TextField f = new TextField();
Button b = new Button("Save");
b.setClickShortcut(KeyCode.ENTER); // For quick saving from text field itself
TextArea longText = new TextArea(); // "Enter" is garbled here
热使快捷方式只在从文本字段中工作？
使用焦点和模糊侦听器删除和添加快捷键：
f.addFocusListener(new FocusListener() {
@Override
public void focus(FocusEvent event) {
b.setClickShortcut(KeyCode.ENTER);
}
});
f.addBlurListener(new BlurListener() {
@Override
public void blur(BlurEvent event) {
b.removeClickShortcut();
}
});
较新版本的Vaadin需要以下代码，因为addListener（）现在已弃用。
f.addFocusListener(new FocusListener() {
private static final long serialVersionUID = -6733373447805994139L;
@Override
public void focus(FocusEvent event) {
b.setClickShortcut(KeyCode.ENTER);
}
});
f.addBlurListener(new BlurListener() {
private static final long serialVersionUID = -3673311830300629513L;
@Override
public void blur(BlurEvent event) {
b.removeClickShortcut();
}
});
谈到Vaadin 14，我在寻找答案，对我来说，这很有效
Button search = new Button("Search");
search.addClickShortcut(Key.ENTER);
