我在JavaFX中制作了一个Risk版本。现在为了显示游戏数据,我使用了一个标签网格来显示每个地区的信息。现在,我想在标签上安装鼠标点击监听器,这样我就可以通过点击它们来测试游戏功能,直到我制作出完整的游戏板。除了当我尝试在FXML文档中添加侦听器时,我会遇到错误。现在我在控制器中声明标签,将它们添加到集合中,这样我就可以使用循环绑定每个标签的textProperty,然后将每个标签添加到网格中。然后在FXML中,我为每个定义onMouseClickd。这是控制器代码:
@FXML
private GridPane tGrid = new GridPane();
@FXML Label label1 = new Label();
@FXML Label label2 = new Label();
@FXML Label label3 = new Label();
@FXML Label label4 = new Label();
@FXML Label label5 = new Label();
@FXML Label label6 = new Label();
@FXML Label label7 = new Label();
@FXML Label label8 = new Label();
@FXML Label label9 = new Label();
@FXML Label label10 = new Label();
@FXML Label label11 = new Label();
@FXML Label label12 = new Label();
@FXML Label label13 = new Label();
@FXML Label label14 = new Label();
@FXML Label label15 = new Label();
@FXML Label label16 = new Label();
@FXML Label label17 = new Label();
@FXML Label label18 = new Label();
@FXML Label label19 = new Label();
@FXML Label label20 = new Label();
@FXML Label label21 = new Label();
@FXML Label label22 = new Label();
@FXML Label label23 = new Label();
@FXML Label label24 = new Label();
@FXML Label label25 = new Label();
@FXML Label label26 = new Label();
@FXML Label label27 = new Label();
@FXML Label label28 = new Label();
@FXML Label label29 = new Label();
@FXML Label label30 = new Label();
@FXML Label label31 = new Label();
@FXML Label label32 = new Label();
@FXML Label label33 = new Label();
@FXML Label label34 = new Label();
@FXML Label label35 = new Label();
@FXML Label label36 = new Label();
@FXML Label label37 = new Label();
@FXML Label label38 = new Label();
@FXML Label label39 = new Label();
@FXML Label label40 = new Label();
@FXML Label label41 = new Label();
@FXML Label label42 = new Label();
@Override
public void initialize(URL url, ResourceBundle rb) {
anchor.setLeftAnchor(tGrid, 10.0);
anchor.setRightAnchor(pGrid, 10.0);
tGrid.setVisible(false);
pGrid.setVisible(false);
labels.add(label1);
labels.add(label2);
labels.add(label3);
labels.add(label4);
labels.add(label5);
labels.add(label6);
labels.add(label7);
labels.add(label8);
labels.add(label9);
labels.add(label10);
labels.add(label11);
labels.add(label12);
labels.add(label13);
labels.add(label14);
labels.add(label15);
labels.add(label16);
labels.add(label17);
labels.add(label18);
labels.add(label19);
labels.add(label20);
labels.add(label21);
labels.add(label22);
labels.add(label23);
labels.add(label24);
labels.add(label25);
labels.add(label26);
labels.add(label27);
labels.add(label28);
labels.add(label29);
labels.add(label30);
labels.add(label31);
labels.add(label32);
labels.add(label33);
labels.add(label34);
labels.add(label35);
labels.add(label36);
labels.add(label37);
labels.add(label38);
labels.add(label39);
labels.add(label40);
labels.add(label41);
labels.add(label42);
int k = 0;
for(int i = 0; i < 6; i++) {
for(int j = 0; j < game.getContinent(i).getTerritoryNum(); j++) {
labels.get(k).textProperty().bind(game.getContinent(i).getTerritory(j).getProperty());
k += 1;
}//for
}//for
for (int i = 0; i < 42; i++) {
tGrid.add(labels.get(i), 0, i);
}//for
这里是FXML代码(除了所有标签上都会有onMouseClickd):
<Label fx:id="label1"onMouseClicked="#labelAction" />
<Label fx:id="label2"/>
<Label fx:id="label3"/>
<Label fx:id="label4"/>
<Label fx:id="label5"/>
<Label fx:id="label6"/>
<Label fx:id="label7"/>
<Label fx:id="label8"/>
<Label fx:id="label9"/>
<Label fx:id="label10"/>
<Label fx:id="label11"/>
<Label fx:id="label12"/>
<Label fx:id="label13"/>
<Label fx:id="label14"/>
<Label fx:id="label15"/>
<Label fx:id="label16"/>
<Label fx:id="label17"/>
<Label fx:id="label18"/>
<Label fx:id="label19"/>
<Label fx:id="label20"/>
<Label fx:id="label21"/>
<Label fx:id="label22"/>
<Label fx:id="label23"/>
<Label fx:id="label24"/>
<Label fx:id="label25"/>
<Label fx:id="label26"/>
<Label fx:id="label27"/>
<Label fx:id="label28"/>
<Label fx:id="label29"/>
<Label fx:id="label30"/>
<Label fx:id="label31"/>
<Label fx:id="label32"/>
<Label fx:id="label33"/>
<Label fx:id="label34"/>
<Label fx:id="label35"/>
<Label fx:id="label36"/>
<Label fx:id="label37"/>
<Label fx:id="label38"/>
<Label fx:id="label39"/>
<Label fx:id="label40"/>
<Label fx:id="label41"/>
<Label fx:id="label42"/>
这是一个错误:
Exception in Application start method
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.RuntimeException: Exception in Application start method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$152(LauncherImpl.java:182)
at com.sun.javafx.application.LauncherImpl$$Lambda$50/1343441044.run(Unknown Source)
at java.lang.Thread.run(Thread.java:745)
Caused by: javafx.fxml.LoadException:
file:/C:/Users/Brent/Documents/NetBeansProjects/RiskFXML/dist/run1282679996/RiskFXML.jar!/riskfxml/FXML.fxml:34
at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2605)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2547)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2445)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3218)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3179)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3152)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3128)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3108)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3101)
at riskfxml.RiskFXML.start(RiskFXML.java:22)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$159(LauncherImpl.java:863)
at com.sun.javafx.application.LauncherImpl$$Lambda$53/1527242123.run(Unknown Source)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$172(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl$$Lambda$45/355629945.run(Unknown Source)
at com.sun.javafx.application.PlatformImpl.lambda$null$170(PlatformImpl.java:295)
at com.sun.javafx.application.PlatformImpl$$Lambda$48/1753953479.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$171(PlatformImpl.java:294)
at com.sun.javafx.application.PlatformImpl$$Lambda$47/1915503092.run(Unknown Source)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$145(WinApplication.java:101)
at com.sun.glass.ui.win.WinApplication$$Lambda$36/1963387170.run(Unknown Source)
... 1 more
Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[34,38]
Message: Element type "Label" must be followed by either attribute specifications, ">" or "/>".
at com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.next(XMLStreamReaderImpl.java:601)
at javax.xml.stream.util.StreamReaderDelegate.next(StreamReaderDelegate.java:88)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2517)
... 22 more
Exception running application riskfxml.RiskFXML
Java Result: 1
更新
好的,所以我删除了所有的'=new Label(),这消除了错误,因为问题是通过在fxml和控制器中定义它们,我试图添加重复的元素。现在我的问题是,我如何将标签添加到fxml中的gridpane中,与我在示例控制器代码底部的循环中添加标签时的位置相同?有没有一种方法可以将它们添加到fxml中的数组列表中,然后添加?我知道我可以做
<Label fx:id="label1" onMouseClicked="#labelAction" GridPane.columnIndex="0" GridPane.rowIndex="0" />
对于每个标签,但必须有一种比手工键入和放置每个标签更好的方法,对吗?它们只需要在增加的行中位于同一列中。
我遇到了一个与您类似的问题,并以不同的方式解决了它:在标签顶部创建一个按钮,并将不透明度指定为0。
这样,按钮不会显示给最终用户,但当他们单击标签时,底层按钮会执行操作。由于它是一个标准的javafx按钮,您只需使用onAction="#yourAction",甚至不必更改Label中的任何内容。
希望这能有所帮助!