Merge "Only generate paint/mask bitmap when starting animations" into sc-dev

        boolean shouldExit = mExitingAnimation;

        mRippleActive = false;

        mExitingAnimation = false;

        getRipplePaint();

        drawContent(canvas);

        drawPatternedBackground(canvas, cx, cy);

        if (shouldAnimate && mRunningAnimations.size() <= MAX_RIPPLES) {

            startBackgroundAnimation();

        }

        if (mBackgroundOpacity == 0) return;

        Paint p = mRipplePaint;

        Paint p = getRipplePaint();

        float newOpacity = mBackgroundOpacity;

        final int origAlpha = p.getAlpha();

        final int alpha = Math.min((int) (origAlpha * newOpacity + 0.5f), 255);

    @NonNull

    private RippleAnimationSession.AnimationProperties<Float, Paint> createAnimationProperties(

            float x, float y, float cx, float cy, float w, float h) {

        Paint p = new Paint(mRipplePaint);

        Paint p = new Paint(getRipplePaint());

        float radius = getComputedRadius();

        RippleAnimationSession.AnimationProperties<Float, Paint> properties;

        RippleShader shader = new RippleShader();