Android™

Get Response Header for Method that does not Return HttpResponse Object

Demonstrates how to get the response header and individual response header fields for a method that does not return an HTTP response object. (If a method returns an HHTTP response object, then the response header information should be obtained from the response object.) 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;

    //  This example requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    CkHttp http = new CkHttp();

    String strHtml = http.quickGetStr("https://www.duckduckgo.com/");
    if (http.get_LastMethodSuccess() == false) {
        Log.i(TAG, http.lastErrorText());
        return;
        }

    Log.i(TAG, http.lastResponseHeader());

    //  Here's a sample HTTP response header:

    //  Server: nginx
    //  Date: Wed, 30 Sep 2020 13:13:02 GMT
    //  Content-Type: text/html; charset=UTF-8
    //  Transfer-Encoding: chunked
    //  Connection: keep-alive
    //  Vary: Accept-Encoding
    //  ETag: W/"5f7371f4-1683"
    //  Strict-Transport-Security: max-age=31536000
    //  X-Frame-Options: SAMEORIGIN
    //  Content-Security-Policy: default-src https: blob: data: 'unsafe-inline' 'unsafe-eval'; frame-ancestors 'self'
    //  X-XSS-Protection: 1;mode=block
    //  X-Content-Type-Options: nosniff
    //  Referrer-Policy: origin
    //  Expect-CT: max-age=0
    //  Expires: Wed, 30 Sep 2020 13:13:01 GMT
    //  Cache-Control: no-cache
    //  Content-Encoding: gzip

    //  We can load it into a Chilkat MIME object to get header field values:
    CkMime mime = new CkMime();

    success = mime.LoadMime(http.lastResponseHeader());
    if (success == false) {
        Log.i(TAG, mime.lastErrorText());
        return;
        }

    //  Get MIME header field values using Chilkat MIME...
    Log.i(TAG, "----");
    Log.i(TAG, "ETag: " + mime.getHeaderField("ETag"));

  }

  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."
  }
}