I created a custom Preference RangeBarPreference. I must have initially persisted the preference value as an Integer as I'm getting this error message:
java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String
when trying to perform persistString("text").
persistString() works fine when I change my preference key from age_range to something different:
<app.meeq.RangeBarPreference
android:key="minmax_age"
android:title="Age Range"
android:layout="@layout/preference_rangebar"/>
but I would like to use the initial key age_range, even though it's saved as an Int/Integer.
How can I delete the age_range Preference value so I can use persistString() on it?