Added preference categories.

src/main/res/values/strings.xml

@@ -203,6 +203,8 @@ Please report any problems you encounter via Github.</string>
     <!-- Activity title -->
     <string name="settings_title">Settings</string>
 
+    <string name="category_syncthing_android">Syncthing-Android</string>
+
     <!-- Preference title -->
     <string name="always_run_in_background">Always run in background</string>
 
@@ -220,6 +222,8 @@ Please report any problems you encounter via Github.</string>
 
     <string name="advanced_folder_picker_summary">Select any folder on the device for syncing</string>
 
+    <string name="category_syncthing">Syncthing</string>
+
     <string name="syncthing_options">Syncthing Options</string>
 
     <string name="device_name">Device Name</string>
@@ -266,6 +270,8 @@ Please report any problems you encounter via Github.</string>
     <!-- Title for the preference to set STTRACE parameters -->
     <string name="sttrace_title">Debug Options</string>
 
+    <string name="category_about">About</string>
+
     <!-- Settings item that opens issue tracker -->
     <string name="report_issue_title">Report Issue</string>
 

src/main/res/xml/app_settings.xml

@@ -1,6 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
 
+    <PreferenceCategory
+        android:title="@string/category_syncthing_android">
+
         <CheckBoxPreference
             android:key="always_run_in_background"
             android:title="@string/always_run_in_background"
@@ -22,6 +25,11 @@
             android:summary="@string/advanced_folder_picker_summary"
             android:defaultValue="false" />
 
+    </PreferenceCategory>
+
+    <PreferenceCategory
+        android:title="@string/category_syncthing">
+
         <PreferenceScreen
             android:key="syncthing_options"
             android:title="@string/syncthing_options"
@@ -105,6 +113,11 @@
             android:title="@string/sttrace_title"
             android:singleLine="true" />
 
+    </PreferenceCategory>
+
+    <PreferenceCategory
+        android:title="@string/category_about">
+
         <Preference
             android:title="@string/report_issue_title"
             android:summary="@string/report_issue_summary">
@@ -123,4 +136,6 @@
             android:title="@string/app_version_title"
             style="?android:preferenceInformationStyle" />
 
+    </PreferenceCategory>
+
 </PreferenceScreen>