When a user completes an action it’s nice to display a message to show that the action was successful. With JavaFX animations this becomes very easy to do.
The code below displays a message when a button is clicked, and quickly fades away.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | package statusflash; import javafx.animation.FadeTransition; import javafx.application.Application; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.geometry.Bounds; import javafx.scene.Group; import javafx.scene.Node; import javafx.scene.Parent; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.control.TextField; import javafx.scene.layout.BorderPane; import javafx.scene.layout.Pane; import javafx.scene.paint.Color; import javafx.scene.shape.Rectangle; import javafx.scene.text.Font; import javafx.scene.text.FontWeight; import javafx.scene.text.Text; import javafx.stage.Stage; import javafx.util.Duration; public class StatusFlash extends Application { public static void main(String[] args) { Application.launch(args); } @Override public void start(Stage primaryStage) { primaryStage.setTitle("Status Flash"); BorderPane layout = new BorderPane(); Scene scene = new Scene(layout, 300, 250); final TextField text = new TextField("Added 1 Record"); final Button btn = new Button(); btn.setText("Show Message"); layout.setCenter(text); layout.setBottom(btn); btn.setOnAction(new EventHandler<ActionEvent>() { public void handle(ActionEvent event) { flash(btn, text.getText()); } }); primaryStage.setScene(scene); primaryStage.show(); } public static void flash(Node node, String message) { Font font = Font.font("Verdana", FontWeight.NORMAL, 20); Color boxColor = Color.GREY; Color textColor = Color.WHITE; double duration = 800; double arcH = 5; double arcW = 5; final Rectangle rectangle = new Rectangle(); final Text text = new Text(message); double x = 0; double y = 0; text.setLayoutX(x); text.setLayoutY(y); text.setFont(font); text.setFill(textColor); Scene scene = node.getScene(); final Parent p = scene.getRoot(); if (p instanceof Group) { Group group = (Group) p; group.getChildren().add(rectangle); group.getChildren().add(text); } if (p instanceof Pane) { Pane group = (Pane) p; group.getChildren().add(rectangle); group.getChildren().add(text); } Bounds bounds = text.getBoundsInParent(); double sWidth = scene.getWidth(); double sHeight = scene.getHeight(); x = sWidth / 2 - (bounds.getWidth() / 2); y = sHeight / 2 - (bounds.getHeight() / 2); text.setLayoutX(x); text.setLayoutY(y); bounds = text.getBoundsInParent(); double baseLineOffset = text.getBaselineOffset(); rectangle.setFill(boxColor); rectangle.setLayoutX(x - arcW); rectangle.setLayoutY(y - baseLineOffset - arcH); rectangle.setArcHeight(arcH); rectangle.setArcWidth(arcW); rectangle.setWidth(bounds.getWidth() + arcW * 2); rectangle.setHeight(bounds.getHeight() + arcH * 2); FadeTransition ft = new FadeTransition( Duration.millis(duration), rectangle); ft.setFromValue(1.0); ft.setToValue(0.0); ft.play(); ft.setOnFinished(new EventHandler<ActionEvent>() { public void handle(ActionEvent event) { if (p instanceof Group) { Group group = (Group) p; group.getChildren().remove(rectangle); group.getChildren().remove(text); } if (p instanceof Pane) { Pane group = (Pane) p; group.getChildren().remove(rectangle); group.getChildren().remove(text); } } }); FadeTransition ft2 = new FadeTransition( Duration.millis(duration + (duration * .1)), text); ft2.setFromValue(1.0); ft2.setToValue(0.0); ft2.play(); } } |
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