Android Open Source - filemanager File Sort Utils

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Back to project page filemanager.

License

The source code is released under:

MIT License

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Java Source Code

package com.binkery.app.filemanager.utils;
/*  w  ww .j a v a2s  .c  o m*/
import java.io.File;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class FileSortUtils {

  public static List<File> list(File file, Comparator<File> comparator) {
    File[] files = file.listFiles();
    List<File> list = new ArrayList<File>();
    if (files == null) {
      return list;
    }
    for (File f : files) {
      list.add(f);
    }
    Collections.sort(list, comparator);
    return list;
  }

  public static List<File> list(String path, Comparator<File> comparator) {
    File file = new File(path);
    return list(file, comparator);
  }

  public static List<File> list(File file) {
    return list(file, DEFAULT);
  }

  public static List<File> list(String path) {
    File file = new File(path);
    return list(file, DEFAULT);
  }

  public static final Comparator<File> DEFAULT = new Comparator<File>() {
    @Override
    public int compare(File f1, File f2) {
      if (f1.isDirectory() && f2.isFile())
        return -1;
      if (f1.isFile() && f2.isDirectory())
        return 1;
      return f1.getName().compareTo(f2.getName());
    }
  };

  public static final Comparator<File> FILE_SIZE = new Comparator<File>() {
    @Override
    public int compare(File f1, File f2) {
      if (f1.isDirectory() && f2.isFile()) {
        return -1;
      }
      if (f1.isFile() && f2.isDirectory()) {
        return 1;
      }
      return f1.length() > f2.length() ? -1 : 1;
    }
  };

}

Java Source Code List