import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

public class TestActivity extends Activity {
	private AlertDialog.Builder dlgBuilder;
	private LayoutInflater inflater;

	private View dlgLayout;
	private TextView dlgText;
	private int count;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        inflater = LayoutInflater.from(TestActivity.this);
        dlgLayout = inflater.inflate(R.layout.dialog_layout, (ViewGroup)findViewById(R.id.dialog_linearLayout));
        dlgText = (TextView)findViewById(R.id.dialog_text);
        count = 0;
        dlgBuilder = new AlertDialog.Builder(this);
        dlgBuilder.setView(dlgLayout);
        setDialog(dlgBuilder);
    }

    @Override
    public void onStart() {
    	super.onStart();
    	dlgBuilder.show();
    }

    private void setDialog(AlertDialog.Builder dlgBuilder) {
    	dlgBuilder.setCancelable(false);
    	dlgBuilder.setPositiveButton("changeText", new DialogInterface.OnClickListener() {
    				public void onClick(DialogInterface dialog, int id) {
    					switch (count) {
						case 0:
							dlgText.setText("now loading...");
    						count = 1;
							break;
						case 1:
							dlgText.setText("completed");
    						count = 2;
							break;
						case 2:
							dlgText.setText("please wait...");
    						count = 0;
							break;
						default:
							break;
						}
    				}
    		});
    }
}