在下载obb文件android

编程问答 2022-07-26

问题描述

我遵循了许多发布obb文件的教程，在创建了以下类之后，我导入了lvl库和apkx：

import com.google.android.vending.expansion.downloader.impl.DownloaderService;

public class SampleDownloadService extends DownloaderService {
private static final String BASE64_PUBLIC_KEY = "KEY_FROM_PLAY_CONSOLE";
private static final byte[] SALT = new byte[]{
        1,43,16,1,54,48,30,2,101,-4,9,-100,-108,-33,45,-1,84
};

/**
 * This public key comes from your Android Market publisher account,and it
 * used by the LVL to validate responses from Market on your behalf.
 */
@Override
public String getPublicKey() {
    return BASE64_PUBLIC_KEY;
}

/**
 * This is used by the preference obfuscater to make sure that your
 * obfuscated preferences are different than the ones used by other
 * applications.
 */
@Override
public byte[] getSALT() {
    return SALT;
}

/**
 * Fill this in with the class name for your alarm receiver. We do this
 * because receivers must be unique across all of Android (it's a good idea
 * to make sure that your receiver is in your unique package)
 */
@Override
public String getAlarmReceiverClassName() {
    return SampleAlarmReceiver.class.getName();
 }
}

还有另一类：

import com.google.android.vending.expansion.downloader.DownloaderClientMarshaller;

 import android.content.broadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager.NameNotFoundException;


public class SampleAlarmReceiver extends broadcastReceiver {

   @Override
public void onReceive(Context context,Intent intent) {
    try {
        DownloaderClientMarshaller.startDownloadServiceIfrequired(context,intent,SampleDownloadService.class);
    } catch (NameNotFoundException e) {
        e.printstacktrace();
    }
}

}

之后，我在清单文件中的应用程序标记中声明了

    <service android:name=".services.SampleDownloadService"/>
    <receiver android:name=".services.SampleAlarmReceiver"/>

然后参加我的活动：

    private val FILENAME =
    "main." + BuildConfig.VERSION_CODE.toString() + "." + BuildConfig.APPLICATION_ID.toString() + ".obb"

以及在OnCreate中：

try {
        // Check if expansion files are available before going any further
        if (!expansionFilesDelivered()) {
            // Build an Intent to start this activity from the Notification
            val notifierIntent = Intent(this,MainActivity::class.java.javaClass)
            notifierIntent.flags = Intent.FLAG_ACTIVITY_NEW_TASK or
                    Intent.FLAG_ACTIVITY_CLEAR_TOP
            val pendingIntent = PendingIntent.getActivity(
                this,notifierIntent,PendingIntent.FLAG_UPDATE_CURRENT
            )

            // Start the download service (if required)
            val startResult = DownloaderClientMarshaller.startDownloadServiceIfrequired(
                this,pendingIntent,SampleDownloadService::class.java
            )
            // If download has started,initialize this activity to show
            // download progress
            if (startResult != DownloaderClientMarshaller.NO_DOWNLOAD_required) {
                // This is where you do set up to display the download
                // progress (next step)
                downloaderClientStub = DownloaderClientMarshaller.CreateStub(
                    this,SampleDownloadService::class.java
                )
                return
            } // If the download wasn't necessary,fall through to start the app
        }else{
            tvModelDownload.visibility = View.GONE
            progressBar2.visibility = View.GONE
            val obbDir = obbDir
            val obbFile = File(obbDir,FILENAME)
            checkForModel(obbFile)
        }
    } catch (e: Exception) {
        e.printstacktrace()
    }

然后，我在内部测试部分发布了我的应用，并在播放控制台中上传时添加了obb文件。

错误是我总是无法获得许可而失败：IDownloaderClient.STATE_Failed_UNLICENSED。

解决方法

看起来我应该将我的电子邮件添加到Google Play开发者控制台并将其更改为许可

androidandroidexpansionfilefilefile