相关疑难解决方法(0)

我想做这样的事情:

Window.addWindowClosingHandler(new Window.ClosingHandler() {

    @Override
    public void onWindowClosing(ClosingEvent event) {
        event.setMessage("Really?");

        // If user clicks 'ok' in the dialog, execute code below. Else skip the code and return to window.

        // CODE that does stuff goes here.
    }
});

如何从对话框中捕获输入？