找出问题所在,这是正确的代码。我需要编写自定义 GridPane(用于显示菜单项)和用于生成自定义对象的单元工厂。
//Main Class
package application;
import java.util.Random;
import org.controlsfx.control.GridCell;
import org.controlsfx.control.GridView;
import org.controlsfx.control.cell.ColorGridCell;
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Orientation;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.ListCell;
import javafx.scene.control.ListView;
import javafx.scene.control.TextField;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.util.Callback;
public class Main extends Application {
@Override
public void start(Stage primaryStage) {
try {
VBox root = new VBox();
Scene scene = new Scene(root,400,400);
scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm());
primaryStage.setScene(scene);
GridView<MenuItem> menuItems = new GridView<>();
for(int i = 0; i < 10000; i++) {
menuItems.getItems().addAll(new MenuItem(i));
}
menuItems.setCellFactory(new MenuItemCellFactory());
root.getChildren().add(menuItems);
primaryStage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
launch(args);
}
}
/**
* Custom Menu Item
*/
package application;
import javafx.scene.control.Label;
import javafx.scene.layout.GridPane;
/**
* @author Rahul
*
*/
public class MenuItem extends GridPane {
private Integer name = null;
public MenuItem(int i) {
// TODO Auto-generated constructor stub
this.name = i;
}
public Integer getName() {
return name;
}
public void setName(Integer name) {
this.name = name;
}
}
//Menu Item Cell Factory
package application;
import org.controlsfx.control.GridCell;
import org.controlsfx.control.GridView;
import javafx.scene.control.ListCell;
import javafx.scene.control.ListView;
import javafx.scene.layout.GridPane;
import javafx.util.Callback;
public class MenuItemCellFactory implements Callback<GridView<MenuItem>, GridCell<MenuItem>> {
@Override
public GridCell<MenuItem> call(GridView<MenuItem> listview) {
return new MenuItemCell();
}
}
//Menu Item Cell
package application;
import org.controlsfx.control.GridCell;
import javafx.scene.control.ListCell;
import javafx.scene.layout.GridPane;
public class MenuItemCell extends GridCell<MenuItem> {
@Override
protected void updateItem(MenuItem item, boolean empty) {
// TODO Auto-generated method stub
super.updateItem(item, empty);
if (empty || item == null) {
setText(null);
setGraphic(null);
} else {
setText(item.getName().toString());
setStyle("-fx-background-color: #ffffff; -fx-background-radius: 15; -fx-border-radius: 15; -fx-border-width: 0; -fx-padding: 10; -fx-pref-width: 145; -fx-max-width: 145; -fx-max-width: 145; -fx-pref-height: 130; -fx-max-height: 130; -fx-effect: dropshadow(three-pass-box, #93948d, 10, 0, 0, 0);");
}
}
}
这是使用 GridView 的示例代码,其中包含使用 cellfactory 的 GridPane 列表。请根据您的要求进行修改。基本保持不变。
欢迎提出建议和反馈。谢谢。