2019-02-13 05:22:37 +11:00
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/* Copyright 2017 Andrew Dawson
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*
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* This file is a part of Tusky.
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* 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 along with Tusky; if not,
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* see <http://www.gnu.org/licenses>. */
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package com.keylesspalace.tusky.pager
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2019-04-08 23:40:16 +10:00
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import android.util.SparseArray
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import android.view.ViewGroup
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2019-02-13 05:22:37 +11:00
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import androidx.fragment.app.Fragment
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import androidx.fragment.app.FragmentManager
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import androidx.fragment.app.FragmentPagerAdapter
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import androidx.viewpager.widget.PagerAdapter
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import com.keylesspalace.tusky.TabData
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class MainPagerAdapter(val tabs: List<TabData>, manager: FragmentManager) : FragmentPagerAdapter(manager) {
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2019-04-08 23:40:16 +10:00
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private val fragments = SparseArray<Fragment>(tabs.size)
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2019-02-13 05:22:37 +11:00
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override fun getItem(position: Int): Fragment {
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2019-03-24 18:59:55 +11:00
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val tab = tabs[position]
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return tab.fragment(tab.arguments)
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2019-02-13 05:22:37 +11:00
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}
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override fun getCount(): Int {
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return tabs.size
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}
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override fun getPageTitle(position: Int): CharSequence? {
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return null
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}
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override fun getItemId(position: Int): Long {
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2019-03-24 18:59:55 +11:00
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return tabs[position].hashCode() + position.toLong()
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2019-02-13 05:22:37 +11:00
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}
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override fun getItemPosition(item: Any): Int {
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return PagerAdapter.POSITION_NONE
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}
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2019-04-08 23:40:16 +10:00
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override fun instantiateItem(container: ViewGroup, position: Int): Any {
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val fragment = super.instantiateItem(container, position)
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if (fragment is Fragment)
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fragments.put(position, fragment)
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return fragment
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}
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override fun destroyItem(container: ViewGroup, position: Int, `object`: Any) {
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super.destroyItem(container, position, `object`)
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fragments.remove(position)
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}
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fun getFragment(position: Int): Fragment? = fragments[position]
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2019-02-13 05:22:37 +11:00
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}
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