivity.java

@@ -93,7 +93,13 @@ public class RulesActivity extends BaseActivity {
             }
 
             if (isImmersiveInterface()) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                } else {
                     window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+                }
                 adjustToolbar(toolbar);
 
                 int navBarHeight = getNavBarHeight();

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/SearchResultActivity.java

@@ -7,6 +7,7 @@ import android.os.Bundle;
 import android.view.KeyEvent;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.view.View;
 import android.view.ViewGroup;
 import android.view.Window;
 import android.view.WindowManager;
@@ -34,14 +35,14 @@ import butterknife.BindView;
 import butterknife.ButterKnife;
 import ml.docilealligator.infinityforreddit.ActivityToolbarInterface;
 import ml.docilealligator.infinityforreddit.AsyncTask.GetCurrentAccountAsyncTask;
-import ml.docilealligator.infinityforreddit.CustomTheme.CustomThemeWrapper;
-import ml.docilealligator.infinityforreddit.Event.ChangeNSFWEvent;
-import ml.docilealligator.infinityforreddit.Event.SwitchAccountEvent;
-import ml.docilealligator.infinityforreddit.Fragment.PostFragment;
 import ml.docilealligator.infinityforreddit.BottomSheetFragment.PostLayoutBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.BottomSheetFragment.SearchPostSortTypeBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.BottomSheetFragment.SearchUserAndSubredditSortTypeBottomSheetFragment;
 import ml.docilealligator.infinityforreddit.BottomSheetFragment.SortTimeBottomSheetFragment;
+import ml.docilealligator.infinityforreddit.CustomTheme.CustomThemeWrapper;
+import ml.docilealligator.infinityforreddit.Event.ChangeNSFWEvent;
+import ml.docilealligator.infinityforreddit.Event.SwitchAccountEvent;
+import ml.docilealligator.infinityforreddit.Fragment.PostFragment;
 import ml.docilealligator.infinityforreddit.Fragment.SubredditListingFragment;
 import ml.docilealligator.infinityforreddit.Fragment.UserListingFragment;
 import ml.docilealligator.infinityforreddit.FragmentCommunicator;
@@ -123,7 +124,13 @@ public class SearchResultActivity extends BaseActivity implements SortTypeSelect
             }
 
             if (isImmersiveInterface()) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                } else {
                     window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+                }
                 adjustToolbar(toolbar);
             }
         }

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/SearchSubredditsResultActivity.java

@@ -6,6 +6,7 @@ import android.content.SharedPreferences;
 import android.os.Build;
 import android.os.Bundle;
 import android.view.MenuItem;
+import android.view.View;
 import android.view.Window;
 import android.view.WindowManager;
 
@@ -90,7 +91,13 @@ public class SearchSubredditsResultActivity extends BaseActivity implements Acti
             }
 
             if (isImmersiveInterface()) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                } else {
                     window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+                }
                 adjustToolbar(toolbar);
             }
         }

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/SubredditMultiselectionActivity.java

@@ -111,7 +111,13 @@ public class SubredditMultiselectionActivity extends BaseActivity implements Act
             }
 
             if (isImmersiveInterface()) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    mCoordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                } else {
                     window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+                }
                 adjustToolbar(mToolbar);
 
                 int navBarHeight = getNavBarHeight();

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/SubredditSelectionActivity.java

@@ -7,6 +7,7 @@ import android.os.Build;
 import android.os.Bundle;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.view.View;
 import android.view.Window;
 import android.view.WindowManager;
 
@@ -109,7 +110,13 @@ public class SubredditSelectionActivity extends BaseActivity implements Activity
             }
 
             if (isImmersiveInterface()) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                } else {
                     window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+                }
                 adjustToolbar(toolbar);
             }
         }

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/SubscribedThingListingActivity.java

@@ -5,6 +5,7 @@ import android.content.SharedPreferences;
 import android.os.Build;
 import android.os.Bundle;
 import android.view.MenuItem;
+import android.view.View;
 import android.view.ViewGroup;
 import android.view.Window;
 import android.view.WindowManager;
@@ -126,7 +127,13 @@ public class SubscribedThingListingActivity extends BaseActivity implements Acti
             }
 
             if (isImmersiveInterface()) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                } else {
                     window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+                }
                 adjustToolbar(toolbar);
 
                 int navBarHeight = getNavBarHeight();

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ThemePreviewActivity.java

@@ -227,7 +227,13 @@ public class ThemePreviewActivity extends AppCompatActivity {
 
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
             if (immersiveInterface) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                } else {
                     window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+                }
 
                 Resources resources = getResources();
                 int navBarResourceId = resources.getIdentifier("navigation_bar_height", "dimen", "android");

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewPostDetailActivity.java

@@ -239,7 +239,13 @@ public class ViewPostDetailActivity extends BaseActivity implements FlairBottomS
             }
 
             if (isImmersiveInterface()) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    mCoordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                } else {
                     window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+                }
                 adjustToolbar(mToolbar);
 
                 int navBarHeight = getNavBarHeight();

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewSubredditDetailActivity.java

@@ -222,7 +222,14 @@ public class ViewSubredditDetailActivity extends BaseActivity implements SortTyp
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
             Window window = getWindow();
             if (isImmersiveInterface()) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+                    coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                } else {
                     window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+                }
                 showToast = true;
 
                 int navBarHeight = getNavBarHeight();

app/src/main/java/ml/docilealligator/infinityforreddit/Activity/ViewUserDetailActivity.java

@@ -236,7 +236,14 @@ public class ViewUserDetailActivity extends BaseActivity implements SortTypeSele
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
             Window window = getWindow();
             if (isImmersiveInterface()) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                    window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+                    coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
+                            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
+                            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                } else {
                     window.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
+                }
                 showToast = true;
             }
 

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

@@ -24,7 +24,6 @@
             android:layout_width="match_parent"
             android:layout_height="match_parent"
             app:titleEnabled="false"
-            app:contentScrim="?attr/colorPrimary"
             app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed"
             app:toolbarId="@+id/toolbar">
 

app/src/main/res/values/styles.xml

@@ -43,10 +43,6 @@
         <item name="android:windowTranslucentStatus">true</item>
     </style>
 
-    <style name="AppTheme.SlidableWithTransparentStatusBar" parent="AppTheme.Slidable">
-        <item name="android:statusBarColor">@android:color/transparent</item>
-    </style>
-
     <style name="AppTheme.Draggable" parent="AppTheme">
         <item name="android:colorBackgroundCacheHint">@null</item>
         <item name="android:windowContentOverlay">@null</item>