Add gesture input enable settings

Bug: 6845325
Change-Id: I3165465b0b280e32a9288da16abb75baa67288dc
diff --git a/java/res/values/strings.xml b/java/res/values/strings.xml
index cf7c1c5..98c8918 100644
--- a/java/res/values/strings.xml
+++ b/java/res/values/strings.xml
@@ -111,6 +111,11 @@
     <!-- Description for "next word suggestion" option. This displays suggestions even when there is no input, based on the previous word. -->
     <string name="bigram_prediction_summary">Based on previous word</string>
 
+    <!-- Option to enable gesture input. The user can input a word by tracing the letters of a word without releasing the finger from the screen. [CHAR LIMIT=20]-->
+    <string name="gesture_input">Gesture input</string>
+    <!-- Description for "gesture_input" option. The user can input a word by tracing the letters of a word without releasing the finger from the screen. [CHAR LIMIT=65]-->
+    <string name="gesture_input_summary">Input a word by tracing the letters of a word</string>
+
     <!-- Indicates that a word has been added to the dictionary -->
     <string name="added_word"><xliff:g id="word">%s</xliff:g> : Saved</string>
 
diff --git a/java/res/xml/prefs.xml b/java/res/xml/prefs.xml
index bf88058..4f11cb7 100644
--- a/java/res/xml/prefs.xml
+++ b/java/res/xml/prefs.xml
@@ -87,6 +87,12 @@
             android:persistent="true"
             android:defaultValue="true" />
         <CheckBoxPreference
+            android:key="gesture_input"
+            android:title="@string/gesture_input"
+            android:summary="@string/gesture_input_summary"
+            android:persistent="true"
+            android:defaultValue="true" />
+        <CheckBoxPreference
             android:key="usability_study_mode"
             android:title="@string/prefs_usability_study_mode"
             android:persistent="true"