4d5939fc0a
bug: 9889653 Change-Id: I2630c56548f9146ade85b17f891932dae2082a85
84 lines
2.2 KiB
Java
84 lines
2.2 KiB
Java
/*
|
|
* Copyright (C) 2013 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package android.util;
|
|
|
|
import com.android.inputmethod.latin.utils.CollectionUtils;
|
|
|
|
import java.util.ArrayList;
|
|
import java.util.Collections;
|
|
|
|
public class SparseArray<E> {
|
|
private final ArrayList<Integer> mKeys;
|
|
private final ArrayList<E> mValues;
|
|
|
|
public SparseArray() {
|
|
this(10);
|
|
}
|
|
|
|
public SparseArray(final int initialCapacity) {
|
|
mKeys = CollectionUtils.newArrayList(initialCapacity);
|
|
mValues = CollectionUtils.newArrayList(initialCapacity);
|
|
}
|
|
|
|
public int size() {
|
|
return mKeys.size();
|
|
}
|
|
|
|
public void clear() {
|
|
mKeys.clear();
|
|
mValues.clear();
|
|
}
|
|
|
|
public void put(final int key, final E value) {
|
|
final int index = Collections.binarySearch(mKeys, key);
|
|
if (index >= 0) {
|
|
mValues.set(index, value);
|
|
return;
|
|
}
|
|
final int insertIndex = ~index;
|
|
mKeys.add(insertIndex, key);
|
|
mValues.add(insertIndex, value);
|
|
}
|
|
|
|
public E get(final int key) {
|
|
return get(key, null);
|
|
}
|
|
|
|
public E get(final int key, final E valueIfKeyNotFound) {
|
|
final int index = Collections.binarySearch(mKeys, key);
|
|
if (index >= 0) {
|
|
return mValues.get(index);
|
|
}
|
|
return valueIfKeyNotFound;
|
|
}
|
|
|
|
public int indexOfKey(final int key) {
|
|
return mKeys.indexOf(key);
|
|
}
|
|
|
|
public int indexOfValue(final E value) {
|
|
return mValues.indexOf(value);
|
|
}
|
|
|
|
public int keyAt(final int index) {
|
|
return mKeys.get(index);
|
|
}
|
|
|
|
public E valueAt(final int index) {
|
|
return mValues.get(index);
|
|
}
|
|
}
|