Question

I need something like a combobox in access in android, i want to choose the customer per name, but in the background the id should be chosen. how to do?

Answer 1

In android comboboxes are called spinner. Nevertheless, gnugu has posted in his blog his own implementation of a combobox. http://www.gnugu.com/node/57

A simple example of an spinner would be the following.
First, edit your XML code with something like this

Spinner android:id="@+id/Spinner01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"

Your java code should include something like this, the options are very intuitive. If you are using eclipse it will suggest you some options

public class SpinnerExample extends Activity {
    private String array_spinner[];
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        // Here come all the options that you wish to show depending on the
        // size of the array.
        array_spinner=new String[5];
        array_spinner[0]="option 1";
        array_spinner[1]="option 2";
        array_spinner[2]="option 3";
        array_spinner[3]="option 4";
        array_spinner[4]="option 5";
        Spinner s = (Spinner) findViewById(R.id.Spinner01);
        ArrayAdapter adapter = new ArrayAdapter(this,
        android.R.layout.simple_spinner_item, array_spinner);
        s.setAdapter(adapter);
    }
}