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(Android™) Async Progress Info Log

Demonstrates checking for progress info updates when running a task asynchronously.

Chilkat Android™ Downloads

Android™ Java Libraries

Android C/C++ Libraries

// 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);

    // All Chilkat classes can be unlocked at once at the beginning of a program
    // by calling UnlockBundle.  It requires a Bundle unlock code.
    CkGlobal chilkatGlob = new CkGlobal();
    boolean success = chilkatGlob.UnlockBundle("Anything for 30-day trial.");
    if (success != true) {
        Log.i(TAG, chilkatGlob.lastErrorText());
        return;
        }

    // The mailman object is used for sending and receiving email.
    CkMailMan mailman = new CkMailMan();

    // Set the SMTP server and any required settings.
    mailman.put_SmtpHost("smtp.mymailserver.com");
    mailman.put_SmtpUsername("myLogin");
    mailman.put_SmtpPassword("myPassword");
    mailman.put_StartTLS(true);

    // Create a new email object
    CkEmail email = new CkEmail();

    email.put_Subject("This is a test");
    email.put_Body("This is a test");
    email.put_From("Chilkat Support <support@chilkatsoft.com>");
    success = email.AddTo("Chilkat Admin","admin@chilkatsoft.com");

    // Call the async version of the SendEmail method to return a task object.
    // The task object is loaded, but is in the Inert state -- meaning it is
    // not yet scheduled to run on Chilkat's background thread pool.
    CkTask task = mailman.SendEmailAsync(email);
    if (mailman.get_LastMethodSuccess() == false) {
        Log.i(TAG, mailman.lastErrorText());
        return;
        }

    // Before starting the task, tell it to keep an in-memory log of what would've been
    // ProgressInfo event callbacks.
    task.put_KeepProgressLog(true);

    // Schedule the task for running on the thread pool.  This changes the task's state
    // from Inert to Live.
    success = task.Run();
    if (success != true) {
        Log.i(TAG, task.lastErrorText());

        return;
        }

    // The application is now free to do anything else
    // while the email is being sent.

    // For this example, we'll simply sleep and periodically
    // check to see if the SendEmail if finished.  While checking
    // however, we'll report on the progress.
    int curPctDone = 0;
    String name;
    String value;

    while (task.get_Finished() != true) {

        if (task.get_PercentDone() != curPctDone) {
            curPctDone = task.get_PercentDone();
            Log.i(TAG, String.valueOf(curPctDone) + " percent done");
            }

        // Check the progress info log.
        // Emit any log entries..
        while ((task.get_ProgressLogSize() > 0)) {
            // Get the 1st entry, emit it, and then remove it..
            name = task.progressInfoName(0);
            value = task.progressInfoValue(0);
            Log.i(TAG, name + ": " + value);
            task.RemoveProgressInfo(0);
            }

        // Sleep 100 ms.
        task.SleepMs(100);

        }

    // Just in case there are any remaining entries...
    while ((task.get_ProgressLogSize() > 0)) {
        // Get the 1st entry, emit it, and then remove it..
        name = task.progressInfoName(0);
        value = task.progressInfoValue(0);
        Log.i(TAG, name + ": " + value);
        task.RemoveProgressInfo(0);
        }

    // A finished task could be one that was canceled, aborted, or truly finished.  

    // If the task was "canceled", it was canceled prior to actually starting.  This could
    // happen if the task was canceled while waiting in a thread pool queue to be scheduled by Chilkat's
    // background thread pool scheduler.  

    // If the task was "aborted", it indicates that it was canceled while running in a background thread.  
    // The ResultErrorText will likely indicate that the task was aborted.

    // If the task "completed", then it ran to completion, but the actual success/failure of the method
    // is determined by the result obtained via a GetResult* method.  (A "completed" task will
    // have a StatusInt equal to 7.   If the task finished, but was not completed, then it must've
    // been aborted or canceled:
    if (task.get_StatusInt() != 7) {
        Log.i(TAG, "Task did not complete.");
        Log.i(TAG, "task status: " + task.status());

        return;
        }

    // The SendEmail method returns a boolean.  Therefore, after the task is finished,
    // we can get the boolean result by calling GetResultBool.  This is the return value had
    // we called SendEmail synchronously.
    success = task.GetResultBool();
    if (success != true) {
        // The task's ResultErrorText contains what would have been in the LastErrorText property had
        // the SendEmail method been called synchronously.
        Log.i(TAG, task.resultErrorText());
        }
    else {
        Log.i(TAG, "Email sent asynchronously.");
        }

    success = mailman.CloseSmtpConnection();
    if (success != true) {
        Log.i(TAG, "Connection to SMTP server not closed cleanly.");

        }


  }

  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."
  }
}

 

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