deletes a file or recursively deletes directory - Android java.io

Android examples for java.io:Directory

  1. HOME
  2. Android
  3. java.io
  4. Directory

Description

deletes a file or recursively deletes directory

Demo Code

import android.annotation.SuppressLint;
import android.content.ClipDescription;
import android.content.Context;
import android.net.Uri;
import android.os.StatFs;
import android.util.Log;
import android.webkit.URLUtil;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.DateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Locale;

public class Main{

    /**/*w w  w.  java2  s  .  c o m*/
     * deletes a file or recursively deletes directory   
     * @param topFile - the file or directory to delete
     * @throws IOException
     */
    public static void deleteRecursively(File topFile) throws IOException {
        if (topFile.isFile()) {
            if (!topFile.delete()) {
                throw new IOException("Cannot delete file "
                        + topFile.getAbsolutePath());
            }
            return;
        }

        File[] fileArray = topFile.listFiles();
        if (fileArray == null) {
            if (!topFile.delete()) {
                throw new IOException("Cannot delete directory "
                        + topFile.getAbsolutePath());
            }
            return;
        }

        for (File file : fileArray) {
            if (Thread.currentThread().isInterrupted()) {
                break;
            }

            if (file.isFile()) {
                if (!file.delete()) {
                    throw new IOException("Cannot delete file "
                            + file.getAbsolutePath());
                }

                continue;
            }

            if (file.isDirectory()) {
                deleteRecursively(file);
            }

        }
        if (!topFile.delete()) {
            throw new IOException("Cannot delete directory "
                    + topFile.getAbsolutePath());
        }
    }

}

Related Tutorials