52 lines
2.1 KiB
Kotlin
52 lines
2.1 KiB
Kotlin
/*
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* Pupil, Hitomi.la viewer for Android
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* Copyright (C) 2020 tom5079
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package xyz.quaver.pupil.adapters
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import android.view.ViewGroup
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import androidx.recyclerview.widget.GridLayoutManager
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import androidx.recyclerview.widget.RecyclerView
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import kotlin.math.min
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class ThumbnailPageAdapter(private val thumbnails: List<String>) : RecyclerView.Adapter<ThumbnailPageAdapter.ViewHolder>() {
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class ViewHolder(val view: RecyclerView) : RecyclerView.ViewHolder(view)
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override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
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return ViewHolder(RecyclerView(parent.context).apply {
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val layoutManager = GridLayoutManager(parent.context, 3)
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val adapter = ThumbnailAdapter(listOf())
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this.layoutManager = layoutManager
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this.adapter = adapter
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layoutParams = ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)
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})
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}
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override fun onBindViewHolder(holder: ViewHolder, position: Int) {
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(holder.view.adapter as ThumbnailAdapter).apply {
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thumbnails = this@ThumbnailPageAdapter.thumbnails.slice(9*position until min(9*position+9, this@ThumbnailPageAdapter.thumbnails.size))
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notifyDataSetChanged()
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(holder.view.layoutManager as GridLayoutManager).scrollToPosition(8)
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}
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}
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override fun getItemCount() = if (thumbnails.isEmpty()) 0 else thumbnails.size/9 + if (thumbnails.size%9 != 0) 1 else 0
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} |