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Commit 4f1acfb5 authored by Teng-Hui Zhu's avatar Teng-Hui Zhu Committed by Tenghui Zhu
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Mutate the drawable if a valid state change happen 

In another word, create another cached bitmap, when the current VectorDrawable
will look differently when state changed.

b/29870392

Change-Id: I7a5ef91091e547a930368286defc7ab96aeb9471
parent 74f7f2ec

graphics/java/android/graphics/drawable/VectorDrawable.java

+6 −3
Original line number Diff line number Diff line
@@ -243,9 +243,7 @@ public class VectorDrawable extends Drawable { 
     * constructors to set the state and initialize local properties.

     */

    private VectorDrawable(@NonNull VectorDrawableState state, @Nullable Resources res) {

        // Constant state sharing is disabled until we fix onStateChanged()

        // affecting the shared bitmap.

        mVectorState = new VectorDrawableState(state);

        mVectorState = state;

        updateLocalState(res);

    }
@@ -391,6 +389,11 @@ public class VectorDrawable extends Drawable { 
    protected boolean onStateChange(int[] stateSet) {

        boolean changed = false;



        // When the VD is stateful, we need to mutate the drawable such that we don't share the

        // cache bitmap with others. Such that the state change only affect this new cached bitmap.

        if (isStateful()) {

            mutate();

        }

        final VectorDrawableState state = mVectorState;

        if (state.onStateChange(stateSet)) {

            changed = true;