38 lines
1.5 KiB
Kotlin
38 lines
1.5 KiB
Kotlin
/* 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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import androidx.fragment.app.Fragment
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import androidx.fragment.app.FragmentActivity
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import androidx.viewpager2.adapter.FragmentStateAdapter
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import com.keylesspalace.tusky.TabData
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import java.lang.ref.WeakReference
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class MainPagerAdapter(val tabs: List<TabData>, activity: FragmentActivity) : FragmentStateAdapter(activity) {
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private val fragments = MutableList<WeakReference<Fragment>?>(tabs.size) { null }
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override fun createFragment(position: Int): Fragment {
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val tab = tabs[position]
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val fragment = tab.fragment(tab.arguments)
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fragments[position] = WeakReference(fragment)
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return fragment
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}
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override fun getItemCount() = tabs.size
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fun getFragment(position: Int): Fragment? = fragments[position]?.get()
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}
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