45 lines
1.8 KiB
Java
45 lines
1.8 KiB
Java
/*
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* Copyright (C) 2017 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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import java.lang.reflect.Method;
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public class Main {
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private static long getDexFileSize(String filename) throws Exception {
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ClassLoader loader = Main.class.getClassLoader();
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Class<?> DexFile = loader.loadClass("dalvik.system.DexFile");
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Method DexFile_loadDex = DexFile.getMethod("loadDex",
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String.class,
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String.class,
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Integer.TYPE);
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Method DexFile_getStaticSizeOfDexFile = DexFile.getMethod("getStaticSizeOfDexFile");
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Object dexFile = DexFile_loadDex.invoke(null, filename, null, 0);
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return (Long) DexFile_getStaticSizeOfDexFile.invoke(dexFile);
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}
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private static void test(String resource) throws Exception {
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String filename = System.getenv("DEX_LOCATION") + "/res/" + resource;
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long size = getDexFileSize(filename);
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System.out.println("Size for " + resource + ": " + size);
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}
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public static void main(String[] args) throws Exception {
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test("test1.dex");
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test("test2.dex");
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test("test-jar.jar");
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test("multi-jar.jar");
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}
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}
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