Question

我想直接在数据/数据（内部存储）上保存下载扩展文件。帮助将被追踪

Answer 1

不。您的扩展文件是在sdcard / Android / obb文件夹中下载的，您需要检索它们并将其解压缩以便进一步使用以下是获取扩展文件的一些代码

private final static String EXP_PATH =“/ Android / obb /”;

static String[] getAPKExpansionFiles(Context ctx, int mainVersion,
        int patchVersion) {
    String packageName = ctx.getPackageName();
    Vector<String> ret = new Vector<String>();
    if (Environment.getExternalStorageState().equals(
            Environment.MEDIA_MOUNTED)) {
        // Build the full path to the app's expansion files
        File root = Environment.getExternalStorageDirectory();
        File expPath = new File(root.toString() + EXP_PATH + packageName);

        // Check that expansion file path exists
        if (expPath.exists()) {
            if (mainVersion > 0) {
                String strMainPath = expPath + File.separator + "main."
                        + mainVersion + "." + packageName + ".obb";
                File main = new File(strMainPath);
                if (main.isFile()) {
                    ret.add(strMainPath);
                }
            }
            if (patchVersion > 0) {
                String strPatchPath = expPath + File.separator + "patch."
                        + mainVersion + "." + packageName + ".obb";
                File main = new File(strPatchPath);
                if (main.isFile()) {
                    ret.add(strPatchPath);
                }
            }
        }
    }
    String[] retArray = new String[ret.size()];
    ret.toArray(retArray);
    return retArray;
}



String[] test = getAPKExpansionFiles(myContext, 2, 0);
        Log.d(LOG_TAG, "total file : " + test.length);

        for (int i = 0; i < test.length; i++)
            Log.d(LOG_TAG, "filename is : " + test[i]);
        if (test.length > 0) {
            try {
                file = APKExpansionSupport.getResourceZipFile(test)
                        .getAllEntries();
                Log.d(LOG_TAG, "total zip file : " + file.length);
                for (int i = 0; i < file.length; i++) {

                        Log.d(LOG_TAG, "zip filename is : "
                                + (file[i].mFileName).split("/")[1]);

                        File("/mnt/sdcard/Android/obb/one.example.expansion.downloader/main.3.one.example.expansion.downloader.obb/myvideo.mp4");
                        File desc = new File("/mnt/sdcard/.YourFolder");

                        ZipHelper.unzip(test[0], desc);


                }
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

祝你好运！

从数据/数据/保存和读取扩展文件

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