Fixed One-Handed preference item’s second line should show on/off

status in Settings > System > Gesture > One-Handed.

To override getSummary() method to display on/off status in
One-Handed preference item’s second line.

Bug: 154600203

Test: manual
Change-Id: Ic9a5b74fbca041a08e712d5529b66e672f0c74ab

src/com/android/settings/gestures/OneHandedEnablePreferenceController.java

@@ -18,6 +18,7 @@ package com.android.settings.gestures;
 
 import android.content.Context;
 
+import com.android.settings.R;
 import com.android.settings.core.BasePreferenceController;
 import com.android.settings.core.TogglePreferenceController;
 
@@ -46,4 +47,11 @@ public class OneHandedEnablePreferenceController extends TogglePreferenceControl
     public boolean isChecked() {
         return OneHandedSettingsUtils.isOneHandedModeEnabled(mContext);
     }
+
+    @Override
+    public CharSequence getSummary() {
+        return OneHandedSettingsUtils.isOneHandedModeEnabled(mContext)
+                ? mContext.getText(R.string.switch_on_text)
+                : mContext.getText(R.string.switch_off_text);
+    }
 }