Create an output file from raw resources. : File « File « Android






  1. Android
  2. File
  3. File

Create an output file from raw resources.

    
//package ca.chaves.familyBrowser.helpers;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import android.content.Context;
import android.content.res.Resources;
import android.util.Log;

/**
 * This class is our utility belt. It contains all static functions which do not
 * fit anywhere else.
 * 
 * @author "David Chaves <david@chaves.ca>"
 */
class Utils {

  protected static final String TAG = Utils.class.getSimpleName();

  /**
   * Create an output file from raw resources.
   * 
   * @param outputFile
   * @param context
   * @param inputRawResources
   * @throws IOException
   */
  public static void createFile(final String outputFile,
      final Context context, final Integer[] inputRawResources)
      throws IOException {

    final OutputStream outputStream = new FileOutputStream(outputFile);

    final Resources resources = context.getResources();
    final byte[] largeBuffer = new byte[1024 * 4];
    int totalBytes = 0;
    int bytesRead = 0;

    for (Integer resource : inputRawResources) {
      final InputStream inputStream = resources.openRawResource(resource
          .intValue());
      while ((bytesRead = inputStream.read(largeBuffer)) > 0) {
        if (largeBuffer.length == bytesRead) {
          outputStream.write(largeBuffer);
        } else {
          final byte[] shortBuffer = new byte[bytesRead];
          System.arraycopy(largeBuffer, 0, shortBuffer, 0, bytesRead);
          outputStream.write(shortBuffer);
        }
        totalBytes += bytesRead;
      }
      inputStream.close();
    }

    outputStream.flush();
    outputStream.close();
  }
}








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