效果
代码
代码语言：javascript
复制//表格视图
public class TableViewSample extends Application {
/*
TableView类内置提供了对列数据排序的功能。用户可以通过单击列头来改变数据顺序。
第一次点击将会升序排列，第二次会降序排列，第三次则会取消对该列排序。
默认情况下不会对任何一列进行排序。
*/
private final TableView<Person> table = new TableView<>();
//由于ObservableList对象具有自动追踪其包含元素的改变的功能，所以TableView的内容将会在数据改变时自动更新。
private final ObservableList<Person> data =
FXCollections.observableArrayList(
new Person("Jacob", "Smith", "jacob.smith@example.com"),
new Person("Isabella", "Johnson", "isabella.johnson@example.com"),
new Person("Ethan", "Williams", "ethan.williams@example.com"),
new Person("Emma", "Jones", "emma.jones@example.com"),
new Person("Michael", "Brown", "michael.brown@example.com"));
final HBox hb = new HBox();
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage stage) {
Scene scene = new Scene(new Group());
stage.setTitle("Table View Sample");
stage.setWidth(450);
stage.setHeight(550);
final Label label = new Label("Address Book");
label.setFont(new Font("Arial", 20));
table.setEditable(true);
Callback<TableColumn<Person, String>,
TableCell<Person, String>> cellFactory
= (TableColumn<Person, String> p) -> new EditingCell();
TableColumn<Person, String> firstNameCol =
new TableColumn<>("First Name");
firstNameCol.setMinWidth(100);
//下一步则是将数据关联到表格中的列
/*
setCellValueFactory方法为每列指定了一个单元格工厂（cell factory），
这些cell factory是通过PropertyValueFactory类来实现的，
它将Person类中对应的属性映射到对应的表格列中。
*/
firstNameCol.setCellValueFactory(
new PropertyValueFactory<>("firstName"));
//TableView类不仅仅可以展现表格数据，并且提供了编辑功能。使用setEditable方法来启用对表格内容的编辑。
//
//使用setCellFactory方法来重新实现表格的单元格，使用TextFieldTableCell类来使其变成一个文本域。
//setOnEditCommit方法处理编辑过程，并且将更新后的值分配给对应的表格单元格
//注意TextField控件默认实现的行为是在用户按下回车键后提交对内容的编辑。
//你可以重新定义TextField的行为使其在失去焦点时提交对内容的编辑
// firstNameCol.setCellFactory(TextFieldTableCell.<Person>forTableColumn());
firstNameCol.setCellFactory(cellFactory);
firstNameCol.setOnEditCommit(new EventHandler<CellEditEvent<Person, String>>() {
@Override
public void handle(CellEditEvent<Person, String> event) {
event.getTableView().getItems().get(event.getTablePosition().getRow());
}
});
firstNameCol.setOnEditCommit(
(CellEditEvent<Person, String> t) -> {
((Person) t.getTableView().getItems().get(
t.getTablePosition().getRow())
).setFirstName(t.getNewValue());
});
TableColumn<Person, String> lastNameCol =
new TableColumn<>("Last Name");
lastNameCol.setMinWidth(100);
lastNameCol.setCellValueFactory(
new PropertyValueFactory<>("lastName"));
// lastNameCol.setCellFactory(TextFieldTableCell.<Person>forTableColumn());
lastNameCol.setCellFactory(cellFactory);
lastNameCol.setOnEditCommit(
(CellEditEvent<Person, String> t) -> {
((Person) t.getTableView().getItems().get(
t.getTablePosition().getRow())
).setLastName(t.getNewValue());
});
TableColumn<Person, String> emailCol = new TableColumn<>("Email");
emailCol.setMinWidth(200);
emailCol.setCellValueFactory(
new PropertyValueFactory<>("email"));
// emailCol.setCellFactory(TextFieldTableCell.<Person>forTableColumn());
emailCol.setCellFactory(cellFactory);
;
emailCol.setOnEditCommit(
(CellEditEvent<Person, String> t) -> {
((Person) t.getTableView().getItems().get(
t.getTablePosition().getRow())
).setEmail(t.getNewValue());
});
// TableColumn firstEmailCol = new TableColumn("Primary");
// TableColumn secondEmailCol = new TableColumn("Secondary");
// emailCol.getColumns().addAll(firstEmailCol, secondEmailCol);
//作为开发者，你可以通过setSortType方法来为每一列设置排序特性。
//你可以指定升序和降序类型。例如，使用下面的代码行可以将emailCol列设置为降序：
// emailCol.setSortType(TableColumn.SortType.DESCENDING);
/*
你可以通过setVisible方法来管理列的可见性。
例如需要隐藏电子邮件信息列，你可以通过emailCol.setVisible(false)来实现。
*/
//当数据模型被定义完毕，并且数据被关联到列之后，
//你可以通过TableView类的setItems方法来向表格中添加数据：如：table.setItems(data)。
table.setItems(data);
table.getColumns().addAll(firstNameCol, lastNameCol, emailCol);
final TextField addFirstName = new TextField();
addFirstName.setPromptText("First Name");
addFirstName.setMaxWidth(firstNameCol.getPrefWidth());
final TextField addLastName = new TextField();
addLastName.setMaxWidth(lastNameCol.getPrefWidth());
addLastName.setPromptText("Last Name");
final TextField addEmail = new TextField();
addEmail.setMaxWidth(emailCol.getPrefWidth());
addEmail.setPromptText("Email");
final Button addButton = new Button("Add");
addButton.setOnAction((ActionEvent e) -> {
data.add(new Person(
addFirstName.getText(),
addLastName.getText(),
addEmail.getText()));
addFirstName.clear();
addLastName.clear();
addEmail.clear();
});
// table.setRowFactory(tv -> {
// TableRow<Person> row = new TableRow<>();
// row.setOnMouseClicked(event -> {
// if (event.getClickCount() == 2 && (!row.isEmpty())) {
// Person rowData = row.getItem();
// System.out.println("Double click on: " rowData);
// }
// });
// return row;
// });
final Button RemoveButton = new Button("Remove");
RemoveButton.setOnAction((ActionEvent e) -> {
table.getItems().removeAll(
table.getSelectionModel().getSelectedItems()
);
});
hb.getChildren().addAll(addFirstName, addLastName, addEmail, addButton, RemoveButton);
hb.setSpacing(3);
//关闭
final Button closeButton = new Button("close");
closeButton.setOnAction((ActionEvent e) -> {
stage.close();
});
final VBox vbox = new VBox();
vbox.setSpacing(5);
vbox.setPadding(new Insets(10, 0, 0, 10));
vbox.getChildren().addAll(label, table, hb, closeButton);
((Group) scene.getRoot()).getChildren().addAll(vbox);
stage.setScene(scene);
stage.show();
}
private MenuBar menuBar(Stage stage) {
Menu fileMenu = new Menu("test");
MenuItem locationRemove = new MenuItem("test1");
MenuItem locationAdd = new MenuItem("test2");
MenuItem exit = new MenuItem("Exit");
exit.setOnAction((ActionEvent e) -> {
stage.close();
});
fileMenu.getItems().addAll(
locationAdd,
new SeparatorMenuItem(),
locationRemove,
new SeparatorMenuItem(),
exit
);
MenuBar menuBar = new MenuBar();
menuBar.getMenus().addAll(fileMenu);
return menuBar;
}
public static class Person {
private final SimpleStringProperty firstName;
private final SimpleStringProperty lastName;
private final SimpleStringProperty email;
private Person(String fName, String lName, String email) {
this.firstName = new SimpleStringProperty(fName);
this.lastName = new SimpleStringProperty(lName);
this.email = new SimpleStringProperty(email);
}
public String getFirstName() {
return firstName.get();
}
public void setFirstName(String fName) {
firstName.set(fName);
}
public String getLastName() {
return lastName.get();
}
public void setLastName(String fName) {
lastName.set(fName);
}
public String getEmail() {
return email.get();
}
public void setEmail(String fName) {
email.set(fName);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Person person = (Person) o;
return Objects.equals(getFirstName(), person.getFirstName()) && Objects.equals(getLastName(), person.getLastName()) && Objects.equals(getEmail(), person.getEmail());
}
@Override
public int hashCode() {
return Objects.hash(getFirstName(), getLastName(), getEmail());
}
@Override
public String toString() {
return "Person{"
"firstName=" firstName
", lastName=" lastName
", email=" email
'}';
}
}
class EditingCell extends TableCell<Person, String> {
private TextField textField;
private final ContextMenu addMenu = new ContextMenu();
public EditingCell() {
MenuItem addMenuItem = new MenuItem("Add Employee");
addMenu.getItems().add(addMenuItem);
addMenuItem.setOnAction((ActionEvent t) -> {
data.add(new Person(
"new",
"new",
"new"));
});
}
@Override
public void startEdit() {
if (!isEmpty()) {
super.startEdit();
createTextField();
setText(null);
setGraphic(textField);
textField.selectAll();
// textField.clear();
}
}
@Override
public void cancelEdit() {
super.cancelEdit();
setText((String) getItem());
setGraphic(null);
}
@Override
public void updateItem(String item, boolean empty) {
super.updateItem(item, empty);
if (empty) {
setText(null);
setGraphic(null);
} else {
if (isEditing()) {
if (textField != null) {
textField.setText(getString());
}
setText(null);
setGraphic(textField);
} else {
setText(getString());
setGraphic(null);
setContextMenu(addMenu);
}
}
}
private void createTextField() {
textField = new TextField(getString());
textField.setMinWidth(this.getWidth() - this.getGraphicTextGap() * 2);
textField.focusedProperty().addListener(
(ObservableValue<? extends Boolean> arg0,
Boolean arg1, Boolean arg2) -> {
if (!arg2) {
commitEdit(textField.getText());
}
});
}
private String getString() {
return getItem() == null ? "" : getItem().toString();
}
}
}
