Android™

Get the LastErrorText for an Asynchronous Method Call

See more Async Examples

Demonstrates how to get the LastErrorText information for a Chilkat method called asynchronously. 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.

    CkSocket socket = new CkSocket();

    // The Async call simply creates the task.  The "Connect" method has not yet been called.
    int maxWaitMs = 5000;
    // Let's intentionally cause this connect to fail by giving it an invalid domain..
    CkTask task = socket.ConnectAsync("amazonbladflakjsdflksadjf.com",443,true,maxWaitMs);
    if (socket.get_LastMethodSuccess() == false) {
        Log.i(TAG, socket.lastErrorText());
        return;
        }

    // Start the background thread to run the task.
    success = task.Run();
    if (!success) {
        Log.i(TAG, task.lastErrorText());

        return;
        }

    // The application is now free to do anything else

    // For this example, we'll simply sleep and periodically
    // check to see if the Socket Connect if finished.
    while (task.get_Finished() != true) {
        // Sleep 1 ms.
        task.SleepMs(1);
        }

    // If the task completed, it means the method (in this case the Connect method) was called and returned success or failure.
    if (task.get_StatusInt() != 7) {
        Log.i(TAG, "Task did not complete.");
        Log.i(TAG, "task status: " + task.status());

        return;
        }

    // Get the success/failure of the Connect
    // (This is the return value of the Connect method had it been called synchronously)
    success = task.GetResultBool();
    if (success == false) {
        // Get the LastErrorText for the Connect method call.
        // Had we called Connect synchronously, we would've simply accessed the socket object's LastErrorText property.
        // Instead, we get the task object's ResultErrorText.
        Log.i(TAG, task.resultErrorText());
        }
    else {
        Log.i(TAG, "Connect succeeded.");
        }


  }

  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."
  }
}