JAVAFX

<github.com/leewyatt>

#

public class Main extends Application{
    public static void main(String[] args){
        Application.launch(args);
    }
    @Override
    public void start (Stage primaryStage) throws Exception{
        System.out.println('start...');
        primaryStage.setTitle('java fx app');
        primaryStage.show();
    }

    @Override
    public void init()throws Exception{
        super.init();
        System.Out.println('init ...');
    }
    @Override
    public void stop()throws Exception{
        super.stop();
        System.out.println('stop...');
    }

}

public class Main extends Application{
    public static void main(String[] args){
        Application.launch(args);
    }
    @Override
    public void start (Stage primaryStage) throws Exception{

       Button button = new Button('小');
       BorderPane pane = new BorderPane(button);
       button.setOnAction(e->{
        getHostServices().showDocument('www.baidu.com')
       });
        Scene scene = new Scene(pane,300,300);
        primaryStage.setScene(scene);
        primaryStage.setTitle('javafx app');
        primaryStage.show();
    }
}

public class Main extends Application{
    public static void main(String[] args){
        Application.launch(args);
    }
    @Override
    public void start (Stage primaryStage) throws Exception{
        Button button = new Button('hello');
        button.setLayoutX(200);
        button.setLayoutY(200);
        AnchorPane pane = new AnchorPane();
        pane.getChildren().add(button);
        Scene scene = new Scene(pane,500,500);
        primaryStage.setScene(scene);
        primaryStage.setTitle('javafx');
        parimaryStage.getIcons().add(new Image('image/logo.png'));
        parimaryStage.setResizable(false);
        parimaryStage.initStyle(StageStyle.UNDECORATED);
        primaryStage.show();
    }
}

#

public class Main extends Application{
    public static void main(String[] args){
        Application.launch(args);
    }
    @Override
    public void start (Stage primaryStage) throws Exception{
        Button button0 = new Button('hello0');
        Button button1 = new Button('hello1');
        button0.setLayoutX(200);
        button0.setLayoutY(200);
        button1.setLayoutX(200);
        button1.setLayoutY(250);
        AnchorPane pane = new AnchorPane();
        pane.getChildren().addAll(button0,button1);
        button0.setOnAction(event->{
            Stage stage = new Stage();
            stage.setHeight(200);
            stage.setWidth(300);
            stage.initOwner(primaryStage);
            // stage.initModality(Modality.APPLICATION_MODAL);
            stage.initModality(Modality.WINDOW_MODAL);
            stage.show();
        })
        button1.setOnAction(event->{
            Stage stage = new Stage();
            stage.setHeight(200);
            stage.setWidth(300);
            // stage.initOwner(primaryStage);
            // stage.initModality(Modality.APPLICATION_MODAL);
            // stage.initModality(Modality.WINDOW_MODAL);
            stage.show();
        })
        Scene scene = new Scene(pane,500,500);
        primaryStage.setScene(scene);
        primaryStage.setTitle('javafx');
        parimaryStage.getIcons().add(new Image('image/logo.png'));
        parimaryStage.setResizable(false);
        parimaryStage.initStyle(StageStyle.UNDECORATED);
        primaryStage.show();
    }
}

退出程序

public class Main extends Application{
    public static void main(String[] args){
        Application.launch(args);
    }
    @Override
    public void start (Stage primaryStage) throws Exception{
        Button button0 = new Button('hello0');
        Button button1 = new Button('hello1');
        button0.setLayoutX(200);
        button0.setLayoutY(200);
        button1.setLayoutX(200);
        button1.setLayoutY(250);
        AnchorPane pane = new AnchorPane();
        pane.getChildren().addAll(button0,button1);

// 阻止默认退出按钮
        Platform.setImplicitExit(false);
        primaryStage.setOnCloseRequest(event->{
            event.consume();
            Alert alert = new Alert(Alert.AlertType.CONFIRMATION);
            alert.setTitle('退出程序');
            alert.setHeaderText(null);
            alert.setContentText('是否退出程序');
            Optional <ButtonType> result = alert.showAndWait();
            if(result.get()== ButtonType.OK){
                // Platform.exit();
                primaryStage.close();
            }
        })


        Scene scene = new Scene(pane,500,500);
        primaryStage.setScene(scene);
        primaryStage.setTitle('javafx');
        parimaryStage.getIcons().add(new Image('image/logo.png'));
        parimaryStage.setResizable(false);
        parimaryStage.initStyle(StageStyle.UNDECORATED);
        primaryStage.show();
    }
}

切换场景

public class Main extends Application{
    public static void main(String[] args){
        Application.launch(args);
    }
    @Override
    public void start (Stage primaryStage) throws Exception{
        Button button0 = new Button('hello0');
        Button button1 = new Button('hello1');
        button0.setLayoutX(200);
        button0.setLayoutY(200);
        button1.setLayoutX(200);
        button1.setLayoutY(250);

        AnchorPane root = new AnchorPane();
        root.getChildren().addAll(button0);
        Scene scene = new Scene(root, 500,500);
        Label label = new Label("abc");
        label.setLayoutX(200);
        label.setLayoutY(200);
        Button button1  = new Button('返回场景');
        button1.setLayoutX(200);
        button1.setLayoutY(200);

        AnchrPane root1 = new AnchorPane();
        root1.getChildren().addAll(label,button1);
        Scene scene1 = new Scene(root1,500,500);

        scene1.setCursor(new ImageCursor(new Image('image/p.png')));
        scene.setCursor(new ImageCursor(new Image('image/p2.png')));
        button0.setOnAction(event->{
            primaryStage.setScene(scene1);
        });
        button1.setOnAction(event->{
            primaryStage.setScene(scene);
        })

        primaryStage.setScene(scene);
        primaryStage.setTitle('javafx');
        parimaryStage.getIcons().add(new Image('image/logo.png'));
        parimaryStage.setResizable(false);
        parimaryStage.initStyle(StageStyle.UNDECORATED);
        primaryStage.show();
    }
}

javafx css 样式

public class Main extends Application{
    public static void main(String[] args){
        Application.launch(args);
    }
    @Override
    public void start (Stage primaryStage) throws Exception{
       Label label = new Label("hello");
       label.setLayoutX(200);
       label.setLayoutY(200);
       label.setStyle("-fx-background-color:red;-fx-border-color:blue;-fx-border-width:3px");
       label.setPrefWidth(200);
       label.setPrefHeight(50);
       label.setAlignment(Post.CENTER);
       AnchorPane root = new AnchorPane();
       root.getChildren().add(label);
       Scene scene = new Scene(root,500,500);

        primaryStage.setScene(scene);
        primaryStage.show();
    }
}

public class Main extends Application{
    public static void main(String[] args){
        Application.launch(args);
    }
    @Override
    public void start (Stage primaryStage) throws Exception{
        Label label = new Label("hello");
        label.setLayoutX(200);
        label.setLayoutY(200);
        label.setStyle("-fx-background-color:red;-fx-border-color:blue;-fx-border-width:3px");
        label.setPrefWidth(200);
        label.setPrefHeight(50);
        label.setAlignment(Post.CENTER);

        label.setOpacity(0.5);
        label.setRotate(70);
        label.setTranslateX(60);
        label.setTranslatey(100);
        AnchorPane root = new AnchorPane();
        root.getChildren().add(label);
        Scene scene = new Scene(root,500,500);

        primaryStage.setScene(scene);
        primaryStage.show();
    }
}

public class Main extends Application{
    public static void main(String[] args){
        Application.launch(args);
    }
    @Override
    public void start (Stage primaryStage) throws Exception{
        Circle circle = new Circle();
        circle.setCenterX(250);
        circle.setCenterY(250);
        circle.setRadius(100);
        circle.setStroke(Color.BLACK);
        circle.setFill(Color.WHITE);
        AnchorPane root = new AnchorPane();
        root.getChildren().add(label);
        Scene scene = new Scene(root,500,500);
        primaryStage.setScene(scene);
        primaryStage.show();
    }
}

public class Main extends Application{
    public static void main(String[] args){
        Application.launch(args);
    }
    @Override
    public void start (Stage primaryStage) throws Exception{
        Scene scene = new Scene(root,500,500);
        Circle circle = new Circle();
        circle.setCenterX(250);
        circle.setCenterY(250);
        circle.setRadius(100);
        circle.setStroke(Color.BLACK);
        circle.setFill(Color.WHITE);
        circle.centerXProperty().bind(scene.widthProperty().divide(2));
        circle.centeryProperty().bind(scene.heightProperty().divide(2));
        root.getChildren().add(circle);
        primaryStage.setScene(scene);
        primaryStage.show();
    }
}

public class Main extends Application{
    public static void main(String[] args){
        Application.launch(args);
    }
    @Override
    public void start (Stage primaryStage) throws Exception{
        Scene scene = new Scene(root,500,500);
        Circle circle = new Circle();
        circle.setCenterX(250);
        circle.setCenterY(250);
        circle.setRadius(100);
        circle.setStroke(Color.BLACK);
        circle.setFill(Color.WHITE);
        circle.centerXProperty().bind(scene.widthProperty().divide(2));
        circle.centeryProperty().bind(scene.heightProperty().divide(2));
        circle.centerXProperty().addListener(new ChangeListener<Number>(){
            @Override
            public void changed(ObservableValue<? extends Number> observable, Number oldValue,Number newValue){
                System.out.println();
            }
        })
        root.getChildren().add(circle);
        primaryStage.setScene(scene);
        primaryStage.show();
    }
}

public class Main extends Application{
    public static void main(String[] args){
        Application.launch(args);
    }
    @Override
    public void start (Stage primaryStage) throws Exception{
        AnchorPane root = new AnchorPane();
        Scene scene = new Scene(root,500,500);
        Label label = new Label('Hello');
        label.setLayoutX(200);
        label.setLayoutY(200);
        Button button  = new Button('向上移动');
        button.setLayoutX(300);
        button.setLayoutY(200);
        root.getChildren().addAll(label,button);
        button.setOnAction(new EventHandler<ActionEvent>(){
            @Override
            public void handle(ActionEvent event){
                label.setLayoutY(label.getLayoutY()-5);
            }
        })
        // button.setOnKeyReleased(new EventHandler<KeyEvent>(){
        //     @Override
        //     public void handle(KeyEvent event){

        //     }
        // })
         button.setOnKeyReleased(event->{
            KeyCode keyCode = event.getCode();
            if(keyCode.equals(KeyCode.DOWN)){
                label.setLayoutY(label.getLayoutY() + 5)
            }

         })
        primaryStage.setScene(scene);
        primaryStage.show();
    }
}