kotlinCompanion.kt

package com.teatime.americano.decorators

....

/**
 * Created by myeongin on 14. 12. 13..
 */
class GalleryDecoration(private val context: Context, orientation: Int) : RecyclerView.ItemDecoration() {

    ....

    companion object {
        private val ATTRS = intArrayOf(android.R.attr.listDivider)

        val HORIZONTAL_LIST = LinearLayoutManager.HORIZONTAL

        val VERTICAL_LIST = LinearLayoutManager.VERTICAL
    }
}