52 lines
1.6 KiB
Kotlin
52 lines
1.6 KiB
Kotlin
/*
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* Copyright 2016 JetBrains s.r.o.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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@file:Suppress("unused")
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package org.jetbrains.anko
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import android.view.Menu
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import android.view.MenuItem
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import java.util.ConcurrentModificationException
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import java.util.NoSuchElementException
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@Deprecated(message = "Use the Android KTX version", replaceWith = ReplaceWith("children", "androidx.core.view.children"))
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fun Menu.itemsSequence(): Sequence<MenuItem> = MenuItemsSequence(this)
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private class MenuItemsSequence(private val menu: Menu) : Sequence<MenuItem> {
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override fun iterator(): Iterator<MenuItem> = MenuItemIterator(menu)
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private class MenuItemIterator(private val menu: Menu) : Iterator<MenuItem> {
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private var index = 0
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private val count = menu.size()
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override fun next(): MenuItem {
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if (!hasNext()) {
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throw NoSuchElementException()
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}
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return menu.getItem(index++)
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}
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override fun hasNext(): Boolean {
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if (count != menu.size()) {
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throw ConcurrentModificationException()
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}
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return index < count
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}
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}
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}
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