CODEWITHSUNDEEP
javaswingjfilechooserfilefilter
kunal18
kunal18

Reputation: 1926

FileFilter for JFileChooser doesn't work

Below is my code to open a JFileChooser on the click of a button. I have created a filter to allow the selection of only .jpg files, but my code doesn't work as expected. All types of files are shown in JFileChooser diaog box. Part of code:

MyFileFilter filter;

fPhoto=new JFileChooser();
fPhoto.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);        
fPhoto.setFileFilter(filter);

MyFileFilter class:

public class MyFileFilter extends javax.swing.filechooser.FileFilter{

    public boolean accept(File f){

    return f.isDirectory()||(f.isFile()&&f.getName().toLowerCase().endsWith(".jpg"));
    }

    public String getDescription(){

    return ".jpg files";
    }
}

Upvotes: 1

Views: 1306

Answers (2)

Nidhish Krishnan
Nidhish Krishnan

Reputation: 20741

If you want browse specified files, Take a look at this code 

 try
        {
        JFileChooser fc = new JFileChooser();
        fc.setAcceptAllFileFilterUsed(false);
        fc.setFileFilter(new FileFilter() {

            @Override
            public boolean accept(File file) {
               return (file.isDirectory()||file.getName().endsWith(".JPG")||file.getName().endsWith(".jpg"));
            }

            @Override
            public String getDescription() {
                return "Multi-Video Files";
            }
        });
        File file;
        if(JFileChooser.APPROVE_OPTION==fc.showDialog(null, "Select Files"))   
        {
           File file = fc.getSelectedFile();  //HERE YOU WILL GET THE SELECTED FILE 
        }
        }catch(Exception e){System.out.println("error");
        }

If you want to browse only directories then

JFileChooser fc = new JFileChooser();
     File file;
     fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);

     if(JFileChooser.APPROVE_OPTION==fc.showDialog(null, "Select"))   
     {
      File file = fc.getSelectedFile();  //HERE YOU WILL GET THE SELECTED DIRECTORY PATH 
     }

Upvotes: 3

Reimeus
Reimeus

Reputation: 159754

You need to instantiate your filter. Having a null FileFilter will result in no file types being filtered out:

MyFileFilter filter = new MyFileFilter();

Upvotes: 5

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