Java javax.accessibility 接口 Accessible（JDK5）

所有类

javax.accessibility
接口 Accessible

所有已知实现类：

AbstractColorChooserPanel, Applet, BasicArrowButton, BasicComboBoxRenderer, BasicComboBoxRenderer.UIResource, BasicComboPopup, BasicInternalFrameTitlePane.SystemMenuBar, BasicToolBarUI.DragWindow, Box, Box.Filler, Button, Canvas, CellRendererPane, Checkbox, CheckboxMenuItem, Choice, DefaultListCellRenderer, DefaultListCellRenderer.UIResource, DefaultTableCellRenderer, DefaultTableCellRenderer.UIResource, DefaultTreeCellEditor.DefaultTextField, DefaultTreeCellRenderer, Dialog, FileDialog, Frame, HTMLEditorKit, ImageIcon, JApplet, JButton, JCheckBox, JCheckBoxMenuItem, JColorChooser, JComboBox, JDesktopPane, JDialog, JEditorPane, JFileChooser, JFormattedTextField, JFrame, JInternalFrame, JInternalFrame.JDesktopIcon, JLabel, JLayeredPane, JList, JList.AccessibleJList.AccessibleJListChild, JMenu, JMenuBar, JMenuItem, JOptionPane, JPanel, JPasswordField, JPopupMenu, JPopupMenu.Separator, JProgressBar, JRadioButton, JRadioButtonMenuItem, JRootPane, JScrollBar, JScrollPane, JScrollPane.ScrollBar, JSeparator, JSlider, JSpinner, JSpinner.DateEditor, JSpinner.DefaultEditor, JSpinner.ListEditor, JSpinner.NumberEditor, JSplitPane, JTabbedPane, JTable, JTable.AccessibleJTable.AccessibleJTableCell, JTableHeader, JTableHeader.AccessibleJTableHeader.AccessibleJTableHeaderEntry, JTextArea, JTextComponent, JTextField, JTextPane, JToggleButton, JToolBar, JToolBar.Separator, JToolTip, JTree, JTree.AccessibleJTree.AccessibleJTreeNode, JViewport, JWindow, Label, List, List.AccessibleAWTList.AccessibleAWTListChild, Menu, MenuBar, MenuItem, MetalComboBoxButton, MetalComboBoxUI.MetalComboPopup, MetalFileChooserUI.FileRenderer, MetalFileChooserUI.FilterComboBoxRenderer, MetalScrollButton, Panel, PopupMenu, ProgressMonitor, Scrollbar, ScrollPane, TextArea, TextComponent, TextField, Window

public interface Accessible

Accessible 接口是可访问性包的主接口。所有支持可访问性包的组件都必须实现此接口。它包含单个方法 getAccessibleContext()，此方法返回 AccessibleContext 类的实例。

getAccessibleContext

AccessibleContext getAccessibleContext()

返回与此对象关联的 AccessibleContext。在大多数情况下，如果对象实现了 Accessible 接口，则返回值不应为 null。如果组件开发人员创建了实现 Accessible 的对象的子类，且该子类不是 Accessible，那么开发人员应该重写 getAccessibleContext 方法以返回 null。