在JavaFX中筛选ListView中的项目

import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.scene.control.ListView;
import javafx.scene.control.TextField;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

import java.util.function.Predicate;

public class ListViewFilterExample extends Application {

    @Override
    public void start(Stage primaryStage) {
        ListView<String> listView = new ListView<>();
        ObservableList<String> items = FXCollections.observableArrayList(
                "Apple", "Banana", "Cherry", "Durian", "Grape", "Lemon", "Orange", "Peach");
        listView.setItems(items);

        TextField filterTextField = new TextField();
        filterTextField.setPromptText("Filter");

        // 创建过滤器
        Predicate<String> filter = item -> {
            String filterText = filterTextField.getText().toLowerCase();
            return item.toLowerCase().contains(filterText);
        };

        // 应用过滤器
        listView.setPredicate(filter);

        filterTextField.textProperty().addListener((observable, oldValue, newValue) -> {
            // 当文本框内容改变时，重新应用过滤器
            listView.setPredicate(filter);
        });

        VBox root = new VBox(listView, filterTextField);
        Scene scene = new Scene(root, 200, 200);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}