File Filtering

File Filtering

How to retrieve file with particular extension

package com.example.gridviewexample;

import java.io.File;

import java.io.FilenameFilter;

public class MyFileFilter implements FilenameFilter{

    @Override

    public boolean accept(File dir, String filename) {

       

        return (filename.endsWith(".jpeg") || filename.endsWith(".jpg") || filename.endsWith(".png")) ;

    }

}

How to Apply File Filter

strImagFileList = new ArrayList<String>();
            for (int i = 0; i < alFile.size(); i++) {
                File f = new File(alFile.get(i));
                if (new MyFileFilter().accept(f, f.getName())) {
                    strImagFileList.add(f.getAbsolutePath());
                }
            }