String-array in Kotlin

Question

Begin new project in Kotlin and missing those.

Try to get string-array recources but can't.

In strings.xml I palced next items.

<string-array name="themeList">
    <item>white</item>
    <item>sepia</item>
    <item>black</item>
    <item>pink</item>
</string-array>

In code I try next:

val res: Resources = resources
val appThemeList = arrayOf(res.getStringArray(R.array.themeList))

for (value in appThemeList) {
    Log.i ("value", value.toString())
}

But in logCat i see:

I/value: [Ljava.lang.String;@40145f2

And I don'r understand, what I do incorrectly.

I used this concept as follows successfully: private var list= mutableListOf<String>("") list = resources.getStringArray(R.array.string-array-list-name).toList() as MutableList<String> — Balry
– Balry, Commented Apr 12, 2023 at 13:42

Andrey Danilov · Accepted Answer · 2018-02-20 09:55:33Z

27

replace

val appThemeList = arrayOf(res.getStringArray(R.array.themeList))

to

val appThemeList = res.getStringArray(R.array.themeList)

In other case you got array

 val myArray = res.getStringArray(R.array.themeList) //already array

And added to another array

 arrayOf(myArray) // array of arrays

answered Feb 20, 2018 at 9:55

Andrey Danilov

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Comments

Subhanshuja · Accepted Answer · 2020-12-30 05:26:11Z

9

In android is depend on context when outside Activity like this

val themes = context.resources.getStringArray(R.array.themeList)

or without context is direct to resource when inside Activity

val themes = resources.getStringArray(R.array.themeList)

edited Dec 30, 2020 at 5:26

answered Dec 24, 2019 at 1:05

Subhanshuja

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Comments

duggu · Accepted Answer · 2018-02-20 10:07:18Z

3

As we know res.getStringArray return arraylist so you do not need to write arrayOf on your code.

Simple way to achieve your goal is:-

val list = res.getStringArray(R.array.list);

We can use arrayOf when we have to define our array or we have already arraylist like below :-

val myArray = arrayOf(4, 5, 7, 3);

edited Feb 20, 2018 at 10:07

answered Feb 20, 2018 at 10:02

duggu

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MSD · Accepted Answer · 2018-02-20 10:21:38Z

2

Try this,

 val Lines = Arrays.asList(resources.getStringArray(R.array.list))

answered Feb 20, 2018 at 10:21

MSD

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MSilva · Accepted Answer · 2018-03-31 06:30:17Z

0

In kotlin use :

var yourVar = resources.getStringArray(R.array.your_string_array)

answered Mar 31, 2018 at 6:30

MSilva

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Abdul Mateen · Accepted Answer · 2019-12-07 06:36:20Z

0

In kotlin, also need to use context like below

var arry = context.resources.getStringArray(R.array.your_string_array)

answered Dec 7, 2019 at 6:36

Abdul Mateen

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TrompetenTom · Accepted Answer · 2021-10-26 13:09:17Z

0

With this line of code you get exactly the element in the place of index.

val the_string = resources.getStringArray(R.array.YOUR_STRING_ARRAY)[index].toString()

This will be your res/values/strings.xml

<string-array name="YOUR_STRING_ARRAY">
    <item>kJ</item>
    <item>kWh</item>
    <item>Btu</item>
    <item>kcal</item>
</string-array>

As an example if the index is 1 then the return value is "kWh"

answered Oct 26, 2021 at 13:09

TrompetenTom

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Tomerikoo · Accepted Answer · 2021-11-09 22:59:12Z

0

If you want use the path of resources in RecyclerView.Adapter Class you must put into function onBindViewHolder

val myItem = holder.itemView.resources.getStringArray(R.array.myItem_string_array)

edited Nov 9, 2021 at 22:59

Tomerikoo

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answered Nov 9, 2021 at 20:57

mabdelouahad

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