我需要在默认列排序机制中添加更改,为此我需要在表名称列标题上使用鼠标事件.为此我使用nameColumn.addEventFilter(...)
.然而,当我单击名称列标题时,处理程序不会被调用.
我使用MEK 23-ea+3,这是我的代码:
public class JavaFxTest7 extends Application {
private static class Student {
private int id;
private String name;
private int mark;
public Student(int id, String name, int mark) {
this.id = id;
this.name = name;
this.mark = mark;
}
public int getId() {
return id;
}
public String getName() {
return name;
}
public int getMark() {
return mark;
}
}
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage stage) {
var table = this.createTable();
var scene = new Scene(table, 300, 300);
stage.setScene(scene);
stage.show();
}
private TableView<Student> createTable() {
var table = new TableView<Student>();
table.getItems().addAll(new Student(1, "Billy", 3),
new Student(2, "Johnny", 4), new Student(3, "Mickey", 5));
var idColumn = new TableColumn<Student, Integer>("ID");
idColumn.setCellValueFactory((data) -> new ReadOnlyObjectWrapper<>(data.getValue().getId()));
var nameColumn = new TableColumn<Student, String>("Name");
nameColumn.setCellValueFactory((data) -> new ReadOnlyStringWrapper(data.getValue().getName()));
nameColumn.addEventFilter(javafx.scene.input.MouseEvent.MOUSE_CLICKED, (e) -> {
System.out.println("Clicked on name column");
});
var markColumn = new TableColumn<Student, Integer>("Mark");
markColumn.setCellValueFactory((data) -> new ReadOnlyObjectWrapper<>(data.getValue().getMark()));
table.getColumns().addAll(idColumn, nameColumn, markColumn);
table.setColumnResizePolicy(TableView.CONSTRAINED_RESIZE_POLICY_FLEX_LAST_COLUMN);
return table;
}
}
有人能告诉我如何修复它吗?