第一个索引没有显示项目装饰

Question

我有一个带有圆形指示器的 static 图像轮播。 然而，由一系列点组成的指标在超过第一个索引之前不会显示。 因此，在您滚动到第二张图像之前，没有任何指示符。 为什么第一个索引的指标没有显示？

private void populateCirclesInitial(LinearLayout linearLayout) {
    populateCircles(linearLayout, 0);
}

private void populateCircles(LinearLayout linearLayout, int index) {
    if (linearLayout != null) {
        linearLayout.removeAllViewsInLayout();
        final int size = bookTestAdvantageList.size();
        final boolean isValidIndex = index >= 0 && index < size;
        if (!isValidIndex) return;
        for (int i = 0; i < size; i++) {
            CircleView circleView = new CircleView(this, i == index);
            circleView.requestLayout();
            circleView.postInvalidate();
            circleView.setMinimumHeight(12);
            circleView.setMinimumWidth(12);
            linearLayout.addView(circleView);

        }
        linearLayout.postInvalidate();
        linearLayout.requestLayout();
    }
}

private void initRecyclerAdapter(RecyclerView recyclerView, LinearLayout circlesViewLinearLayout) {
    if (recyclerView != null) {
        PagerSnapHelper snapHelper = new PagerSnapHelper();
        recyclerView.setHasFixedSize(true);
        final LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
        linearLayoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
        recyclerView.setLayoutManager(linearLayoutManager);
        final BookCarouselAdapter adapter = new BookCarouselAdapter(this.getBaseContext(), bookTestAdvantageList);
        adapter.addListener((v, position, selectedItems) -> Log.d("duck", "Position: " + position + ", Selected item: " + selectedItems));
        recyclerView.setAdapter(adapter);

        snapHelper.attachToRecyclerView(recyclerView);
        initRecyclerViewPosition(linearLayoutManager, recyclerView, circlesViewLinearLayout);
    }
}