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PlanetListActivity-1.kt
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PlanetListActivity-1.kt
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package org.eu5.learn_pisio.solarsystem
import android.content.Intent
import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import android.support.v7.widget.RecyclerView
import android.support.v7.widget.Toolbar
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.ImageView
import android.widget.TextView
import com.example.solarsystem.ARG_ITEM_ID
import org.eu5.learn_pisio.solarsystem.model.Planet
import org.eu5.learn_pisio.solarsystem.model.PlanetsDataProvider
class PlanetListActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_planet_list)
val toolbar = findViewById<Toolbar>(R.id.toolbar)
setSupportActionBar(toolbar)
val recyclerView = findViewById<RecyclerView>(R.id.planet_list)
setupRecyclerView(recyclerView)
}
private fun setupRecyclerView(recyclerView: RecyclerView) {
recyclerView.adapter = PlanetsAdapter(PlanetsDataProvider.ITEMS)
}
inner class PlanetsAdapter internal constructor(
private val values: List<Planet>
) : RecyclerView.Adapter<PlanetsAdapter.ViewHolder>() {
private val clickListener = View.OnClickListener { view ->
val item = view.tag as Planet
val context = view.context
val intent = Intent(context, PlanetDetailActivity::class.java)
intent.putExtra(ARG_ITEM_ID, item.id)
context.startActivity(intent)
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
val view = LayoutInflater.from(parent.context)
.inflate(R.layout.planet_list_content, parent, false)
return ViewHolder(view)
}
override fun onBindViewHolder(holder: ViewHolder, position: Int) {
val planet = values[position]
holder.nameText.text = planet.name
holder.imageView.setImageResource(planet.imageResourceId)
holder.itemView.tag = planet
holder.itemView.setOnClickListener(clickListener)
}
override fun getItemCount(): Int = values.size
inner class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
val nameText: TextView = view.findViewById(R.id.planet_name)
val imageView: ImageView = view.findViewById(R.id.planet_image)
}
}
}