Android™
SendGrid HTML Email with Embedded Images

Demonstrates how to send an HTML email with embedded images using SendGrid.
Chilkat Android™ Downloads

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

    CkHttpRequest req = new CkHttpRequest();
    CkHttp http = new CkHttp();

    // First.. load a JPG file and build an HTML img tag with the JPG data inline encoded.
    // Our HTML img tag will look like this:
    // <img src="data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEA3ADcAA..." alt="" style="border-width:0px;" />
    CkBinData bdJpg = new CkBinData();
    success = bdJpg.LoadFile("qa_data/jpg/starfish.jpg");
    if (success == false) {
        Log.i(TAG, "Failed to load JPG file.");
        return;
        }

    // Note: HTML containing embedded base64 image data may not be visible in all email clients.
    // For example, GMail might not display the image, but viewing in Outlook might be OK.
    CkStringBuilder sbHtml = new CkStringBuilder();
    sbHtml.Append("<html><body><b>This is a test<b><br /><img src=\"data:image/jpeg;base64,");
    // Append the base64 image data to sbHtml.
    bdJpg.GetEncodedSb("base64",sbHtml);
    sbHtml.Append("\" alt=\"\" style=\"border-width:0px;\" /></body></html>");

    CkJsonObject json = new CkJsonObject();
    json.UpdateString("personalizations[0].to[0].email","matt@chilkat.io");
    json.UpdateString("personalizations[0].to[0].name","Matt");
    json.UpdateString("from.email","admin@chilkatsoft.com");
    json.UpdateString("subject","Test HTML email with images");
    json.UpdateString("content[0].type","text/html");
    json.UpdateSb("content[0].value",sbHtml);

    http.put_AuthToken("SENDGRID_API_KEY");

    CkHttpResponse resp = new CkHttpResponse();
    success = http.HttpJson("POST","https://api.sendgrid.com/v3/mail/send",json,"application/json",resp);
    if (success == false) {
        Log.i(TAG, http.lastErrorText());
        return;
        }

    Log.i(TAG, "response status code: " + String.valueOf(resp.get_StatusCode()));
    // Display the response.
    // If successful, the response code is 202 and the response body string is empty.
    // (The response body string may also be empty for error response codes.)
    Log.i(TAG, resp.bodyStr());

  }

  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."
  }
}