长话短说，我有8x8网格窗格（用它作为棋盘），我希望能够点击每个单元格并获得其坐标。
public class BoardView {
private ImageView imageView = new ImageView(new Image("board.png"));
private GridPane boardGrid = new GridPane();
public void createBoard(){
boardGrid.getChildren().add(imageView);
for(int i =0;i < 8; i++){
for(int j = 0; j < 8; j++){
Tile tile = new Tile(i, j);
GridPane.setConstraints(tile.getPane(), i, j);
boardGrid.getChildren().add(tile.getPane());
}
}
}
class Tile {
private int positionX;
private int positionY;
private Pane pane;
Tile(int x, int y) {
pane = new Pane();
positionX = x;
positionY = y;
pane.setOnMouseClicked(e -> {
System.out.println(positionX + " " + positionY);
}
);
}
}
然而，无论我点击哪里，结果都是“0 0”，而不是实际的行/列位置。
您的代码不完整，您的一些错误是：
>
您没有在每个窗格（磁贴）上给出特定的大小（宽度、高度）
我猜你在某个地方设置了网格窗格的大小，但这只是一种猜测，现在你在网格上添加背景图像的方式是我不建议使用StackPane。
这是一个小例子，您可以检查它来调试您的问题。
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Pane;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
public class BoardView extends Application {
// the dimensions of our background Image
private final int BORDER_WIDTH = 695;
private final int BORDER_HEIGHT = 720;
@Override
public void start(Stage stage) throws Exception {
// Load your Image
ImageView backgroundImageView = new ImageView(
new Image("https://cdn.pixabay.com/photo/2013/07/13/10/24/board-157165_960_720.png"));
// Initialize the grid
GridPane boardGrid = initBoard();
// Set the dimensions of the grid
boardGrid.setPrefSize(BORDER_WIDTH, BORDER_HEIGHT);
// Use a StackPane to display the Image and the Grid
StackPane mainPane = new StackPane();
mainPane.getChildren().addAll(backgroundImageView, boardGrid);
stage.setScene(new Scene(mainPane));
stage.setResizable(false);
stage.show();
}
private GridPane initBoard() {
GridPane boardGrid = new GridPane();
int tileNum = 8;
double tileWidth = BORDER_WIDTH / tileNum;
double tileHeight = BORDER_HEIGHT / tileNum;
for (int i = 0; i < tileNum; i++) {
for (int j = 0; j < tileNum; j++) {
Tile tile = new Tile(i, j);
// Set each 'Tile' the width and height
tile.setPrefSize(tileWidth, tileHeight);
// Add node on j column and i row
boardGrid.add(tile, j, i);
}
}
// Return the GridPane
return boardGrid;
}
class Tile extends Pane {
private int positionX;
private int positionY;
public Tile(int x, int y) {
positionX = x;
positionY = y;
setOnMouseClicked(e -> {
System.out.println(positionX + " " + positionY);
});
}
}
public static void main(String[] args) {
launch(args);
}
}
从我的角度来看，如果你让类扩展窗格而不是仅仅引用窗格，你会更容易处理每个瓷砖，但这只是我的观点。不管怎样，上面只是一个例子。如果你找不到问题，那么发布一个MCVE节目，我们可以更好地帮助你。
