45 lines
1.6 KiB
Kotlin
45 lines
1.6 KiB
Kotlin
/*
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* Twidere - Twitter client for Android
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*
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* Copyright (C) 2012-2017 Mariotaku Lee <mariotaku.lee@gmail.com>
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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 org.mariotaku.twidere.extension
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import androidx.recyclerview.widget.RecyclerView
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import androidx.recyclerview.widget.StaggeredGridLayoutManager
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/**
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* Created by mariotaku on 2017/3/30.
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*/
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val StaggeredGridLayoutManager.reachingStart: Boolean
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get() {
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var visiblePos = findFirstCompletelyVisibleItemPositions(null)
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if (visiblePos.all { it == RecyclerView.NO_POSITION }) {
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visiblePos = findFirstVisibleItemPositions(null)
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}
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return visiblePos.contains(0)
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}
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val StaggeredGridLayoutManager.reachingEnd: Boolean
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get() {
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var visiblePos = findLastCompletelyVisibleItemPositions(null)
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if (visiblePos.all { it == RecyclerView.NO_POSITION }) {
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visiblePos = findLastVisibleItemPositions(null)
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}
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return visiblePos.contains(itemCount - 1)
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} |