Hi every body, 
I'm trying to do an apex class and VF page to explore folders and files from google drive. I need help, I make this code the only think I have it'just and redirection page to google drive.

public class MyClass {
private String code;

public boolean val {
    get;
    set;
    }

public blob file {
    get;
    set;
    }

public String filetype {
    get;
    set;
    }
   
public String filename {
    get;
    set;
    }

public Id ContactId=ApexPages.currentPage().getParameters().get('Id');


public sharingClass() {

 }

public PageReference explor() {
//refreshtoken ='GDriveAPI/drive/v3/files/';

//Getting access token from google
HttpRequest req = new HttpRequest();
req.setMethod('POST');
req.setEndpoint('https://www.googleapis.com/oauth2/v4/token');
req.setHeader('content-type', 'application/x-www-form-urlencoded');
req.setTimeout(60 * 1000);
Http h = new Http();
String resp;
HttpResponse res = h.send(req);
resp = res.getBody();
 
System.debug(ContactId);
String boundary = '----------9889464542212';
String delimiter = '\r\n--' + boundary + '\r\n';
String close_delim = '\r\n--' + boundary + '--';

//PageReference returnPage = new PageReference('/lightning/r/Contact/'+ContactId+'/view?0.source=alohaHeader');  
PageReference returnPage = new PageReference('https://drive.google.com/drive/');
return returnPage;
    }
      
    public static void basicAuthCallout(){
     HttpRequest req = new HttpRequest();
     req.setEndpoint('callout:GDriveAPI/drive/v3/files/');
     req.setMethod('GET');
     
     // Specify the required user name and password to access the endpoint
     // As well as the header and header information
 
     String username = '';
     String password = '';
  
     Blob headerValue = Blob.valueOf(username + ':' + password);
     String authorizationHeader = 'Basic ' +
     EncodingUtil.base64Encode(headerValue);
     req.setHeader('Authorization', authorizationHeader);
   
     // Create a new http object to send the request object
     // A response object is generated as a result of the request  
  
     Http http = new Http();
     HTTPResponse res = http.send(req);
     System.debug(res.getBody());
  }
    
}

My Visualforce page, see bellow

<apex:page controller="MyClass" showQuickActionVfHeader="true">

<apex:slds />

<apex:form style="margin-top:5%;margin-left:5%;width:60%">
<apex:pageblock >

<br/>
<br/>
<br/>
<br/>
<apex:inputfile value="{!file}" contentType="{!filetype}" filename="{!filename}" />
<br/>
<br/>
<br/>
<br/>
<apex:commandButton styleClass="myClass" onclick="this.value = 'Drives Folders'" value="Drives Folders" action="{!explor}" />
<br/>
<br/>
<apex:messages styleClass="error" />
<br/>

</apex:pageblock>
    <apex:pageblock >
        <!--Folder="{!basicAuthCallout}"-->
    </apex:pageblock>
</apex:form>
</apex:page>

The result is 
When I click on "Drives folder" It's show the google drive page. But what I want is to show a window like this

In fact a window like where we can a files or folders,
thanks in advanace

I have this error when I try to execute this code Line: 1, Column: 16 Unexpected token '('.
I checked all the parentheses all of the in the code is correct.
 

public class MyId {   
    
	
    public static void show(){ 
        String url='https://drive.google.com/...../';
        system.debug(getId(url)); 
        }
    
    public static String getId(String gdriveUrl){
        String Id = gdriveUrl.remove('https://drive.google.com/.....');
        return Id;
	}

    
 }

 

I need help, I'm trying to create a folder explorer in apex class and visualforce, it's when I want to copy a file in the folder, I can chose the folder or the sub-folder where I want to put my file in salesforce. 

I tri this code bellow, but I have an error  

enter public class selectFolder {
    public List<Account> md{get;set;}
    public selectFolder(ApexPages.StandardController Account) 
    {
        md = new List<Account>();
        md =  [Select Id,Name,(Select Id,name,(Select id, name from ContentFolderMember) 
        From Folder__c)From ContentFolderMember];
         List<Document> documents = [SELECT Id, FolderId, Folder.Name FROM Document 
        WHERE Folder.Name like 'ourLogo%' LIMIT 1];    
      } 
}

The error I have is this 

Select Id,Name,(Select Id,name,(Select id
          ^
ERROR at Row:1:Column:11
No such column 'Name' on entity 'ContentFolderMember'. If you are attempting to use a custom field, be sure to append the '__c' after the custom field name. Please reference your WSDL or the describe call for the appropriate names.

I did some research and I fine some topic talk about ContentDocuments, ContentFolder or ContentDocumentLinks, but I have no idea how it's work.
Thanks in advance.

I have this error when I try to execute this code Line: 1, Column: 16 Unexpected token '('.
I checked all the parentheses all of the in the code is correct.
 

public class MyId {   
    
	
    public static void show(){ 
        String url='https://drive.google.com/...../';
        system.debug(getId(url)); 
        }
    
    public static String getId(String gdriveUrl){
        String Id = gdriveUrl.remove('https://drive.google.com/.....');
        return Id;
	}

    
 }