Android™

Compute CRC32 of a File

Calculates the CRC32 of a file's contents and returns the 32-bit CRC as a hex string. Android™

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    CkZipCrc zipCrc = new CkZipCrc();
    // Use a relative for absolute path to the file..
    int crc = zipCrc.FileCrc("qa_data/hamlet.xml");
    String hexStr = zipCrc.toHex(crc);
    Log.i(TAG, hexStr);

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}