javax.swing
類別 JCheckBoxMenuItem
java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
javax.swing.AbstractButton
javax.swing.JMenuItem
javax.swing.JCheckBoxMenuItem
- 所有已實作的介面:
- ImageObserver, ItemSelectable, MenuContainer, Serializable, Accessible, MenuElement, SwingConstants
public class JCheckBoxMenuItem
- extends JMenuItem
- implements SwingConstants, Accessible
可以被選定或取消選定的選單項。如果被選定,選單項的旁邊通常會出現一個複選標記。如果未被選定或被取消選定,選單項的旁邊就沒有複選標記。像常規選單項一樣,複選框選單項可以有與之關聯的文本或圖標,或者二者兼而有之。
isSelected
/setSelected
或 getState
/setState
都可以用來確定/指定選單項的選擇狀態。首選方法是 isSelected
和 setSelected
,它們可用於所有選單和按鈕。getState
和 setState
方法用於與其他元件集的相容性。
通過 Action
可配置按鈕,並進行某種程度的控制。將 Action
用於選單項具有許多直接配置選單項所不及的優點。有關更多詳細資訊,請參閱支持 Action
的 Swing 元件,可在 The Java Tutorial 中的 How
to Use Actions 一節找到更多資訊。
有關使用複選框選單項的更多資訊和範例,請參閱 The Java Tutorial 中的 How to Use Menus 一節。
警告: Swing 不是執行緒安全的。有關更多資訊,請參閱 Swing's Threading
Policy。
警告:此類別的序列化物件與以後的 Swing 版本不相容。當前序列化支持適用於短期存儲,或適用於在運行相同 Swing 版本的應用程序之間進行 RMI(Remote Method Invocation,遠端方法調用)。從 1.4 版本開始,已在 java.beans
套件中添加了支持所有 JavaBeansTM 長期存儲的功能。請參見 XMLEncoder
。
從類別 javax.swing.AbstractButton 繼承的欄位 |
actionListener, BORDER_PAINTED_CHANGED_PROPERTY, changeEvent, changeListener, CONTENT_AREA_FILLED_CHANGED_PROPERTY, DISABLED_ICON_CHANGED_PROPERTY, DISABLED_SELECTED_ICON_CHANGED_PROPERTY, FOCUS_PAINTED_CHANGED_PROPERTY, HORIZONTAL_ALIGNMENT_CHANGED_PROPERTY, HORIZONTAL_TEXT_POSITION_CHANGED_PROPERTY, ICON_CHANGED_PROPERTY, itemListener, MARGIN_CHANGED_PROPERTY, MNEMONIC_CHANGED_PROPERTY, model, MODEL_CHANGED_PROPERTY, PRESSED_ICON_CHANGED_PROPERTY, ROLLOVER_ENABLED_CHANGED_PROPERTY, ROLLOVER_ICON_CHANGED_PROPERTY, ROLLOVER_SELECTED_ICON_CHANGED_PROPERTY, SELECTED_ICON_CHANGED_PROPERTY, TEXT_CHANGED_PROPERTY, VERTICAL_ALIGNMENT_CHANGED_PROPERTY, VERTICAL_TEXT_POSITION_CHANGED_PROPERTY |
從介面 javax.swing.SwingConstants 繼承的欄位 |
BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST |
從類別 javax.swing.JMenuItem 繼承的方法 |
actionPropertyChanged, addMenuDragMouseListener, addMenuKeyListener, configurePropertiesFromAction, fireMenuDragMouseDragged, fireMenuDragMouseEntered, fireMenuDragMouseExited, fireMenuDragMouseReleased, fireMenuKeyPressed, fireMenuKeyReleased, fireMenuKeyTyped, getAccelerator, getComponent, getMenuDragMouseListeners, getMenuKeyListeners, getSubElements, init, isArmed, menuSelectionChanged, processKeyEvent, processMenuDragMouseEvent, processMenuKeyEvent, processMouseEvent, removeMenuDragMouseListener, removeMenuKeyListener, setAccelerator, setArmed, setEnabled, setModel, setUI, updateUI |
從類別 javax.swing.AbstractButton 繼承的方法 |
addActionListener, addChangeListener, addImpl, addItemListener, checkHorizontalKey, checkVerticalKey, createActionListener, createActionPropertyChangeListener, createChangeListener, createItemListener, doClick, doClick, fireActionPerformed, fireItemStateChanged, fireStateChanged, getAction, getActionCommand, getActionListeners, getChangeListeners, getDisabledIcon, getDisabledSelectedIcon, getDisplayedMnemonicIndex, getHideActionText, getHorizontalAlignment, getHorizontalTextPosition, getIcon, getIconTextGap, getItemListeners, getLabel, getMargin, getMnemonic, getModel, getMultiClickThreshhold, getPressedIcon, getRolloverIcon, getRolloverSelectedIcon, getSelectedIcon, getText, getUI, getVerticalAlignment, getVerticalTextPosition, imageUpdate, isBorderPainted, isContentAreaFilled, isFocusPainted, isRolloverEnabled, isSelected, paintBorder, removeActionListener, removeChangeListener, removeItemListener, removeNotify, setAction, setActionCommand, setBorderPainted, setContentAreaFilled, setDisabledIcon, setDisabledSelectedIcon, setDisplayedMnemonicIndex, setFocusPainted, setHideActionText, setHorizontalAlignment, setHorizontalTextPosition, setIcon, setIconTextGap, setLabel, setLayout, setMargin, setMnemonic, setMnemonic, setMultiClickThreshhold, setPressedIcon, setRolloverEnabled, setRolloverIcon, setRolloverSelectedIcon, setSelected, setSelectedIcon, setText, setUI, setVerticalAlignment, setVerticalTextPosition |
從類別 javax.swing.JComponent 繼承的方法 |
addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update |
從類別 java.awt.Container 繼承的方法 |
add, add, add, add, add, addContainerListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, transferFocusBackward, transferFocusDownCycle, validate, validateTree |
從類別 java.awt.Component 繼承的方法 |
action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle |
JCheckBoxMenuItem
public JCheckBoxMenuItem()
- 創建一個沒有設置文本或圖標的、最初未選定的複選框選單項。
JCheckBoxMenuItem
public JCheckBoxMenuItem(Icon icon)
- 創建有一個帶圖標的、最初未被選定的複選框選單項。
- 參數:
icon
- CheckBoxMenuItem 的圖標。
JCheckBoxMenuItem
public JCheckBoxMenuItem(String text)
- 創建一個帶文本的、最初未被選定的複選框選單項。
- 參數:
text
- CheckBoxMenuItem 的文本
JCheckBoxMenuItem
public JCheckBoxMenuItem(Action a)
- 創建一個從所提供的 Action 中獲取其屬性的選單項。
- 從以下版本開始:
- 1.3
JCheckBoxMenuItem
public JCheckBoxMenuItem(String text,
Icon icon)
- 創建帶有指定文本和圖標的、最初未被選定的複選框選單項。
- 參數:
text
- CheckBoxMenuItem 的文本icon
- CheckBoxMenuItem 的圖標
JCheckBoxMenuItem
public JCheckBoxMenuItem(String text,
boolean b)
- 創建帶有指定文本和選擇狀態的複選框選單項。
- 參數:
text
- 複選框選單項的文本b
- 複選框選單項的選定狀態
JCheckBoxMenuItem
public JCheckBoxMenuItem(String text,
Icon icon,
boolean b)
- 創建帶有指定文本、圖標和選擇狀態的複選框選單項。
- 參數:
text
- 複選框選單項的文本icon
- 複選框選單項的圖標b
- 複選框選單項的選定狀態
getUIClassID
public String getUIClassID()
- 返回呈現此元件的 L&F 類別的名稱。
- 覆寫:
- 類別
JMenuItem
中的 getUIClassID
- 返回:
- "CheckBoxMenuItemUI"
- 另請參見:
JComponent.getUIClassID()
,
UIDefaults.getUI(javax.swing.JComponent)
getState
public boolean getState()
- 返回選單項的選定狀態。此方法僅用於 AWT 相容性。新程式碼應該使用 isSelected() 。
- 返回:
- 如果該項被選定,則返回 true
setState
public void setState(boolean b)
- 設置該項的選定狀態。此方法僅用於 AWT 相容性。新程式碼應該使用 setSelected() 。
- 參數:
b
- 指示該項選定狀態的 boolean 值,其中 true = 選定
getSelectedObjects
public Object[] getSelectedObjects()
- 返回包含複選框選單項標籤的陣列 (length 1),如果沒有選定複選框,則返回 null。
- 指定者:
- 介面
ItemSelectable
中的 getSelectedObjects
- 覆寫:
- 類別
AbstractButton
中的 getSelectedObjects
- 返回:
- 如果該項被選定,則返回包含一個 Object(選單項的文本)的陣列,否則返回 null
paramString
protected String paramString()
- 返回此 JCheckBoxMenuItem 的字元串表示形式。此方法僅在進行除錯時使用,對於各個實作,所返回字元串的內容和格式可能有所不同。返回的字元串可能為空,但不可能為
null
。
- 覆寫:
- 類別
JMenuItem
中的 paramString
- 返回:
- 此 JCheckBoxMenuItem 的字元串表示形式。
getAccessibleContext
public AccessibleContext getAccessibleContext()
- 獲得與此 JCheckBoxMenuItem 關聯的 AccessibleContext。對於 JCheckBoxMenuItems,AccessibleContext 採用 AccessibleJCheckBoxMenuItem 的形式。如有必要,可創建一個新的 AccessibleJCheckBoxMenuItem 實例。
- 指定者:
- 介面
Accessible
中的 getAccessibleContext
- 覆寫:
- 類別
JMenuItem
中的 getAccessibleContext
- 返回:
- 一個 AccessibleJCheckBoxMenuItem,它充當此 AccessibleJCheckBoxMenuItem 的 AccessibleContext
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