在Android中安装加密的obb apk扩展文件

问题描述

我已经使用jobb工具创建了一个加密的.obb文件。我使用以下代码挂载obb文件：

  public void mountExpansion（）{
 final StorageManager storageManager =（ StorageManager）getContext（）
 .getSystemService（Context.STORAGE_SERVICE）; 
 
 
 String packageName =name.of.the.package; 
 String filePath = Environment.getExternalStorageDirectory（）
 +/ Android / obb /+ packageName +/+main。 
 + version +。 + packageName +.obb; 
 final文件mainFile = new File（filePath）; 
 if（mainFile.exists（））{
 Log.d（STORAGE，FILE：+ filePath +Exists）; 
} else {
 Log.d（STORAGE，FILE：+ filePath +DOESNT EXIST）; 
} 
 
 String key =thisIsMyPassword; 
 if（！storageManager.isObbMounted（mainFile.getAbsolutePath（）））{
 if（mainFile.exists（））{
 if（storageManager.mountObb（mainFile.getAbsolutePath（），key， 
 new OnObbStateChangeListener（）{
 @Override 
 public void onObbStateChange（String path，int state）{
 super.onObbStateChange（path，state）; 
 Log.d （PATH =，路径）; 
 Log.d（STATE =，state +）; 
 expandFilePath = storageManager.getMountedObbPath（path）; 
 if（state == OnObbStateChangeListener .MOUNTED）{
 expandFilePath = storageManager 
 .getMountedObbPath（path）; 
 Log.d（STORAGE， - > MOUNTED）; 
} 
 else {
 Log.d（##，Path：+ path +;状态：+状态; 
} 
} 
}））
 {
 Log.d（STORAGE_MNT，SUCCESSFULLY QUEUED）; 
} 
 else 
 {
 Log.d（STORAGE_MNT，FAILED）; 
} 
 
} else {
日志.d（STORAGE，Patch file not found）; 
} 
} 
 
 
 
} 
  

我收到以下输出：
FILE：filePath存在
SUCCESSFULLY QUEUED / p>

但是，OnObbStateChangeListener 中的内容没有被调用，我从自定义视图中调用此函数，并在Nexus 4 / KitKat上进行测试。 >

可能是这种行为的原因？

解决方案

似乎有与KitKat一起引入的OBB安装错误，目前还没有解决方法呃它应该用下一个增量更新来修复。

I have created an encrypted .obb file using the jobb tool. I use the following code to mount the obb file:

    public void mountExpansion() {
    final StorageManager storageManager  = (StorageManager) getContext()
        .getSystemService(Context.STORAGE_SERVICE);


    String packageName = "name.of.the.package";
    String filePath = Environment.getExternalStorageDirectory()
            + "/Android/obb/" + packageName + "/" + "main."
            + version + "." + packageName + ".obb";
    final File mainFile = new File(filePath);
    if (mainFile.exists()) {
        Log.d("STORAGE", "FILE: " + filePath + " Exists");
    } else {
        Log.d("STORAGE", "FILE: " + filePath + " DOESNT EXIST");
    }

    String key = "thisIsMyPassword";
    if (!storageManager.isObbMounted(mainFile.getAbsolutePath())) {
        if (mainFile.exists()) {
            if(storageManager.mountObb(mainFile.getAbsolutePath(), key,
                    new OnObbStateChangeListener() {
                        @Override
                        public void onObbStateChange(String path, int state) {
                            super.onObbStateChange(path, state);
                            Log.d("PATH = ",path);
                            Log.d("STATE = ", state+"");
                            expansionFilePath = storageManager.getMountedObbPath(path);
                            if (state == OnObbStateChangeListener.MOUNTED) {
                                expansionFilePath = storageManager
                                        .getMountedObbPath(path);
                                Log.d("STORAGE","-->MOUNTED");
                            }
                            else {
                                Log.d("##", "Path: " + path + "; state: " + state);
                            }
                        }
                    }))
            {
                Log.d("STORAGE_MNT","SUCCESSFULLY QUEUED");
            }
            else
            {
                Log.d("STORAGE_MNT","FAILED");
            }

        } else {
            Log.d("STORAGE", "Patch file not found");
        }
    }



}

I am getting the following output:FILE: filePath ExistsSUCCESSFULLY QUEUED

But nothing inside onObbStateChangeListener is getting called. I am calling this function from a custom view and testing this on Nexus 4/ KitKat.

What could be the reason for this behaviour?

解决方案

There seems to be a bug with OBB mounting that was introduced with KitKat. Currently no workarounds are known however it should be fixed with the next incremental update.

http://code.google.com/p/android/issues/detail?id=61881

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