Files
frameworks_base/core/java
Phil Weaver 9937f81ac6 Reduce extra a11y events when alpha changes.
Changes in alpha only matter if they affect visibility,
so only 0 <-> nonzero changes are worth reporting. Report
them as subtree changes, as visibility affects subviews.

Not reporting every change greatly reduces the number of
event reported when alpha is animated.

Bug: 30183085
Change-Id: I905d53aa81ca8248b3aed86a91842ef499f303a8
2016-08-01 17:41:19 -07:00
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