{"id":1832,"date":"2023-03-29T21:05:36","date_gmt":"2023-03-29T13:05:36","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1832"},"modified":"2023-04-22T09:18:40","modified_gmt":"2023-04-22T01:18:40","slug":"principle-of-android-muitldex-hot-update-repair-solution","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/29\/principle-of-android-muitldex-hot-update-repair-solution\/","title":{"rendered":"Android Muitldex\u70ed\u66f4\u65b0\u4fee\u590d\u65b9\u6848\u539f\u7406"},"content":{"rendered":"

\u76ee\u524d\u6700\u70ed\u95e8\u7684\u70ed\u66f4\u65b0\u7531\u4e24\u79cd\uff1a\u4e00\u79cd\u662f\u817e\u8bafTinker\u4e3a\u4ee3\u8868\u7684\uff0c\u9700\u91cd\u542fapp\u7684\u70ed\u66f4\u65b0\uff1b\u4e00\u79cd\u662f\u7f8e\u56e2app\u4e3a\u4ee3\u8868\u7684Instant Run\uff0c\u65e0\u9700\u91cd\u542fapp<\/p>\n

\u80cc\u666f\u63cf\u8ff0<\/h2>\n

\u4ea7\u54c1\u5df2\u7ecf\u4e0a\u7ebf\uff0c\u6b64\u65f6\u7531\u4e8e\u5f15\u8d77bug\u7684\u4ee3\u7801\u53ea\u6709\u4e00\u884c\uff0c\u673a\u667a\u7684\u7a0b\u5e8f\u5458\u7528\u6700\u5feb\u7684\u65b9\u5f0f\u4fee\u590d\u4e86\u8fd9\u4e2abug\uff0c\u4e5f\u53ea\u662f\u6539\u4e86\u4e00\u884c\u4ee3\u7801\u3002\u90a3\u4e48\uff0c\u4ea7\u54c1\u5df2\u7ecf\u5728\u7ebf\u4e0a\uff0c\u600e\u4e48\u529e\uff1f<\/p>\n

<\/p>\n

\u6211\u4eec\u901a\u8fc7\u540e\u53f0\uff0c\u5411APP\u63a8\u9001\u4e86\u4e00\u4e2afix.dex<\/code>\u6587\u4ef6\uff0c\u7b49\u8fd9\u4e2a\u6587\u4ef6\u4e0b\u8f7d\u5b8c\u6210\uff0cAPP\u63d0\u793a\u7528\u6237\uff0c\u53d1\u73b0\u65b0\u7684\u66f4\u65b0\uff0c\u9700\u8981\u91cd\u542fAPP\u3002\u5f85\u7528\u6237\u91cd\u542f\uff0c\u4ee3\u7801\u4fee\u590d\u5373\u4f1a\u751f\u6548\u3002\u65e0\u9700\u53d1\u5e03\u65b0\u7248\u672c\uff01<\/p>\n

\u6309\u7167\u6b63\u5e38\u7684\u903b\u8f91\uff0c\u6211\u4eec\u505abug\u4fee\u590d\u4e00\u5b9a\u662f\u628afix.dex<\/code>\u653e\u5230\u670d\u52a1\u5668\u4e0a\uff0cAPP\u53bb\u670d\u52a1\u5668\u4e0b\u8f7d\u8865\u4e01\u5305\uff0c\u7136\u540e\u5b58\u653e\u5728APP\u79c1\u6709\u76ee\u5f55\uff0c\u91cd\u542fAPP\u4e4b\u540e\uff0cfix.dex<\/code>\u751f\u6548\u3002\u5f53\u52a0\u8f7d\u5230\u8fd9\u4e2a\u7c7b\u7684\u65f6\u5019\uff0c\u5c31\u4f1a\u53bb\u8bfbfix.dex<\/code>\u4e2d\u5f53\u65f6\u6253\u5305\u7684\u5df2\u4fee\u590dbug\u7684\u7c7b\u3002<\/p>\n

\u4e3a\u4e86\u6f14\u793a\u65b9\u4fbf\uff0cfix.dex<\/code>\u6587\u4ef6\u76f4\u63a5\u653e\u5728assets\uff0c\u7136\u540e\u4f7f\u7528\u9879\u76ee\u4e2d\u7684AssetsFileUtil<\/code>\u7c7b\u901a\u8fc7io\u6d41\u5c06\u5b83\u8bfb\u5199\u5230APP\u79c1\u6709\u76ee\u5f55\u4e0b\u3002<\/p>\n

\u6f14\u793a\u65b9\u6cd5\uff1a<\/p>\n

    \n
  1. \u5220\u6389fix.dex<\/code>\uff0c\u8fd0\u884cAPP\uff0cBug\u590d\u73b0<\/li>\n
  2. \u8fd8\u539ffix.dex<\/code>\uff0c\u8fd0\u884cAPP\uff0cBug\u5df2\u4fee\u590d<\/li>\n<\/ol>\n

    hook\u5b9e\u73b0<\/h2>\n

    \u6838\u5fc3\u7c7b\uff1aClassLoaderHookHelper<\/code>\uff0c\u5b9e\u73b0fix.dex<\/code>\u8865\u4e01\u4f5c\u7528\u3002\u67093\u4e2a\u65b9\u6cd5\uff0c\u5206\u522b\u662f\u5728\u4e0d\u540c\u7684\u7cfb\u7edf\u7248\u672c\u4e0a\uff0c\u6765\u5bf9\u6e90\u7801\u7a0b\u5e8f\u903b\u8f91\u8fdb\u884chook\uff0c\u63d0\u9ad8hook\u7684\u517c\u5bb9\u6027<\/p>\n

    import java.io.File;\nimport java.io.IOException;\nimport java.lang.reflect.Array;\nimport java.lang.reflect.Field;\nimport java.lang.reflect.InvocationTargetException;\nimport java.lang.reflect.Method;\nimport java.util.ArrayList;\nimport java.util.List;\n\npublic class ClassLoaderHookHelper {\n\n    \/\/23\u548c19\u7684\u5dee\u522b\uff0c\u5c31\u662f makeXXXElements \u65b9\u6cd5\u540d\u548c\u53c2\u6570\u8981\u6c42\u4e0d\u540c\n    \/\/\u540e\u8005\u662f makeDexElements(ArrayList<File> files, File optimizedDirectory, ArrayList<IOException> suppressedExceptions)\n    \/\/\u524d\u8005\u662f makePathElements(List<File> files, File optimizedDirectory, List<IOException> suppressedExceptions)\n    public static void hookV23(ClassLoader classLoader, File outDexFilePath, File optimizedDirectory) throws IllegalAccessException, InvocationTargetException {\n        Field pathList = ReflectionUtil.getField(classLoader, "pathList"); \/\/1\u3001\u83b7\u5f97DexPathList pathList \u5c5e\u6027\n        Object dexPathListObj = pathList.get(classLoader); \/\/2\u3001\u83b7\u5f97DexPathList pathList\u5bf9\u8c61\n        Field dexElementsField = ReflectionUtil.getField(dexPathListObj, "dexElements"); \/\/3\u3001\u83b7\u5f97DexPathList\u7684dexElements\u5c5e\u6027\n        Object[] oldElements = (Object[]) dexElementsField.get(dexPathListObj); \/\/4\u3001\u83b7\u5f97pathList\u5bf9\u8c61\u4e2d dexElements \u7684\u5c5e\u6027\u503c\n\n        List<File> files = new ArrayList<>(); \/\/\u5f00\u59cb\u6784\u5efamakeDexElements\u7684\u5b9e\u53c2\n        files.add(outDexFilePath);\n        List<IOException> ioExceptions = new ArrayList<>();\n        Method makePathElementsMethod = ReflectionUtil.getMethod( \/\/\u83b7\u5f97 DexPathList \u7684 makePathElements \u65b9\u6cd5\n                dexPathListObj, "makePathElements", List.class, File.class, List.class);\n        assert makePathElementsMethod != null;\n        Object[] newElements = (Object[]) makePathElementsMethod.invoke( \/\/\u8fd9\u4e2a\u65b9\u6cd5\u662f\u9759\u6001\u65b9\u6cd5\uff0c\u6240\u4ee5\u4e0d\u9700\u8981\u4f20\u5b9e\u4f8b\uff0c\u76f4\u63a5invoke\u3002\u8fd9\u91cc\u53d6\u5f97\u7684\u8fd4\u56de\u503c\u5c31\u662f \u6211\u4eec\u5916\u90e8\u7684dex\u6587\u4ef6\u6784\u5efa\u6210\u7684 Element\u6570\u7ec4\n                null, files, optimizedDirectory, ioExceptions); \/\/\u6784\u5efa\u51fa\u4e00\u4e2a\u65b0\u7684Element\u6570\u7ec4\n        \/\/\u4e0b\u9762\u628a\u65b0\u6570\u7ec4\u548c\u65e7\u6570\u7ec4\u5408\u5e76\uff0c\u6ce8\u610f\u65b0\u6570\u7ec4\u653e\u524d\u9762\n        Object[] dexElements = null;\n        if (newElements != null && newElements.length > 0) {\n            dexElements = (Object[]) Array.newInstance(oldElements.getClass().getComponentType(), oldElements.length + newElements.length); \/\/\u5148\u5efa\u4e00\u4e2a\u65b0\u5bb9\u5668\n            \/\/\u8fd95\u4e2a\u53c2\u6570\u89e3\u91ca\u4e00\u4e0b, \u5982\u679c\u662f\u5c06A,B \u4f60\u627eAB\u7684\u987a\u5e8f\u7ec4\u5408\u6210\u6570\u7ec4C\uff0c\u90a3\u4e48\u53c2\u6570\u7684\u542b\u4e49\uff0c\u4f9d\u6b21\u662f A\u5bf9\u8c61\uff0cA\u6570\u7ec4\u5f00\u59cb\u590d\u5236\u7684\u4f4d\u7f6e\uff0cC\u5bf9\u8c61\uff0cC\u5bf9\u8c61\u7684\u5f00\u59cb\u5b58\u653e\u7684\u4f4d\u7f6e\uff0c\u6570\u7ec4A\u4e2d\u8981\u590d\u5236\u7684\u5143\u7d20\u4e2a\u6570\n            System.arraycopy(\n                    newElements, 0, dexElements, 0, newElements.length); \/\/\u65b0\u6765\u7684\u6570\u7ec4\u653e\u524d\u9762\n            System.arraycopy(\n                    oldElements, 0, dexElements, newElements.length, oldElements.length);\n        }\n        \/\/\u6700\u540e\u628a\u5408\u5e76\u4e4b\u540e\u7684\u6570\u7ec4\u8bbe\u7f6e\u5230 dexElements\u91cc\u9762\n        dexElementsField.set(dexPathListObj, dexElements);\n    }\n\n    public static void hookV19(ClassLoader classLoader, File outDexFilePath, File optimizedDirectory) throws IllegalAccessException, InvocationTargetException {\n        Field pathList = ReflectionUtil.getField(classLoader, "pathList"); \/\/1\u3001\u83b7\u5f97DexPathList pathList \u5c5e\u6027\n        Object dexPathListObj = pathList.get(classLoader); \/\/2\u3001\u83b7\u5f97DexPathList pathList\u5bf9\u8c61\n        Field dexElementsField = ReflectionUtil.getField(dexPathListObj, "dexElements"); \/\/3\u3001\u83b7\u5f97DexPathList\u7684dexElements\u5c5e\u6027\n        Object[] oldElements = (Object[]) dexElementsField.get(dexPathListObj); \/\/4\u3001\u83b7\u5f97pathList\u5bf9\u8c61\u4e2d dexElements \u7684\u5c5e\u6027\u503c\n\n        List<File> files = new ArrayList<>(); \/\/\u5f00\u59cb\u6784\u5efamakeDexElements\u7684\u5b9e\u53c2\n        files.add(outDexFilePath);\n        List<IOException> ioExceptions = new ArrayList<>();\n        Method makePathElementsMethod = ReflectionUtil.getMethod( \/\/\u83b7\u5f97 DexPathList \u7684 makeDexElements \u65b9\u6cd5\n                dexPathListObj, "makeDexElements", ArrayList.class, File.class, ArrayList.class); \/\/\u522b\u5fd8\u4e86\u540e\u9762\u7684\u53c2\u6570\u5217\u8868\n        Object[] newElements = (Object[]) makePathElementsMethod.invoke(\n                null, files, optimizedDirectory, ioExceptions); \/\/\u8fd9\u4e2a\u65b9\u6cd5\u662f\u9759\u6001\u65b9\u6cd5\uff0c\u6240\u4ee5\u4e0d\u9700\u8981\u4f20\u5b9e\u4f8b,\u76f4\u63a5invoke;\u8fd9\u91cc\u53d6\u5f97\u7684\u8fd4\u56de\u503c\u5c31\u662f \u6211\u4eec\u5916\u90e8\u7684dex\u6587\u4ef6\u6784\u5efa\u6210\u7684 Element\u6570\u7ec4\n\n        \/\/\u4e0b\u9762\u628a\u65b0\u6570\u7ec4\u548c\u65e7\u6570\u7ec4\u5408\u5e76\uff0c\u6ce8\u610f\u65b0\u6570\u7ec4\u653e\u524d\u9762\n        Object[] dexElements = null;\n        if (newElements != null && newElements.length > 0) {\n            dexElements = (Object[]) Array.newInstance(oldElements.getClass().getComponentType(), oldElements.length + newElements.length); \/\/\u5148\u5efa\u4e00\u4e2a\u65b0\u5bb9\u5668\n            \/\/\u8fd95\u4e2a\u53c2\u6570\u89e3\u91ca\u4e00\u4e0b, \u5982\u679c\u662f\u5c06A,B \u4f60\u627eAB\u7684\u987a\u5e8f\u7ec4\u5408\u6210\u6570\u7ec4C\uff0c\u90a3\u4e48\u53c2\u6570\u7684\u542b\u4e49\uff0c\u4f9d\u6b21\u662f A\u5bf9\u8c61\uff0cA\u6570\u7ec4\u5f00\u59cb\u590d\u5236\u7684\u4f4d\u7f6e\uff0cC\u5bf9\u8c61\uff0cC\u5bf9\u8c61\u7684\u5f00\u59cb\u5b58\u653e\u7684\u4f4d\u7f6e\uff0c\u6570\u7ec4A\u4e2d\u8981\u590d\u5236\u7684\u5143\u7d20\u4e2a\u6570\n            System.arraycopy(\n                    newElements, 0, dexElements, 0, newElements.length);\/\/\u65b0\u6765\u7684\u6570\u7ec4\u653e\u524d\u9762\n            System.arraycopy(\n                    oldElements, 0, dexElements, newElements.length, oldElements.length);\n        }\n\n        \/\/\u6700\u540e\u628a\u5408\u5e76\u4e4b\u540e\u7684\u6570\u7ec4\u8bbe\u7f6e\u5230 dexElements\u91cc\u9762\n        dexElementsField.set(dexPathListObj, dexElements);\n    }\n\n    \/\/14\u548c19\u7684\u533a\u522b\uff0c\u662f\u8fd9\u4e2a\u65b9\u6cd5 makeDexElements(ArrayList<File> files,File optimizedDirectory)\u00b7\u00b7\u00b7\u5b83\u53c8\u5c11\u4e86\u4e00\u4e2a\u53c2\u6570\n    public static void hookV14(ClassLoader classLoader, File outDexFilePath, File optimizedDirectory) throws IllegalAccessException, InvocationTargetException {\n        Field pathList = ReflectionUtil.getField(classLoader, "pathList"); \/\/1\u3001\u83b7\u5f97DexPathList pathList \u5c5e\u6027\n        Object dexPathListObj = pathList.get(classLoader); \/\/2\u3001\u83b7\u5f97DexPathList pathList\u5bf9\u8c61\n        Field dexElementsField = ReflectionUtil.getField(dexPathListObj, "dexElements"); \/\/3\u3001\u83b7\u5f97DexPathList\u7684dexElements\u5c5e\u6027\n        Object[] oldElements = (Object[]) dexElementsField.get(dexPathListObj); \/\/4\u3001\u83b7\u5f97pathList\u5bf9\u8c61\u4e2d dexElements \u7684\u5c5e\u6027\u503c\n\n        List<File> files = new ArrayList<>(); \/\/\u5f00\u59cb\u6784\u5efamakeDexElements\u7684\u5b9e\u53c2\n        files.add(outDexFilePath);\n        List<IOException> ioExceptions = new ArrayList<>();\n        Method makePathElementsMethod = ReflectionUtil.getMethod( \/\/\u83b7\u5f97 DexPathList \u7684 makeDexElements \u65b9\u6cd5\n                dexPathListObj, "makeDexElements", ArrayList.class, File.class); \/\/\u522b\u5fd8\u4e86\u540e\u9762\u7684\u53c2\u6570\u5217\u8868\n        Object[] newElements = (Object[]) makePathElementsMethod.invoke(\n                null, files, optimizedDirectory, ioExceptions); \/\/\u8fd9\u4e2a\u65b9\u6cd5\u662f\u9759\u6001\u65b9\u6cd5\uff0c\u6240\u4ee5\u4e0d\u9700\u8981\u4f20\u5b9e\u4f8b,\u76f4\u63a5invoke;\u8fd9\u91cc\u53d6\u5f97\u7684\u8fd4\u56de\u503c\u5c31\u662f \u6211\u4eec\u5916\u90e8\u7684dex\u6587\u4ef6\u6784\u5efa\u6210\u7684 Element\u6570\u7ec4\n\n        \/\/\u4e0b\u9762\u628a\u65b0\u6570\u7ec4\u548c\u65e7\u6570\u7ec4\u5408\u5e76\uff0c\u6ce8\u610f\u65b0\u6570\u7ec4\u653e\u524d\u9762\n        Object[] dexElements = null;\n        if (newElements != null && newElements.length > 0) {\n            dexElements = (Object[]) Array.newInstance(oldElements.getClass().getComponentType(), oldElements.length + newElements.length); \/\/\u5148\u5efa\u4e00\u4e2a\u65b0\u5bb9\u5668\n            \/\/\u8fd95\u4e2a\u53c2\u6570\u89e3\u91ca\u4e00\u4e0b, \u5982\u679c\u662f\u5c06A,B \u4f60\u627eAB\u7684\u987a\u5e8f\u7ec4\u5408\u6210\u6570\u7ec4C\uff0c\u90a3\u4e48\u53c2\u6570\u7684\u542b\u4e49\uff0c\u4f9d\u6b21\u662f A\u5bf9\u8c61\uff0cA\u6570\u7ec4\u5f00\u59cb\u590d\u5236\u7684\u4f4d\u7f6e\uff0cC\u5bf9\u8c61\uff0cC\u5bf9\u8c61\u7684\u5f00\u59cb\u5b58\u653e\u7684\u4f4d\u7f6e\uff0c\u6570\u7ec4A\u4e2d\u8981\u590d\u5236\u7684\u5143\u7d20\u4e2a\u6570\n            System.arraycopy(\n                    newElements, 0, dexElements, 0, newElements.length);\/\/\u65b0\u6765\u7684\u6570\u7ec4\u653e\u524d\u9762\n            System.arraycopy(\n                    oldElements, 0, dexElements, newElements.length, oldElements.length);\n        }\n\n        \/\/\u6700\u540e\u628a\u5408\u5e76\u4e4b\u540e\u7684\u6570\u7ec4\u8bbe\u7f6e\u5230 dexElements\u91cc\u9762\n        dexElementsField.set(dexPathListObj, dexElements);\n    }\n}<\/code><\/pre>\n
    public class MyApp extends Application {\n    @Override\n    protected void attachBaseContext(Context base) {\n        super.attachBaseContext(base);\n\n        Log.d("yezhou", "" + getClassLoader()); \/\/PathClassLoader\n        Log.d("yezhou", "" + getClassLoader().getParent()); \/\/BootClassLoader\n\n        String fixPath = "fix.dex";\n        try {\n            String path = AssetsFileUtil.copyAssetToCache(this, fixPath);\n            File fixFile = new File(path);\n            if (Build.VERSION.SDK_INT >= 23) {\n                ClassLoaderHookHelper.hookV23(getClassLoader(), fixFile, getCacheDir());\n            } else if (Build.VERSION.SDK_INT >= 19) {\n                ClassLoaderHookHelper.hookV19(getClassLoader(), fixFile, getCacheDir());\n            } else if (Build.VERSION.SDK_INT >= 14) {\n                ClassLoaderHookHelper.hookV14(getClassLoader(), fixFile, getCacheDir());\n            }\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}<\/code><\/pre>\n
    import java.lang.reflect.Field;\nimport java.lang.reflect.Method;\n\npublic class ReflectionUtil {\n\n    \/\/\u5f97\u5230\u6307\u5b9a\u7c7b\u7684\u6307\u5b9a\u6210\u5458\u53d8\u91cf \uff0c\u517c\u5bb9\u8be5\u6210\u5458\u5728\u7236\u7c7b\u4e2d\u7684\u60c5\u51b5\n    public static Field getField(Object instance, String fieldName) {\n        \/\/\u4e0b\u9762\u8fd9\u4e2a\uff0c\u517c\u5bb9\u8be5\u6210\u5458\u53d8\u91cf\u5728\u7236\u7c7b\u4e2d\u7684\u60c5\u51b5\n        \/\/\u89e3\u8bfb\uff1a\u521d\u59cb\uff0cclazz\u662f\u5f53\u524d\u7c7b; \u5faa\u73af\u6267\u884c\u5224\u5b9a clazz\u4e0d\u4e3a\u7a7a\uff1b \u53d8\u91cf\u53d8\u5316\uff1aclazz\u8d4b\u503c\u4e3a\u5b83\u7684\u7236\u7c7b\n        for (Class<?> clazz = instance.getClass(); clazz != null; clazz = clazz.getSuperclass()) {\n            try {\n                Field field = clazz.getDeclaredField(fieldName); \/\/\u8fd9\u4e2a\u53ea\u662f\u5728\u672c\u7c7b\u4e2d\u53bb\u627e\uff0c\u5982\u679c\u6211\u8981\u7684\u6210\u5458\u5728\u7236\u7c7b\u4e2d\u5462\uff1f\n                if (!field.isAccessible())\n                    field.setAccessible(true);\n                return field;\n            } catch (NoSuchFieldException e) {\n\/\/                e.printStackTrace();\n            }\n        }\n        return null;\n    }\n\n    \/\/\u5f97\u5230\u6307\u5b9a\u7c7b\u7684\u6307\u5b9a\u6210\u5458\u65b9\u6cd5 \uff0c\u517c\u5bb9\u8be5\u6210\u5458\u5728\u7236\u7c7b\u4e2d\u7684\u60c5\u51b5\n    public static Method getMethod(Object instance, String methodName, Class<?>... args) {\n        \/\/\u4e0b\u9762\u8fd9\u4e2a\uff0c\u517c\u5bb9\u8be5\u6210\u5458\u53d8\u91cf\u5728\u7236\u7c7b\u4e2d\u7684\u60c5\u51b5\n        \/\/\u89e3\u8bfb\uff1a\u521d\u59cb\uff0cclazz\u662f\u5f53\u524d\u7c7b; \u5faa\u73af\u6267\u884c\u5224\u5b9a clazz\u4e0d\u4e3a\u7a7a\uff1b\u53d8\u91cf\u53d8\u5316\uff1aclazz\u8d4b\u503c\u4e3a\u5b83\u7684\u7236\u7c7b\n        for (Class<?> clazz = instance.getClass(); clazz != null; clazz = clazz.getSuperclass()) {\n            try {\n                Method method = clazz.getDeclaredMethod(methodName, args); \/\/\u8fd9\u4e2a\u53ea\u662f\u5728\u672c\u7c7b\u4e2d\u53bb\u627e\uff0c\u5982\u679c\u6211\u8981\u7684\u6210\u5458\u5728\u7236\u7c7b\u4e2d\u5462\uff1f\n                if (!method.isAccessible())\n                    method.setAccessible(true);\n                return method;\n\n            } catch (NoSuchMethodException e) {\n\/\/                e.printStackTrace();\n            }\n        }\n        return null;\n    }\n\n}<\/code><\/pre>\n
    import android.content.Context;\nimport android.widget.Toast;\n\nimport java.io.File;\nimport java.io.FileOutputStream;\nimport java.io.IOException;\nimport java.io.InputStream;\n\npublic class AssetsFileUtil {\n\n    \/**\n     * \u5c06assets\u4e2d\u7684\u6587\u4ef6\u62f7\u8d1d\u5230app\u7684\u7f13\u5b58\u76ee\u5f55\uff0c\u5e76\u4e14\u8fd4\u56de\u62f7\u8d1d\u4e4b\u540e\u6587\u4ef6\u7684\u7edd\u5bf9\u8def\u5f84\n     *\n     * @param context\n     * @param fileName\n     * @return\n     *\/\n    public static String copyAssetToCache(Context context, String fileName) {\n\n        File cacheDir = context.getFilesDir(); \/\/app\u7684\u7f13\u5b58\u76ee\u5f55\n        if (!cacheDir.exists()) {\n            cacheDir.mkdirs(); \/\/\u5982\u679c\u6ca1\u6709\u7f13\u5b58\u76ee\u5f55\uff0c\u5c31\u521b\u5efa\n        }\n        File outPath = new File(cacheDir, fileName); \/\/\u521b\u5efa\u8f93\u51fa\u7684\u6587\u4ef6\u4f4d\u7f6e\n        if (outPath.exists()) {\n            outPath.delete(); \/\/\u5982\u679c\u8be5\u6587\u4ef6\u5df2\u7ecf\u5b58\u5728\uff0c\u5c31\u5220\u6389\n        }\n        InputStream is = null;\n        FileOutputStream fos = null;\n        try {\n            boolean res = outPath.createNewFile(); \/\/\u521b\u5efa\u6587\u4ef6\uff0c\u5982\u679c\u521b\u5efa\u6210\u529f\uff0c\u5c31\u8fd4\u56detrue\n            if (res) {\n                is = context.getAssets().open(fileName); \/\/\u62ff\u5230main\/assets\u76ee\u5f55\u7684\u8f93\u5165\u6d41\uff0c\u7528\u4e8e\u8bfb\u53d6\u5b57\u8282\n                fos = new FileOutputStream(outPath); \/\/\u8bfb\u53d6\u51fa\u6765\u7684\u5b57\u8282\u6700\u7ec8\u5199\u5230outPath\n                byte[] buf = new byte[is.available()]; \/\/\u7f13\u5b58\u533a\n                int byteCount;\n                while ((byteCount = is.read(buf)) != -1) { \/\/\u5faa\u73af\u8bfb\u53d6\n                    fos.write(buf, 0, byteCount);\n                }\n                Toast.makeText(context, "\u52a0\u8f7d\u6210\u529f", Toast.LENGTH_SHORT).show();\n                return outPath.getAbsolutePath();\n            } else {\n                Toast.makeText(context, "\u521b\u5efa\u5931\u8d25", Toast.LENGTH_SHORT).show();\n            }\n        } catch (IOException e) {\n            e.printStackTrace();\n        } finally {\n            try {\n                if (null != fos) {\n                    fos.flush();\n                    fos.close();\n                }\n                if (null != is)\n                    is.close();\n            } catch (IOException e) {\n                e.printStackTrace();\n            }\n        }\n\n        return null;\n    }\n}<\/code><\/pre>\n
    \u70ed\u4fee\u590d\u6838\u5fc3\u6280\u672f<\/h2>\n
    \u5176\u5b9e\u70ed\u4fee\u590d\u7684\u6838\u5fc3\u6280\u672f\uff0c\u5c31\u4e00\u53e5\u8bdd\uff0cHook ClassLoader<\/code>\uff0c\u4f46\u662f\u8981\u6df1\u5165\u4e86\u89e3\u5b83\uff0c\u9700\u8981\u76f8\u5f53\u591a\u7684\u57fa\u7840\u77e5\u8bc6\uff0c\u4e0b\u9762\u5217\u4e3e\u51fa\u5fc5\u987b\u8981\u77e5\u9053\u7684\u4e00\u4e9b\u4e1c\u897f\u3002<\/p>\n
    \u57fa\u7840\u77e5\u8bc6\u9884\u5907<\/h3>\n
    Dex\u6587\u4ef6\u662f\u4ec0\u4e48<\/h4>\n
    \u6211\u4eec\u5199\u5b89\u5353\uff0c\u76ee\u524d\u8fd8\u662f\u7528java\u6bd4\u8f83\u591a\uff0c\u5c31\u7b97\u662f\u7528kotlin\uff0c\u5b83\u6700\u7ec8\u4e5f\u662f\u8981\u8f6c\u6362\u6210java\u6765\u8fd0\u884c\u3002java\u6587\u4ef6\uff0c\u88ab\u7f16\u8bd1\u6210class\u4e4b\u540e\uff0c\u591a\u4e2aclass\u6587\u4ef6\uff0c\u4f1a\u88ab\u6253\u5305\u6210classes.dex<\/code>\uff0c\u88ab\u653e\u5230apk\u4e2d\uff0c\u5b89\u5353\u8bbe\u5907\u62ff\u5230apk\uff0c\u53bb\u5b89\u88c5\u89e3\u6790\uff0c\u5f53\u6211\u4eec\u8fd0\u884capp\u65f6\uff0capp\u7684\u7a0b\u5e8f\u903b\u8f91\u5168\u90fd\u662f\u5728classes.dex<\/code>\u4e2d\u3002\u6240\u4ee5\uff0cdex\u6587\u4ef6\u662f\u4ec0\u4e48\uff1f\u4e00\u53e5\u8bdd\uff0cdex\u6587\u4ef6\u662fAndroid app\u7684\u6e90\u4ee3\u7801\u7684\u6700\u7ec8\u6253\u5305\u3002<\/p>\n
    Dex\u6587\u4ef6\u5982\u4f55\u751f\u6210<\/h4>\n
    Android Studio \u6253\u5305apk\u7684\u65f6\u5019\u4f1a\u751f\u6210Dex\uff0c\u5176\u5b9e\u5b83\u4f7f\u7528\u7684\u662fSDK\u7684dx\u547d\u4ee4\uff0c\u6211\u4eec\u53ef\u4ee5\u7528dx\u547d\u4ee4\u81ea\u5df1\u53bb\u6253\u5305\u60f3\u8981\u6253\u5305\u7684class
    \n\u547d\u4ee4\u683c\u5f0f\u4e3a\uff1adx --dex --output=output.dex xxxx.class<\/code>
    \n\u6ce8\uff1adx.bat\u5728\u5b89\u5353SDK\u7684\u76ee\u5f55\u4e0b\uff1a\u6bd4\u5982\u6211\u7684 C:\\AndroidSdk\\build-tools\\28.0.3\\dx.bat<\/code><\/p>\n
    ClassLoader\u662f\u4ec0\u4e48<\/h4>\n
    ClassLoader\u6765\u81eajdk\uff0c\u7ffb\u8bd1\u4e3a\uff1a\u7c7b\u52a0\u8f7d\u5668\uff0c\u7528\u4e8e\u5c06class\u6587\u4ef6\u4e2d\u7684\u7c7b\uff0c\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\uff0c\u751f\u6210class\u5bf9\u8c61\u3002\u53ea\u6709\u5b58\u5728class\u5bf9\u8c61\uff0c\u6211\u4eec\u624d\u53ef\u4ee5\u521b\u5efa\u6211\u4eec\u60f3\u8981\u7684\u5bf9\u8c61\u3002Android SDK\u7ee7\u627f\u4e86JDK\u7684ClassLoader\uff0c\u521b\u9020\u51fa\u4e86\u65b0\u7684ClassLoader\u5b50\u7c7b\u3002<\/p>\n
    \u7528\u7684\u6bd4\u8f83\u591a\u7684\u662fBaseDexClassLoader<\/code>\uff0cDexClassLoader<\/code>\uff0cPathClassLoader<\/code>\uff0c\u5176\u4ed6\u8fd9\u4e9b\uff0c\u5e94\u8be5\u662f\u8c37\u6b4c\u5927\u4f6c\u521b\u9020\u51fa\u6765\u65b0\u7684\u7c7b\u52a0\u8f7d\u5668\u5b50\u7c7b\u5427\uff0c\u8fd8\u6ca1\u7814\u7a76\u8fc7\u3002<\/p>\n
    \n
    \u6ce8\uff1a\u5173\u4e8eDexClassLoader<\/code>\u548cPathClassLoader<\/code>\uff0c\u7f51\u4e0a\u8d44\u6599\u6709\u4e2a\u8bef\u533a\uff0c\u5e94\u8be5\u4e0d\u5c11\u4eba\u90fd\u8ba4\u4e3a\uff0cPathClassLoader<\/code>\u7528\u4e8e\u52a0\u8f7dapp\u5185\u90e8\u7684dex\u6587\u4ef6\uff0cDexClassLoader<\/code>\u7528\u4e8e\u52a0\u8f7d\u5916\u90e8\u7684dex\u6587\u4ef6\uff0c\u4f46\u662f\u5176\u5b9e\u53ea\u8981\u770b\u4e00\u773c\u8fd9\u4e24\u4e2a\u7c7b\u7684\u5173\u7cfb\uff0c\u5c31\u4f1a\u53d1\u73b0\uff0c\u5b83\u4eec\u90fd\u662f\u7ee7\u627f\u81eaBaseDexClassLoader<\/code>\uff0c\u4ed6\u4eec\u7684\u6784\u9020\u51fd\u6570\u5185\u90e8\u90fd\u4f1a\u53bb\u6267\u884c\u7236\u7c7b\u7684\u6784\u9020\u51fd\u6570\u3002\u4ed6\u4eec\u53ea\u6709\u4e00\u4e2a\u5dee\u522b\uff0c\u90a3\u5c31\u662fPathClssLoader<\/code>\u4e0d\u7528\u4f20optimizedDirectory<\/code>\u8fd9\u4e2a\u53c2\u6570\uff0c\u4f46\u662fDexClassLoader<\/code>\u5fc5\u987b\u4f20\u3002\u8fd9\u4e2a\u53c2\u6570\u7684\u4f5c\u7528\u662f\uff0c\u4f20\u5165\u4e00\u4e2adex\u4f18\u5316\u4e4b\u540e\u7684\u5b58\u653e\u76ee\u5f55\u3002\u800c\u4e8b\u5b9e\u4e0a\uff0c\u867d\u7136PathClassLoader<\/code>\u4e0d\u8981\u6c42\u4f20\u8fd9\u4e2aoptimizedDirectory<\/code>\uff0c\u4f46\u662f\u5b83\u5b9e\u9645\u4e0a\u662f\u7ed9\u4e86\u4e00\u4e2a\u9ed8\u8ba4\u503c\u3002\u6240\u4ee5\u4e0d\u8981\u518d\u8ba4\u4e3aPathClassLoader<\/code>\u4e0d\u80fd\u52a0\u8f7d\u5916\u90e8\u7684dex\u4e86\uff0c\u5b83\u53ea\u662f\u6ca1\u6709\u8ba9\u4f20optimizedDirectory<\/code>\u800c\u5df2\u3002<\/p>\n<\/blockquote>\n
    \u53e6\u5916\uff1a<\/p>\n
      \n
    • BootClassLoader<\/code> \u7528\u4e8e\u52a0\u8f7dAndroid Framework<\/code>\u5c42class\u6587\u4ef6(SDK\u4e2d\u6ca1\u6709\u8fd9\u4e2aBootClassLoader<\/code>\uff0c\u4e5f\u662f\u5f88\u5947\u602a)<\/li>\n
    • PathClassLoader<\/code> \u662f\u7528\u4e8eAndroid\u5e94\u7528\u7a0b\u5e8f\u7c7b\u7684\u52a0\u8f7d\u5668\uff0c\u53ef\u4ee5\u52a0\u8f7d\u6307\u5b9a\u7684dex\uff0c\u4ee5\u53cajar\u3001zip\u3001apk\u4e2d\u7684classes.dex<\/code><\/li>\n
    • DexClassLoader<\/code> \u53ef\u4ee5\u52a0\u8f7d\u6307\u5b9a\u7684dex\uff0c\u4ee5\u53cajar\u3001zip\u3001apk\u4e2d\u7684classes.dex<\/code><\/li>\n<\/ul>\n
      ClassLoader\u7684\u53cc\u4eb2\u59d4\u6258\u673a\u5236\u662f\u4ec0\u4e48<\/h4>\n
      Android\u91cc\u9762ClassLoader<\/code>\u7684\u4f5c\u7528\uff0c\u662f\u5c06dex\u6587\u4ef6\u4e2d\u7684\u7c7b\uff0c\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\uff0c\u751f\u6210Class\u5bf9\u8c61\uff0c\u4f9b\u6211\u4eec\u4f7f\u7528
      \n\uff08\u4e3e\u4e2a\u4f8b\u5b50\uff1a\u6211\u5199\u4e86\u4e00\u4e2aA\u7c7b\uff0capp\u8fd0\u884c\u8d77\u6765\u4e4b\u540e\uff0c\u5f53\u6211\u9700\u8981new\u4e00\u4e2aA\uff0cClassLoader<\/code>\u9996\u5148\u4f1a\u5e2e\u6211\u67e5\u627eA\u7684Class\u5bf9\u8c61\u662f\u5426\u5b58\u5728\uff0c\u5982\u679c\u5b58\u5728\uff0c\u5c31\u76f4\u63a5\u7ed9\u6211Class\u5bf9\u8c61\uff0c\u8ba9\u6211\u62ff\u53bbnew A\uff0c\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u5c31\u4f1a\u51fa\u521b\u5efa\u8fd9\u4e2aA\u7684Class\u5bf9\u8c61\uff09\u3002\u8fd9\u4e2a\u67e5\u627e\u7684\u8fc7\u7a0b\uff0c\u5c31\u9075\u5faa\u53cc\u4eb2\u59d4\u6258\u673a\u5236\u3002<\/p>\n
      \u4e00\u53e5\u8bdd\u89e3\u91ca\u53cc\u4eb2\u59d4\u6258\u673a\u5236\uff1a\u67d0\u4e2a\u7c7b\u52a0\u8f7d\u5668\u5728\u52a0\u8f7d\u67d0\u4e2a\u7c7b\u7684\u65f6\u5019\uff0c\u9996\u5148\u4f1a\u5c06\u8fd9\u4ef6\u4e8b\u59d4\u6258\u7ed9parent\u7c7b\u52a0\u8f7d\u5668\uff0c\u4f9d\u6b21\u9012\u5f52\uff0c\u5982\u679cparent\u7c7b\u52a0\u8f7d\u5668\u53ef\u4ee5\u5b8c\u6210\u52a0\u8f7d\uff0c\u5c31\u4f1a\u76f4\u63a5\u8fd4\u56deClass\u5bf9\u8c61\u3002\u5982\u679cparent\u627e\u4e0d\u5230\u6216\u8005\u6ca1\u6709\u7236\u4e86\uff0c\u5c31\u4f1a\u81ea\u5df1\u52a0\u8f7d\u3002<\/p>\n
      public abstract class ClassLoader {\n\n    protected Class<?> loadClass(String name, boolean resolve)\n        throws ClassNotFoundException\n    {\n            \/\/ First, check if the class has already been loaded\n            Class<?> c = findLoadedClass(name);\n            if (c == null) {\n                try {\n                    if (parent != null) {  \/\/\u4f18\u5148\u4ea4\u7ed9parent\u5904\u7406\n                        c = parent.loadClass(name, false);\n                    } else {  \/\/\u5982\u679c\u6ca1\u6709parent\uff0c\u90a3\u5c31\u4ea4\u7ed9BootClassLoader\u53bb\u52a0\u8f7d\n                        c = findBootstrapClassOrNull(name);\n                    }\n                } catch (ClassNotFoundException e) {\n                    \/\/ ClassNotFoundException thrown if class not found\n                    \/\/ from the non-null parent class loader\n                }\n\n                if (c == null) {  \/\/\u5982\u679cparent\u627e\u5230\u7684\u662f\u7a7a\uff0c\u90a3\u5c31\u81ea\u5df1\u6765findClass\n                    \/\/ If still not found, then invoke findClass in order\n                    \/\/ to find the class.\n                    c = findClass(name);\n                }\n            }\n            return c;\n    }<\/code><\/pre>\n
      hook\u601d\u8def<\/h3>\n
      OK\uff0c\u73b0\u5728\u53ef\u4ee5\u6765\u89e3\u8bfb\u5982\u4f55\u53bbhook ClassLoader<\/code>\u4e86\uff0c\u89e3\u8bfb\u4e4b\u524d\uff0c\u5148\u5f04\u6e05\u695a\uff0c\u4e3a\u4f55\u8981hook ClassLoader<\/code>\uff0c\u4e3a\u4ec0\u4e48hook\u4e86\u5b83\u4e4b\u540e\uff0c\u6211\u7684fix.dex<\/code>\u5c31\u80fd\u53d1\u6325\u4f5c\u7528\uff1f<\/p>\n
      \u5148\u89e3\u51b3\u8fd9\u4e2a\u7591\u95ee\uff0c\u65e2\u7136\u662fhook\uff0c\u90a3\u4e48\u81ea\u7136\u8981\u8bfb\u61c2\u6e90\u7801\uff0c\u56e0\u4e3ahook\u5c31\u662f\u5728\u7406\u89e3\u6e90\u7801\u601d\u7ef4\u7684\u524d\u63d0\u4e0b\uff0c\u66f4\u6539\u6e90\u7801\u903b\u8f91\u3002<\/p>\n
      \u6309\u7167\u4e0a\u9762\u56fe\uff0c\u53bb\u8ffd\u8e2a\u6e90\u7801\uff0c\u4f1a\u53d1\u73b0\uff0cClassLoader<\/code>\u6700\u7ec8\u4f1a\u4eceDexFile<\/code>\u5bf9\u8c61\u4e2d\u53bb\u83b7\u5f97\u4e00\u4e2aClass\u5bf9\u8c61\u3002\u5e76\u4e14\u5728DexPathList<\/code>\u7c7b\u4e2dfindClass<\/code>\u7684\u65f6\u5019\uff0c\u5b58\u5728\u4e00\u4e2aElement<\/code>\u6570\u7ec4\u7684\u904d\u5386\u3002<\/p>\n
      \u8fd9\u5c31\u610f\u5473\u7740\uff0c\u5982\u679c\u5b58\u5728\u591a\u4e2adex\u6587\u4ef6\uff0c\u591a\u4e2adex\u6587\u4ef6\u4e2d\u90fd\u5b58\u5728\u540c\u6837\u4e00\u4e2aclass\uff0c\u90a3\u4e48\u5b83\u4f1a\u4ece\u7b2c\u4e00\u4e2a\u5f00\u59cb\u627e\uff0c\u5982\u679c\u627e\u5230\u4e86\uff0c\u5c31\u4f1a\u7acb\u5373\u8fd4\u56de\u3002\u5982\u679c\u6ca1\u627e\u5230\uff0c\u5c31\u5f80\u4e0b\u4e00\u4e2adex\u53bb\u627e\u3002<\/p>\n
      \u4e5f\u5c31\u662f\u8bf4\uff0c\u5982\u679c\u6211\u4eec\u53ef\u4ee5\u5728\u8fd9\u4e2a\u6570\u7ec4\u4e2d\u63d2\u5165\u6211\u4eec\u81ea\u5df1\u7684\u4fee\u590dbug\u7684fix.dex<\/code>\uff0c\u90a3\u6211\u4eec\u5c31\u53ef\u4ee5\u8ba9\u6211\u4eec\u5df2\u7ecf\u4fee\u590dbug\u7684\u8865\u4e01\u7c7b\u53d1\u6325\u4f5c\u7528\uff0c\u8ba9\u7c7b\u52a0\u8f7d\u5668\u4f18\u5148\u8bfb\u53d6\u6211\u4eec\u7684\u8865\u4e01\u7c7b\u3002<\/p>\n
      \n
      \u786e\u5b9a\u601d\u8def\uff0c\u6211\u4eec\u8981\u6539\u53d8app\u542f\u52a8\u4e4b\u540e\uff0c\u81ea\u5e26\u7684ClassLoader<\/code>\u5bf9\u8c61\uff08\u5177\u4f53\u5b9e\u73b0\u7c7b\u662fPathClassLoader<\/code>\uff09\u4e2dDexPathList<\/code>\u4e2dElement[]<\/code>\u7684\u5b9e\u9645\u503c\u3002<\/p>\n<\/blockquote>\n
        \n
      1. \u53d6\u5f97PathClassLoader<\/code>\u7684pathList<\/code>\u7684\u5c5e\u6027<\/li>\n
      2. \u53d6\u5f97PathClassLoader<\/code>\u7684pathList<\/code>\u7684\u5c5e\u6027\u771f\u5b9e\u503c(\u5f97\u5230\u4e00\u4e2aDexPathList<\/code>\u5bf9\u8c61)<\/li>\n
      3. \u83b7\u5f97DexPathList<\/code>\u4e2d\u7684dexElements<\/code>\u5c5e\u6027<\/li>\n
      4. \u83b7\u5f97DexPathList<\/code>\u5bf9\u8c61\u4e2ddexElements<\/code>\u5c5e\u6027\u7684\u771f\u5b9e\u503c(\u5b83\u662f\u4e00\u4e2aElement<\/code>\u6570\u7ec4)<\/li>\n
      5. \u7528\u5916\u90e8\u4f20\u5165\u7684Dex\u6587\u4ef6\u8def\u5f84\uff0c\u6784\u5efa\u4e00\u4e2a\u6211\u4eec\u81ea\u5df1\u7684Element<\/code>\u6570\u7ec4<\/li>\n
      6. \u5c06\u4ece\u5916\u90e8\u4f20\u5165\u7684ClassLoader<\/code>\u4e2d\u5f97\u5230\u7684Element<\/code>\u6570\u7ec4\u548c \u6211\u4eec\u81ea\u5df1\u7684Element<\/code>\u6570\u7ec4\u5408\u5e76\u8d77\u6765\uff0c\u6ce8\u610f\uff0c\u6211\u4eec\u81ea\u5df1\u7684\u6570\u7ec4\u5143\u7d20\u8981\u653e\u524d\u9762\uff01<\/li>\n
      7. \u5c06\u521a\u624d\u5408\u5e76\u7684\u65b0Element<\/code>\u6570\u7ec4\uff0c\u8bbe\u7f6e\u5230\u5916\u90e8\u4f20\u5165\u7684ClassLoader<\/code>\u91cc\u9762\u53bb<\/li>\n<\/ol>\n
        TIPS<\/h2>\n
          \n
        • \n
          \u5f53\u6211\u4eec\u9700\u8981\u53cd\u5c04\u83b7\u5f97\u4e00\u4e2a\u7c7b\u7684\u67d0\u4e2a\u65b9\u6cd5\u6216\u8005\u6210\u5458\u53d8\u91cf\u65f6\uff0c\u6211\u4eec\u53ea\u60f3\u62ffgetDeclareXX<\/code>\uff0c\u56e0\u4e3a\u6211\u4eec\u53ea\u60f3\u62ff\u672c\u7c7b\u4e2d\u7684\u6210\u5458\uff0c\u4f46\u662f\u4ec5\u4ec5getDeclareXX<\/code>\u4e0d\u80fd\u8de8\u8d8a\u7ee7\u627f\u5173\u7cfb\u62ff\u5230\u7236\u7c7b\u4e2d\u7684\u975e\u79c1\u6709\u6210\u5458\uff0cReflectionUtil.java<\/code>\u652f\u6301\u8de8\u8d8a\u7ee7\u627f\u5173\u7cfb\u62ff\u5230\u7236\u7c7b\u7684\u975e\u79c1\u6709\u6210\u5458\u3002<\/p>\n<\/li>\n
        • \n
          \u8fd9\u79cd\u70ed\u4fee\u590d\uff0c\u662f\u4e0d\u662f\u4e0b\u8f7d\u7684\u5305\u4f1a\u5f88\u5927\uff0c\u548c\u539f\u5148\u7684apk\u5dee\u4e0d\u591a\u5927\uff1f\u7b54\u6848\u662f\uff0cNO\uff0c\u6211\u4eec\u53ea\u9700\u8981\u5c06\u6211\u4eec\u4fee\u590dbug\u4e4b\u540e\u7684\u8865\u4e01dex\u4e0b\u8f7d\u5230\u8bbe\u5907\uff0c\u8ba9app\u91cd\u542f\uff0c\u53bb\u8bfb\u53d6\u8fd9\u4e2adex\u5373\u53ef\u3002\u8865\u4e01\u5305\u5f88\u5c0f\uff0c\u751a\u81f3\u53ea\u67091K.<\/p>\n<\/li>\n
        • \n
          \u8fd9\u79cd\u4fee\u590d\u65b9\u5f0f\u5fc5\u987b\u91cd\u542f\u4e48\uff1f\u662f\u7684\uff0c\u5fc5\u987b\u91cd\u542f\uff0c\u5f53\u7136\uff0c\u5b58\u5728\u4e0d\u9700\u8981\u91cd\u542f\u5c31\u53ef\u4ee5\u4fee\u590dbug\u7684\u65b9\u6cd5\uff0c\u90a3\u79cd\u65b9\u6cd5\u53eb\u505aInstant Run\u65b9\u6848\uff0c\u672c\u6587\u4e0d\u6d89\u53ca\u3002\u800c\u5f53\u524d\u8fd9\u79cd\u65b9\u6848\u53eb\u505a\uff1aMultipleDex<\/code>\uff0c\u5373\u591adex\u65b9\u6848\u3002<\/p>\n<\/li>\n
        • \n
          \u4e3a\u4ec0\u4e48\u8981\u5bf9SDK 23,19,14 \u5199\u4e0d\u540c\u7684hook\u4ee3\u7801\uff1f\u56e0\u4e3aSDK\u7248\u672c\u7684\u53d8\u8fc1\uff0c\u5bfc\u81f4\u4e00\u4e9b\u7c7b\u7684\u5173\u7cfb\uff0c\u53d8\u91cf\u540d\uff0c\u65b9\u6cd5\u540d\uff0c\u65b9\u6cd5\u53c2\u6570\uff08\u4e2a\u6570\u548c\u7c7b\u578b\uff09\u90fd\u4f1a\u53d1\u751f\u53d8\u5316\uff0c\u6240\u4ee5\uff0c\u8981\u9488\u5bf9\u5404\u4e2a\u53d8\u8fc1\u7684\u7248\u672c\u8fdb\u884c\u517c\u5bb9\u3002<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
          \u76ee\u524d\u6700\u70ed\u95e8\u7684\u70ed\u66f4\u65b0\u7531\u4e24\u79cd\uff1a\u4e00\u79cd\u662f\u817e\u8bafTinker\u4e3a\u4ee3\u8868\u7684\uff0c\u9700\u91cd\u542fapp\u7684\u70ed\u66f4\u65b0\uff1b\u4e00\u79cd\u662f\u7f8e\u56e2app\u4e3a\u4ee3\u8868\u7684Ins […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[311],"tags":[310,468],"class_list":["post-1832","post","type-post","status-publish","format-standard","hentry","category-android-advance","tag-hook","tag-muitldex"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1832","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1832"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1832\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1832"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1832"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}