#kkt

Adapter.kt

 override fun onBindViewHolder(holder: ViewHolder, position: Int) {
        val dummy = dummyes[position]
        with(holder.itemView) {
            title.text = dummy.title
            downloadIcon.isVisible = !dummy.file.exists()
            documentTypeIcon.isVisible = dummy.file.exists()
            progressBarDocument.isVisible = dummy.isDownloading
            textProgress.isVisible = dummy.isDownloading
            setOnClickListener {
                listener(dummy)
            }
        }
    }

    override fun onBindViewHolder(holder: ViewHolder, position: Int, payloads: MutableList<Any>) {
        super.onBindViewHolder(holder, position, payloads)
        if (payloads.firstOrNull() != null) {
            with(holder.itemView) {
                (payloads.first() as Bundle).getInt("progress").also {
                    progressBarDocument.progress = it
                    progressBarDocument.isVisible = it < 99
                    textProgress.isVisible = it < 99
                    textProgress.text = "$it %"
                }
            }
        }
    }

    fun setDownloading(dummy: DummyData, isDownloading: Boolean) {
        getDummy(dummy)?.isDownloading = isDownloading
        notifyItemChanged(dummyes.indexOf(dummy))
    }

    fun setProgress(dummy: DummyData, progress: Int) {
        getDummy(dummy)?.progress = progress
        notifyItemChanged(dummyes.indexOf(dummy), Bundle().apply { putInt("progress", progress) })
    }

    private fun getDummy(dummy: DummyData) = dummyes.find { dummy.id == it.id }