android, How to rename a file?

Question

In my application, I need to record video. Before start of recording in I\'m assigning a name and directory to it. After recording is finished user has ability to rename his

Answer 1

/**
 * ReName any file
 * @param oldName
 * @param newName
 */
public static void renameFile(String oldName,String newName){
    File dir = Environment.getExternalStorageDirectory();
    if(dir.exists()){
        File from = new File(dir,oldName);
        File to = new File(dir,newName);
         if(from.exists())
            from.renameTo(to);
    }
}