Android Question Time the folder

T201016

Active Member
Licensed User
Hi!
Can I recover data such as the date / time I created any folder in Java?
Any suggestions? :)
 

T201016

Active Member
Licensed User
Hello,
thanks for taking the moment :)

I have written a small piece of code which does a recursive search within all subdirectories and returns
the latest modification date. It does a deep search,
so you may not want to run it on the root directory or so.
Here is the code (I have not tested):

B4X:
private static long getLatestModifiedDate(File dir) {
    File[] files = dir.listFiles();
    long latestDate = 0;
    for (File file : files) {
        long fileModifiedDate = file.isDirectory()
                ? getLatestModifiedDate(file) : file.lastModified();
        if (fileModifiedDate > latestDate) {
            latestDate = fileModifiedDate;
        }
    }
    return Math.max(latestDate, dir.lastModified());
}
Or

B4X:
import java.io.File;
import java.io.IOException;
import java.util.Date;
import java.util.concurrent.TimeUnit;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

protected Date folderCreatedDate(String folderName) {
          long date = 0;
          File fl = new File(folderName);
          if (fl.isDirectory())
            if (fl.exists())
               date = fl.lastModified();
          return new Date(date);
   }
  
  
protected long getFolderSize(File folder){                 
    long foldersize = 0;
 
    File[] filelist = folder.listFiles();
    for(int i = 0; i < filelist.length; i++)
     {
       if(filelist[i].isDirectory())
         foldersize += getFolderSize(filelist[i]);
        else
           foldersize += filelist[i].length();
     }
  return foldersize;
}


protected Date folderCreatedDate(String folderName) {
          long date = 0;
          File fl = new File(folderName);
          if (fl.isDirectory())
            if (fl.exists())
               date = fl.lastModified();
          return new Date(date);
   }
the problem is how to properly apply this piece of code in B4A (If Java ... End If)?
 

DonManfred

Expert
Licensed User

T201016

Active Member
Licensed User
Well, you're basically right. But I have already solved the problem.
Thank's DonManfred ;)
 
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