65 lines
1.7 KiB
Kotlin
65 lines
1.7 KiB
Kotlin
package jp.juggler.subwaytooter
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import android.support.v4.view.PagerAdapter
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import android.util.SparseArray
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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 java.util.ArrayList
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internal class ColumnPagerAdapter(private val activity : ActMain) : PagerAdapter() {
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private val inflater : LayoutInflater
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private val column_list : ArrayList<Column>
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private val holder_list = SparseArray<ColumnViewHolder>()
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init {
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this.inflater = activity.layoutInflater
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this.column_list = activity.app_state.column_list
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}
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override fun getCount() : Int {
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return column_list.size
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}
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fun getColumn(idx : Int) : Column? {
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return if(idx >= 0 && idx < column_list.size) column_list[idx] else null
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}
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fun getColumnViewHolder(idx : Int) : ColumnViewHolder? {
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return holder_list.get(idx)
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}
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override fun getPageTitle(page_idx : Int) : CharSequence? {
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return getColumn(page_idx) ?.getColumnName(false)
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}
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override fun isViewFromObject(view : View, obj : Any) : Boolean {
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return view === obj
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}
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override fun instantiateItem(container : ViewGroup, page_idx : Int) : Any {
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val root = inflater.inflate(R.layout.page_column, container, false)
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container.addView(root, 0)
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val column = column_list[page_idx]
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val holder = ColumnViewHolder(activity, root)
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//
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holder_list.put(page_idx, holder)
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//
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holder.onPageCreate(column, page_idx, column_list.size)
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return root
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}
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override fun destroyItem(container : ViewGroup, page_idx : Int, obj : Any) {
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if( obj is View ){
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container.removeView(obj)
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}
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//
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val holder = holder_list.get(page_idx)
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holder_list.remove(page_idx)
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holder?.onPageDestroy(page_idx)
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}
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} |