May 2024
Intermediate to advanced
889 pages
37h 5m
English
Content preview from Java Programming by Pearson
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Working with Images • 713
22.5 THE MEDIATRACKER CLASS
java.awt.MediaTracker is a utility class that simplifi es the process if one were to wait for one or more
images to be loaded before they are displayed. A MediaTracker monitors the preparation of an image or a
group of images and lets one check on them periodically, or wait until they are completed. MediaTracker
uses the ImageObserver interface internally to receive image update.
To use a media tracker, create an instance of MediaTracker and call its addImage method for each
image to be tracked. In addition, each image can be assigned a unique identifi er. This identifi er controls
the ...
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