79 lines
2.5 KiB
Kotlin
79 lines
2.5 KiB
Kotlin
package org.mosad.teapod.util.adapter
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import android.widget.Filter
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import android.widget.Filterable
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import androidx.recyclerview.widget.RecyclerView
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import com.bumptech.glide.Glide
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import kotlinx.android.synthetic.main.item_media.view.*
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import org.mosad.teapod.R
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import org.mosad.teapod.util.ItemMedia
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import java.util.*
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class MediaItemAdapter(private val media: List<ItemMedia>) : RecyclerView.Adapter<MediaItemAdapter.ViewHolder>(), Filterable {
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var onItemClick: ((Int, Int) -> Unit)? = null
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private val filter = MediaFilter()
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private var filteredMedia = media.map { it.copy() }
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override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MediaItemAdapter.ViewHolder {
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val view = LayoutInflater.from(parent.context).inflate(R.layout.item_media, parent, false)
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return ViewHolder(view)
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}
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override fun onBindViewHolder(holder: MediaItemAdapter.ViewHolder, position: Int) {
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holder.view.apply {
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text_title.text = filteredMedia[position].title
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Glide.with(context).load(filteredMedia[position].posterUrl).into(image_poster)
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}
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}
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override fun getItemCount(): Int {
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return filteredMedia.size
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}
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override fun getFilter(): Filter {
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return filter
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}
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inner class ViewHolder(val view: View) : RecyclerView.ViewHolder(view) {
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init {
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view.setOnClickListener {
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onItemClick?.invoke(filteredMedia[adapterPosition].id, adapterPosition)
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}
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}
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}
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inner class MediaFilter : Filter() {
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override fun performFiltering(constraint: CharSequence?): FilterResults {
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val filterTerm = constraint.toString().toLowerCase(Locale.ROOT)
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val results = FilterResults()
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val filteredList = if (filterTerm.isEmpty()) {
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media
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} else {
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media.filter {
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it.title.toLowerCase(Locale.ROOT).contains(filterTerm)
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}
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}
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results.values = filteredList
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results.count = filteredList.size
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return results
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}
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@Suppress("unchecked_cast")
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/**
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* suppressing unchecked cast is safe, since we only use Media
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*/
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override fun publishResults(constraint: CharSequence?, results: FilterResults?) {
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filteredMedia = results?.values as List<ItemMedia>
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notifyDataSetChanged()
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}
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}
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} |