Only one thread at a time can draw to a SurfaceView. To ensure this, you must first lock the SurfaceHolder by ________.
A) calling lockSurfaceHolder
B) specifying it as the expression in the parentheses of a synchronized block.
C) calling getSurfaceHolderLock
D) None of the above

Question

Only one thread at a time can draw to a SurfaceView. To ensure this, you must first lock the SurfaceHolder by ________. 
A) calling lockSurfaceHolder  
B) specifying it as the expression in the parentheses of a synchronized block.
C) calling getSurfaceHolderLock
D) None of the above

Quizplus · Accepted Answer

The correct way to lock the SurfaceHolder is by specifying it as the expression inside a synchronized block. This ensures that only one thread at a time can access and draw on the SurfaceView. The other options, such as calling lockSurfaceHolder or getSurfaceHolderLock, are not valid methods and do not exist.

Only One Thread at a Time Can Draw to a SurfaceView