Could android store drawable ids like an integer-array?

Question

I want a drawable id array of integer values which I can store like an integer-array in res/values/XXX.xml by using integer-array tag. Below is integer-array declared in strings.xml

<integer-array name="icons">
     <item>1</item>
     <item>2</item>
     <item>3</item>
     <item>4</item>
</integer-array>

But I want to store drawable image ids like @drawable/someImage as an integer array in xml.

OR Is there any alternatives to store drawable integer ids as an integer array in xml.

I am not sure this is exactly you are looking for but try this stackoverflow.com/questions/6945678/… — Raghavendra
– Raghavendra, Commented Apr 23, 2015 at 9:38

SilentKnight · Accepted Answer · 2016-05-10 03:12:22Z

22

I think TypedArray is what you are looking for. I have samples using it. If you are interested, take a look at codes below:

First, integer-array in res/values/arrays.xml:

<integer-array name="frag_home_ids">
    <item>@drawable/frag_home_credit_return_money</item>
    <item>@drawable/frag_home_transfer</item>
    <item>@drawable/frag_home_balance</item>
    <item>@drawable/frag_home_charge</item>
    <item>@drawable/frag_home_finance_cdd</item>
    <item>@drawable/frag_home_finance_ybjr</item>
    <item>@drawable/frag_home_more</item>
</integer-array>

Second, get resource integer values programmatically:

TypedArray tArray = getResources().obtainTypedArray(
            R.array.frag_home_ids);
int count = tArray.length();
int[] ids = new int[count];
for (int i = 0; i < ids.length; i++) {
    ids[i] = tArray.getResourceId(i, 0);
}
//Recycles the TypedArray, to be re-used by a later caller. 
//After calling this function you must not ever touch the typed array again.
tArray.recycle();

Third, call the integer values like this:

holder.iv.setImageResource(ids[position]);

Of course, you can get integer values of string, color, integer, layout, menu...in this way.

I hope these codes will inspire you.

edited May 10, 2016 at 3:12

answered Apr 23, 2015 at 9:52

SilentKnight

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1 Comment

jmart Over a year ago

Don't forget to recycle the typed array at the end of the second step by calling tArray.recycle(), to avoid memory problems.

aga · Accepted Answer · 2015-04-23 09:38:24Z

4

Take a look at documentation, specifically More Resource Types article. Quote:

Typed Array
A TypedArray defined in XML. You can use this to create an array of other resources, such as drawables.

EXAMPLE:
XML file saved at res/values/arrays.xml:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <array name="icons">
        <item>@drawable/home</item>
        <item>@drawable/settings</item>
        <item>@drawable/logout</item>
    </array>
    <array name="colors">
        <item>#FFFF0000</item>
        <item>#FF00FF00</item>
        <item>#FF0000FF</item>
    </array>
</resources>

answered Apr 23, 2015 at 9:38

aga

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Comments

Knossos · Accepted Answer · 2015-04-23 09:30:43Z

1

You can use a string array.

Extract:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string-array name="media_names">
        <item>Big Buck Bunny</item>
        <item>Elephants Dream</item>
        <item>Sintel</item>
        <item>Tears of Steel</item>
    </string-array>

    <string-array name="media_uris">
        <item>http://archive.org/download/BigBuckBunny_328/BigBuckBunny_512kb.mp4</item>
        <item>http://archive.org/download/ElephantsDream_277/elephant_dreams_640_512kb.mp4</item>
        <item>http://archive.org/download/Sintel/sintel-2048-stereo_512kb.mp4</item>
        <item>http://archive.org/download/Tears-of-Steel/tears_of_steel_720p.mp4</item>
    </string-array>
</resources>

What is it that you want to achieve, I cannot 100% tell you if this is the best choice for you.

answered Apr 23, 2015 at 9:30

Knossos

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2 Comments

Pankaj Over a year ago

@Knossos-i want drawable images to store as an array in xml file so i can use them directly in my adapter.

Knossos Over a year ago

Then you want to take a look at @aga's answer. That will do what you want.

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