MIME Advanced CMS and Compatibility Option Properties

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Demonstrates advanced option properties: CmsOptions (a JSON string of advanced CMS/PKCS #7 signing and validation options), UnwrapExtras (whether UnwrapSecurity adds informative header fields describing removed security layers), and UncommonOptions (an option string for uncommon compatibility requirements).

// 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;

    CkMime mime = new CkMime();
    success = mime.SetBodyFromPlainText("Message body.");
    if (success == false) {
        Log.i(TAG, mime.lastErrorText());
        return;
        }

    //  CmsOptions is a JSON string of advanced CMS/PKCS #7 signing and validation options.  The default
    //  is an empty string, which selects normal behavior.  An empty JSON object {} is also valid.
    mime.put_CmsOptions("{}");

    //  UnwrapExtras controls whether UnwrapSecurity adds informative header fields describing the
    //  security layers it removed.  The default is true.
    mime.put_UnwrapExtras(true);

    //  UncommonOptions is a semicolon-delimited option string for uncommon compatibility requirements.
    //  Normal applications should leave it empty, and it should only be used when directed by support.
    mime.put_UncommonOptions("");

    Log.i(TAG, "CmsOptions = " + mime.cmsOptions());
    Log.i(TAG, "Advanced options configured.");

  }

  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."
  }
}