- added SettingsUtils

- apply SettingsUtils.applyDayNightTheme() on each activity

app/src/main/java/org/transdroid/core/app/settings/SettingsUtils.java

@@ -0,0 +1,23 @@
+package org.transdroid.core.app.settings;
+
+
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.app.AppCompatDelegate;
+
+public class SettingsUtils {
+    /**
+     * Set the theme according to the user preference.
+     */
+    public static void applyDayNightTheme(AppCompatActivity activity) {
+        SystemSettings settings = SystemSettings_.getInstance_(activity);
+
+        if (settings.autoDarkTheme()) {
+            AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM);
+        } else {
+            AppCompatDelegate.setDefaultNightMode(settings.useDarkTheme() ?
+                    AppCompatDelegate.MODE_NIGHT_YES :
+                    AppCompatDelegate.MODE_NIGHT_NO
+            );
+        }
+    }
+}

app/src/main/java/org/transdroid/core/gui/DetailsActivity.java

@@ -40,7 +40,7 @@ import org.androidannotations.annotations.ViewById;
 import org.transdroid.R;
 import org.transdroid.core.app.settings.ApplicationSettings;
 import org.transdroid.core.app.settings.ServerSetting;
-import org.transdroid.core.app.settings.SystemSettings_;
+import org.transdroid.core.app.settings.SettingsUtils;
 import org.transdroid.core.gui.lists.LocalTorrent;
 import org.transdroid.core.gui.log.Log;
 import org.transdroid.core.gui.navigation.Label;
@@ -114,10 +114,7 @@ public class DetailsActivity extends AppCompatActivity implements TorrentTasksEx
 
 	@Override
 	public void onCreate(Bundle savedInstanceState) {
-		// Set the theme according to the user preference
-		if (SystemSettings_.getInstance_(this).useDarkTheme()) {
-			setTheme(R.style.TransdroidTheme_Dark);
-		}
+		SettingsUtils.applyDayNightTheme(this);
 		super.onCreate(savedInstanceState);
 	}
 

app/src/main/java/org/transdroid/core/gui/TorrentsActivity.java

@@ -68,8 +68,8 @@ import org.transdroid.R;
 import org.transdroid.core.app.search.SearchHelper_;
 import org.transdroid.core.app.settings.ApplicationSettings;
 import org.transdroid.core.app.settings.ServerSetting;
+import org.transdroid.core.app.settings.SettingsUtils;
 import org.transdroid.core.app.settings.SystemSettings;
-import org.transdroid.core.app.settings.SystemSettings_;
 import org.transdroid.core.app.settings.WebsearchSetting;
 import org.transdroid.core.gui.lists.LocalTorrent;
 import org.transdroid.core.gui.lists.SimpleListItem;
@@ -221,10 +221,8 @@ public class TorrentsActivity extends AppCompatActivity implements TorrentTasksE
 
 	@Override
 	public void onCreate(Bundle savedInstanceState) {
-		// Set the theme according to the user preference
-		if (SystemSettings_.getInstance_(this).useDarkTheme()) {
-			setTheme(R.style.TransdroidTheme_Dark);
-		}
+		SettingsUtils.applyDayNightTheme(this);
+
 		// Catch any uncaught exception to log it
 		Thread.setDefaultUncaughtExceptionHandler(new LogUncaughtExceptionHandler(this, Thread.getDefaultUncaughtExceptionHandler()));
 		super.onCreate(savedInstanceState);

app/src/main/java/org/transdroid/core/gui/rss/RssfeedsActivity.java

@@ -39,7 +39,7 @@ import org.androidannotations.annotations.ViewById;
 import org.transdroid.R;
 import org.transdroid.core.app.settings.ApplicationSettings;
 import org.transdroid.core.app.settings.RssfeedSetting;
-import org.transdroid.core.app.settings.SystemSettings_;
+import org.transdroid.core.app.settings.SettingsUtils;
 import org.transdroid.core.gui.TorrentsActivity_;
 import org.transdroid.core.gui.log.Log;
 import org.transdroid.core.gui.navigation.NavigationHelper;
@@ -70,10 +70,7 @@ public class RssfeedsActivity extends AppCompatActivity {
 
 	@Override
 	public void onCreate(Bundle savedInstanceState) {
-		// Set the theme according to the user preference
-		if (SystemSettings_.getInstance_(this).useDarkTheme()) {
-			setTheme(R.style.TransdroidTheme_Dark);
-		}
+		SettingsUtils.applyDayNightTheme(this);
 		super.onCreate(savedInstanceState);
 	}
 

app/src/main/java/org/transdroid/core/gui/rss/RssitemsActivity.java

@@ -30,7 +30,7 @@ import org.androidannotations.annotations.FragmentById;
 import org.androidannotations.annotations.OptionsItem;
 import org.androidannotations.annotations.ViewById;
 import org.transdroid.R;
-import org.transdroid.core.app.settings.SystemSettings_;
+import org.transdroid.core.app.settings.SettingsUtils;
 import org.transdroid.core.gui.TorrentsActivity_;
 import org.transdroid.core.gui.navigation.NavigationHelper;
 import org.transdroid.core.rssparser.Channel;
@@ -52,10 +52,7 @@ public class RssitemsActivity extends AppCompatActivity {
 
 	@Override
 	public void onCreate(Bundle savedInstanceState) {
-		// Set the theme according to the user preference
-		if (SystemSettings_.getInstance_(this).useDarkTheme()) {
-			setTheme(R.style.TransdroidTheme_Dark);
-		}
+		SettingsUtils.applyDayNightTheme(this);
 		super.onCreate(savedInstanceState);
 	}
 

app/src/main/java/org/transdroid/core/gui/search/SearchActivity.java

@@ -48,7 +48,7 @@ import org.transdroid.core.app.search.SearchHelper;
 import org.transdroid.core.app.search.SearchHelper.SearchSortOrder;
 import org.transdroid.core.app.search.SearchSite;
 import org.transdroid.core.app.settings.ApplicationSettings;
-import org.transdroid.core.app.settings.SystemSettings_;
+import org.transdroid.core.app.settings.SettingsUtils;
 import org.transdroid.core.app.settings.WebsearchSetting;
 import org.transdroid.core.gui.TorrentsActivity_;
 import org.transdroid.core.gui.navigation.NavigationHelper;
@@ -88,10 +88,7 @@ public class SearchActivity extends AppCompatActivity {
 
 	@Override
 	public void onCreate(Bundle savedInstanceState) {
-		// Set the theme according to the user preference
-		if (SystemSettings_.getInstance_(this).useDarkTheme()) {
-			setTheme(R.style.TransdroidTheme_Dark);
-		}
+		SettingsUtils.applyDayNightTheme(this);
 		super.onCreate(savedInstanceState);
 	}