Question

I created a listview with diff. activity to each items. When the user click on “clock in” I would like to grab the current time/date and send that data to the webserver in quickest way possible (without going through 2 step process to confirm). This will be for secondActivity class.

UPDATE* I am planning to add a password to the time/date within the phone so the user cant change them. I prefer current time/date within the phone instead of server time because if theres no signal/reception theres no way to clock in. How can I be able to grab the current time/date within the phone?

Customer.java

import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class Customer extends ListActivity
{
    TextView selection;
    String[] items = { "Start Trip", "Clock in", "Customer Svc", 
            "Independent Inspection", "Pick Up", "Log Out" };

    @Override
    public void onCreate(Bundle icicle)
    {
        super.onCreate(icicle);
        setContentView(R.layout.main);
        setListAdapter(new ArrayAdapter<String>(
                this, android.R.layout.simple_list_item_1, items));
        selection = (TextView) findViewById(R.id.selection);
    }

private static final int ACTIVITY_0 = 0;
private static final int ACTIVITY_1 = 1;
private static final int ACTIVITY_2 = 2;

@Override
protected void onListItemClick(ListView l, View v, int position, long id)
{
    super.onListItemClick(l, v, position, id);
    final Intent intent = new Intent();
    // Set up different intents based on the item clicked: 
    switch (position)
    {
        case ACTIVITY_0:
            intent.setClass(this, com.company.merrill.IntentIntegrator.class);
            break;
        case ACTIVITY_1:
            intent.setClass(this, com.company.merrill.SecondActivity.class);
            break;
        case ACTIVITY_2:
            intent.setClass(this, com.company.merrill.ThirdActivity.class);
            break;
        default:
            break;
    }
    // Pass the item position as the requestCode parameter, so on the `Activity`'s
    // return you can examine it, and determine which activity were you in prior. 
    startActivityForResult(intent, position);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent)
{
    super.onActivityResult(requestCode, resultCode, intent);
    if (resultCode == RESULT_OK)
    {
        // Perform different actions based on from which activity is
        // the application returning:
        switch (requestCode)
        {
            case ACTIVITY_0:
                // contents contains whatever the code was
                String contents = intent.getStringExtra("SCAN_RESULT");

                // Format contains the type of code i.e. UPC, EAN, QRCode etc...
                String format = intent.getStringExtra("SCAN_RESULT_FORMAT");

                // Handle successful scan. In this example 
                // I just put the results into the TextView
                resultsTxt.setText(format + "\n" + contents);
                break;
            case ACTIVITY_1:
                // TODO: handle the return of the SecondActivity
                break;
            case ACTIVITY_2:
                // TODO: handle the return of the ThirdActivity
                break;
            default:
                break;
        }
    }
    else if (resultCode == RESULT_CANCELED)
    {
        // Handle cancel. If the user presses 'back' 
        // before a code is scanned.
        resultsTxt.setText("Canceled");
    }
}

Answer 1

the quickest way would be creating a new thread and opening a connection to the server.

Take a look to the code:

new Thread(new Runnable() {

    public void run() {

        URL url = new URL("http://www.example.com/?data="+System.currentTimeMillis());

        HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();

        //if there is no need to read the content then we close the connection

        urlConnection.disconnect();
    }
}).start();

Then on your server-side you’ve to read the $_GET[‘data’] variable if you’re working with php.

Please consider that this solution is not ok for different timezones. I would probably rely on server-side date.