Android Recycview 分割线

最近有一个需求需要做分割线，网上有一些大致的做法，但感觉都不是那么通俗易懂，然后自己想了想，干脆自己弄吧，后面发现了一个比较好的，非常简洁，分享给大家

效果

代码

class GridSpanDecoration extends RecyclerView.ItemDecoration {
    private Paint mPaint;

    GridSpanDecoration(int color) {
        mPaint = new Paint();
        mPaint.setColor(color);
        mPaint.setStyle(Paint.Style.STROKE);
    }

    @Override
    public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
        super.getItemOffsets(outRect, view, parent, state);
    }

    @Override
    public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) {
        drawVertical(c, parent);
    }

    private void drawVertical(Canvas c, RecyclerView parent) {
        final int childCount = parent.getChildCount();
        for (int i = 0; i < childCount; i++) {
            final View child = parent.getChildAt(i);
            c.drawRect(child.getLeft(), child.getTop(), child.getRight(), child.getBottom(), mPaint);
        }
    }
}

原理就是给每个子view画一个边框就行了！是不是很简单