1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.graphics; 18 19 import android.annotation.UnsupportedAppUsage; 20 import com.android.internal.util.ArrayUtils; 21 22 /** 23 * @hide 24 */ 25 public class TemporaryBuffer { 26 @UnsupportedAppUsage obtain(int len)27 public static char[] obtain(int len) { 28 char[] buf; 29 30 synchronized (TemporaryBuffer.class) { 31 buf = sTemp; 32 sTemp = null; 33 } 34 35 if (buf == null || buf.length < len) { 36 buf = ArrayUtils.newUnpaddedCharArray(len); 37 } 38 39 return buf; 40 } 41 42 @UnsupportedAppUsage recycle(char[] temp)43 public static void recycle(char[] temp) { 44 if (temp.length > 1000) return; 45 46 synchronized (TemporaryBuffer.class) { 47 sTemp = temp; 48 } 49 } 50 51 private static char[] sTemp = null; 52 } 53