58 lines
1.7 KiB
Java
58 lines
1.7 KiB
Java
/*
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* Copyright 2018 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.pump.util;
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import android.graphics.Bitmap;
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import android.net.Uri;
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import androidx.annotation.AnyThread;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.collection.LruCache;
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import androidx.core.graphics.BitmapCompat;
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@AnyThread
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class BitmapCache {
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private static final int CACHE_SIZE =
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(int) Math.min(Runtime.getRuntime().maxMemory() / 8, Integer.MAX_VALUE / 4);
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private final MemoryCache mMemoryCache = new MemoryCache(CACHE_SIZE);
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void put(@NonNull Uri key, @NonNull Bitmap bitmap) {
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mMemoryCache.put(key, bitmap);
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}
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@Nullable Bitmap get(@NonNull Uri key) {
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return mMemoryCache.get(key);
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}
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void clear() {
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mMemoryCache.evictAll();
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}
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private static class MemoryCache extends LruCache<Uri, Bitmap> {
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private MemoryCache(int maxSize) {
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super(maxSize);
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}
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@Override
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protected int sizeOf(@NonNull Uri key, @NonNull Bitmap bitmap) {
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return BitmapCompat.getAllocationByteCount(bitmap);
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}
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}
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}
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