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GUI Applications - Coggle Diagram
GUI Applications
Threading Issues in GUI
Some tasks must run in the event thread
Long-running tasks must not run in the event thread
Otherwise, UI becomes unresponsive
GUI toolkits like Swing/SWT are not thread-safe
Must confine GUI access to the event thread
Single-threaded GUI Subsystems
Most GUI frameworks:
Single-threaded by design
All GUI operations in one event thread
Application may still be multi-threaded
Care required in splitting work between threads
Threading bugs can lead to subtle, erratic behavior
Long-running Tasks
Should run in background threads
Prevents UI freezing
Use helper classes like:
SwingWorker
Supports cancellation
Shows progress
Handles completion callbacks