我想制作一個轉換不同基礎的項目，但我的單選按鈕不起作用。我正在制作三個不同的 VBox 來添加按鈕，但只有第三列有效。我對 JavaFX 很陌生，所以如果有人能幫助我，我將不勝感激。謝謝！這是我的代碼import javafx.application.Application;import javafx.scene.Scene;import javafx.scene.control.RadioButton;import javafx.scene.control.TextField;import javafx.scene.control.ToggleGroup;import javafx.scene.layout.*;import javafx.scene.text.Text;import javafx.scene.text.TextAlignment;import javafx.stage.Stage;import java.math.BigInteger;public class Main extends Application {private ToggleGroup group;private TextField txtfield;private TextField output;private int base = 10;public static void main(String[] args) { launch(args);}@Overridepublic void start(Stage primaryStage) { BorderPane root = new BorderPane(); StackPane title = new StackPane(); Text t = new Text("Gib die Basis und die Zahl ein!"); t.setTextAlignment(TextAlignment.CENTER); title.getChildren().add(t); FlowPane center = new FlowPane(); center.setPrefSize(400, 300); HBox input = new HBox(); VBox base1 = new VBox(); VBox base2 = new VBox(); VBox base3 = new VBox(); input.setPrefSize(400, 100); base1.setPrefSize(50, 150); base2.setPrefSize(50, 150); base3.setPrefSize(50, 150); group = new ToggleGroup(); for (int i = 2; i < 35; i++) { RadioButton b = new RadioButton(String.valueOf(i)); if (i == 10) { b.setSelected(true); } b.setToggleGroup(group); b.setOnMouseClicked(mouseEvent -> { base = Integer.valueOf(b.getText()); update(); }); if (i % 3 == 2) { base1.getChildren().add(b); b.setTranslateX(110); } else if (i % 3 == 0) { base2.getChildren().add(b); b.setTranslateX(120); } else { base3.getChildren().add(b); b.setTranslateX(130); } }這是程序應該（并且確實）看起來的樣子
1 回答
縹緲止盈
TA貢獻2041條經驗 獲得超4個贊
我相信您對 a 的使用StackPane可能會阻止鼠標事件在您的 RadioButtons 上注冊。
雖然我通常不這樣做，但下面是一個重新配置的布局，您可以將其用作代碼的起點。我已經大大簡化了布局，所有 RadioButtons 都按要求運行：
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.RadioButton;
import javafx.scene.control.TextField;
import javafx.scene.control.ToggleGroup;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class scratch_1 extends Application {
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage primaryStage) throws Exception {
VBox root = new VBox(10);
root.setAlignment(Pos.CENTER);
root.setPadding(new Insets(10));
Label lblTitle = new Label("Gib die Basis und die Zahl ein!");
root.getChildren().add(lblTitle);
// The input TextField
TextField txtInput = new TextField();
root.getChildren().add(txtInput);
// HBox to hold our three columns
HBox hBoxSelections = new HBox(20);
hBoxSelections.setAlignment(Pos.CENTER);
// Use a GridPane for our RadioButton grid
GridPane gridSelections = new GridPane();
gridSelections.setAlignment(Pos.CENTER);
gridSelections.setHgap(10);
gridSelections.setVgap(5);
// Our ToggleGroup to which all RadioButtons will belong
ToggleGroup groupSelections = new ToggleGroup();
// We need 11 rows of 3 RadioButtons, let's use a couple of for loops to populate the GridPane
int counter = 2;
for (int i = 0; i < 11; i++) {
for (int j = 0; j < 3; j++) {
RadioButton radioButton = new RadioButton("" + counter);
radioButton.setToggleGroup(groupSelections);
gridSelections.add(radioButton, j, i);
counter++;
}
}
// Let's add the GridPane to our root layout
root.getChildren().add(gridSelections);
primaryStage.setScene(new Scene(root, 400, 400));
primaryStage.show();
}
}
結果：
請注意，我從您之前的代碼發布中工作，因此上述示例不包括您的update()方法（或任何邏輯，就此而言）。
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