我一辈子都弄不明白为什么我不能在边框窗格的某个部分中居中放置VBox。
@Override
public void start(Stage primaryStage) throws Exception{
BorderPane root = new BorderPane();
Scene scene = new Scene(root, 960, 600);
primaryStage.setScene(scene);
primaryStage.setTitle("Test application");
primaryStage.setFullScreen(true);
primaryStage.setFullScreenExitHint("Press escape to exit fullscreen");
primaryStage.show();
javafx.scene.image.Image icon = new Image("sample/Riverviewcrest.png");
primaryStage.getIcons().add(icon);
Pane paneleft = new Pane();
Pane paneright = new Pane();
Pane panecenter = new Pane();
Pane panetop = new Pane();
Pane panebottom = new Pane();
paneleft.setPrefWidth(100);
paneright.setPrefWidth(100);
panetop.setPrefHeight(100);
panebottom.setPrefHeight(100);
panecenter.setStyle("-fx-background-color: #0053A8");
root.setLeft(paneleft);
root.setRight(paneright);
root.setCenter(panecenter);
root.setTop(panetop);
root.setBottom(panebottom);
Text test = new Text("Hello");
Text test2 = new Text("Hello");
Text test3 = new Text("Hello");
Text test4 = new Text("Hello");
VBox box = new VBox();
box.getChildren().addAll(test, test2, test3, test4);
panecenter.getChildren().add(box);
root.setAlignment(box, Pos.CENTER);
}
public static void main(String[] args) {
launch(args);
}
目的是让文本在边框窗格的中心部分居中。感谢所有的帮助！
根本不需要使用panecenter。只需将box设置为BorderPane的中心属性，然后将其居中：
box.setAlignment(Pos.CENTER);
root.setCenter(box);
您也不需要paneleft、paneright，panetop或paneebottom。
paneCenter与其他所有内容一样，只是一个窗格。因此，paneCenter居中，而不是VBox。
您可以使用 StackPane 并像这样调整 VBox 的对齐方式：
import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.Pane;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.scene.text.Text;
import javafx.stage.Stage;
public class Main extends Application {
@Override
public void start(Stage primaryStage) throws Exception{
BorderPane root = new BorderPane();
Scene scene = new Scene(root, 960, 600);
primaryStage.setScene(scene);
primaryStage.setTitle("Test application");
primaryStage.show();
Pane paneleft = new Pane();
Pane paneright = new Pane();
StackPane panecenter = new StackPane();
Pane panetop = new Pane();
Pane panebottom = new Pane();
paneleft.setPrefWidth(100);
paneright.setPrefWidth(100);
panetop.setPrefHeight(100);
panebottom.setPrefHeight(100);
panecenter.setStyle("-fx-background-color: #0053A8");
root.setLeft(paneleft);
root.setRight(paneright);
root.setCenter(panecenter);
root.setTop(panetop);
root.setBottom(panebottom);
Text test = new Text("Hello");
Text test2 = new Text("Hello");
Text test3 = new Text("Hello");
Text test4 = new Text("Hello");
VBox box = new VBox();
box.setAlignment(Pos.CENTER);
box.getChildren().addAll(test, test2, test3, test4);
panecenter.getChildren().add(box);
}
public static void main(String[] args) {
launch(args);
}
}
或者您可以删除< code>panecenter并使用< code>VBox来代替。
import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.Pane;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.scene.text.Text;
import javafx.stage.Stage;
public class Main extends Application {
@Override
public void start(Stage primaryStage) throws Exception{
BorderPane root = new BorderPane();
Scene scene = new Scene(root, 960, 600);
primaryStage.setScene(scene);
primaryStage.setTitle("Test application");
primaryStage.show();
Pane paneleft = new Pane();
Pane paneright = new Pane();
StackPane panecenter = new StackPane();
Pane panetop = new Pane();
Pane panebottom = new Pane();
paneleft.setPrefWidth(100);
paneright.setPrefWidth(100);
panetop.setPrefHeight(100);
panebottom.setPrefHeight(100);
panecenter.setStyle("-fx-background-color: #0053A8");
root.setLeft(paneleft);
root.setRight(paneright);
root.setTop(panetop);
root.setBottom(panebottom);
Text test = new Text("Hello");
Text test2 = new Text("Hello");
Text test3 = new Text("Hello");
Text test4 = new Text("Hello");
VBox box = new VBox();
box.setAlignment(Pos.CENTER);
box.getChildren().addAll(test, test2, test3, test4);
root.setCenter(box);
}
public static void main(String[] args) {
launch(args);
}
}
