Fix FC when access to boolean value

I/Xposed  (18515): java.lang.ClassCastException: java.lang.String cannot be cast
 to java.lang.Boolean
I/Xposed  (18515):      at de.robv.android.xposed.XSharedPreferences.getBoolean(
XSharedPreferences.java:199)

<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
<map>
    <boolean name="hide_unit" value="true" />
    <string name="force_unit">2</string>
</map>