Open clicked links of TextView in CustomTabs

CustomTabsURLSpan.kt

class CustomTabsURLSpan(url: String) : URLSpan(url) {

    override fun onClick(widget: View?) {
        // do something with url
    }
}

LinkTransformationMethod.kt

import android.graphics.Rect
import android.text.Spannable
import android.text.Spanned
import android.text.TextUtils
import android.text.method.TransformationMethod
import android.text.style.URLSpan
import android.text.util.Linkify
import android.view.View
import android.widget.TextView

class LinkTransformationMethod : TransformationMethod {
    override fun onFocusChanged(p0: View?, p1: CharSequence?, p2: Boolean, p3: Int, p4: Rect?) {

    }

    override fun getTransformation(source: CharSequence?, textView: View?): CharSequence {
        if (textView is TextView && TextUtils.isEmpty(source) && textView.text !is Spannable) {
            Linkify.addLinks(textView, Linkify.WEB_URLS)
            val text: Spannable = textView.text as Spannable
            text.getSpans(0, textView.length(), URLSpan::class.java).forEach { span: URLSpan ->
                val spanStart = text.getSpanStart(span)
                val spanEnd = text.getSpanEnd(span)
                text.removeSpan(span)
                text.setSpan(CustomTabsURLSpan(span.url), spanStart, spanEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
            }
            return text
        }
        return source!!
    }

}