48 lines
1.5 KiB
Kotlin
48 lines
1.5 KiB
Kotlin
package xyz.quaver.pupil.adapters
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import android.graphics.BitmapFactory
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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.ImageView
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import androidx.recyclerview.widget.RecyclerView
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import kotlinx.coroutines.CoroutineScope
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import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.launch
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import xyz.quaver.pupil.R
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class ReaderAdapter(private val images: List<String>) : RecyclerView.Adapter<ReaderAdapter.ViewHolder>() {
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class ViewHolder(val view: View) : RecyclerView.ViewHolder(view)
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override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
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LayoutInflater.from(parent.context).inflate(
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R.layout.item_reader, parent, false
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).let {
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return ViewHolder(it)
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}
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}
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override fun onBindViewHolder(holder: ViewHolder, position: Int) {
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with(holder.view as ImageView) {
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CoroutineScope(Dispatchers.Default).launch {
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val options = BitmapFactory.Options()
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options.inJustDecodeBounds = true
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BitmapFactory.decodeFile(images[position], options)
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options.inSampleSize = options.outWidth /
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context.resources.displayMetrics.widthPixels
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options.inJustDecodeBounds = false
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val image = BitmapFactory.decodeFile(images[position], options)
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post { setImageBitmap(image) }
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}
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}
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}
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override fun getItemCount() = images.size
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} |