Class ListView<T>
- Type Parameters:
-
T- This type is used to represent the type of the objects stored in the ListViewsitemsObservableList. It is also used in theselection modelandfocus model.
- All Implemented Interfaces:
-
Styleable,EventTarget,Skinnable
@DefaultProperty("items") public class ListView<T> extends Control Populating a ListView
A simple example of how to create and populate a ListView of names (Strings) is shown here:
ObservableList<String> names = FXCollections.observableArrayList(
"Julia", "Ian", "Sue", "Matthew", "Hannah", "Stephan", "Denise");
ListView<String> listView = new ListView<String>(names); The elements of the ListView are contained within the items ObservableList. This ObservableList is automatically observed by the ListView, such that any changes that occur inside the ObservableList will be automatically shown in the ListView itself. If passing the ObservableList in to the ListView constructor is not feasible, the recommended approach for setting the items is to simply call:
ObservableList<T> content = ...
listView.setItems(content); The end result of this is, as noted above, that the ListView will automatically refresh the view to represent the items in the list.
Another approach, whilst accepted by the ListView, is not the recommended approach:
List<T> content = ...
getItems().setAll(content); The issue with the approach shown above is that the content list is being copied into the items list - meaning that subsequent changes to the content list are not observed, and will not be reflected visually within the ListView. ListView Selection / Focus APIs
To track selection and focus, it is necessary to become familiar with the SelectionModel and FocusModel classes. A ListView has at most one instance of each of these classes, available from selectionModel and focusModel properties respectively. Whilst it is possible to use this API to set a new selection model, in most circumstances this is not necessary - the default selection and focus models should work in most circumstances.
The default SelectionModel used when instantiating a ListView is an implementation of the MultipleSelectionModel abstract class. However, as noted in the API documentation for the selectionMode property, the default value is SelectionMode.SINGLE. To enable multiple selection in a default ListView instance, it is therefore necessary to do the following:
listView.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE); Customizing ListView Visuals
The visuals of the ListView can be entirely customized by replacing the default cell factory. A cell factory is used to generate ListCell instances, which are used to represent an item in the ListView. See the Cell class documentation for a more complete description of how to write custom Cells.
Warning: Nodes should not be inserted directly into the items list
ListView allows for the items list to contain elements of any type, including Node instances. Putting nodes into the items list is strongly discouraged, as it can lead to unexpected results. Important points to note:
- Avoid inserting
Nodeinstances directly into the items list or its data model. - The recommended approach is to put the relevant information into the items list, and provide a custom
cell factoryto create the nodes for a given cell and update them on demand using the data stored in the item for that cell. - Avoid creating new
Nodes in theupdateItemmethod of a customcell factory.
The following minimal example shows how to create a custom cell factory for ListView containing Nodes:
ListView<Color> lv = new ListView<>();
lv.getItems().addAll(Color.RED, Color.GREEN, Color.BLUE);
lv.setCellFactory(p -> {
return new ListCell<>() {
private final Rectangle rectangle;
{
setContentDisplay(ContentDisplay.GRAPHIC_ONLY);
rectangle = new Rectangle(10, 10);
}
@Override
protected void updateItem(Color item, boolean empty) {
super.updateItem(item, empty);
if (item == null || empty) {
setGraphic(null);
} else {
rectangle.setFill(item);
setGraphic(rectangle);
}
}
};
}); This example has an anonymous custom ListCell class in the custom cell factory. Note that the Rectangle (Node) object needs to be created in the instance initialization block or the constructor of the custom ListCell class and updated/used in its updateItem method.
Editing
This control supports inline editing of values, and this section attempts to give an overview of the available APIs and how you should use them.
Firstly, cell editing most commonly requires a different user interface than when a cell is not being edited. This is the responsibility of the Cell implementation being used. For ListView, this is the responsibility of the cell factory. It is your choice whether the cell is permanently in an editing state (e.g. this is common for CheckBox cells), or to switch to a different UI when editing begins (e.g. when a double-click is received on a cell).
To know when editing has been requested on a cell, simply override the Cell.startEdit() method, and update the cell text and graphic properties as appropriate (e.g. set the text to null and set the graphic to be a TextField). Additionally, you should also override Cell.cancelEdit() to reset the UI back to its original visual state when the editing concludes. In both cases it is important that you also ensure that you call the super method to have the cell perform all duties it must do to enter or exit its editing mode.
Once your cell is in an editing state, the next thing you are most probably interested in is how to commit or cancel the editing that is taking place. This is your responsibility as the cell factory provider. Your cell implementation will know when the editing is over, based on the user input (e.g. when the user presses the Enter or ESC keys on their keyboard). When this happens, it is your responsibility to call Cell.commitEdit(Object) or Cell.cancelEdit(), as appropriate.
When you call Cell.commitEdit(Object) an event is fired to the ListView, which you can observe by adding an EventHandler via setOnEditCommit(javafx.event.EventHandler). Similarly, you can also observe edit events for edit start and edit cancel.
By default the ListView edit commit handler is non-null, with a default handler that attempts to overwrite the property value for the item in the currently-being-edited row. It is able to do this as the Cell.commitEdit(Object) method is passed in the new value, and this is passed along to the edit commit handler via the ListView.EditEvent that is fired. It is simply a matter of calling ListView.EditEvent.getNewValue() to retrieve this value.
It is very important to note that if you call setOnEditCommit(javafx.event.EventHandler) with your own EventHandler, then you will be removing the default handler. Unless you then handle the writeback to the property (or the relevant data source), nothing will happen. You can work around this by using the Node.addEventHandler(javafx.event.EventType, javafx.event.EventHandler) method to add a editCommitEvent() EventType with your desired EventHandler as the second argument. Using this method, you will not replace the default implementation, but you will be notified when an edit commit has occurred.
Hopefully this summary answers some of the commonly asked questions. Fortunately, JavaFX ships with a number of pre-built cell factories that handle all the editing requirements on your behalf. You can find these pre-built cell factories in the javafx.scene.control.cell package.
- Since:
- JavaFX 2.0
- See Also:
Nested Class Summary
| Modifier and Type | Class | Description |
|---|---|---|
static class |
ListView.EditEvent<T> |
An Event subclass used specifically in ListView for representing edit-related events. |
Property Summary
| Type | Property | Description |
|---|---|---|
final ObjectProperty |
cellFactory |
Setting a custom cell factory has the effect of deferring all cell creation, allowing for total customization of the cell. |
final BooleanProperty |
editable |
Specifies whether this ListView is editable - only if the ListView and the ListCells within it are both editable will a ListCell be able to go into their editing state. |
final ReadOnlyIntegerProperty |
editingIndex |
A property used to represent the index of the item currently being edited in the ListView, if editing is taking place, or -1 if no item is being edited. |
final DoubleProperty |
fixedCellSize |
Specifies whether this control has cells that are a fixed height (of the specified value). |
final ObjectProperty |
focusModel |
The FocusModel provides the API through which it is possible to both get and set the focus on a single item within a ListView. |
final ObjectProperty |
items |
The underlying data model for the ListView. |
final ObjectProperty |
onEditCancel |
This event handler will be fired when the user cancels editing a cell. |
final ObjectProperty |
onEditCommit |
This property is used when the user performs an action that should result in their editing input being persisted. |
final ObjectProperty |
onEditStart |
This event handler will be fired when the user successfully initiates editing. |
final ObjectProperty |
onScrollTo |
Called when there's a request to scroll an index into view using scrollTo(int) or scrollTo(Object)
|
final ObjectProperty |
orientation |
The orientation of the ListView - this can either be horizontal or vertical. |
final ObjectProperty |
placeholder |
The Node to show to the user when the ListView has no content to show. |
final ObjectProperty |
selectionModel |
The SelectionModel provides the API through which it is possible to select single or multiple items within a ListView, as well as inspect which items have been selected by the user. |
Properties declared in class javafx.scene.control.Control
contextMenu, skin, tooltip
Properties declared in class javafx.scene.layout.Region
background, border, cacheShape, centerShape, height, insets, maxHeight, maxWidth, minHeight, minWidth, opaqueInsets, padding, prefHeight, prefWidth, scaleShape, shape, snapToPixel, width
Properties declared in class javafx.scene.Parent
needsLayout
Properties declared in class javafx.scene.Node
accessibleHelp, accessibleRoleDescription, accessibleRole, accessibleText, blendMode, boundsInLocal, boundsInParent, cacheHint, cache, clip, cursor, depthTest, disabled, disable, effectiveNodeOrientation, effect, eventDispatcher, focused, focusTraversable, focusVisible, focusWithin, hover, id, inputMethodRequests, layoutBounds, layoutX, layoutY, localToParentTransform, localToSceneTransform, managed, mouseTransparent, nodeOrientation, onContextMenuRequested, onDragDetected, onDragDone, onDragDropped, onDragEntered, onDragExited, onDragOver, onInputMethodTextChanged, onKeyPressed, onKeyReleased, onKeyTyped, onMouseClicked, onMouseDragEntered, onMouseDragExited, onMouseDragged, onMouseDragOver, onMouseDragReleased, onMouseEntered, onMouseExited, onMouseMoved, onMousePressed, onMouseReleased, onRotate, onRotationFinished, onRotationStarted, onScrollFinished, onScroll, onScrollStarted, onSwipeDown, onSwipeLeft, onSwipeRight, onSwipeUp, onTouchMoved, onTouchPressed, onTouchReleased, onTouchStationary, onZoomFinished, onZoom, onZoomStarted, opacity, parent, pickOnBounds, pressed, rotate, rotationAxis, scaleX, scaleY, scaleZ, scene, style, translateX, translateY, translateZ, viewOrder, visible
Field Summary
Fields declared in class javafx.scene.layout.Region
USE_COMPUTED_SIZE, USE_PREF_SIZE
Fields declared in class javafx.scene.Node
BASELINE_OFFSET_SAME_AS_HEIGHT
Constructor Summary
| Constructor | Description |
|---|---|
ListView() |
Creates a default ListView which will display contents stacked vertically. |
ListView |
Creates a default ListView which will stack the contents retrieved from the provided ObservableList vertically. |
Method Summary
| Modifier and Type | Method | Description |
|---|---|---|
final ObjectProperty |
cellFactoryProperty() |
Setting a custom cell factory has the effect of deferring all cell creation, allowing for total customization of the cell. |
void |
edit |
Instructs the ListView to begin editing the item in the given index, if the ListView is editable. |
final BooleanProperty |
editableProperty() |
Specifies whether this ListView is editable - only if the ListView and the ListCells within it are both editable will a ListCell be able to go into their editing state. |
static <T> EventType |
editAnyEvent() |
An EventType that indicates some edit event has occurred. |
static <T> EventType |
editCancelEvent() |
An EventType used to indicate that an edit event has just been canceled within the ListView upon which the event was fired. |
static <T> EventType |
editCommitEvent() |
An EventType used to indicate that an edit event has been committed within the ListView upon which the event was fired. |
final ReadOnlyIntegerProperty |
editingIndexProperty() |
A property used to represent the index of the item currently being edited in the ListView, if editing is taking place, or -1 if no item is being edited. |
static <T> EventType |
editStartEvent() |
An EventType used to indicate that an edit event has started within the ListView upon which the event was fired. |
final DoubleProperty |
fixedCellSizeProperty() |
Specifies whether this control has cells that are a fixed height (of the specified value). |
final ObjectProperty |
focusModelProperty() |
The FocusModel provides the API through which it is possible to both get and set the focus on a single item within a ListView. |
final Callback |
getCellFactory() |
Returns the current cell factory. |
static List |
getClassCssMetaData() |
Gets the CssMetaData associated with this class, which may include the CssMetaData of its superclasses. |
List |
getControlCssMetaData() |
Gets the unmodifiable list of the control's CSS-styleable properties. |
final int |
getEditingIndex() |
Returns the index of the item currently being edited in the ListView, or -1 if no item is being edited. |
final double |
getFixedCellSize() |
Returns the fixed cell size value. |
final FocusModel |
getFocusModel() |
Returns the currently installed FocusModel. |
final ObservableList |
getItems() |
Returns an ObservableList that contains the items currently being shown to the user. |
final EventHandler |
getOnEditCancel() |
Returns the EventHandler that will be called when the user cancels an edit. |
final EventHandler |
getOnEditCommit() |
Returns the EventHandler that will be called when the user commits an edit. |
final EventHandler |
getOnEditStart() |
Returns the EventHandler that will be called when the user begins an edit. |
final EventHandler |
getOnScrollTo() |
Gets the value of the onScrollTo property. |
final Orientation |
getOrientation() |
Returns the current orientation of the ListView, which dictates whether it scrolls vertically or horizontally. |
final Node |
getPlaceholder() |
Gets the value of the placeholder property. |
final MultipleSelectionModel |
getSelectionModel() |
Returns the currently installed selection model. |
final boolean |
isEditable() |
Gets the value of the editable property. |
final ObjectProperty |
itemsProperty() |
The underlying data model for the ListView. |
final ObjectProperty |
onEditCancelProperty() |
This event handler will be fired when the user cancels editing a cell. |
final ObjectProperty |
onEditCommitProperty() |
This property is used when the user performs an action that should result in their editing input being persisted. |
final ObjectProperty |
onEditStartProperty() |
This event handler will be fired when the user successfully initiates editing. |
final ObjectProperty |
onScrollToProperty() |
Called when there's a request to scroll an index into view using scrollTo(int) or scrollTo(Object)
|
final ObjectProperty |
orientationProperty() |
The orientation of the ListView - this can either be horizontal or vertical. |
final ObjectProperty |
placeholderProperty() |
The Node to show to the user when the ListView has no content to show. |
void |
refresh() |
Calling refresh() forces the ListView control to recreate and repopulate the cells necessary to populate the visual bounds of the control. |
void |
scrollTo |
Scrolls the ListView such that the item in the given index is visible to the end user. |
void |
scrollTo |
Scrolls the ListView so that the given object is visible within the viewport. |
final ObjectProperty |
selectionModelProperty() |
The SelectionModel provides the API through which it is possible to select single or multiple items within a ListView, as well as inspect which items have been selected by the user. |
final void |
setCellFactory |
Sets a new cell factory to use in the ListView. |
final void |
setEditable |
Sets the value of the editable property. |
final void |
setFixedCellSize |
Sets the new fixed cell size for this control. |
final void |
setFocusModel |
Sets the FocusModel to be used in the ListView. |
final void |
setItems |
Sets the underlying data model for the ListView. |
final void |
setOnEditCancel |
Sets the EventHandler that will be called when the user cancels an edit. |
final void |
setOnEditCommit |
Sets the EventHandler that will be called when the user has completed their editing. |
final void |
setOnEditStart |
Sets the EventHandler that will be called when the user begins an edit. |
final void |
setOnScrollTo |
Sets the value of the onScrollTo property. |
final void |
setOrientation |
Sets the orientation of the ListView, which dictates whether it scrolls vertically or horizontally. |
final void |
setPlaceholder |
Sets the value of the placeholder property. |
final void |
setSelectionModel |
Sets the MultipleSelectionModel to be used in the ListView. |
Methods declared in class javafx.scene.control.Control
computeMaxHeight, computeMaxWidth, computeMinHeight, computeMinWidth, contextMenuProperty, createDefaultSkin, getContextMenu, getCssMetaData, getInitialFocusTraversable, getSkin, getTooltip, isResizable, setContextMenu, setSkin, setTooltip, skinProperty, tooltipProperty
Methods declared in class javafx.scene.layout.Region
backgroundProperty, borderProperty, cacheShapeProperty, centerShapeProperty, computePrefHeight, computePrefWidth, getBackground, getBorder, getHeight, getInsets, getMaxHeight, getMaxWidth, getMinHeight, getMinWidth, getOpaqueInsets, getPadding, getPrefHeight, getPrefWidth, getShape, getUserAgentStylesheet, getWidth, heightProperty, insetsProperty, isCacheShape, isCenterShape, isScaleShape, isSnapToPixel, layoutInArea, layoutInArea, layoutInArea, layoutInArea, maxHeight, maxHeightProperty, maxWidth, maxWidthProperty, minHeight, minHeightProperty, minWidth, minWidthProperty, opaqueInsetsProperty, paddingProperty, positionInArea, positionInArea, prefHeight, prefHeightProperty, prefWidth, prefWidthProperty, resize, scaleShapeProperty, setBackground, setBorder, setCacheShape, setCenterShape, setHeight, setMaxHeight, setMaxSize, setMaxWidth, setMinHeight, setMinSize, setMinWidth, setOpaqueInsets, setPadding, setPrefHeight, setPrefSize, setPrefWidth, setScaleShape, setShape, setSnapToPixel, setWidth, shapeProperty, snappedBottomInset, snappedLeftInset, snappedRightInset, snappedTopInset, snapPosition, snapPositionX, snapPositionY, snapSize, snapSizeX, snapSizeY, snapSpace, snapSpaceX, snapSpaceY, snapToPixelProperty, widthProperty
Methods declared in class javafx.scene.Parent
getBaselineOffset, getChildren, getChildrenUnmodifiable, getManagedChildren, getStylesheets, isNeedsLayout, layout, layoutChildren, needsLayoutProperty, requestLayout, requestParentLayout, setNeedsLayout, updateBounds
Methods declared in class javafx.scene.Node
accessibleHelpProperty, accessibleRoleDescriptionProperty, accessibleRoleProperty, accessibleTextProperty, addEventFilter, addEventHandler, applyCss, autosize, blendModeProperty, boundsInLocalProperty, boundsInParentProperty, buildEventDispatchChain, cacheHintProperty, cacheProperty, clipProperty, computeAreaInScreen, contains, contains, cursorProperty, depthTestProperty, disabledProperty, disableProperty, effectiveNodeOrientationProperty, effectProperty, eventDispatcherProperty, executeAccessibleAction, fireEvent, focusedProperty, focusTraversableProperty, focusVisibleProperty, focusWithinProperty, getAccessibleHelp, getAccessibleRole, getAccessibleRoleDescription, getAccessibleText, getBlendMode, getBoundsInLocal, getBoundsInParent, getCacheHint, getClip, getContentBias, getCursor, getDepthTest, getEffect, getEffectiveNodeOrientation, getEventDispatcher, getId, getInitialCursor, getInputMethodRequests, getLayoutBounds, getLayoutX, getLayoutY, getLocalToParentTransform, getLocalToSceneTransform, getNodeOrientation, getOnContextMenuRequested, getOnDragDetected, getOnDragDone, getOnDragDropped, getOnDragEntered, getOnDragExited, getOnDragOver, getOnInputMethodTextChanged, getOnKeyPressed, getOnKeyReleased, getOnKeyTyped, getOnMouseClicked, getOnMouseDragEntered, getOnMouseDragExited, getOnMouseDragged, getOnMouseDragOver, getOnMouseDragReleased, getOnMouseEntered, getOnMouseExited, getOnMouseMoved, getOnMousePressed, getOnMouseReleased, getOnRotate, getOnRotationFinished, getOnRotationStarted, getOnScroll, getOnScrollFinished, getOnScrollStarted, getOnSwipeDown, getOnSwipeLeft, getOnSwipeRight, getOnSwipeUp, getOnTouchMoved, getOnTouchPressed, getOnTouchReleased, getOnTouchStationary, getOnZoom, getOnZoomFinished, getOnZoomStarted, getOpacity, getParent, getProperties, getPseudoClassStates, getRotate, getRotationAxis, getScaleX, getScaleY, getScaleZ, getScene, getStyle, getStyleableParent, getStyleClass, getTransforms, getTranslateX, getTranslateY, getTranslateZ, getTypeSelector, getUserData, getViewOrder, hasProperties, hoverProperty, idProperty, inputMethodRequestsProperty, intersects, intersects, isCache, isDisable, isDisabled, isFocused, isFocusTraversable, isFocusVisible, isFocusWithin, isHover, isManaged, isMouseTransparent, isPickOnBounds, isPressed, isVisible, layoutBoundsProperty, layoutXProperty, layoutYProperty, localToParent, localToParent, localToParent, localToParent, localToParent, localToParentTransformProperty, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToScene, localToSceneTransformProperty, localToScreen, localToScreen, localToScreen, localToScreen, localToScreen, lookup, lookupAll, managedProperty, mouseTransparentProperty, nodeOrientationProperty, notifyAccessibleAttributeChanged, onContextMenuRequestedProperty, onDragDetectedProperty, onDragDoneProperty, onDragDroppedProperty, onDragEnteredProperty, onDragExitedProperty, onDragOverProperty, onInputMethodTextChangedProperty, onKeyPressedProperty, onKeyReleasedProperty, onKeyTypedProperty, onMouseClickedProperty, onMouseDragEnteredProperty, onMouseDragExitedProperty, onMouseDraggedProperty, onMouseDragOverProperty, onMouseDragReleasedProperty, onMouseEnteredProperty, onMouseExitedProperty, onMouseMovedProperty, onMousePressedProperty, onMouseReleasedProperty, onRotateProperty, onRotationFinishedProperty, onRotationStartedProperty, onScrollFinishedProperty, onScrollProperty, onScrollStartedProperty, onSwipeDownProperty, onSwipeLeftProperty, onSwipeRightProperty, onSwipeUpProperty, onTouchMovedProperty, onTouchPressedProperty, onTouchReleasedProperty, onTouchStationaryProperty, onZoomFinishedProperty, onZoomProperty, onZoomStartedProperty, opacityProperty, parentProperty, parentToLocal, parentToLocal, parentToLocal, parentToLocal, parentToLocal, pickOnBoundsProperty, pressedProperty, pseudoClassStateChanged, queryAccessibleAttribute, relocate, removeEventFilter, removeEventHandler, requestFocus, requestFocusTraversal, resizeRelocate, rotateProperty, rotationAxisProperty, scaleXProperty, scaleYProperty, scaleZProperty, sceneProperty, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, sceneToLocal, screenToLocal, screenToLocal, screenToLocal, setAccessibleHelp, setAccessibleRole, setAccessibleRoleDescription, setAccessibleText, setBlendMode, setCache, setCacheHint, setClip, setCursor, setDepthTest, setDisable, setDisabled, setEffect, setEventDispatcher, setEventHandler, setFocused, setFocusTraversable, setHover, setId, setInputMethodRequests, setLayoutX, setLayoutY, setManaged, setMouseTransparent, setNodeOrientation, setOnContextMenuRequested, setOnDragDetected, setOnDragDone, setOnDragDropped, setOnDragEntered, setOnDragExited, setOnDragOver, setOnInputMethodTextChanged, setOnKeyPressed, setOnKeyReleased, setOnKeyTyped, setOnMouseClicked, setOnMouseDragEntered, setOnMouseDragExited, setOnMouseDragged, setOnMouseDragOver, setOnMouseDragReleased, setOnMouseEntered, setOnMouseExited, setOnMouseMoved, setOnMousePressed, setOnMouseReleased, setOnRotate, setOnRotationFinished, setOnRotationStarted, setOnScroll, setOnScrollFinished, setOnScrollStarted, setOnSwipeDown, setOnSwipeLeft, setOnSwipeRight, setOnSwipeUp, setOnTouchMoved, setOnTouchPressed, setOnTouchReleased, setOnTouchStationary, setOnZoom, setOnZoomFinished, setOnZoomStarted, setOpacity, setPickOnBounds, setPressed, setRotate, setRotationAxis, setScaleX, setScaleY, setScaleZ, setStyle, setTranslateX, setTranslateY, setTranslateZ, setUserData, setViewOrder, setVisible, snapshot, snapshot, startDragAndDrop, startFullDrag, styleProperty, toBack, toFront, toString, translateXProperty, translateYProperty, translateZProperty, usesMirroring, viewOrderProperty, visibleProperty
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods declared in interface javafx.css.Styleable
getStyleableNode
Property Details
items
public final ObjectProperty<ObservableList<T>> itemsProperty
- See Also:
placeholder
public final ObjectProperty<Node> placeholderProperty
Node to show to the user when the ListView has no content to show. This happens when the list model has no data or when a filter has been applied to the list model, resulting in there being nothing to show the user.- Since:
- JavaFX 8.0
- See Also:
selectionModel
public final ObjectProperty<MultipleSelectionModel<T>> selectionModelProperty
- See Also:
focusModel
public final ObjectProperty<FocusModel<T>> focusModelProperty
- See Also:
orientation
public final ObjectProperty<Orientation> orientationProperty
ListView - this can either be horizontal or vertical.- See Also:
cellFactory
public final ObjectProperty<Callback<ListView<T>,ListCell<T>>> cellFactoryProperty
Setting a custom cell factory has the effect of deferring all cell creation, allowing for total customization of the cell. Internally, the ListView is responsible for reusing ListCells - all that is necessary is for the custom cell factory to return from this function a ListCell which might be usable for representing any item in the ListView.
Refer to the Cell class documentation for more detail.
- See Also:
fixedCellSize
public final DoubleProperty fixedCellSizeProperty
To set this property via CSS, use the -fx-fixed-cell-size property. This should not be confused with the -fx-cell-size property. The difference between these two CSS properties is that -fx-cell-size will size all cells to the specified size, but it will not enforce that this is the only size (thus allowing for variable cell sizes, and preventing the performance gains from being possible). Therefore, when performance matters use -fx-fixed-cell-size, instead of -fx-cell-size. If both properties are specified in CSS, -fx-fixed-cell-size takes precedence.
- Since:
- JavaFX 8.0
- See Also:
editable
public final BooleanProperty editableProperty
- See Also:
editingIndex
public final ReadOnlyIntegerProperty editingIndexProperty
A property used to represent the index of the item currently being edited in the ListView, if editing is taking place, or -1 if no item is being edited.
It is not possible to set the editing index, instead it is required that you call edit(int).
- See Also:
onEditStart
public final ObjectProperty<EventHandler<ListView.EditEvent<T>>> onEditStartProperty
- See Also:
onEditCommit
public final ObjectProperty<EventHandler<ListView.EditEvent<T>>> onEditCommitProperty
This property is used when the user performs an action that should result in their editing input being persisted.
The EventHandler in this property should not be called directly - instead call Cell.commitEdit(java.lang.Object) from within your custom ListCell. This will handle firing this event, updating the view, and switching out of the editing state.
- See Also:
onEditCancel
public final ObjectProperty<EventHandler<ListView.EditEvent<T>>> onEditCancelProperty
- See Also:
onScrollTo
public final ObjectProperty<EventHandler<ScrollToEvent<Integer>>> onScrollToProperty
scrollTo(int) or scrollTo(Object)
- Since:
- JavaFX 8.0
- See Also:
Constructor Details
ListView
public ListView()
ObservableList is provided in this constructor, an empty ObservableList is created, meaning that it is legal to directly call getItems() if so desired. However, as noted elsewhere, this is not the recommended approach (instead call setItems(javafx.collections.ObservableList)). Refer to the ListView class documentation for details on the default state of other properties.
ListView
public ListView(ObservableList<T> items)
ObservableList vertically. Attempts to add a listener to the ObservableList, such that all subsequent changes inside the list will be shown to the user.
Refer to the ListView class documentation for details on the default state of other properties.
- Parameters:
-
items- the list of items
Method Details
editAnyEvent
public static <T> EventType<ListView.EditEvent<T>> editAnyEvent()
editStartEvent(), editCommitEvent() and editCancelEvent().- Type Parameters:
-
T- the type of the objects stored in this ListView - Returns:
- the event type
editStartEvent
public static <T> EventType<ListView.EditEvent<T>> editStartEvent()
- Type Parameters:
-
T- the type of the objects stored in this ListView - Returns:
- the event type
editCancelEvent
public static <T> EventType<ListView.EditEvent<T>> editCancelEvent()
- Type Parameters:
-
T- the type of the objects stored in this ListView - Returns:
- the event type
editCommitEvent
public static <T> EventType<ListView.EditEvent<T>> editCommitEvent()
- Type Parameters:
-
T- the type of the objects stored in this ListView - Returns:
- the event type
setItems
public final void setItems(ObservableList<T> value)
- Parameters:
-
value- the list of items for this ListView
getItems
public final ObservableList<T> getItems()
ObservableList that contains the items currently being shown to the user. This may be null if setItems(javafx.collections.ObservableList) has previously been called, however, by default it is an empty ObservableList.- Returns:
- An ObservableList containing the items to be shown to the user, or null if the items have previously been set to null.
itemsProperty
public final ObjectProperty<ObservableList<T>> itemsProperty()
- Returns:
- the items property for this ListView
- See Also:
placeholderProperty
public final ObjectProperty<Node> placeholderProperty()
Node to show to the user when the ListView has no content to show. This happens when the list model has no data or when a filter has been applied to the list model, resulting in there being nothing to show the user.- Returns:
- the
placeholderproperty - Since:
- JavaFX 8.0
- See Also:
setPlaceholder
public final void setPlaceholder(Node value)
placeholder property.- Property description:
- The
Nodeto show to the user when theListViewhas no content to show. This happens when the list model has no data or when a filter has been applied to the list model, resulting in there being nothing to show the user. - Parameters:
-
value- the value for theplaceholderproperty - Since:
- JavaFX 8.0
- See Also:
getPlaceholder
public final Node getPlaceholder()
placeholder property.- Property description:
- The
Nodeto show to the user when theListViewhas no content to show. This happens when the list model has no data or when a filter has been applied to the list model, resulting in there being nothing to show the user. - Returns:
- the value of the
placeholderproperty - Since:
- JavaFX 8.0
- See Also:
setSelectionModel
public final void setSelectionModel(MultipleSelectionModel<T> value)
MultipleSelectionModel to be used in the ListView. Despite a ListView requiring a MultipleSelectionModel, it is possible to configure it to only allow single selection (see MultipleSelectionModel.setSelectionMode(javafx.scene.control.SelectionMode) for more information).- Parameters:
-
value- the MultipleSelectionModel to be used in this ListView
getSelectionModel
public final MultipleSelectionModel<T> getSelectionModel()
- Returns:
- the currently installed selection model
selectionModelProperty
public final ObjectProperty<MultipleSelectionModel<T>> selectionModelProperty()
- Returns:
- the selectionModel property
- See Also:
setFocusModel
public final void setFocusModel(FocusModel<T> value)
FocusModel to be used in the ListView.- Parameters:
-
value- the FocusModel to be used in the ListView
getFocusModel
public final FocusModel<T> getFocusModel()
FocusModel.- Returns:
- the currently installed FocusModel
focusModelProperty
public final ObjectProperty<FocusModel<T>> focusModelProperty()
- Returns:
- the FocusModel property
- See Also:
setOrientation
public final void setOrientation(Orientation value)
- Parameters:
-
value- the orientation of the ListView
getOrientation
public final Orientation getOrientation()
- Returns:
- the current orientation of the ListView
orientationProperty
public final ObjectProperty<Orientation> orientationProperty()
ListView - this can either be horizontal or vertical.- Returns:
- the orientation property of this ListView
- See Also:
setCellFactory
public final void setCellFactory(Callback<ListView<T>,ListCell<T>> value)
ListCell's to be thrown away, and new ListCell's created with the new cell factory.- Parameters:
-
value- cell factory to use in this ListView
getCellFactory
public final Callback<ListView<T>,ListCell<T>> getCellFactory()
- Returns:
- the current cell factory
cellFactoryProperty
public final ObjectProperty<Callback<ListView<T>,ListCell<T>>> cellFactoryProperty()
Setting a custom cell factory has the effect of deferring all cell creation, allowing for total customization of the cell. Internally, the ListView is responsible for reusing ListCells - all that is necessary is for the custom cell factory to return from this function a ListCell which might be usable for representing any item in the ListView.
Refer to the Cell class documentation for more detail.
- Returns:
- the cell factory property
- See Also:
setFixedCellSize
public final void setFixedCellSize(double value)
- Parameters:
-
value- The new fixed cell size value, or a value less than or equal to zero (or Region.USE_COMPUTED_SIZE) to disable. - Since:
- JavaFX 8.0
getFixedCellSize
public final double getFixedCellSize()
- Returns:
- A double representing the fixed cell size of this control, or a value less than or equal to zero if fixed cell size mode is disabled.
- Since:
- JavaFX 8.0
fixedCellSizeProperty
public final DoubleProperty fixedCellSizeProperty()
To set this property via CSS, use the -fx-fixed-cell-size property. This should not be confused with the -fx-cell-size property. The difference between these two CSS properties is that -fx-cell-size will size all cells to the specified size, but it will not enforce that this is the only size (thus allowing for variable cell sizes, and preventing the performance gains from being possible). Therefore, when performance matters use -fx-fixed-cell-size, instead of -fx-cell-size. If both properties are specified in CSS, -fx-fixed-cell-size takes precedence.
- Returns:
- the fixed cell size property
- Since:
- JavaFX 8.0
- See Also:
setEditable
public final void setEditable(boolean value)
editable property.- Property description:
- Specifies whether this ListView is editable - only if the ListView and the ListCells within it are both editable will a ListCell be able to go into their editing state.
- Parameters:
-
value- the value for theeditableproperty - See Also:
isEditable
public final boolean isEditable()
editable property.- Property description:
- Specifies whether this ListView is editable - only if the ListView and the ListCells within it are both editable will a ListCell be able to go into their editing state.
- Returns:
- the value of the
editableproperty - See Also:
editableProperty
public final BooleanProperty editableProperty()
- Returns:
- the editable property
- See Also:
getEditingIndex
public final int getEditingIndex()
- Returns:
- the index of the item currently being edited
editingIndexProperty
public final ReadOnlyIntegerProperty editingIndexProperty()
A property used to represent the index of the item currently being edited in the ListView, if editing is taking place, or -1 if no item is being edited.
It is not possible to set the editing index, instead it is required that you call edit(int).
- Returns:
- the editing index property
- See Also:
setOnEditStart
public final void setOnEditStart(EventHandler<ListView.EditEvent<T>> value)
EventHandler that will be called when the user begins an edit. This is a convenience method - the same result can be achieved by calling addEventHandler(ListView.EDIT_START_EVENT, eventHandler).
- Parameters:
-
value- the EventHandler that will be called when the user begins an edit
getOnEditStart
public final EventHandler<ListView.EditEvent<T>> getOnEditStart()
EventHandler that will be called when the user begins an edit.- Returns:
- the EventHandler that will be called when the user begins an edit
onEditStartProperty
public final ObjectProperty<EventHandler<ListView.EditEvent<T>>> onEditStartProperty()
- Returns:
- the onEditStart event handler property
- See Also:
setOnEditCommit
public final void setOnEditCommit(EventHandler<ListView.EditEvent<T>> value)
EventHandler that will be called when the user has completed their editing. This is called as part of the Cell.commitEdit(java.lang.Object) method. This is a convenience method - the same result can be achieved by calling addEventHandler(ListView.EDIT_START_EVENT, eventHandler).
- Parameters:
-
value- the EventHandler that will be called when the user has completed their editing
getOnEditCommit
public final EventHandler<ListView.EditEvent<T>> getOnEditCommit()
EventHandler that will be called when the user commits an edit.- Returns:
- the EventHandler that will be called when the user commits an edit
onEditCommitProperty
public final ObjectProperty<EventHandler<ListView.EditEvent<T>>> onEditCommitProperty()
This property is used when the user performs an action that should result in their editing input being persisted.
The EventHandler in this property should not be called directly - instead call Cell.commitEdit(java.lang.Object) from within your custom ListCell. This will handle firing this event, updating the view, and switching out of the editing state.
- Returns:
- the onEditCommit event handler property
- See Also:
setOnEditCancel
public final void setOnEditCancel(EventHandler<ListView.EditEvent<T>> value)
EventHandler that will be called when the user cancels an edit.- Parameters:
-
value- the EventHandler that will be called when the user cancels an edit
getOnEditCancel
public final EventHandler<ListView.EditEvent<T>> getOnEditCancel()
EventHandler that will be called when the user cancels an edit.- Returns:
- the EventHandler that will be called when the user cancels an edit
onEditCancelProperty
public final ObjectProperty<EventHandler<ListView.EditEvent<T>>> onEditCancelProperty()
- Returns:
- the onEditCancel event handler property
- See Also:
edit
public void edit(int itemIndex)
editable. Once this method is called, if the current cellFactoryProperty() is set up to support editing, the Cell will switch its visual state to enable for user input to take place.- Parameters:
-
itemIndex- The index of the item in the ListView that should be edited.
scrollTo
public void scrollTo(int index)
- Parameters:
-
index- The index that should be made visible to the user, assuming of course that it is greater than, or equal to 0, and less than the size of the items list contained within the given ListView.
scrollTo
public void scrollTo(T object)
- Parameters:
-
object- The object that should be visible to the user. - Since:
- JavaFX 8.0
setOnScrollTo
public final void setOnScrollTo(EventHandler<ScrollToEvent<Integer>> value)
onScrollTo property.- Property description:
- Called when there's a request to scroll an index into view using
scrollTo(int)orscrollTo(Object) - Parameters:
-
value- the value for theonScrollToproperty - Since:
- JavaFX 8.0
- See Also:
getOnScrollTo
public final EventHandler<ScrollToEvent<Integer>> getOnScrollTo()
onScrollTo property.- Property description:
- Called when there's a request to scroll an index into view using
scrollTo(int)orscrollTo(Object) - Returns:
- the value of the
onScrollToproperty - Since:
- JavaFX 8.0
- See Also:
onScrollToProperty
public final ObjectProperty<EventHandler<ScrollToEvent<Integer>>> onScrollToProperty()
scrollTo(int) or scrollTo(Object)
- Returns:
- the
onScrollToproperty - Since:
- JavaFX 8.0
- See Also:
refresh
public void refresh()
refresh() forces the ListView control to recreate and repopulate the cells necessary to populate the visual bounds of the control. In other words, this forces the ListView to update what it is showing to the user. This is useful in cases where the underlying data source has changed in a way that is not observed by the ListView itself.- Since:
- JavaFX 8u60
getClassCssMetaData
public static List<CssMetaData<? extends Styleable,?>> getClassCssMetaData()
CssMetaData associated with this class, which may include the CssMetaData of its superclasses.- Returns:
- the
CssMetaData - Since:
- JavaFX 8.0
getControlCssMetaData
public List<CssMetaData<? extends Styleable,?>> getControlCssMetaData()
- Overrides:
-
getControlCssMetaDatain classControl - Returns:
- the unmodifiable list of the control's CSS-styleable properties
- Since:
- JavaFX 8.0
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Documentation extracted from JavaFX API Documentation.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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