APK扩展文件 - 下载程序库不支持Android Oreo和Android studio版本3.2？

Question

我相信最初的APK扩展库略微过度设计。而且不支持android Oreo。

第一：我正在尝试使用谷歌的下载程序库和应用程序许可服务，因为我的应用程序将使用APK扩展。我读了https://developer.android.com/google/play/expansion-files#java和https://kitefaster.com/2017/02/15/expansion-apk-files-android-studio/的指南，一切都很顺利。但是error.expansion.downloader不存在。我做了一切作为指导enter image description here，enter image description here，enter image description here

最后，我使用了来自git-hub https://github.com/bolein/better-apk-expansion的lib但是它总是在下载OBB文件时状态IDownloaderClient.STATE_FAILED_FETCHING_URL并且它不支持Android Oreo并且错误toast Developer警告包无法在通道上发布通知。代码下载OBB文件：

        if (!expansionFilesDelivered()) {

        try {
            Intent launchIntent = SampleDownloaderActivity.this
                    .getIntent();
            Intent intentToLaunchThisActivityFromNotification = new Intent(
                    SampleDownloaderActivity
                    .this, SampleDownloaderActivity.this.getClass());
            intentToLaunchThisActivityFromNotification.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
                    Intent.FLAG_ACTIVITY_CLEAR_TOP);
            intentToLaunchThisActivityFromNotification.setAction(launchIntent.getAction());

            if (launchIntent.getCategories() != null) {
                for (String category : launchIntent.getCategories()) {
                    intentToLaunchThisActivityFromNotification.addCategory(category);
                }
            }

            // Build PendingIntent used to open this activity from
            // Notification
            PendingIntent pendingIntent = PendingIntent.getActivity(
                    SampleDownloaderActivity.this,
                    0, intentToLaunchThisActivityFromNotification,
                    PendingIntent.FLAG_UPDATE_CURRENT);
            // Request to start the download
            int startResult = DownloaderClientMarshaller.startDownloadServiceIfRequired(this,
                    pendingIntent, SampleDownloaderService.class);

            if (startResult != DownloaderClientMarshaller.NO_DOWNLOAD_REQUIRED) {
                // The DownloaderService has started downloading the files,
                // show progress
                initializeDownloadUI();
                return;
            } // otherwise, download not needed so we fall through to
              // starting the movie
        } catch (NameNotFoundException e) {
            Log.e(LOG_TAG, "Cannot find own package! MAYDAY!");
            e.printStackTrace();
        }

    } else {
        validateXAPKZipFiles();
    }

我希望有人能给我一个解决方案。

---

Answer 1

尝试从Github转移到最新的扩展代码。谷歌还没有更新他们的文档。代码位于：https://github.com/google/play-apk-expansion

Answer 2

我真的不知道你的问题，但我的下面的代码使用play-apk-expansion并且工作正常。请注意，使用模拟器时使用谷歌播放支持的图像。

void check_apkx(){
    if (!expansionFilesDelivered()) {
        try {                  
            Intent launchIntent = MainActivity.this.getIntent();
            Intent intentToLaunchThisActivityFromNotification = new Intent(
                    MainActivity.this, MainActivity.this.getClass());
            intentToLaunchThisActivityFromNotification.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
                    Intent.FLAG_ACTIVITY_CLEAR_TOP);
            intentToLaunchThisActivityFromNotification.setAction(launchIntent.getAction());

            if (launchIntent.getCategories() != null) {
                for (String category : launchIntent.getCategories()) {
                    intentToLaunchThisActivityFromNotification.addCategory(category);
                }
            }
            // Build PendingIntent used to open this activity from
            // Notification
            PendingIntent pendingIntent = PendingIntent.getActivity(
                    MainActivity.this,
                    0, intentToLaunchThisActivityFromNotification,
                    PendingIntent.FLAG_UPDATE_CURRENT);
            // Request to start the download
            DownloaderClientMarshaller.startDownloadServiceIfRequired(this,
                    pendingIntent, SampleDownloaderService.class);

        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }

    } else {
//            validateXAPKZipFiles();


    }