我是JavaFX的初学者。我试图创建我自己的Button子类,它将具有鼠标输入和鼠标退出的动画。我试图实现的动画是一个简单的变暗"或者"昏暗"当用户将鼠标悬停在按钮上时会使按钮背景的颜色变暗的转换,并且当鼠标退出按钮时会转换回正常状态。
首先我认为我可以通过FillTransition实现这一点,但为此我需要按钮的特定深色,这取决于按钮的颜色。 所以现在我试图基本淡出并淡出按钮顶部的低不透明度黑色矩形,但矩形似乎根本不出现。
这是我按钮的代码:
public class FlatButton extends Button {
private Rectangle dimRectangle;
private Duration dimDuration = Duration.millis(250);
private Color dimColor = new Color(0,0,0,0.11);
public FlatButton(String text) {
super(text);
getStyleClass().addAll("flat-button-style");
createEffect();
}
private void createEffect()
{
dimRectangle = new Rectangle(this.getWidth(), this.getHeight(), dimColor);
dimRectangle.setOpacity(1.0);
dimRectangle.setX(this.get);
FadeTransition enterTransition = new FadeTransition(dimDuration, this);
enterTransition.setInterpolator(Interpolator.EASE_OUT);
enterTransition.setFromValue(0.0);
enterTransition.setToValue(1.0);
FadeTransition exitTransition = new FadeTransition(dimDuration, this);
exitTransition.setInterpolator(Interpolator.EASE_OUT);
exitTransition.setFromValue(1.0);
exitTransition.setToValue(0.0);
this.setOnMouseEntered(new EventHandler<MouseEvent>(){
public void handle(MouseEvent mouseEvent){
enterTransition.play();
}
});
this.setOnMouseExited(new EventHandler<MouseEvent>(){
public void handle(MouseEvent mouseEvent){
exitTransition.play();
}
});
}
}
编辑:代码中的部分&#34;新的FadeTransition(dimDuration,this);&#34;应该是&#34;新的FadeTransition(dimDuration,dimRectangle);&#34;。这只是我正在测试的东西。
EDIT2:我认为&#34; dimRectangle = new Rectangle(this.getWidth(),this.getHeight(),dimColor);&#34;是不是真的有效,但我还没有找到一种方法,如何使矩形填充按钮尺寸。
答案 0 :(得分:1)
您可以使用ColorAdjust效果并使用brightness更改Timeline属性。
public class ButtonFadeDemo extends Application {
@Override
public void start(Stage primaryStage) {
try {
Pane root = new Pane();
Button button = new Button("Click me!");
ColorAdjust colorAdjust = new ColorAdjust();
colorAdjust.setBrightness(0.0);
button.setEffect(colorAdjust);
button.setOnMouseEntered(e -> {
Timeline fadeInTimeline = new Timeline(
new KeyFrame(Duration.seconds(0),
new KeyValue(colorAdjust.brightnessProperty(), colorAdjust.brightnessProperty().getValue(), Interpolator.LINEAR)),
new KeyFrame(Duration.seconds(1), new KeyValue(colorAdjust.brightnessProperty(), -1, Interpolator.LINEAR)
));
fadeInTimeline.setCycleCount(1);
fadeInTimeline.setAutoReverse(false);
fadeInTimeline.play();
});
button.setOnMouseExited(e -> {
Timeline fadeOutTimeline = new Timeline(
new KeyFrame(Duration.seconds(0),
new KeyValue(colorAdjust.brightnessProperty(), colorAdjust.brightnessProperty().getValue(), Interpolator.LINEAR)),
new KeyFrame(Duration.seconds(1), new KeyValue(colorAdjust.brightnessProperty(), 0, Interpolator.LINEAR)
));
fadeOutTimeline.setCycleCount(1);
fadeOutTimeline.setAutoReverse(false);
fadeOutTimeline.play();
});
root.getChildren().addAll(button);
Scene scene = new Scene(root, 800, 400);
primaryStage.setScene(scene);
primaryStage.show();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
launch(args);
}
}