Twidere-App-Android-Twitter.../twidere/src/main/java/org/mariotaku/twidere/util/LongSparseArrayUtils.java

57 lines
1.7 KiB
Java

/*
* Twidere - Twitter client for Android
*
* Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.mariotaku.twidere.util;
import android.support.v4.util.LongSparseArray;
public class LongSparseArrayUtils {
private LongSparseArrayUtils() {
}
/**
* @return A copy of all keys contained in the sparse array.
*/
public static <E> long[] getKeys(final LongSparseArray<E> array) {
final int length = array.size();
final long[] result = new long[length];
for (int i = 0, j = length; i < j; i++) {
result[i] = array.keyAt(i);
}
return result;
}
public static <E> boolean hasKey(final LongSparseArray<E> array, final long key) {
return array.indexOfKey(key) >= 0;
}
/**
* Sets all supplied keys to the given unique value.
*
* @param keys Keys to set
* @param uniqueValue Value to set all supplied keys to
*/
public static <E> void setValues(final LongSparseArray<E> array, final long[] keys, final E uniqueValue) {
final int length = keys.length;
for (long key : keys) {
array.put(key, uniqueValue);
}
}
}