/*
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* Copyright (C) 2015 The Android Open Source Project
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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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package com.android.launcher3.util;
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import android.util.SparseArray;
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import java.util.Iterator;
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/**
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* Extension of {@link SparseArray} with some utility methods.
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*/
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public class IntSparseArrayMap<E> extends SparseArray<E> implements Iterable<E> {
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public boolean containsKey(int key) {
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return indexOfKey(key) >= 0;
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}
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public boolean isEmpty() {
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return size() <= 0;
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}
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@Override
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public IntSparseArrayMap<E> clone() {
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return (IntSparseArrayMap<E>) super.clone();
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}
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@Override
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public Iterator<E> iterator() {
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return new ValueIterator();
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}
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@Thunk class ValueIterator implements Iterator<E> {
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private int mNextIndex = 0;
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@Override
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public boolean hasNext() {
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return mNextIndex < size();
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}
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@Override
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public E next() {
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return valueAt(mNextIndex ++);
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}
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@Override
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public void remove() {
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throw new UnsupportedOperationException();
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}
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}
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}
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