Android recyclerview删除所有项目装饰器

Question

我这样做了:

dividerItemDecoration = new DividerItemDecoration(
        recyclerView.getContext(),
        DividerItemDecoration.VERTICAL
    );
recyclerView.addItemDecoration(dividerItemDecoration);

然后我改变设备方向,所以现在我没有dividerItemDecoration,我想从recyclerView删除分隔符.可能吗？

Answer 1

你可以这样做:

while (recyclerView.getItemDecorationCount() > 0) {
    recyclerView.removeItemDecorationAt(0);
}

Answer 2

要删除ItemDecoration,您需要使用removeItemDecoration.对于您的情况,代码将是:

recyclerView.removeItemDecoration(dividerItemDecoration);

Answer 3

添加到 Szymon Chaber 答案这里是一个 kotlin 扩展，使其可重用：

fun <T : RecyclerView> T.removeItemDecorations() {
    while (itemDecorationCount > 0) {
        removeItemDecorationAt(0)
    }
}