如何将文件从“资产”复制到root用户的Android设备中的系统？

Question

我想这样做。但是我得到了/ system / app / filename：打开失败：EROFS（只读文件系统）错误。

Answer 1

This is an example. Please try

private void saveFileToInternal(String orginal_url) {
        File file = new File(orginal_url);
        File dir = mContext.getDir(TEMP_FOLDER, Context.MODE_PRIVATE);
        File dest = new File(dir, "filename_" + file.getName());
        try {
            FileOutputStream out = new FileOutputStream(dest);
            out.flush();
            out.close();
        } catch (Exception e) {
            e.printStackTrace();
            Log.e("Can not create file", e.getMessage());
        }
    }