Java java.awt Class List.AccessibleAWTList.AccessibleAWTListChild（JDK8）

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Java™ Platform
Standard Ed. 8

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Summary:
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Method

Detail:
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Constr |
Method

java.lang.Object
- javax.accessibility.AccessibleContext
- - java.awt.Component.AccessibleAWTComponent
  - - java.awt.List.AccessibleAWTList.AccessibleAWTListChild

All Implemented Interfaces:

Serializable, Accessible, AccessibleComponent

Enclosing class:

List.AccessibleAWTList
```
protected class List.AccessibleAWTList.AccessibleAWTListChild
extends Component.AccessibleAWTComponent
implements Accessible
```
This class implements accessibility support for List children. It provides an implementation of the Java Accessibility API appropriate to list children user-interface elements.

Since:

1.3

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class java.awt.Component.AccessibleAWTComponent
  Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler

Field Summary
- Fields inherited from class java.awt.Component.AccessibleAWTComponent
  accessibleAWTComponentHandler, accessibleAWTFocusHandler
- Fields inherited from class javax.accessibility.AccessibleContext
  ACCESSIBLE_ACTION_PROPERTY, ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY, ACCESSIBLE_CARET_PROPERTY, ACCESSIBLE_CHILD_PROPERTY, ACCESSIBLE_COMPONENT_BOUNDS_CHANGED, ACCESSIBLE_DESCRIPTION_PROPERTY, ACCESSIBLE_HYPERTEXT_OFFSET, ACCESSIBLE_INVALIDATE_CHILDREN, ACCESSIBLE_NAME_PROPERTY, ACCESSIBLE_SELECTION_PROPERTY, ACCESSIBLE_STATE_PROPERTY, ACCESSIBLE_TABLE_CAPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGED, ACCESSIBLE_TABLE_MODEL_CHANGED, ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_ROW_HEADER_CHANGED, ACCESSIBLE_TABLE_SUMMARY_CHANGED, ACCESSIBLE_TEXT_ATTRIBUTES_CHANGED, ACCESSIBLE_TEXT_PROPERTY, ACCESSIBLE_VALUE_PROPERTY, ACCESSIBLE_VISIBLE_DATA_PROPERTY, accessibleDescription, accessibleName, accessibleParent

Constructor Summary

Constructors
Constructor and Description
`AccessibleAWTListChild(List parent, int indexInParent)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addFocusListener(FocusListener l)` Adds the specified focus listener to receive focus events from this component.
`boolean`	`contains(Point p)` Checks whether the specified point is within this object's bounds, where the point's x and y coordinates are defined to be relative to the coordinate system of the object.
`Accessible`	`getAccessibleAt(Point p)` Returns the `Accessible` child, if one exists, contained at the local coordinate `Point`.
`Accessible`	`getAccessibleChild(int i)` Return the specified Accessible child of the object.
`int`	`getAccessibleChildrenCount()` Returns the number of accessible children of the object.
`AccessibleContext`	`getAccessibleContext()` Gets the AccessibleContext for this object.
`int`	`getAccessibleIndexInParent()` Get the 0-based index of this object in its accessible parent.
`AccessibleRole`	`getAccessibleRole()` Get the role of this object.
`AccessibleStateSet`	`getAccessibleStateSet()` Get the state set of this object.
`Color`	`getBackground()` Get the background color of this object.
`Rectangle`	`getBounds()` Gets the bounds of this object in the form of a Rectangle object.
`Cursor`	`getCursor()` Get the Cursor of this object.
`Font`	`getFont()` Get the Font of this object.
`FontMetrics`	`getFontMetrics(Font f)` Get the FontMetrics of this object.
`Color`	`getForeground()` Get the foreground color of this object.
`Locale`	`getLocale()` Gets the locale of the component.
`Point`	`getLocation()` Gets the location of the object relative to the parent in the form of a point specifying the object's top-left corner in the screen's coordinate space.
`Point`	`getLocationOnScreen()` Returns the location of the object on the screen.
`Dimension`	`getSize()` Returns the size of this object in the form of a Dimension object.
`boolean`	`isEnabled()` Determine if the object is enabled.
`boolean`	`isFocusTraversable()` Returns whether this object can accept focus or not.
`boolean`	`isShowing()` Determine if the object is showing.
`boolean`	`isVisible()` Determine if the object is visible.
`void`	`removeFocusListener(FocusListener l)` Removes the specified focus listener so it no longer receives focus events from this component.
`void`	`requestFocus()` Requests focus for this object.
`void`	`setBackground(Color c)` Set the background color of this object.
`void`	`setBounds(Rectangle r)` Sets the bounds of this object in the form of a Rectangle object.
`void`	`setCursor(Cursor cursor)` Set the Cursor of this object.
`void`	`setEnabled(boolean b)` Set the enabled state of the object.
`void`	`setFont(Font f)` Set the Font of this object.
`void`	`setForeground(Color c)` Set the foreground color of this object.
`void`	`setLocation(Point p)` Sets the location of the object relative to the parent.
`void`	`setSize(Dimension d)` Resizes this object so that it has width and height.
`void`	`setVisible(boolean b)` Set the visible state of the object.

Methods inherited from class java.awt.Component.AccessibleAWTComponent
addPropertyChangeListener, getAccessibleComponent, getAccessibleDescription, getAccessibleName, getAccessibleParent, removePropertyChangeListener

Methods inherited from class javax.accessibility.AccessibleContext
firePropertyChange, getAccessibleAction, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleSelection, getAccessibleTable, getAccessibleText, getAccessibleValue, setAccessibleDescription, setAccessibleName, setAccessibleParent

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AccessibleAWTListChild
```
public AccessibleAWTListChild(List parent,
                              int indexInParent)
```
- Method Detail
  - getAccessibleContext
```
public AccessibleContext getAccessibleContext()
```
    Gets the AccessibleContext for this object. In the implementation of the Java Accessibility API for this class, return this object, which acts as its own AccessibleContext.
    
    Specified by:
    
    getAccessibleContext in interface Accessible
    
    Returns:
    
    this object
  - getAccessibleRole
```
public AccessibleRole getAccessibleRole()
```
    Get the role of this object.
    
    Overrides:
    
    getAccessibleRole in class Component.AccessibleAWTComponent
    
    Returns:
    
    an instance of AccessibleRole describing the role of the object
    
    See Also:
    
    AccessibleRole
  - getAccessibleStateSet
```
public AccessibleStateSet getAccessibleStateSet()
```
    Get the state set of this object. The AccessibleStateSet of an object is composed of a set of unique AccessibleState's. A change in the AccessibleStateSet of an object will cause a PropertyChangeEvent to be fired for the ACCESSIBLE_STATE_PROPERTY property.
    
    Overrides:
    
    getAccessibleStateSet in class Component.AccessibleAWTComponent
    
    Returns:
    
    an instance of AccessibleStateSet containing the current state set of the object
    
    See Also:
    
    AccessibleStateSet, AccessibleState, Component.AccessibleAWTComponent.addPropertyChangeListener(java.beans.PropertyChangeListener)
  - getLocale
```
public Locale getLocale()
```
    Gets the locale of the component. If the component does not have a locale, then the locale of its parent is returned.
    
    Overrides:
    
    getLocale in class Component.AccessibleAWTComponent
    
    Returns:
    
    This component's locale. If this component does not have a locale, the locale of its parent is returned.
    
    Throws:
    
    IllegalComponentStateException - If the Component does not have its own locale and has not yet been added to a containment hierarchy such that the locale can be determined from the containing parent.
  - getAccessibleIndexInParent
```
public int getAccessibleIndexInParent()
```
    Get the 0-based index of this object in its accessible parent.
    
    Overrides:
    
    getAccessibleIndexInParent in class Component.AccessibleAWTComponent
    
    Returns:
    
    the 0-based index of this object in its parent; -1 if this object does not have an accessible parent.
    
    See Also:
    
    Component.AccessibleAWTComponent.getAccessibleParent(), getAccessibleChildrenCount(), getAccessibleChild(int)
  - getAccessibleChildrenCount
```
public int getAccessibleChildrenCount()
```
    Returns the number of accessible children of the object.
    
    Overrides:
    
    getAccessibleChildrenCount in class Component.AccessibleAWTComponent
    
    Returns:
    
    the number of accessible children of the object.
  - getAccessibleChild
```
public Accessible getAccessibleChild(int i)
```
    Return the specified Accessible child of the object. The Accessible children of an Accessible object are zero-based, so the first child of an Accessible child is at index 0, the second child is at index 1, and so on.
    
    Overrides:
    
    getAccessibleChild in class Component.AccessibleAWTComponent
    
    Parameters:
    
    i - zero-based index of child
    
    Returns:
    
    the Accessible child of the object
    
    See Also:
    
    getAccessibleChildrenCount()
  - getBackground
```
public Color getBackground()
```
    Get the background color of this object.
    
    Specified by:
    
    getBackground in interface AccessibleComponent
    
    Overrides:
    
    getBackground in class Component.AccessibleAWTComponent
    
    Returns:
    
    the background color, if supported, of the object; otherwise, null
    
    See Also:
    
    setBackground(java.awt.Color)
  - setBackground
```
public void setBackground(Color c)
```
    Set the background color of this object.
    
    Specified by:
    
    setBackground in interface AccessibleComponent
    
    Overrides:
    
    setBackground in class Component.AccessibleAWTComponent
    
    Parameters:
    
    c - the new Color for the background
    
    See Also:
    
    setBackground(java.awt.Color)
  - getForeground
```
public Color getForeground()
```
    Get the foreground color of this object.
    
    Specified by:
    
    getForeground in interface AccessibleComponent
    
    Overrides:
    
    getForeground in class Component.AccessibleAWTComponent
    
    Returns:
    
    the foreground color, if supported, of the object; otherwise, null
    
    See Also:
    
    setForeground(java.awt.Color)
  - setForeground
```
public void setForeground(Color c)
```
    Set the foreground color of this object.
    
    Specified by:
    
    setForeground in interface AccessibleComponent
    
    Overrides:
    
    setForeground in class Component.AccessibleAWTComponent
    
    Parameters:
    
    c - the new Color for the foreground
    
    See Also:
    
    getForeground()
  - getCursor
```
public Cursor getCursor()
```
    Get the Cursor of this object.
    
    Specified by:
    
    getCursor in interface AccessibleComponent
    
    Overrides:
    
    getCursor in class Component.AccessibleAWTComponent
    
    Returns:
    
    the Cursor, if supported, of the object; otherwise, null
    
    See Also:
    
    setCursor(java.awt.Cursor)
  - setCursor
```
public void setCursor(Cursor cursor)
```
    Set the Cursor of this object.
    The method may have no visual effect if the Java platform implementation and/or the native system do not support changing the mouse cursor shape.
    
    Specified by:
    
    setCursor in interface AccessibleComponent
    
    Overrides:
    
    setCursor in class Component.AccessibleAWTComponent
    
    Parameters:
    
    cursor - the new Cursor for the object
    
    See Also:
    
    getCursor()
  - getFont
```
public Font getFont()
```
    Get the Font of this object.
    
    Specified by:
    
    getFont in interface AccessibleComponent
    
    Overrides:
    
    getFont in class Component.AccessibleAWTComponent
    
    Returns:
    
    the Font,if supported, for the object; otherwise, null
    
    See Also:
    
    setFont(java.awt.Font)
  - setFont
```
public void setFont(Font f)
```
    Set the Font of this object.
    
    Specified by:
    
    setFont in interface AccessibleComponent
    
    Overrides:
    
    setFont in class Component.AccessibleAWTComponent
    
    Parameters:
    
    f - the new Font for the object
    
    See Also:
    
    getFont()
  - getFontMetrics
```
public FontMetrics getFontMetrics(Font f)
```
    Get the FontMetrics of this object.
    
    Specified by:
    
    getFontMetrics in interface AccessibleComponent
    
    Overrides:
    
    getFontMetrics in class Component.AccessibleAWTComponent
    
    Parameters:
    
    f - the Font
    
    Returns:
    
    the FontMetrics, if supported, the object; otherwise, null
    
    See Also:
    
    getFont()
  - isEnabled
```
public boolean isEnabled()
```
    Determine if the object is enabled. Objects that are enabled will also have the AccessibleState.ENABLED state set in their AccessibleStateSet.
    
    Specified by:
    
    isEnabled in interface AccessibleComponent
    
    Overrides:
    
    isEnabled in class Component.AccessibleAWTComponent
    
    Returns:
    
    true if object is enabled; otherwise, false
    
    See Also:
    
    setEnabled(boolean), AccessibleContext.getAccessibleStateSet(), AccessibleState.ENABLED, AccessibleStateSet
  - setEnabled
```
public void setEnabled(boolean b)
```
    Set the enabled state of the object.
    
    Specified by:
    
    setEnabled in interface AccessibleComponent
    
    Overrides:
    
    setEnabled in class Component.AccessibleAWTComponent
    
    Parameters:
    
    b - if true, enables this object; otherwise, disables it
    
    See Also:
    
    isEnabled()
  - isVisible
```
public boolean isVisible()
```
    Determine if the object is visible. Note: this means that the object intends to be visible; however, it may not be showing on the screen because one of the objects that this object is contained by is currently not visible. To determine if an object is showing on the screen, use isShowing().
    Objects that are visible will also have the AccessibleState.VISIBLE state set in their AccessibleStateSet.
    
    Specified by:
    
    isVisible in interface AccessibleComponent
    
    Overrides:
    
    isVisible in class Component.AccessibleAWTComponent
    
    Returns:
    
    true if object is visible; otherwise, false
    
    See Also:
    
    setVisible(boolean), AccessibleContext.getAccessibleStateSet(), AccessibleState.VISIBLE, AccessibleStateSet
  - setVisible
```
public void setVisible(boolean b)
```
    Set the visible state of the object.
    
    Specified by:
    
    setVisible in interface AccessibleComponent
    
    Overrides:
    
    setVisible in class Component.AccessibleAWTComponent
    
    Parameters:
    
    b - if true, shows this object; otherwise, hides it
    
    See Also:
    
    isVisible()
  - isShowing
```
public boolean isShowing()
```
    Determine if the object is showing. This is determined by checking the visibility of the object and visibility of the object ancestors. Note: this will return true even if the object is obscured by another (for example, it to object is underneath a menu that was pulled down).
    
    Specified by:
    
    isShowing in interface AccessibleComponent
    
    Overrides:
    
    isShowing in class Component.AccessibleAWTComponent
    
    Returns:
    
    true if object is showing; otherwise, false
  - contains
```
public boolean contains(Point p)
```
    Checks whether the specified point is within this object's bounds, where the point's x and y coordinates are defined to be relative to the coordinate system of the object.
    
    Specified by:
    
    contains in interface AccessibleComponent
    
    Overrides:
    
    contains in class Component.AccessibleAWTComponent
    
    Parameters:
    
    p - the Point relative to the coordinate system of the object
    
    Returns:
    
    true if object contains Point; otherwise false
    
    See Also:
    
    getBounds()
  - getLocationOnScreen
```
public Point getLocationOnScreen()
```
    Returns the location of the object on the screen.
    
    Specified by:
    
    getLocationOnScreen in interface AccessibleComponent
    
    Overrides:
    
    getLocationOnScreen in class Component.AccessibleAWTComponent
    
    Returns:
    
    location of object on screen; null if this object is not on the screen
    
    See Also:
    
    getBounds(), getLocation()
  - getLocation
```
public Point getLocation()
```
    Gets the location of the object relative to the parent in the form of a point specifying the object's top-left corner in the screen's coordinate space.
    
    Specified by:
    
    getLocation in interface AccessibleComponent
    
    Overrides:
    
    getLocation in class Component.AccessibleAWTComponent
    
    Returns:
    
    An instance of Point representing the top-left corner of the objects's bounds in the coordinate space of the screen; null if this object or its parent are not on the screen
    
    See Also:
    
    getBounds(), getLocationOnScreen()
  - setLocation
```
public void setLocation(Point p)
```
    Sets the location of the object relative to the parent.
    
    Specified by:
    
    setLocation in interface AccessibleComponent
    
    Overrides:
    
    setLocation in class Component.AccessibleAWTComponent
    
    Parameters:
    
    p - the new position for the top-left corner
    
    See Also:
    
    getLocation()
  - getBounds
```
public Rectangle getBounds()
```
    Gets the bounds of this object in the form of a Rectangle object. The bounds specify this object's width, height, and location relative to its parent.
    
    Specified by:
    
    getBounds in interface AccessibleComponent
    
    Overrides:
    
    getBounds in class Component.AccessibleAWTComponent
    
    Returns:
    
    A rectangle indicating this component's bounds; null if this object is not on the screen.
    
    See Also:
    
    contains(java.awt.Point)
  - setBounds
```
public void setBounds(Rectangle r)
```
    Sets the bounds of this object in the form of a Rectangle object. The bounds specify this object's width, height, and location relative to its parent.
    
    Specified by:
    
    setBounds in interface AccessibleComponent
    
    Overrides:
    
    setBounds in class Component.AccessibleAWTComponent
    
    Parameters:
    
    r - rectangle indicating this component's bounds
    
    See Also:
    
    getBounds()
  - getSize
```
public Dimension getSize()
```
    Returns the size of this object in the form of a Dimension object. The height field of the Dimension object contains this objects's height, and the width field of the Dimension object contains this object's width.
    
    Specified by:
    
    getSize in interface AccessibleComponent
    
    Overrides:
    
    getSize in class Component.AccessibleAWTComponent
    
    Returns:
    
    A Dimension object that indicates the size of this component; null if this object is not on the screen
    
    See Also:
    
    setSize(java.awt.Dimension)
  - setSize
```
public void setSize(Dimension d)
```
    Resizes this object so that it has width and height.
    
    Specified by:
    
    setSize in interface AccessibleComponent
    
    Overrides:
    
    setSize in class Component.AccessibleAWTComponent
    
    Parameters:
    
    d - - The dimension specifying the new size of the object.
    
    See Also:
    
    getSize()
  - getAccessibleAt
```
public Accessible getAccessibleAt(Point p)
```
    Returns the Accessible child, if one exists, contained at the local coordinate Point.
    
    Specified by:
    
    getAccessibleAt in interface AccessibleComponent
    
    Overrides:
    
    getAccessibleAt in class Component.AccessibleAWTComponent
    
    Parameters:
    
    p - the point relative to the coordinate system of this object
    
    Returns:
    
    the Accessible, if it exists, at the specified location; otherwise null
  - isFocusTraversable
```
public boolean isFocusTraversable()
```
    Returns whether this object can accept focus or not. Objects that can accept focus will also have the AccessibleState.FOCUSABLE state set in their AccessibleStateSet.
    
    Specified by:
    
    isFocusTraversable in interface AccessibleComponent
    
    Overrides:
    
    isFocusTraversable in class Component.AccessibleAWTComponent
    
    Returns:
    
    true if object can accept focus; otherwise false
    
    See Also:
    
    AccessibleContext.getAccessibleStateSet(), AccessibleState.FOCUSABLE, AccessibleState.FOCUSED, AccessibleStateSet
  - requestFocus
```
public void requestFocus()
```
    Requests focus for this object. If this object cannot accept focus, nothing will happen. Otherwise, the object will attempt to take focus.
    
    Specified by:
    
    requestFocus in interface AccessibleComponent
    
    Overrides:
    
    requestFocus in class Component.AccessibleAWTComponent
    
    See Also:
    
    isFocusTraversable()
  - addFocusListener
```
public void addFocusListener(FocusListener l)
```
    Adds the specified focus listener to receive focus events from this component.
    
    Specified by:
    
    addFocusListener in interface AccessibleComponent
    
    Overrides:
    
    addFocusListener in class Component.AccessibleAWTComponent
    
    Parameters:
    
    l - the focus listener
    
    See Also:
    
    removeFocusListener(java.awt.event.FocusListener)
  - removeFocusListener
```
public void removeFocusListener(FocusListener l)
```
    Removes the specified focus listener so it no longer receives focus events from this component.
    
    Specified by:
    
    removeFocusListener in interface AccessibleComponent
    
    Overrides:
    
    removeFocusListener in class Component.AccessibleAWTComponent
    
    Parameters:
    
    l - the focus listener
    
    See Also:
    
    addFocusListener(java.awt.event.FocusListener)

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Detail:
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Java java.awt Class List.AccessibleAWTList.AccessibleAWTListChild（JDK8）

Class List.AccessibleAWTList.AccessibleAWTListChild

Nested Class Summary

Nested classes/interfaces inherited from class java.awt.Component.AccessibleAWTComponent

Field Summary

Fields inherited from class java.awt.Component.AccessibleAWTComponent

Fields inherited from class javax.accessibility.AccessibleContext

Constructor Summary

Method Summary

Methods inherited from class java.awt.Component.AccessibleAWTComponent

Methods inherited from class javax.accessibility.AccessibleContext

Methods inherited from class java.lang.Object

Constructor Detail

AccessibleAWTListChild

Method Detail

getAccessibleContext

getAccessibleRole

getAccessibleStateSet

getLocale

getAccessibleIndexInParent

getAccessibleChildrenCount

getAccessibleChild

getBackground

setBackground

getForeground

setForeground

getCursor

setCursor

getFont

setFont

getFontMetrics

isEnabled

setEnabled

isVisible

setVisible

isShowing

contains

getLocationOnScreen

getLocation

setLocation

getBounds

setBounds

getSize

setSize

getAccessibleAt

isFocusTraversable

requestFocus

addFocusListener

removeFocusListener