如何在SplitPane JavaFX中锁定分隔符？

Question

我有一个SplitPane,我需要将布局分为25%和75%.此外,我需要禁止向右侧拖动超过25%的分割.但是我可以在25%的空间内拖动到任何程度.请帮忙.

Answer 1

SplitPane将尊重items它包含的组件()的最小和最大尺寸.因此,要获得所需的行为maxWidth,请将左侧组件绑定到splitPane.maxWidthProperty().multiply(0.25):

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.SplitPane;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class ConstrainedSplitPane extends Application {

    @Override
    public void start(Stage primaryStage) {
        StackPane leftPane = new StackPane(new Label("Left"));
        StackPane rightPane = new StackPane(new Label("Right"));
        SplitPane splitPane = new SplitPane();
        splitPane.getItems().addAll(leftPane, rightPane);
        splitPane.setDividerPositions(0.25);

        //Constrain max size of left component:
        leftPane.maxWidthProperty().bind(splitPane.widthProperty().multiply(0.25));

        primaryStage.setScene(new Scene(new BorderPane(splitPane), 800, 600));
        primaryStage.show();
    }

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