在谷歌驱动器android中的文件夹内创建一个文件夹 [英] Creating a folder inside a folder in google drive android

问题描述

我想将Google驱动器与我的应用程序集成我已经在Google Developers Console中注册了我的应用程序。我从 https://github.com/googledrive/android-demos 获取了一个示例。我能够在Google驱动器的根文件夹中创建文件，但问题是我无法在现有文件夹内创建文件或文件夹。在这种情况下，我得到了一杯烤面包找不到DriveId，您有权查看此文件吗？即我无法获得driveID

  public class CreateFolderInFolderActivity extends BaseDemoActivity {
 
 @Override 
 public void onConnected（Bundle connectionHint）{
 super.onConnected（connectionHint）; 
 Drive.DriveApi.fetchDriveId（getGoogleApiClient（），EXISTING_FOLDER_ID）
 .setResultCallback（idCallback）; 
} 
 
 final ResultCallback< DriveIdResult> idCallback = new ResultCallback< DriveIdResult>（）{
 @Override 
 public void onResult（DriveIdResult result）{
 if（！result.getStatus（）。isSuccess（））{
 showMessage（result.getStatus（）的toString（））; 
 showMessage（Can not find DriveId。Are you authorized to view this file？）; 
 return; 
} 
 DriveFolder文件夹= Drive.DriveApi 
 .getFolder（getGoogleApiClient（），result.getDriveId（））; 
 MetadataChangeSet changeSet = new MetadataChangeSet.Builder（）
 .setTitle（MyNewFolder）。build（）; 
 folder.createFolder（getGoogleApiClient（），changeSet）
 .setResultCallback（createFolderCallback）; 
} 
}; 
 
 final ResultCallback< DriveFolderResult> createFolderCallback = new 
 ResultCallback< DriveFolderResult>（）{
 $ b $ @Override 
 public void onResult（DriveFolderResult result）{
 if（！result.getStatus（）。isSuccess （））{
 showMessage（尝试创建文件夹时出现问题）; 
 return; 
} 
 showMessage（Folder successfully created）; 
} 
}; 
} 
  

我找不到任何适当的文件。
Plz帮助我在哪里出错或是否需要包含任何其他权限

解决方案

偷看这里：在 createTree（）'方法，在文件夹内创建一个文件夹。

新Google Drive Android API（GDAA）中有3个不同的驱动器ID实体

1. DriveID类型的对象 - 您从方法获得并在代码中使用的对象。
   
2. 从 encodeToString（）获得的字符串并传递给 decodeFromString（） - 用于在应用程序中保存（例如缓存）


3. 从 getResourceId（）到 fetchDriveId（） - 您在文件的html地址中看到的那个。

2和3标识符都是字符串，因此可能会感到困惑。标识符2在检索驱动器ID时（通过decodeFromString（））速度更快。标识符3的检索速度较慢（通过fetchDriveId（）），但如果您需要在其他地方使用您的标识符（例如Apps Script），则标识符3很有用。另请参阅： SO 21800257

I want to integrate Google drive with my app I have registered my app in Google Developers Console. I got a sample from https://github.com/googledrive/android-demos .By this i am able to create a file,folder in Google drive's root folder but the problem is I couldn't create a file or folder inside an existing folder. In such case i got a toast "Cannot find DriveId. Are you authorized to view this file?" ie I cannot get the driveID

public class CreateFolderInFolderActivity extends BaseDemoActivity {

@Override
public void onConnected(Bundle connectionHint) {
    super.onConnected(connectionHint);
    Drive.DriveApi.fetchDriveId(getGoogleApiClient(), EXISTING_FOLDER_ID)
            .setResultCallback(idCallback);
}

final ResultCallback<DriveIdResult> idCallback = new ResultCallback<DriveIdResult>() {
    @Override
    public void onResult(DriveIdResult result) {
        if (!result.getStatus().isSuccess()) {
             showMessage(result.getStatus().toString());
            showMessage("Cannot find DriveId. Are you authorized to view this file?");
            return;
        }
        DriveFolder folder = Drive.DriveApi
                .getFolder(getGoogleApiClient(), result.getDriveId());
        MetadataChangeSet changeSet = new MetadataChangeSet.Builder()
                .setTitle("MyNewFolder").build();
        folder.createFolder(getGoogleApiClient(), changeSet)
                .setResultCallback(createFolderCallback);
    }
};

final ResultCallback<DriveFolderResult> createFolderCallback = new
        ResultCallback<DriveFolderResult>() {

    @Override
    public void onResult(DriveFolderResult result) {
        if (!result.getStatus().isSuccess()) {
            showMessage("Problem while trying to create a folder");
            return;
        }
        showMessage("Folder successfully created");
    }
};
}

I cannot find any proper documentation for this. Plz help me where i am going wrong or Whether I Have to include any other permissions

解决方案

You can take a peek here: in the 'createTree()' method, there is a creation of folder within a folder.

There are 3 different drive ID entities in the new Google Drive Android API (GDAA)

1. the object of type DriveID - the one you get from methods and use in your code
2. a string you get from encodeToString() and pass to decodeFromString() - used to save within the app (caching for instance)
3. a string you get from getResourceId() and pass to fetchDriveId() - the one you see in the html address of a file.

Both 2 and 3 identifiers are strings, so they may be confused. Identifier 2 is faster when retrieving Drive ID (via decodeFromString()). Identifier 3 is slower to retrieve (via fetchDriveId()), but usefull if you need to take your ID elsewhere (Apps Script, for instance).

Please see also: SO 21800257

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