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JavaTM 2 Platform Standard Edition 5.0 API 规范中文版
JPanel (Java 2 Platform SE 5.0) - JavaTM 2 Platform Standard Edition 5.0 API 规范中文版
javax.swing
类 JPanel
java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
javax.swing.JPanel
- 所有已实现的接口：
- ImageObserver, MenuContainer, Serializable, Accessible
- 直接已知子类：
- AbstractColorChooserPanel, JSpinner.DefaultEditor
public class JPanel
- extends JComponent
- implements Accessible
JPanel 是一般轻量级容器。有关 JPanel 的示例和面向任务的文档，请参阅《The Java Tutorial》的 How to Use Panels 一节。
警告：此类的序列化对象将与以后的 Swing 版本不兼容。当前的序列化支持适用于短期存储或运行相同 Swing 版本的应用程序之间的 RMI。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。
| 从类 javax.swing.JComponent 继承的方法 |
addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, 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, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, 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 |
add, add, add, add, add, addContainerListener, addImpl, 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, setLayout, transferFocusBackward, transferFocusDownCycle, validate, validateTree |
| 从类 java.awt.Component 继承的方法 |
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, imageUpdate, 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 |
JPanel
public JPanel(LayoutManager layout,
boolean isDoubleBuffered)
- 创建具有指定布局管理器和缓冲策略的新 JPanel。
- 参数：
layout - 要使用的 LayoutManagerisDoubleBuffered - 一个 boolean 值，为 true 表示双缓冲，使用更多内存空间实现快速、无闪烁的更新
JPanel
public JPanel(LayoutManager layout)
- 创建具有指定布局管理器的新缓冲 JPanel。
- 参数：
layout - 要使用的 LayoutManager
JPanel
public JPanel(boolean isDoubleBuffered)
- 创建具有
FlowLayout 和指定缓冲策略的新 JPanel。如果 isDoubleBuffered 为 true，则 JPanel 将使用双缓冲。
- 参数：
isDoubleBuffered - 一个 boolean 值，为 true 表示双缓冲，使用更多内存空间实现快速、无闪烁的更新
JPanel
public JPanel()
- 创建具有双缓冲和流布局的新
JPanel。
updateUI
public void updateUI()
- 利用当前外观的值重置 UI 属性。
- 覆盖：
- 类
JComponent 中的 updateUI
- 另请参见：
JComponent.updateUI()
getUI
public PanelUI getUI()
- 返回呈现此组件的外观 (L&F) 对象。
- 返回：
- 呈现此组件的 PanelUI 对象
- 从以下版本开始：
- 1.4
setUI
public void setUI(PanelUI ui)
- 设置呈现此组件的外观 (L&F) 对象。
- 参数：
ui - PanelUI L&F 对象- 从以下版本开始：
- 1.4
- 另请参见：
UIDefaults.getUI(javax.swing.JComponent)
getUIClassID
public String getUIClassID()
- 返回指定呈现此组件的 L&F 类名的字符串。
- 覆盖：
- 类
JComponent 中的 getUIClassID
- 返回：
- "PanelUI"
- 另请参见：
JComponent.getUIClassID(),
UIDefaults.getUI(javax.swing.JComponent)
paramString
protected String paramString()
- 返回此 JPanel 的字符串表示形式。此方法仅在进行调试的时候使用，对于各个实现，所返回字符串的内容和格式可能有所不同。返回的字符串可能为空，但不可能为
null。
- 覆盖：
- 类
JComponent 中的 paramString
- 返回：
- 此 JPanel 的字符串表示形式。
getAccessibleContext
public AccessibleContext getAccessibleContext()
- 获取与此 JPanel 关联的 AccessibleContext。对于 JPanel，AccessibleContext 采取 AccessibleJPanel 的形式。必要时要创建新的 AccessibleJPanel 实例。
- 指定者：
- 接口
Accessible 中的 getAccessibleContext - 覆盖：
- 类
JComponent 中的 getAccessibleContext
- 返回：
- 一个 AccessibleJPanel，它充当此 JPanel 的 AccessibleContext
提交错误或意见
有关更多的 API 参考资料和开发人员文档，请参阅 Java 2 SDK SE 开发人员文档。该文档包含更详细的、面向开发人员的描述，以及总体概述、术语定义、使用技巧和工作代码示例。 版权所有 2004 Sun Microsystems, Inc. 保留所有权利。 请遵守许可证条款。另请参阅文档重新分发政策。
