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JavaTM 2 Platform Standard Ed. 6 |
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上一个类 下一个类 | 框架 无框架 | |||||||||
摘要: 嵌套 | 字段 | 构造方法 | 方法 | 详细信息: 字段 | 构造方法 | 方法 |
java.lang.Object java.awt.Component java.awt.Container javax.swing.JComponent javax.swing.AbstractButton javax.swing.JButton
public class JButton
"push" 按钮的实现。
通过 Action
可配置按钮,并进行一定程度的控制。将 Action
用于按钮具有许多直接配置按钮所不及的优点。有关更多详细信息,请参阅支持的 Action
Swing 组件,可在 The Java Tutorial 中的 How
to Use Actions 一节找到更到信息。
有关使用按钮的更多信息和示例,请参阅 The Java Tutorial 中的 How to Use Buttons, Check Boxes, and Radio Buttons。
警告: Swing 不是线程安全的。有关更多信息,请参阅 Swing's Threading Policy。
警告:此类的序列化对象与以后的 Swing 版本不兼容。当前序列化支持适用于短期存储,或适用于在运行相同 Swing 版本的应用程序之间进行 RMI(Remote Method Invocation,远程方法调用)。从 1.4 版本开始,已在 java.beans
包中添加了支持所有 JavaBeansTM 长期存储的功能。请参见 XMLEncoder
。
嵌套类摘要 | |
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protected class |
JButton.AccessibleJButton
此类实现对 JButton 类的可访问性支持。 |
从类 javax.swing.AbstractButton 继承的嵌套类/接口 |
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AbstractButton.AccessibleAbstractButton, AbstractButton.ButtonChangeListener |
从类 javax.swing.JComponent 继承的嵌套类/接口 |
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JComponent.AccessibleJComponent |
从类 java.awt.Container 继承的嵌套类/接口 |
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Container.AccessibleAWTContainer |
从类 java.awt.Component 继承的嵌套类/接口 |
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Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy |
字段摘要 |
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从类 javax.swing.AbstractButton 继承的字段 |
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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 |
从类 javax.swing.JComponent 继承的字段 |
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accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW |
从类 java.awt.Component 继承的字段 |
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BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT |
从接口 javax.swing.SwingConstants 继承的字段 |
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BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST |
从接口 java.awt.image.ImageObserver 继承的字段 |
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ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH |
构造方法摘要 | |
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JButton()
创建不带有设置文本或图标的按钮。 |
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JButton(Action a)
创建一个按钮,其属性从所提供的 Action 中获取。 |
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JButton(Icon icon)
创建一个带图标的按钮。 |
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JButton(String text)
创建一个带文本的按钮。 |
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JButton(String text,
Icon icon)
创建一个带初始文本和图标的按钮。 |
方法摘要 | |
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AccessibleContext |
getAccessibleContext()
获取与此 JButton 关联的 AccessibleContext 。 |
String |
getUIClassID()
返回指定呈现此组件的 L&F 类名的字符串。 |
boolean |
isDefaultButton()
获取 defaultButton 属性的值,如果为 true 则意味着此按钮是其 JRootPane 的当前默认按钮。 |
boolean |
isDefaultCapable()
获取 defaultCapable 属性的值。 |
protected String |
paramString()
返回此 JButton 的字符串表示形式。 |
void |
removeNotify()
重写 JComponent.removeNotify 来检查此按钮当前是否被设置为 RootPane 上的默认按钮,如果是,则将 RootPane 的默认按钮设置为 null ,以确保 RootPane 不继续停留在无效的按钮引用上。 |
void |
setDefaultCapable(boolean defaultCapable)
设置 defaultCapable 属性,该属性确定此按钮是否可以是其根窗格的默认按钮。 |
void |
updateUI()
根据当前外观的值重置 UI 属性。 |
从类 javax.swing.AbstractButton 继承的方法 |
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actionPropertyChanged, addActionListener, addChangeListener, addImpl, addItemListener, checkHorizontalKey, checkVerticalKey, configurePropertiesFromAction, 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, getSelectedObjects, getText, getUI, getVerticalAlignment, getVerticalTextPosition, imageUpdate, init, isBorderPainted, isContentAreaFilled, isFocusPainted, isRolloverEnabled, isSelected, paintBorder, removeActionListener, removeChangeListener, removeItemListener, setAction, setActionCommand, setBorderPainted, setContentAreaFilled, setDisabledIcon, setDisabledSelectedIcon, setDisplayedMnemonicIndex, setEnabled, setFocusPainted, setHideActionText, setHorizontalAlignment, setHorizontalTextPosition, setIcon, setIconTextGap, setLabel, setLayout, setMargin, setMnemonic, setMnemonic, setModel, setMultiClickThreshhold, setPressedIcon, setRolloverEnabled, setRolloverIcon, setRolloverSelectedIcon, setSelected, setSelectedIcon, setText, setUI, setVerticalAlignment, setVerticalTextPosition |
从类 javax.swing.JComponent 继承的方法 |
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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 |
从类 java.awt.Container 继承的方法 |
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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 |
从类 java.awt.Component 继承的方法 |
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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 |
从类 java.lang.Object 继承的方法 |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
构造方法详细信息 |
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public JButton()
public JButton(Icon icon)
icon
- 显示在按钮上的 Icon 图像public JButton(String text)
text
- 按钮的文本public JButton(Action a)
Action
中获取。
a
- 用于指定新按钮的 Action
public JButton(String text, Icon icon)
text
- 按钮的文本icon
- 显示在按钮上的 Icon 图像方法详细信息 |
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public void updateUI()
AbstractButton
中的 updateUI
JComponent.updateUI()
public String getUIClassID()
JComponent
中的 getUIClassID
JComponent.getUIClassID()
,
UIDefaults.getUI(javax.swing.JComponent)
public boolean isDefaultButton()
defaultButton
属性的值,如果为 true
则意味着此按钮是其 JRootPane
的当前默认按钮。大多数外观呈现不同的默认按钮,并且可能提供对访问默认按钮的绑定。
defaultButton
属性的值JRootPane.setDefaultButton(javax.swing.JButton)
,
isDefaultCapable()
public boolean isDefaultCapable()
defaultCapable
属性的值。
defaultCapable
属性的值setDefaultCapable(boolean)
,
isDefaultButton()
,
JRootPane.setDefaultButton(javax.swing.JButton)
public void setDefaultCapable(boolean defaultCapable)
defaultCapable
属性,该属性确定此按钮是否可以是其根窗格的默认按钮。除非由外观另行指定,否则 defaultCapable
属性的默认值为 true
。
defaultCapable
- 如果此按钮可以是 RootPane
上的默认按钮,则该参数为 true
;否则为 false
isDefaultCapable()
public void removeNotify()
JComponent.removeNotify
来检查此按钮当前是否被设置为 RootPane
上的默认按钮,如果是,则将 RootPane
的默认按钮设置为 null
,以确保 RootPane
不继续停留在无效的按钮引用上。
AbstractButton
中的 removeNotify
JComponent.registerKeyboardAction(java.awt.event.ActionListener, java.lang.String, javax.swing.KeyStroke, int)
protected String paramString()
JButton
的字符串表示形式。此方法仅在进行调试时使用,对于各个实现,所返回字符串的内容和格式可能有所不同。返回的字符串可以为空,但不可以为 null
。
AbstractButton
中的 paramString
JButton
的字符串表示形式public AccessibleContext getAccessibleContext()
JButton
关联的 AccessibleContext
。对于 JButton
,AccessibleContext
采用 AccessibleJMenuItem
的形式。如有必要,可创建一个新的 AccessibleJButton
实例。
Accessible
中的 getAccessibleContext
JComponent
中的 getAccessibleContext
AccessibleJButton
,它充当此 JButton
的 AccessibleContext
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JavaTM 2 Platform Standard Ed. 6 |
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上一个类 下一个类 | 框架 无框架 | |||||||||
摘要: 嵌套 | 字段 | 构造方法 | 方法 | 详细信息: 字段 | 构造方法 | 方法 |
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