Add setStartValue to RNA

 Bug: 15198607
 Should be good-enough for Ripples to use for pseudo-chaining
 support.

Change-Id: Ia8666928ccb69ae401cb583751632a52bd928b63

2 files changed, 3 insertions, 4 deletions

diff --git a/libs/hwui/Animator.cpp b/libs/hwui/Animator.cpp
index b80f7e9..eff3011 100644
--- a/libs/hwui/Animator.cpp
+++ b/libs/hwui/Animator.cpp
@@ -63,7 +63,6 @@ void BaseRenderNodeAnimator::setStartValue(float value) {
 void BaseRenderNodeAnimator::setupStartValueIfNecessary(RenderNode* target, TreeInfo& info) {
     if (mPlayState == NEEDS_START) {
         setStartValue(getValue(target));
-        mPlayState = PENDING;
     }
 }
 
@@ -154,7 +153,8 @@ RenderPropertyAnimator::RenderPropertyAnimator(RenderProperty property, float fi
 }
 
 void RenderPropertyAnimator::onAttached(RenderNode* target) {
-    if (target->isPropertyFieldDirty(mPropertyAccess->dirtyMask)) {
+    if (mPlayState == NEEDS_START
+            && target->isPropertyFieldDirty(mPropertyAccess->dirtyMask)) {
         setStartValue((target->stagingProperties().*mPropertyAccess->getter)());
     }
     (target->mutateStagingProperties().*mPropertyAccess->setter)(finalValue());
diff --git a/libs/hwui/Animator.h b/libs/hwui/Animator.h
index 7741617..a0c7c55 100644
--- a/libs/hwui/Animator.h
+++ b/libs/hwui/Animator.h
@@ -41,6 +41,7 @@ protected:
 class BaseRenderNodeAnimator : public VirtualLightRefBase {
     PREVENT_COPY_AND_ASSIGN(BaseRenderNodeAnimator);
 public:
+    ANDROID_API void setStartValue(float value);
     ANDROID_API void setInterpolator(Interpolator* interpolator);
     ANDROID_API void setDuration(nsecs_t durationInMs);
     ANDROID_API nsecs_t duration() { return mDuration; }
@@ -64,11 +65,9 @@ protected:
     BaseRenderNodeAnimator(float finalValue);
     virtual ~BaseRenderNodeAnimator();
 
-    void setStartValue(float value);
     virtual float getValue(RenderNode* target) const = 0;
     virtual void setValue(RenderNode* target, float value) = 0;
 
-private:
     void callOnFinishedListener(TreeInfo& info);
 
     enum PlayState {