DialogFragmentExample.java

public class YesNoDialog extends DialogFragment {

    String message;
    String title;
    String yesText;
    String noText;
    /* The activity that creates an instance of this dialog fragment must
     * implement this interface in order to receive event callbacks.
     * Each method passes the DialogFragment in case the host needs to query it. */
    public interface YesNoListener {
        public void onYesClick(DialogFragment dialog);
        public void onNoClick(DialogFragment dialog);
    }

    // Use this instance of the interface to deliver action events
    YesNoListener mListener;

    // Override the Fragment.onAttach() method to instantiate the YesNoListener
    //    @Override
        public void onAttach(Activity activity) {
            super.onAttach(activity);
            // Verify that the host activity implements the callback interface
            try {
                // Instantiate the YesNoListener so we can send events to the host
                mListener = (YesNoListener) activity;
            } catch (ClassCastException e) {
                // The activity doesn't implement the interface, throw exception
                throw new ClassCastException(activity.toString()
                        + " must implement YesNoListener");
            }
        }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {


        // Get the bundle arguements.
        Bundle bundle = this.getArguments();
        this.message = bundle.getString("message");
        this.title = bundle.getString("title");
        this.yesText = bundle.getString("yesText");
        this.noText = bundle.getString("noText");

        // Build the dialog and set up the button click handlers
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        builder.setMessage(this.message)
                .setPositiveButton(this.yesText, new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        // Send the positive button event back to the host activity
                        mListener.onYesClick(YesNoDialog.this);
                    }
                })
                .setNegativeButton(this.noText, new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        // Send the negative button event back to the host activity
                        mListener.onNoClick(YesNoDialog.this);
                    }
                });
        return builder.create();
    }
    }