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Commit 1f553cfc authored by Selim Cinek's avatar Selim Cinek
Browse files

Removed always running preDrawListener 

Replaced a always running preDrawListener with one which is just posted on
demand.

Change-Id: Ie7667302d848fe4a109c04dc91376f0b44d3acd3
parent 319bdc45

packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java

+10 −9
Original line number Diff line number Diff line
@@ -106,15 +106,14 @@ public class NotificationStackScrollLayout extends ViewGroup 
    private ExpandableView.OnHeightChangedListener mOnHeightChangedListener;

    private boolean mChildHierarchyDirty;

    private boolean mIsExpanded = true;

    private boolean mChildrenNeedUpdate;

    private ViewTreeObserver.OnPreDrawListener mPreDrawListener

    private boolean mChildrenUpdateRequested;

    private ViewTreeObserver.OnPreDrawListener mChildrenUpdater

            = new ViewTreeObserver.OnPreDrawListener() {

        @Override

        public boolean onPreDraw() {

            if (mChildrenNeedUpdate) {

            updateChildren();

                mChildrenNeedUpdate = false;

            }

            mChildrenUpdateRequested = false;

            getViewTreeObserver().removeOnPreDrawListener(this);

            return true;

        }

    };
@@ -181,7 +180,6 @@ public class NotificationStackScrollLayout extends ViewGroup 
        mPaddingBetweenElements = context.getResources()

                .getDimensionPixelSize(R.dimen.notification_padding);

        mStackScrollAlgorithm = new StackScrollAlgorithm(context);

        getViewTreeObserver().addOnPreDrawListener(mPreDrawListener);

    }



    @Override
@@ -275,9 +273,12 @@ public class NotificationStackScrollLayout extends ViewGroup 
    }



    private void requestChildrenUpdate() {

        mChildrenNeedUpdate = true;

        if (!mChildrenUpdateRequested) {

            getViewTreeObserver().addOnPreDrawListener(mChildrenUpdater);

            mChildrenUpdateRequested = true;

            invalidate();

        }

    }



    private boolean isCurrentlyAnimating() {

        return mStateAnimator.isRunning();