[SOLVED] How do I populate a number picker from a string-array (in the strings.xml)

How do I populate a number picker from a string-array (in the strings.xml)

I have a number picker and I can populate it with no problem from a regular array; however when I try to localize my app and place the array in the strings.xml file, that's when the frustration starts.

This is the strings.xml (partially)

<!--Set up arrays for the Number Pickers-->
    <string name="pieces">Pieces</string>
    <string name="kgs">Kgs</string>
    <string name="lbs">Lbs</string>
    <string name="oz">Oz</string>
    <string name="gal">Gal</string>
    <string name="liters">Liters</string>
    <string name="pints">Pints</string>
    <string name="quarts">Quarts</string>
    <string name="fl_oz">Fl Oz</string>

    <string-array name="all_units">
        <item>@string/pieces</item>
        <item>@string/kgs</item>
        <item>@string/lbs</item>
        <item>@string/oz</item>
        <item>@string/gal</item>
        <item>@string/liters</item>
        <item>@string/pints</item>
        <item>@string/quarts</item>
        <item>@string/fl_oz</item>
    </string-array>

Then in the MainActivity.kt, this is what I have:

val allUnits = arrayOf("Pieces","Kgs", "Lbs", "Oz", "Gal", "liters", "pints", "Quarts", "Fl oz")
npUnitsA.minValue = 0
npUnitsA.maxValue = allUnits.size -1

npUnitsA.displayedValues = allUnits

this works fine, but if I change that last line to:

npUnitsA.displayedValues = R.array.all_units

I get an error message: Type mismatch. Required:Array<(out) String!>! Found:Int

Needless to say I'm very green at Android. Any help will be greatly appreciated.

Solution

R.java contains identifiers in int so its expected to give this error. What you can do here is

 getResources().getStringArray(R.array.all_units)

to get the resource array