1 package com.bumptech.glide.load.engine.bitmap_recycle; 2 3 import com.bumptech.glide.util.Util; 4 5 import java.util.Queue; 6 7 abstract class BaseKeyPool<T extends Poolable> { 8 private static final int MAX_SIZE = 20; 9 private final Queue<T> keyPool = Util.createQueue(MAX_SIZE); 10 11 protected T get() { 12 T result = keyPool.poll(); 13 if (result == null) { 14 result = create(); 15 } 16 return result; 17 } 18 19 public void offer(T key) { 20 if (keyPool.size() < MAX_SIZE) { 21 keyPool.offer(key); 22 } 23 } 24 25 protected abstract T create(); 26 } 27
