Android: ScrollView and drawing cache?

Question

Are views that scroll from ScrollView automatically cached by the drawing cache? I'm not quite sure that I understand the API documentation.

Answer 1

int PERSISTENT_ALL_CACHES Used to indicate that all drawing caches should be kept in memory.

int PERSISTENT_ANIMATION_CACHE Used to indicate that the animation drawing cache should be kept in memory.

int PERSISTENT_NO_CACHE Used to indicate that the drawing cache should not be stored in memory.

int PERSISTENT_SCROLLING_CACHE Used to indicate that the cache scroll file should be stored in memory.

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Use them in

 public void setPersistentDrawingCache (int drawingCacheToKeep) 

which indicates what types of drawing caches should be stored in memory after they are created.

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Example

  setPersistentDrawingCache(ViewGroup.PERSISTENT_SCROLLING_CACHE); setAlwaysDrawnWithCacheEnabled(true); // call this method //to start (true) and stop (false) using the drawing cache //when you perform performance sensitive operations, like scrolling or animating.