Android™
Android™
Zip an Email's Attachments into One File
See more Email Object Examples
Demonstrates the Chilkat Email.ZipAttachments method, which replaces all of an email's attachments with a single Zip file attachment having the specified filename. The original attachments are removed and packed into the Zip. This example adds two attachments and zips them into one.
Background: Bundling multiple attachments into a single
.zip keeps a message tidy, compresses the payload, and works around recipients or gateways that limit the number of attachments. Note that the filename here (files.zip) names the attachment inside the message — it is not a path on disk. The reverse operation is UnzipAttachments.Chilkat Android™ Downloads
// 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 ZipAttachments method, which replaces all of an email's attachments
// with a single Zip file attachment having the specified filename. The original
// attachments are removed and packed into the Zip.
CkEmail email = new CkEmail();
email.put_Subject("Zip the attachments");
email.AddStringAttachment("a.txt","first attachment");
email.AddStringAttachment("b.txt","second attachment");
Log.i(TAG, "NumAttachments before = " + String.valueOf(email.get_NumAttachments()));
// Replace all attachments with a single Zip attachment named "files.zip".
success = email.ZipAttachments("files.zip");
if (success == false) {
Log.i(TAG, email.lastErrorText());
return true;
}
Log.i(TAG, "NumAttachments after = " + String.valueOf(email.get_NumAttachments()));
}
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."
}
}