android - OBB 文件不是提取错误是 "XAPK file Validation Failed"

Question

成功实现apk扩展，OBB文件下载到Storage->Android->Obb->PackageName->main.1.com.packagename.obb

但是当我去提取时，我得到的问题是“不是 Zip 存档”。

ZipResourceFile zrf = new ZipResourceFile(fileName);

public ZipResourceFile(String zipFileName) throws IOException {
        addPatchFile(zipFileName);
    }

    void addPatchFile(String zipFileName) throws IOException {
        File file = new File(zipFileName);
        RandomAccessFile f = new RandomAccessFile(file, "r");
        long fileLength = f.length();

        if (fileLength < kEOCDLen) {
            throw new java.io.IOException();
        }

        long readAmount = kMaxEOCDSearch;
        if (readAmount > fileLength)
            readAmount = fileLength;

        /*
         * Make sure this is a Zip archive.
         */
        f.seek(0);

        int header = read4LE(f);
        if (header == kEOCDSignature) {
            Log.i(LOG_TAG, "Found Zip archive, but it looks empty");
            throw new IOException();
        } else if (header != kLFHSignature) {
            Log.v(LOG_TAG, "Not a Zip archive");
            throw new IOException();
        }

Answer 1

我在 2 天后得到了解决方案

唯一的问题是-

.obb 文件创建方向错误

obb文件创建步骤
-所有资源存储在一个文件夹中。
-压缩这个文件夹
-仅将 .obb 重命名为 .zip 文件

对这个解决方案感到满意