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Commit fc5164a6 authored by Phil Weaver's avatar Phil Weaver Committed by android-build-merger
Browse files

Reduce extra a11y events when alpha changes. am: 9937f81a 

am: 2dd6ce7a

Change-Id: I70adc04b7890ce4a9b207c34d77461bcf22d413c
parents 22e913aa 2dd6ce7a

core/java/android/view/View.java

+4 −2
Original line number Diff line number Diff line
@@ -12359,6 +12359,10 @@ public class View implements Drawable.Callback, KeyEvent.Callback, 
    public void setAlpha(@FloatRange(from=0.0, to=1.0) float alpha) {

        ensureTransformationInfo();

        if (mTransformationInfo.mAlpha != alpha) {

            // Report visibility changes, which can affect children, to accessibility

            if ((alpha == 0) ^ (mTransformationInfo.mAlpha == 0)) {

                notifySubtreeAccessibilityStateChangedIfNeeded();

            }

            mTransformationInfo.mAlpha = alpha;

            if (onSetAlpha((int) (alpha * 255))) {

                mPrivateFlags |= PFLAG_ALPHA_SET;
@@ -12369,8 +12373,6 @@ public class View implements Drawable.Callback, KeyEvent.Callback, 
                mPrivateFlags &= ~PFLAG_ALPHA_SET;

                invalidateViewProperty(true, false);

                mRenderNode.setAlpha(getFinalAlpha());

                notifyViewAccessibilityStateChangedIfNeeded(

                        AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);

            }

        }

    }