JavaFX

Question

我在 Javafx 中有一个窗格，它希望在鼠标进入其边界时进行动画处理，并且我希望动画在鼠标离开该窗格后停止。我知道这需要倾听者，但我找到的所有答案似乎都只关注 java.awt

Answer 1

您可以使用方法 Node.setOnMouseEntered() and Node.setOnMouseExited() 注册事件处理程序，以启动或停止动画。这是一个简单的例子：

public class MainTest extends Application {
    public void start(Stage primaryStage) {
        Pane pane = new Pane();
        pane.setStyle("-fx-background-color: #ff0000");
        pane.setLayoutX(100);
        pane.setLayoutY(100);
        pane.setPrefSize(300,300);
        pane.setOnMouseEntered(event -> startAnimation());
        pane.setOnMouseExited(event -> stopAnimation());

        Scene scene = new Scene(new Pane(pane), 500, 500);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    private void stopAnimation() {
        System.out.println("stop");
        // do whatever you need to start your animation
    }

    private void startAnimation() {
        System.out.println("start");
        // do whatever you need to stop your animation
    }
}

Answer 2

或者您可以使用 *.fxml 文件链和您的控制器 class:

将两个事件 onMouseEntered="#onMouseInto" onMouseExited="#onMouseOut" 添加到您的 fxml 文件到窗格字符串中，使其像

<AnchorPane fx:id="rootPane" onMouseEntered="#onMouseInto" onMouseExited="#onMouseOut" prefHeight="400.0" prefWidth="400.0" xmlns="http://javafx.com/javafx/8.0.171" xmlns:fx="http://javafx.com/fxml/1" fx:controller="yourPackage.YourControllerClass">

将方法事件添加到控制器中class。例如，我将更改窗格的背景颜色，但您可以确定地做任何您想做的事；)

    @FXML
    public AnchorPane rootPane;

    public void onMouseInto(MouseEvent mouseEvent) {
        //Your own event when cursor is gonna into the rootPane
        rootPane.setStyle("-fx-background-color: #1F292E");
    }

    public void onMouseOut(MouseEvent mouseEvent) {
        //Your own event when cursor is gonna out the rootPane
        rootPane.setStyle("-fx-background-color: #C792EA");
    }

JavaFX - 如何检查鼠标是否已进入和/或退出窗格？

JavaFX - How to check if mouse is has entered and or exited a Pane?

java

mouseevent

listener

mouselistener