SpannableString 을 사용할 경우 ellipsize=end 설정이 적용되지 않는 경우

EllipsizeTextView.kt

class EllipsizeTextView @JvmOverloads constructor(
    context: Context, attrs: AttributeSet? = null
) : AppCompatTextView(context, attrs) {
    override fun onDraw(canvas: Canvas?) {
        // maxLines 를 넘어갈 경우만 처리
        if( lineCount >= maxLines ) {
            val charSequence = text
            val lastCharDown = layout.getLineVisibleEnd(maxLines - 1)
            if( charSequence.length > lastCharDown ) {
                val ssb = SpannableStringBuilder()
                ssb.append(charSequence.subSequence(0, lastCharDown-4)).append("...")
                text = ssb
            }
        }

        super.onDraw(canvas)
    }
}