I've generated FXML in Scene Builder:
<?xml version="1.0" encoding="UTF-8"?>
<?scenebuilder-preview-i18n-resource ../lang/ru_RU.properties?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane id="AnchorPane" fx:id="mainStagePane" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="UI.MainStageController">
<children>
<SplitPane dividerPositions="0.6596244131455399" focusTraversable="true" prefHeight="-1.0" prefWidth="1280.0" AnchorPane.bottomAnchor="30.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="160.0">
<items>
<AnchorPane id="rootPane" fx:id="pane3d" prefHeight="930.0" prefWidth="1280.0" />
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="160.0" prefWidth="100.0">
<children>
<Accordion id="accordeon" fx:id="accordion" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<panes>
<TitledPane animated="true" text="%3dSceneSettings" fx:id="x2">
<content>
<AnchorPane id="Content" minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
<children>
<Slider fx:id="farClipSlider" layoutY="50.0" majorTickUnit="10.0" max="100.0" min="-100.0" minorTickCount="1" prefWidth="337.0" showTickLabels="true" showTickMarks="true" AnchorPane.leftAnchor="14.0" AnchorPane.rightAnchor="75.0" />
<TextField layoutY="14.0" prefWidth="55.0" AnchorPane.rightAnchor="217.0" />
<Slider fx:id="distanceSlider" blockIncrement="25.0" layoutX="14.0" layoutY="133.0" majorTickUnit="50.0" max="500.0" min="-500.0" minorTickCount="25" prefWidth="399.0" showTickLabels="true" showTickMarks="true" snapToTicks="true" />
<VBox layoutY="364.0" prefHeight="200.0" prefWidth="100.0" AnchorPane.leftAnchor="14.0" AnchorPane.rightAnchor="14.0">
<children>
<HBox prefHeight="-1.0" prefWidth="-1.0">
<children>
<Label text="Label" />
<TextField prefWidth="55.0" />
</children>
</HBox>
<Slider fx:id="nearClipSlider" blockIncrement="1.0" majorTickUnit="10.0" max="100.0" min="-100.0" minorTickCount="1" prefWidth="338.0" showTickLabels="true" showTickMarks="true" snapToTicks="true" value="0.0" />
</children>
</VBox>
<Label layoutX="104.0" layoutY="17.0" text="Label" />
</children>
</AnchorPane>
</content>
</TitledPane>
<TitledPane animated="true" expanded="false" text="%3dModelSettings" fx:id="x1">
<content>
<AnchorPane id="Content" minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0" />
</content>
</TitledPane>
</panes>
</Accordion>
</children>
</AnchorPane>
</items>
</SplitPane>
<ToolBar maxHeight="30.0" minHeight="30.0" prefHeight="30.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0">
<items>
<ProgressBar fx:id="loadProgressBar" disable="false" prefWidth="200.0" progress="0.0" visible="true" />
</items>
</ToolBar>
<TabPane prefHeight="160.0" prefWidth="200.0" tabClosingPolicy="UNAVAILABLE" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<tabs>
<Tab text="%file">
<content>
<AnchorPane id="Content" minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
<children>
<Button alignment="CENTER" graphicTextGap="4.0" mnemonicParsing="false" prefHeight="90.0" prefWidth="90.0" text="%openFile" textAlignment="CENTER" textOverrun="ELLIPSIS" underline="false" wrapText="true" AnchorPane.leftAnchor="14.0" AnchorPane.topAnchor="14.0" />
<Separator layoutX="170.0" orientation="VERTICAL" prefHeight="200.0" AnchorPane.bottomAnchor="10.0" AnchorPane.topAnchor="10.0" />
</children>
</AnchorPane>
</content>
</Tab>
<Tab text="%analysis">
<content>
<AnchorPane id="Content" minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
<children>
<Button mnemonicParsing="false" prefHeight="90.0" prefWidth="90.0" text="Button" AnchorPane.leftAnchor="14.0" AnchorPane.topAnchor="14.0" />
</children>
</AnchorPane>
</content>
</Tab>
</tabs>
</TabPane>
</children>
</AnchorPane>
But suddenly I received the following exception:
javafx.fxml.LoadException:
/D:/Projects/CastAnalytics/out/production/CastAnalytics/UI/MainStage.fxml
at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2592)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2570)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2416)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3160)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3121)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3094)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3070)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3062)
at core.CastAnalytics.start(CastAnalytics.java:32)
at com.sun.javafx.application.LauncherImpl$8.run(LauncherImpl.java:837)
at com.sun.javafx.application.PlatformImpl$7.run(PlatformImpl.java:331)
at com.sun.javafx.application.PlatformImpl$6$1.run(PlatformImpl.java:297)
at com.sun.javafx.application.PlatformImpl$6$1.run(PlatformImpl.java:294)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl$6.run(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.access$300(WinApplication.java:39)
at com.sun.glass.ui.win.WinApplication$4$1.run(WinApplication.java:112)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.NullPointerException
at UI.MainStageController.set(MainStageController.java:98)
at UI.MainStageController.initialize(MainStageController.java:34)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2523)
... 18 more
What does it mean and how can I fix it?
Well, you've got a null pointer at line 98 of MainStageController....
If I had to guess, I'd say that one of the #FXML variables you've defined in your Controller isn't named the same as in your FXML file, so you're getting a NPE.
You'd have to paste the relevant MainStageController.java code for anyone to know more.
Please post the offending line or SSCE if possible. I agree with jhsheets and your approach double checking the variable names against your fx:id names. I have encountered this exact error/situation myself at exactly the same place (in the initialize method trying to do some post-loading initialization) where a small typo in my fx:I'd caused an NPE. But it would be good to know what is going on in the set method where the NPE originates.
Related
I have created my view for a JavaFX project using FXML. I was wondering if it's possible to add a few more items to the view pragmatically in controller class?
For example, how can I add another set of Text and TextField in my controller file?
FXML
<AnchorPane prefHeight="400.0" prefWidth="228.0">
<children>
<Text layoutY="10.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Selected User:" GridPane.rowIndex="0" />
<Text layoutY="45.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Username :" GridPane.rowIndex="1" />
<TextField fx:id="username" layoutY="55.0" GridPane.rowIndex="2" />
<Text layoutY="100.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Address :" GridPane.rowIndex="3" />
<TextField fx:id="address" layoutY="110.0" GridPane.rowIndex="4" />
<Text layoutY="155.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Web Page :" GridPane.rowIndex="5" />
<TextField fx:id="WP" layoutY="165.0" GridPane.rowIndex="6" />
<Text layoutY="210.0" strokeType="OUTSIDE" strokeWidth="0.0" text="State :" GridPane.rowIndex="7" />
<Text layoutY="265.0" strokeType="OUTSIDE" strokeWidth="0.0" text="Login Name :" GridPane.rowIndex="9" />
<TextField fx:id="login_Name" layoutY="275.0" GridPane.rowIndex="10" />
<Button fx:id="btnSave" layoutX="50.0" layoutY="320.0" mnemonicParsing="false" onAction="#btnSaveClicked" text="Save" />
<Button fx:id="btnSave" layoutX="35.0" layoutY="365.0" mnemonicParsing="false" onAction="#btnDeleteUserClicked" text="Delete User" />
<Button fx:id="btnAddNew" layoutX="30.0" layoutY="410.0" mnemonicParsing="false" onAction="#btnAddeNewClicked" text="Add New User" />
<TextField fx:id="state" layoutX="-2.0" layoutY="222.0" />
</children>
</AnchorPane>
Adding New Nodes in FXML
I would say, you should always add new nodes to the FXML unless you have a very good reason not to. Adding nodes to FXML is as easy as adding an extra line to the existing FXML.
<AnchorPane prefHeight="400.0" prefWidth="228.0">
<children>
...
<Text fx:id="newText"/>
<TextField fx:id="newTextField"/>
</children>
</AnchorPane>
These new nodes will be reflected in the scene graph instantaneously and you can bind them to the controller using their fx:id's.
Adding New Nodes in Controller
First, you should have a fx:id defined for the AnchorPane in order to access it in the controller.
<AnchorPane fx:id="anchorPane" prefHeight="400.0" prefWidth="228.0">
<children>
...
</children>
</AnchorPane>
You can then define the new controls and add them the to AnchorPane in the controller.
public class MyController implements Initializable {
#FXML
private AnchorPane anchorPane;
...
public void intialize() {
...
Text newText = new Text("Some Text");
TextField newTextField = new TextField();
anchorPane.getChildren().addAll(newText, newTextField);
...
}
}
I am using an fxml file to to create my java fx UI.
the file is:-
<?import java.lang.String?>
<?import javafx.collections.FXCollections?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.ComboBox?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.TableColumn?>
<?import javafx.scene.control.TableView?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.ColumnConstraints?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.layout.HBox?>
<?import javafx.scene.layout.RowConstraints?>
<?import javafx.scene.layout.VBox?>
<AnchorPane fx:id="ap" maxHeight="1.7976931348623157E308"
maxWidth="1.7976931348623157E308" minHeight="-Infinity" minWidth="-Infinity"
prefHeight="480.0" prefWidth="840.0" xmlns="http://javafx.com/javafx/8.0.65"
xmlns:fx="http://javafx.com/fxml/1" fx:controller="ch.Buildsapp.Main.BuildsController">
<children>
<VBox prefHeight="200.0" prefWidth="100.0"
AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0"
AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<children>
<HBox alignment="CENTER_LEFT" spacing="20.0" VBox.vgrow="NEVER">
<padding>
<Insets bottom="12.0" left="12.0" right="12.0" top="12.0" />
</padding>
<children>
<GridPane hgap="10.0" HBox.hgrow="NEVER">
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" />
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" />
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" />
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" />
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" />
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" />
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints minHeight="10.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0"
vgrow="SOMETIMES" />
</rowConstraints>
<children>
<Label prefHeight="21.0" prefWidth="88.0" text="Platform" />
<ComboBox fx:id="versionCombo" prefHeight="31.0"
prefWidth="108.0" GridPane.rowIndex="1">
<items>
<FXCollections fx:factory="observableArrayList">
<String fx:value="Win" />
<String fx:value="Mac" />
</FXCollections>
</items>
<value>
<String fx:value="Mac" />
</value>
</ComboBox>
<Label prefHeight="21.0" prefWidth="80.0" text="Product"
GridPane.columnIndex="1" />
<ComboBox fx:id="verCombo" prefHeight="31.0" prefWidth="127.0"
promptText="build" GridPane.columnIndex="1" GridPane.rowIndex="1">
<items>
<FXCollections fx:factory="observableArrayList">
<String fx:value="build" />
<String fx:value="build2" />
</FXCollections>
</items>
</ComboBox>
<Label text="Version" GridPane.columnIndex="2" />
<ComboBox fx:id="versionNo" prefHeight="31.0"
prefWidth="109.0" GridPane.columnIndex="2" GridPane.rowIndex="1" />
<Label prefHeight="21.0" prefWidth="60.0" text="Server"
GridPane.columnIndex="3" />
<ComboBox fx:id="locCombo" prefHeight="31.0" prefWidth="103.0"
GridPane.columnIndex="3" GridPane.rowIndex="1">
<items>
<FXCollections fx:factory="observableArrayList">
<String fx:value="SJ" />
<String fx:value="MN" />
</FXCollections>
</items>
<value>
<String fx:value="SJ" />
</value>
</ComboBox>
<Button fx:id="downloadButton" minWidth="80.0"
mnemonicParsing="false" text="Download" GridPane.columnIndex="4"
GridPane.rowIndex="1" />
<Button fx:id="installButton" minWidth="80.0"
mnemonicParsing="false" text="Install" GridPane.columnIndex="5"
GridPane.rowIndex="1" />
<Button fx:id="locButton" mnemonicParsing="false"
prefHeight="31.0" prefWidth="120.0" text="Open Folder"
GridPane.columnIndex="6" GridPane.rowIndex="1" />
</children>
</GridPane>
</children>
</HBox>
<TableView fx:id="tableView" VBox.vgrow="ALWAYS">
<columns>
<TableColumn fx:id="builds" prefWidth="482.0" text="Builds" />
<TableColumn fx:id="date" minWidth="0.0" prefWidth="500.0"
text="Date" />
</columns>
</TableView>
</children>
</VBox>
</children>
</AnchorPane>
It works fine in windows while in mac when I launch the app the app window does not appear as expected but it appears as a small window on the top left corner.
The similar issue is appearing with the progress dialog which I am using it works fine in Windows but in mac(OS X) when the app is expanded like when app window size is maximum the progress dialog is also covering the whole display screen while I have given fixed size to scene window.
This is my progress bar code:-
public ProgressBar startProgressBar() {
primaryStage = new Stage();
ProgressBar pb = new ProgressBar(0);
//ProgressIndicator pi = new ProgressIndicator(0);
//pi.progressProperty().bind(pb.progressProperty());
HBox hb = new HBox();
hb.setSpacing(5);
hb.setAlignment(Pos.CENTER);
hb.getChildren().addAll(pb);
Scene scene = new Scene(hb, 300, 100);
primaryStage.setScene(scene);
primaryStage.setTitle("Downloading Build...");
primaryStage.show();
return pb;
}
I am able find the solution for the first issue that can be solved my fixing the minHight and minWidth of the anchor panel to some value in fxml file instead of infinity but I am still not able to find the solution for the second issue.
I'm trying to use a searchbox in another stage by using fxml for the layout.
It it showing absolutely correct,but it doesn't react to any events.It seems that the elements are not found.
What is wrong with my code?
import java.io.IOException;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.stage.*;
import javafx.scene.*;
import javafx.scene.control.Button;
import javafx.scene.control.CheckBox;
import javafx.scene.control.Label;
import javafx.scene.control.Tab;
import javafx.scene.control.TabPane;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
public class SearchBox{
//tabs
#FXML
private static TabPane frepl_tabPane=new TabPane();
#FXML
private static Tab frepl_tabReplace=new Tab();
#FXML
private static Tab frepl_tabSearch=new Tab();
//search
//search Controls
#FXML
private static TextField fr_searchInput=new Textfield();
#FXML
private static Button fr_find=new Button();
private static Stage stage = new Stage();
public static void display(String title) throws IOException {
Parent root = FXMLLoader.load(SearchBox.class.getResource("find_replace.fxml"));
Scene scene = new Scene(root);
stage.setTitle(title);
stage.setScene(scene);
stage.showAndWait();
frepl_tabPane.getSelectionModel().selectedItemProperty().addListener((obs,ov,nv)->{
//no reaction here
stage.setTitle(nv.getText());
System.out.println("pane was tabbed");
});
fr_find.setOnMouseClicked(e ->{
//no reaction here
System.out.println("search");
});
}
To open it i use (inside of the "initialize" function of another FXMLDocumentControler):
btn_search.setOnMouseClicked(e->{
try {
SearchBox.display("search");
} catch (IOException ex) {
Logger.getLogger(FXMLDocumentController.class.getName()).log(Level.SEVERE, null, ex);
}
});
Here is the stack trace(when everything is non static e.g. the class,methods and fields). it appears,when i close the window.
Exception in thread "JavaFX Application Thread" java.lang.NullPointerException
at SearchBox.display(SearchBox.java:133)
at FXMLDocumentController.lambda$A_table_buttons$22(FXMLDocumentController.java:1309)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Scene$ClickGenerator.postProcess(Scene.java:3470)
at javafx.scene.Scene$ClickGenerator.access$8100(Scene.java:3398)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3766)
at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485)
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:352)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:275)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$354(GlassViewEventHandler.java:388)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:387)
at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
at com.sun.glass.ui.View.notifyMouse(View.java:937)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
at java.lang.Thread.run(Thread.java:745)
FXML file:
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.text.*?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<Pane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="508.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
<children>
<TabPane fx:id="frepl_tabPane" layoutX="-1.0" layoutY="2.0" prefHeight="400.0" prefWidth="508.0" tabClosingPolicy="UNAVAILABLE">
<tabs>
<Tab fx:id="frepl_tabSearch" text="Search">
<content>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
<children>
<TableView fx:id="fr_Stableview" layoutY="87.0" prefHeight="287.0" prefWidth="508.0">
<columns>
<TableColumn fx:id="fr_Sline" editable="false" prefWidth="75.0" sortable="false" text="Line" />
<TableColumn fx:id="fr_SColumn" editable="false" prefWidth="61.0" sortable="false" text="Column" />
<TableColumn fx:id="fr_SValue" editable="false" prefWidth="371.0" sortable="false" text="Value" />
</columns>
</TableView>
<TextField fx:id="fr_searchInput" layoutX="66.0" layoutY="13.0" prefHeight="25.0" prefWidth="250.0" />
<Label layoutX="3.0" layoutY="17.0" text="Search for:" />
<Button fx:id="fr_find" layoutX="324.0" layoutY="13.0" mnemonicParsing="false" text="Find" />
<Button fx:id="fr_findAll" layoutX="372.0" layoutY="13.0" mnemonicParsing="false" text="Find All" />
<CheckBox fx:id="fr_matchCaseS" layoutX="324.0" layoutY="53.0" mnemonicParsing="false" text="Match case (Aa)" />
<Label fx:id="fr_foundS" layoutX="8.0" layoutY="70.0" text="found: 5" underline="true">
<font>
<Font name="System Bold Italic" size="12.0" />
</font>
</Label>
</children>
</AnchorPane>
</content>
</Tab>
<Tab fx:id="frepl_tabReplace" text="Replace">
<content>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
<children>
<TableView fx:id="fr_tableviewR" layoutY="107.0" prefHeight="267.0" prefWidth="508.0">
<columns>
<TableColumn fx:id="fr_lineR" prefWidth="75.0" text="Line" />
<TableColumn fx:id="fr_ColumnR" prefWidth="61.0" text="Column" />
<TableColumn fx:id="fr_ValueR" prefWidth="371.0" text="Value" />
</columns>
</TableView>
<CheckBox fx:id="fr_matchCaseR" layoutX="347.0" layoutY="59.0" mnemonicParsing="false" text="Match case (Aa)" />
<Label layoutX="3.0" layoutY="17.0" text="Search for:" />
<Button fx:id="fr_replace" layoutX="347.0" layoutY="11.0" mnemonicParsing="false" text="Replace" />
<TextField fx:id="fr_replaceInput" layoutX="82.0" layoutY="13.0" prefHeight="25.0" prefWidth="250.0" />
<Button fx:id="fr_replaceAll" layoutX="412.0" layoutY="11.0" mnemonicParsing="false" text="Replace All" />
<TextField fx:id="fr_replaceAllInput" layoutX="82.0" layoutY="55.0" prefHeight="25.0" prefWidth="250.0" />
<Label layoutX="3.0" layoutY="59.0" text="Replace with:" />
<Label fx:id="fr_replacedR" layoutX="3.0" layoutY="90.0" text="replaced: 5" underline="true">
<font>
<Font name="System Bold Italic" size="12.0" />
</font>
</Label>
</children>
</AnchorPane>
</content>
</Tab>
</tabs>
</TabPane>
</children>
</Pane>
The question basically says it all, with the caveat that I'm a newbie to GUI design in general and JavaFX in particular. To reproduce in SceneBuilder, drag a TabPane onto the scene, and drag a SplitPane into the first tab's AnchorPane. Adjust (drag) the size of the SplitPane to match the the size of the tab. This is not a problem if the SplitPane is not a child (I only tested it as a (grand)child of a Tab so far). You'll have something like this:
Upon preview, if you try to expand the window size by dragging, the SplitPane won't resize:
Here is the FXML I get from SceneBuilder, using the process described at the top of this post with perhaps a few minor changes that didn't help:
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<TabPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" tabClosingPolicy="UNAVAILABLE" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8">
<tabs>
<Tab text="Untitled Tab 1">
<content>
<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="0.0" minWidth="0.0" prefHeight="386.0" prefWidth="613.0">
<children>
<SplitPane dividerPositions="0.29797979797979796" maxHeight="-Infinity" maxWidth="-Infinity" prefHeight="358.0" prefWidth="600.0">
<items>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="160.0" prefWidth="100.0" />
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="158.0" prefWidth="277.0" />
</items>
</SplitPane>
</children></AnchorPane>
</content>
</Tab>
<Tab text="Untitled Tab 2">
<content>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0" />
</content>
</Tab>
</tabs>
</TabPane>
The problem is that your SplitPane is a child of an AnchorPane. In case you have something under AnchorPane, it is anchored to specific co-ordinates. To allow the child to take up the whole are, you need to specify the AnchorPane's anchor to zero.
<TabPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" tabClosingPolicy="UNAVAILABLE" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8">
<tabs>
....
<SplitPane dividerPositions="0.29797979797979796" maxHeight="-Infinity"
maxWidth="-Infinity" prefHeight="358.0" prefWidth="600.0"
AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0"
AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
....
</tabs>
</TabPane>
Using scene-builder, you can assign the AnchorPane Constraints by:
Select the child under AnchorPane
Move to Layout section on the right hand side panel
You will see a section called AnchorPane constraints, just type in the four section values and save
I create TreeView in .fxml file and then i am trying to show root node. but it's not showing.
Here is my code.
<TabPane prefHeight="289.0" prefWidth="246.0" styleClass="tab-pane" tabClosingPolicy="UNAVAILABLE" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<stylesheets>
<URL value="#main.css" />
</stylesheets>
<tabs>
<Tab text="TestBed Explorer">
<content>
<AnchorPane id="Content" fx:id="soariteAnchorScollparent" minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
<children>
<ScrollPane fx:id="soariteTreeScrollPane" prefHeight="259.0" prefWidth="246.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<content>
<AnchorPane id="Content" fx:id="soariteTreeAnchorPane" minHeight="0.0" minWidth="0.0" prefHeight="249.0" prefWidth="73.0">
<children>
<TreeView fx:id="soariteTree" prefHeight="245.0" prefWidth="79.0" showRoot="true" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="167.0" AnchorPane.topAnchor="0.0">
<TreeItem expanded="true" value="categories" fx:id="rootTreeItem" />
</TreeView>
</children>
</AnchorPane>
</content>
</ScrollPane>
</children>
</AnchorPane>
</content>
</Tab>
</tabs>
</TabPane>
I also give reference of this in main class like.
public class Mainextends Application {
#FXML
public TreeView<String> soariteTree;
#FXML
public TreeItem<String> rootTreeItem;
Please give me any reference or hint.
You have done a small mistake with fxml,
you can see you have written AnchorPane.rightAnchor="167.0" which is making your tree view disappear (and same small mistakes with width of anchor pane and tree view).
replace your of scroll pane with,
<ScrollPane fx:id="soariteTreeScrollPane" prefHeight="259.0" prefWidth="246.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<content>
<AnchorPane id="Content" fx:id="soariteTreeAnchorPane" minHeight="0.0" minWidth="0.0" prefHeight="-1.0" prefWidth="-1.0">
<children>
<TreeView fx:id="soariteTree" prefHeight="-1.0" prefWidth="-1.0" showRoot="true" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<TreeItem expanded="true" value="categories" fx:id="rootTreeItem" />
</TreeView>
</children>
</AnchorPane>
</content>
</ScrollPane>
UPDATE :- Handling of Mouse Event
soariteTree.addEventHandler(MouseEvent.MOUSE_PRESSED, new EventHandler<MouseEvent>() {
#Override
public void handle(MouseEvent event) {
if (event.getButton().equals(MouseButton.SECONDARY)) {
System.out.println(">> " + event.getEventType());
}
}
});
your fxml will be,
<TreeView fx:id="categoryTreeView" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" minWidth="200.0" prefHeight="-1.0" prefWidth="200.0" showRoot="true" styleClass="master-tree" VBox.vgrow="ALWAYS">
<TreeItem expanded="true" value="categories" fx:id="categoryTreeItem" />
</TreeView>
And Your Controller will be,
public class MyClass extends Application {
#FXML private TreeItem<ItemMaster> categoryTreeItem;
#FXML private TreeView<ItemMaster> categoryTreeView;
So you dont need to create a root for your tree. And you are done.