asasmycode.kt

package com.sands.android.view.adapter

import android.content.Context
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.core.content.ContextCompat
import androidx.recyclerview.widget.RecyclerView
import com.sands.android.R
import com.sands.android.dao.entity.SubtitleColorModel
import com.sands.android.databinding.AdapterSubtitleColorBinding

class AdapterSubtitleColor(
    private val context: Context,
    private val colorsList: MutableList<SubtitleColorModel>,
    private val delegate: Interaction

) : RecyclerView.Adapter<AdapterSubtitleColor.SubtitleColorViewHolder>() {

    public interface Interaction {
        public fun onSelectColor(item: SubtitleColorModel)
    }

    public class SubtitleColorViewHolder(v: View) : RecyclerView.ViewHolder(v) {
        val binding = AdapterSubtitleColorBinding.bind(v)
    }

    override fun onCreateViewHolder(viewGroup: ViewGroup, viewType: Int): SubtitleColorViewHolder {
        val adapterView = R.layout.adapter_subtitle_color
        val itemView = LayoutInflater.from(viewGroup.context).inflate(adapterView, viewGroup, false)
        return SubtitleColorViewHolder(itemView)
    }

    override fun getItemCount(): Int {
        return colorsList.size
    }

    override fun onBindViewHolder(holder: SubtitleColorViewHolder, position: Int) {
        val item = colorsList[position]
        holder.binding.root.setCardBackgroundColor(ContextCompat.getColor(context, item.colorCode))
        holder.binding.root.setOnClickListener {
            delegate.onSelectColor(item)
        }
    }
}
package com.sands.android.view.dialog

import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.core.content.ContextCompat
import androidx.fragment.app.DialogFragment
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
import com.sands.android.R
import com.sands.android.dao.entity.SubtitleColorModel
import com.sands.android.databinding.DialogSubtitleSettingsBinding
import com.sands.android.view.adapter.AdapterSubtitleColor

class DialogSubtitleSettings : DialogFragment() {

    private lateinit var delegate: Interaction
    lateinit var colorsList: MutableList<SubtitleColorModel>
    private lateinit var binding: DialogSubtitleSettingsBinding


    public interface Interaction {
        public fun increaseSubtitleSize()
        public fun decreaseSubtitleSize()
        public fun selectSubtitleColor(item: SubtitleColorModel)
    }

    companion object {
        fun newInstance(delegate: Interaction): DialogSubtitleSettings {
            val frag = DialogSubtitleSettings()
            val args = Bundle()
            // frag.delegate = delegate
            frag.arguments = args
            return frag
        }
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        colorsList =
            mutableListOf(
                SubtitleColorModel(
                    colorCode = ContextCompat.getColor(
                        requireContext(),
                        R.color.subtitle_color_1
                    )
                ),
                SubtitleColorModel(
                    colorCode = ContextCompat.getColor(
                        requireContext(),
                        R.color.subtitle_color_2
                    )
                ),
                SubtitleColorModel(
                    colorCode = ContextCompat.getColor(
                        requireContext(),
                        R.color.subtitle_color_3
                    )
                ),
                SubtitleColorModel(
                    colorCode = ContextCompat.getColor(
                        requireContext(),
                        R.color.subtitle_color_4
                    )
                ),
                SubtitleColorModel(
                    colorCode = ContextCompat.getColor(
                        requireContext(),
                        R.color.subtitle_color_5
                    )
                ),
                SubtitleColorModel(
                    colorCode = ContextCompat.getColor(
                        requireContext(),
                        R.color.subtitle_color_6
                    )
                )
            )
    }

    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        val view: View = inflater.inflate(R.layout.dialog_subtitle_settings, container, false)
        binding = DialogSubtitleSettingsBinding.bind(view)
        return view
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)

        binding.rvColors.layoutManager =
            LinearLayoutManager(requireContext(), RecyclerView.HORIZONTAL, false)
        binding.rvColors.adapter = AdapterSubtitleColor(requireContext(), colorsList,
            object : AdapterSubtitleColor.Interaction {
                override fun onSelectColor(subtitleColorModel: SubtitleColorModel) {
                    if (subtitleColorModel.isSelected == false) {
                        colorsList.forEach { it.isSelected = false }
                        subtitleColorModel.isSelected = true
                        binding.rvColors.adapter?.notifyDataSetChanged()
                    }
                }
            })
    }
}