WeatherApp #10: RecyclerView Adapter – Part 2

WeatherAdapter.kt

import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.recyclerview.widget.DiffUtil
import androidx.recyclerview.widget.ListAdapter
import androidx.recyclerview.widget.RecyclerView
import com.meter_alc_rgb.weatherappcursey.R
import com.meter_alc_rgb.weatherappcursey.databinding.ListItemBinding

class WeatherAdapter : ListAdapter<WeatherModel, WeatherAdapter.Holder>(Comparator()) {

    class Holder(view: View) : RecyclerView.ViewHolder(view){
        val binding = ListItemBinding.bind(view)

        fun bind(item: WeatherModel) = with(binding){
            tvDate.text = item.time
            tvCondition.text = item.condition
            tvTemp.text = item.currentTemp
        }
    }

    class Comparator : DiffUtil.ItemCallback<WeatherModel>(){
        override fun areItemsTheSame(oldItem: WeatherModel, newItem: WeatherModel): Boolean {
            return oldItem == newItem
        }

        override fun areContentsTheSame(oldItem: WeatherModel, newItem: WeatherModel): Boolean {
            return oldItem == newItem
        }

    }

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): Holder {
        val view = LayoutInflater.from(parent.context).inflate(R.layout.list_item, parent, false)
        return Holder(view)
    }

    override fun onBindViewHolder(holder: Holder, position: Int) {
         holder.bind(getItem(position))
    }
}

HouraFragment.kt

HouraFragment.kt

import android.os.Bundle
import androidx.fragment.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.recyclerview.widget.LinearLayoutManager
import com.meter_alc_rgb.weatherappcursey.R
import com.meter_alc_rgb.weatherappcursey.adapters.WeatherAdapter
import com.meter_alc_rgb.weatherappcursey.adapters.WeatherModel
import com.meter_alc_rgb.weatherappcursey.databinding.FragmentHoursBinding

class HoursFragment : Fragment() {
    private lateinit var binding: FragmentHoursBinding
    private lateinit var adapter: WeatherAdapter

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View {
        binding = FragmentHoursBinding.inflate(inflater, container, false)
        return binding.root
    }

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

    private fun initRcView() = with(binding){
        rcView.layoutManager = LinearLayoutManager(activity)
        adapter = WeatherAdapter()
        rcView.adapter = adapter
        val list = listOf(
            WeatherModel(
                "","12:00",
                "Sunny","25ºC",
                "", "", "",""),
            WeatherModel(
                "","13:00",
                "Sunny","25ºC",
                "", "", "",""),
            WeatherModel(
                "","14:00",
                "Sunny","35ºC",
                "", "", "","")
        )
        adapter.submitList(list)
    }

    companion object {
        @JvmStatic
        fun newInstance() = HoursFragment()
    }
}

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