Storing R.drawable IDs in XML array

user_864067 0
Viewed 93687

I would like to store drawable resources' ID in the form of R.drawable.* inside an array using an XML values file, and then retrieve the array in my activity.

Any ideas of how to achieve this?

android-xml android-drawable android-resources android arrays
5 Answers

In Kotlin, you can do as:- 

 <integer-array name="drawer_icons">
    <item>@drawable/drawer_home</item>
</integer-array>

You will get array of Image from the resource as TypedArray

 val imageArray = resources.obtainTypedArray(R.array.drawer_icons)

get resource ID by the index

imageArray.getResourceId(imageArray.getIndex(0),-1)

OR you can set imageView's resource to the id

imageView.setImageResource(imageArray.getResourceId(imageArray.getIndex(0),-1))

and in last recycle the array

imageArray.recycle()
user_67206480

kotlin way could be this:

fun Int.resDrawableArray(context: Context, index: Int, block: (drawableResId: Int) -> Unit) {
  val array = context.resources.obtainTypedArray(this)
  block(array.getResourceId(index, -1))
  array.recycle()
}

R.array.random_imgs.resDrawableArray(context, 0) {
  mImgView1.setImageResource(it)
}
user_9573700
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