Android™

Serialize MIME to BinData

Demonstrates the Chilkat Mime.GetMimeBd method, which serializes the complete MIME entity and appends its bytes to a BinData. The only argument is the BinData; existing bytes are preserved.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: This is the byte-exact serializer — the right choice when the MIME carries binary content such as an image or an 8-bit-encoded part, where routing the output through a text string could corrupt it. The result is a faithful byte stream you can write to a file, transmit, or hash. It pairs with LoadMimeBd for lossless round-tripping of binary MIME.

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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);

    boolean success = false;

    //  Demonstrates the Mime.GetMimeBd method, which serializes the complete MIME entity and appends
    //  its bytes to a BinData.  The only argument is the BinData.  Use this when arbitrary binary body
    //  bytes must not pass through a text string.

    CkMime mime = new CkMime();

    success = mime.SetBodyFromFile("qa_data/photo.jpg");
    if (success == false) {
        Log.i(TAG, mime.lastErrorText());
        return;
        }

    //  Append the serialized MIME bytes to a BinData.  Existing bytes are preserved.
    CkBinData bd = new CkBinData();
    success = mime.GetMimeBd(bd);
    if (success == false) {
        Log.i(TAG, mime.lastErrorText());
        return;
        }

    Log.i(TAG, "Serialized " + String.valueOf(bd.get_NumBytes()) + " bytes.");

  }

  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."
  }
}