java - 按下回车键，提交输入并移动到另一个项目

Question

按下回车键，如何提交输入并移动到另一个项目，例如TextField, DatePicker, Button 等?

Answer 1

只需使用 onAction 事件处理程序并调用 requestFocus(...) 即可在用户提交操作时聚焦下一个控件:

@FXML TextField fName;
@FXML TextField lName;
@FXML DatePicker birthDay;
@FXML TextField address;
@FXML TextField city;
@FXML TextField telephoneNmbr;
@FXML TextField email;
@FXML Button closeBtn;
@FXML Button okBtn;

public void initialize(){

    fName.setOnAction(e -> lName.requestFocus());
    lName.setOnAction(e -> birthDay.requestFocus());
    birthDay.setOnAction(e -> address.requestFocus());

    // etc...

    okBtn.setOnAction(e -> {
        // whatever you need to do when OK is pressed...
    });
}

如果需要，您可以减少代码量:

Control[] focusOrder = new Control[] {
    fName, lName, birthDay, address, city, 
    telephoneNmbr, email, closeBtn, okBtn};

for (int i = 0 ; i < focusOrder-1 ; i++) {
    Control nextControl = focusOrder[i+1];
    focusOrder[i].addEventHandler(ActionEvent.ACTION, e -> nextControl.requestFocus());
}

okBtn.setOnAction(...);

请注意，如果按钮具有键盘焦点，空格键通常与触发按钮上的操作相关联。您可以将该按钮设置为“默认按钮”，这将更改其外观并使其响应(半全局)回车键。