public void onMoveStart(MapMoveStartEvent e) {
textBox.setText(textBox.getText() + "onMoveStart()");
}
};
map.addMapMoveStartHandler(h);
removeHandlerButton.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
map.removeMapMoveStartHandler(h);
// removeRowFromTable(nextListenerId);
}
});