Android™

Get a Header Field of a Related Item

Demonstrates the Chilkat Email.GetRelatedHeader method, which returns the value of a named header field of a related item. The first argument is the zero-based related-item index and the second is the MIME header-field name. This example reads the Content-Type header of a related style sheet.

Background: Each related item is a MIME part with its own header block. Where GetRelatedAttr extracts a single named parameter from a header, GetRelatedHeader returns the entire value of a header field — for example the full Content-Type or Content-Location line — which is handy for inspecting exactly how an embedded resource is described.

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// 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);

    //  Demonstrates the GetRelatedHeader method, which returns the value of a header field (by
    //  name) of a related item.  The first argument is the zero-based related-item index and the
    //  second is the MIME header-field name.

    CkEmail email = new CkEmail();
    email.put_Subject("GetRelatedHeader example");

    //  Set an HTML body and add a related style sheet (index 0).
    email.SetHtmlBody("<html><head><link rel=\"stylesheet\" href=\"styles.css\"/></head><body>Styled.</body></html>");
    email.AddRelatedString2("styles.css","body { color: navy; }","utf-8");

    //  Get the Content-Type header of the first related item (index 0).
    String ct = email.getRelatedHeader(0,"Content-Type");
    Log.i(TAG, "Related item 0 Content-Type: " + ct);

  }

  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."
  }
}