Copy File and Directory : File « File « Android






  1. Android
  2. File
  3. File

Copy File and Directory

    

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

class Util {

  public static void copyDirectory(File sourceLocation, File targetLocation)
      throws IOException {

    if (sourceLocation.isDirectory()) {
      if (!targetLocation.exists()) {
        targetLocation.mkdirs();
      }

      String[] children = sourceLocation.list();
      for (int i = 0; i < children.length; i++) {
        copyDirectory(new File(sourceLocation, children[i]), new File(
            targetLocation, children[i]));
      }
    } else {

      copyFile(sourceLocation, targetLocation);
    }
  }

  /**
   * @param sourceLocation
   * @param targetLocation
   * @throws FileNotFoundException
   * @throws IOException
   */
  public static void copyFile(File sourceLocation, File targetLocation)
      throws FileNotFoundException, IOException {
    InputStream in = new FileInputStream(sourceLocation);
    OutputStream out = new FileOutputStream(targetLocation);

    // Copy the bits from instream to outstream
    byte[] buf = new byte[1024];
    int len;
    while ((len = in.read(buf)) > 0) {
      out.write(buf, 0, len);
    }
    in.close();
    out.close();
  }

  static public boolean deleteDirectory(File path) {
    if (path.exists()) {
      File[] files = path.listFiles();
      for (int i = 0; i < files.length; i++) {
        if (files[i].isDirectory()) {
          deleteDirectory(files[i]);
        } else {
          files[i].delete();
        }
      }
    }
    return (path.delete());
  }

}








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