加载第三方apk的资源文件，

  Class<?> class_AssetManager = Class.forName("android.content.res.AssetManager");

    Object assetMag = class_AssetManager.newInstance();

    Method method_addAssetPath = class_AssetManager

            .getDeclaredMethod("addAssetPath", String.class);

    String path = 路径;

    String fileName = 文件名;

    method_addAssetPath.invoke(assetMag, path + fileName);

    Resources res = context.getResources();

    Constructor<?> constructor_Resources = Resources.class

            .getConstructor(class_AssetManager, res.getDisplayMetrics()

            .getClass(), res.getConfiguration().getClass());

    res = (Resources) constructor_Resources.newInstance(assetMag,

            res.getDisplayMetrics(), res.getConfiguration());