Java javax.swing Class ImageIcon（JDK8）

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Java™ Platform
Standard Ed. 8

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Summary:
Nested |
Field |
Constr |
Method

Detail:
Field |
Constr |
Method

java.lang.Object
- javax.swing.ImageIcon

All Implemented Interfaces:

Serializable, Accessible, Icon
```
public class ImageIcon
extends Object
implements Icon, Serializable, Accessible
```
An implementation of the Icon interface that paints Icons from Images. Images that are created from a URL, filename or byte array are preloaded using MediaTracker to monitor the loaded state of the image.
For further information and examples of using image icons, see How to Use Icons in The Java Tutorial.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans™ has been added to the java.beans package. Please see XMLEncoder.

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`protected class`	`ImageIcon.AccessibleImageIcon` This class implements accessibility support for the `ImageIcon` class.

Field Summary

Fields
Modifier and Type	Field and Description
`protected static Component`	`component` Deprecated. since 1.8
`protected static MediaTracker`	`tracker` Deprecated. since 1.8

Constructor Summary

Constructors
Constructor and Description
`ImageIcon()` Creates an uninitialized image icon.
`ImageIcon(byte[] imageData)` Creates an ImageIcon from an array of bytes which were read from an image file containing a supported image format, such as GIF, JPEG, or (as of 1.3) PNG.
`ImageIcon(byte[] imageData, String description)` Creates an ImageIcon from an array of bytes which were read from an image file containing a supported image format, such as GIF, JPEG, or (as of 1.3) PNG.
`ImageIcon(Image image)` Creates an ImageIcon from an image object.
`ImageIcon(Image image, String description)` Creates an ImageIcon from the image.
`ImageIcon(String filename)` Creates an ImageIcon from the specified file.
`ImageIcon(String filename, String description)` Creates an ImageIcon from the specified file.
`ImageIcon(URL location)` Creates an ImageIcon from the specified URL.
`ImageIcon(URL location, String description)` Creates an ImageIcon from the specified URL.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`AccessibleContext`	`getAccessibleContext()` Gets the AccessibleContext associated with this ImageIcon.
`String`	`getDescription()` Gets the description of the image.
`int`	`getIconHeight()` Gets the height of the icon.
`int`	`getIconWidth()` Gets the width of the icon.
`Image`	`getImage()` Returns this icon's `Image`.
`int`	`getImageLoadStatus()` Returns the status of the image loading operation.
`ImageObserver`	`getImageObserver()` Returns the image observer for the image.
`protected void`	`loadImage(Image image)` Loads the image, returning only when the image is loaded.
`void`	`paintIcon(Component c, Graphics g, int x, int y)` Paints the icon.
`void`	`setDescription(String description)` Sets the description of the image.
`void`	`setImage(Image image)` Sets the image displayed by this icon.
`void`	`setImageObserver(ImageObserver observer)` Sets the image observer for the image.
`String`	`toString()` Returns a string representation of this image.

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

- Field Detail
  - component
```
@Deprecated
protected static final Component component
```
    Deprecated. since 1.8
    
    Do not use this shared component, which is used to track image loading. It is left for backward compatibility only.
  - tracker
```
@Deprecated
protected static final MediaTracker tracker
```
    Deprecated. since 1.8
    
    Do not use this shared media tracker, which is used to load images. It is left for backward compatibility only.
- Constructor Detail
  - ImageIcon
```
public ImageIcon(String filename,
                 String description)
```
    Creates an ImageIcon from the specified file. The image will be preloaded by using MediaTracker to monitor the loading state of the image.
    
    Parameters:
    
    filename - the name of the file containing the image
    
    description - a brief textual description of the image
    
    See Also:
    
    ImageIcon(String)
  - ImageIcon
```
@ConstructorProperties(value="description")
public ImageIcon(String filename)
```
    Creates an ImageIcon from the specified file. The image will be preloaded by using MediaTracker to monitor the loading state of the image. The specified String can be a file name or a file path. When specifying a path, use the Internet-standard forward-slash ("/") as a separator. (The string is converted to an URL, so the forward-slash works on all systems.) For example, specify:
```
    new ImageIcon("images/myImage.gif") 
```
    The description is initialized to the filename string.
    Parameters:
    
    filename - a String specifying a filename or path
    
    See Also:
    
    getDescription()
  - ImageIcon
```
public ImageIcon(URL location,
                 String description)
```
    Creates an ImageIcon from the specified URL. The image will be preloaded by using MediaTracker to monitor the loaded state of the image.
    
    Parameters:
    
    location - the URL for the image
    
    description - a brief textual description of the image
    
    See Also:
    
    ImageIcon(String)
  - ImageIcon
```
public ImageIcon(URL location)
```
    Creates an ImageIcon from the specified URL. The image will be preloaded by using MediaTracker to monitor the loaded state of the image. The icon's description is initialized to be a string representation of the URL.
    
    Parameters:
    
    location - the URL for the image
    
    See Also:
    
    getDescription()
  - ImageIcon
```
public ImageIcon(Image image,
                 String description)
```
    Creates an ImageIcon from the image.
    
    Parameters:
    
    image - the image
    
    description - a brief textual description of the image
  - ImageIcon
```
public ImageIcon(Image image)
```
    Creates an ImageIcon from an image object. If the image has a "comment" property that is a string, then the string is used as the description of this icon.
    
    Parameters:
    
    image - the image
    
    See Also:
    
    getDescription(), Image.getProperty(java.lang.String, java.awt.image.ImageObserver)
  - ImageIcon
```
public ImageIcon(byte[] imageData,
                 String description)
```
    Creates an ImageIcon from an array of bytes which were read from an image file containing a supported image format, such as GIF, JPEG, or (as of 1.3) PNG. Normally this array is created by reading an image using Class.getResourceAsStream(), but the byte array may also be statically stored in a class.
    
    Parameters:
    
    imageData - an array of pixels in an image format supported by the AWT Toolkit, such as GIF, JPEG, or (as of 1.3) PNG
    
    description - a brief textual description of the image
    
    See Also:
    
    Toolkit.createImage(java.lang.String)
  - ImageIcon
```
public ImageIcon(byte[] imageData)
```
    Creates an ImageIcon from an array of bytes which were read from an image file containing a supported image format, such as GIF, JPEG, or (as of 1.3) PNG. Normally this array is created by reading an image using Class.getResourceAsStream(), but the byte array may also be statically stored in a class. If the resulting image has a "comment" property that is a string, then the string is used as the description of this icon.
    
    Parameters:
    
    imageData - an array of pixels in an image format supported by the AWT Toolkit, such as GIF, JPEG, or (as of 1.3) PNG
    
    See Also:
    
    Toolkit.createImage(java.lang.String), getDescription(), Image.getProperty(java.lang.String, java.awt.image.ImageObserver)
  - ImageIcon
```
public ImageIcon()
```
    Creates an uninitialized image icon.
- Method Detail
  - loadImage
```
protected void loadImage(Image image)
```
    Loads the image, returning only when the image is loaded.
    
    Parameters:
    
    image - the image
  - getImageLoadStatus
```
public int getImageLoadStatus()
```
    Returns the status of the image loading operation.
    
    Returns:
    
    the loading status as defined by java.awt.MediaTracker
    
    See Also:
    
    MediaTracker.ABORTED, MediaTracker.ERRORED, MediaTracker.COMPLETE
  - getImage
```
public Image getImage()
```
    Returns this icon's Image.
    
    Returns:
    
    the Image object for this ImageIcon
  - setImage
```
public void setImage(Image image)
```
    Sets the image displayed by this icon.
    
    Parameters:
    
    image - the image
  - getDescription
```
public String getDescription()
```
    Gets the description of the image. This is meant to be a brief textual description of the object. For example, it might be presented to a blind user to give an indication of the purpose of the image. The description may be null.
    
    Returns:
    
    a brief textual description of the image
  - setDescription
```
public void setDescription(String description)
```
    Sets the description of the image. This is meant to be a brief textual description of the object. For example, it might be presented to a blind user to give an indication of the purpose of the image.
    
    Parameters:
    
    description - a brief textual description of the image
  - paintIcon
```
public void paintIcon(Component c,
                      Graphics g,
                      int x,
                      int y)
```
    Paints the icon. The top-left corner of the icon is drawn at the point (x, y) in the coordinate space of the graphics context g. If this icon has no image observer, this method uses the c component as the observer.
    
    Specified by:
    
    paintIcon in interface Icon
    
    Parameters:
    
    c - the component to be used as the observer if this icon has no image observer
    
    g - the graphics context
    
    x - the X coordinate of the icon's top-left corner
    
    y - the Y coordinate of the icon's top-left corner
  - getIconWidth
```
public int getIconWidth()
```
    Gets the width of the icon.
    
    Specified by:
    
    getIconWidth in interface Icon
    
    Returns:
    
    the width in pixels of this icon
  - getIconHeight
```
public int getIconHeight()
```
    Gets the height of the icon.
    
    Specified by:
    
    getIconHeight in interface Icon
    
    Returns:
    
    the height in pixels of this icon
  - setImageObserver
```
public void setImageObserver(ImageObserver observer)
```
    Sets the image observer for the image. Set this property if the ImageIcon contains an animated GIF, so the observer is notified to update its display. For example:
```
     icon = new ImageIcon(...)
     button.setIcon(icon);
     icon.setImageObserver(button);
 
```
    Parameters:
    
    observer - the image observer
  - getImageObserver
```
public ImageObserver getImageObserver()
```
    Returns the image observer for the image.
    
    Returns:
    
    the image observer, which may be null
  - toString
```
public String toString()
```
    Returns a string representation of this image.
    
    Overrides:
    
    toString in class Object
    
    Returns:
    
    a string representing this image
  - getAccessibleContext
```
public AccessibleContext getAccessibleContext()
```
    Gets the AccessibleContext associated with this ImageIcon. For image icons, the AccessibleContext takes the form of an AccessibleImageIcon. A new AccessibleImageIcon instance is created if necessary.
    
    Specified by:
    
    getAccessibleContext in interface Accessible
    
    Returns:
    
    an AccessibleImageIcon that serves as the AccessibleContext of this ImageIcon
    
    Since:
    
    1.3

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Java™ Platform
Standard Ed. 8

All Classes

Summary:
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Field |
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Method

Detail:
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Constr |
Method

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Java javax.swing Class ImageIcon（JDK8）

Class ImageIcon

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

component

tracker

Constructor Detail

ImageIcon

ImageIcon

ImageIcon

ImageIcon

ImageIcon

ImageIcon

ImageIcon

ImageIcon

ImageIcon

Method Detail

loadImage

getImageLoadStatus

getImage

setImage

getDescription

setDescription

paintIcon

getIconWidth

getIconHeight

setImageObserver

getImageObserver

toString

getAccessibleContext