Generate linear gradient dynamically

gistfile1.txt

import android.graphics.drawable.GradientDrawable
import java.lang.IllegalArgumentException

/**
 * Created by saravanan on 21/02/19.
 */

object GradientUtils{
    enum class GradientDegree{
        /** draw the gradient from the top-left to the bottom-right  */
        DEGREE_315,
        /** draw the gradient from the top to the bottom  */
        DEGREE_270,
        /** draw the gradient from the top-right to the bottom-left  */
        DEGREE_225,
        /** draw the gradient from the right to the left  */
        DEGREE_180,
        /** draw the gradient from the bottom-right to the top-left  */
        DEGREE_135,
        /** draw the gradient from the bottom to the top  */
        DEGREE_90,
        /** draw the gradient from the bottom-left to the top-right  */
        DEGREE_45,
        /** draw the gradient from the left to the right  */
        DEGREE_0,
    }
    fun getGradientColor(colors: IntArray,orientation: GradientDegree=GradientDegree.DEGREE_270):GradientDrawable{
     return getGradientColor(cornerRadius = 0,colors = colors,orientation = orientation)
    }
    fun getGradientColor(cornerRadius:Int, colors :IntArray,orientation:GradientDegree):GradientDrawable{
        if (colors.size>1){
            val orientationTemp:GradientDrawable.Orientation=when(orientation){
                GradientDegree.DEGREE_315->{ GradientDrawable.Orientation.TL_BR}
                GradientDegree.DEGREE_270->{ GradientDrawable.Orientation.TOP_BOTTOM}
                GradientDegree.DEGREE_225->{ GradientDrawable.Orientation.TR_BL}
                GradientDegree.DEGREE_180->{ GradientDrawable.Orientation.RIGHT_LEFT}
                GradientDegree.DEGREE_135->{ GradientDrawable.Orientation.BR_TL}
                GradientDegree.DEGREE_90->{ GradientDrawable.Orientation.BOTTOM_TOP}
                GradientDegree.DEGREE_45->{ GradientDrawable.Orientation.BL_TR}
                GradientDegree.DEGREE_0->{ GradientDrawable.Orientation.LEFT_RIGHT}
            }

            val gradientDrawable=GradientDrawable(orientationTemp, colors)
            gradientDrawable.cornerRadius=cornerRadius.toFloat()
            return gradientDrawable
        }
      else{
            throw IllegalArgumentException("Needs 2 or more number of color for create gradient color")
        }
    }

}