Android 如何查找so文件所在目录，安装APK时so安装到哪个目录

来源：互联网发布：linux切换到图形界面编辑：程序博客网时间：2024/05/16 17:47
Android 如何查找so文件所在的目录：OS<=2.2 和 OS>=2.3 的方法有所区别，见下面代码
    /**     * The function use to find so path for compatible android system     * Android OS >= 2.3     */    public static String findLibrary1(Context context, String libName) {        String result = null;        ClassLoader classLoader = (context.getClassLoader());        if (classLoader != null) {            try {                Method findLibraryMethod = classLoader.getClass().getMethod("findLibrary", new Class<?>[] { String.class });                   if (findLibraryMethod != null) {                    Object objPath = findLibraryMethod.invoke(classLoader, new Object[] { libName });                    if (objPath != null && objPath instanceof String) {                        result = (String) objPath;                    }                }            } catch (NoSuchMethodException e) {                Log.e("findLibrary1", e.toString());            } catch (IllegalAccessException e) {                Log.e("findLibrary1", e.toString());            } catch (IllegalArgumentException e) {                Log.e("findLibrary1", e.toString());            } catch (InvocationTargetException e) {                Log.e("findLibrary1", e.toString());            } catch (Exception e) {                Log.e("findLibrary1", e.toString());            }        }        return result;    }    /**     * The function use to find so path for compatible android system     * Android OS <= 2.2     */    public static String findLibrary2(Context context, String libName) {        String result = null;        ClassLoader classLoader = (context.getClassLoader());        if (classLoader != null) {            try {                Method findLibraryMethod = classLoader.getClass().getDeclaredMethod("findLibrary", new Class<?>[] { String.class });                if (findLibraryMethod != null) {                    if (!findLibraryMethod.isAccessible()) {                        findLibraryMethod.setAccessible(true);                    }                    Object objPath = findLibraryMethod.invoke(classLoader, new Object[] { libName });                    if (objPath != null && objPath instanceof String) {                        result = (String) objPath;                    }                }            } catch (NoSuchMethodException e) {                Log.e("findLibrary2", e.toString());            } catch (IllegalAccessException e) {                Log.e("findLibrary2", e.toString());            } catch (IllegalArgumentException e) {                Log.e("findLibrary2", e.toString());            } catch (InvocationTargetException e) {                Log.e("findLibrary2", e.toString());            } catch (Exception e) {                Log.e("findLibrary2", e.toString());            }        }        return result;    }
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