Update watch background timeout description

Clover/app/src/main/java/org/floens/chan/ui/controller/WatchSettingsController.java

@@ -110,7 +110,12 @@ public class WatchSettingsController extends SettingsController implements Compo
             String name = context.getResources().getQuantityString(R.plurals.minutes, timeouts[i], timeouts[i]);
             timeoutsItems[i] = new ListSettingView.Item(name, String.valueOf(timeouts[i] * 60));
         }
-        backgroundTimeout = settings.add(new ListSettingView(this, ChanSettings.watchBackgroundTimeout, R.string.setting_watch_background_timeout, timeoutsItems));
+        backgroundTimeout = settings.add(new ListSettingView(this, ChanSettings.watchBackgroundTimeout, R.string.setting_watch_background_timeout, timeoutsItems) {
+            @Override
+            public String getBottomDescription() {
+                return getString(R.string.setting_watch_background_timeout_description) + "\n\n" + items.get(selected).name;
+            }
+        });
 
         notifyMode = settings.add(new ListSettingView(this, ChanSettings.watchNotifyMode, R.string.setting_watch_notify_mode,
                 context.getResources().getStringArray(R.array.setting_watch_notify_modes), new String[]{"all", "quotes"}));

Clover/app/src/main/java/org/floens/chan/ui/settings/ListSettingView.java

@@ -34,9 +34,9 @@ import static org.floens.chan.utils.AndroidUtils.dp;
 public class ListSettingView extends SettingView implements FloatingMenu.FloatingMenuCallback, View.OnClickListener {
     public final List<Item> items;
 
-    private Setting<String> setting;
+    public int selected;
 
-    private int selected;
+    private Setting<String> setting;
 
     public ListSettingView(SettingsController settingsController, Setting<String> setting, int name, String[] itemNames, String[] keys) {
         this(settingsController, setting, getString(name), itemNames, keys);

Clover/app/src/main/res/values/strings.xml

@@ -399,7 +399,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     <string name="setting_watch_summary_disabled">Off</string>
     <string name="setting_watch_enable_background">Enable in the background</string>
     <string name="setting_watch_enable_background_description">Watch pins when Clover is in the background</string>
-    <string name="setting_watch_background_timeout">Time between loads in background</string>
+    <string name="setting_watch_background_timeout">Minimum time between loads in background</string>
+    <string name="setting_watch_background_timeout_description">Minimum time between loads, with exponential backoff</string>
     <string name="setting_watch_notify_mode">Notify about</string>
     <string-array name="setting_watch_notify_modes">
         <item>All posts</item>