本文共 2250 字，大约阅读时间需要 7 分钟。

package	javafxui;import javafx.application.Application;import javafx.beans.value.ObservableValue;import javafx.collections.FXCollections;import javafx.collections.ObservableList;import javafx.scene.Scene;import javafx.scene.control.Label;import javafx.scene.control.ListCell;import javafx.scene.control.ListView;import javafx.scene.layout.Priority;import javafx.scene.layout.VBox;import javafx.scene.paint.Color;import javafx.scene.shape.Rectangle;import javafx.scene.text.Font;import javafx.stage.Stage;public class LearnUI extends Application {    ListView
   
     list = new ListView<>();    ObservableList
    
      data = FXCollections.observableArrayList(            "chocolate", "salmon", "gold", "coral", "darkorchid",            "darkgoldenrod", "lightsalmon", "black", "rosybrown", "blue",            "blueviolet", "brown");    final Label label = new Label();    @Override    public void start(Stage stage) {        VBox box = new VBox();        Scene scene = new Scene(box, 200, 200);        stage.setScene(scene);        stage.setTitle("ListViewSample");        box.getChildren().addAll(list, label);        VBox.setVgrow(list, Priority.ALWAYS);//垂直适应窗口大小        label.setLayoutX(10);        label.setLayoutY(115);        label.setFont(Font.font("Verdana", 20));        list.setItems(data);        list.setCellFactory((ListView
     
       l) -> new ColorRectCell());        //为选中的list Item 显示对应颜色的 文本        list.getSelectionModel().selectedItemProperty().addListener(                (ObservableValue
       ov, String old_val,                        String new_val) -> {                    label.setText(new_val);                    label.setTextFill(Color.web(new_val));                });        	stage.show();    }    static class ColorRectCell extends ListCell
      
        {    	//item 就是指ListView  中的item 元素        @Override        public void updateItem(String item, boolean empty) {        	super.updateItem(item, empty);        	Rectangle rectangle = new Rectangle(100, 20);        	if(item != null) {        		rectangle.setFill(Color.web(item));        		setGraphic(rectangle);        	}        	else {        		setGraphic(null);        	}        }    }    public static void main(String[] args) {        launch(args);    }}
      
     
    
   

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