給GridLayoutManager 設(shè)置簡(jiǎn)單的分割線

mBinding.rvWorkbench.addItemDecoration(
            DividerItemDecoration(
                activity,
                RecyclerView.VERTICAL
            )
        )

這樣設(shè)置只能是出現(xiàn)在垂直方向上，缺少了水平方向的

其實(shí)我們可以再次設(shè)置一次

mBinding.rvWorkbench.addItemDecoration(
            DividerItemDecoration(
                activity,
                RecyclerView.HORIZONTAL
            )
        )

這樣 水平 垂直方向上都有了

當(dāng)然 你也可以自定義shape

        val dividerVertical = DividerItemDecoration(activity, RecyclerView.VERTICAL)
        dividerVertical.setDrawable(resources.getDrawable(R.drawable.shape_item_decoration))
        mBinding.rvWorkbench.addItemDecoration(dividerVertical)

        val dividerHorizontal = DividerItemDecoration(activity, RecyclerView.HORIZONTAL)
        dividerHorizontal.setDrawable(resources.getDrawable(R.drawable.shape_item_decoration))
        mBinding.rvWorkbench.addItemDecoration(dividerHorizontal)

shape_item_decoration.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#ffd1d1d6" />
    <size
        android:width="1dp"
        android:height="1dp" />
</shape>

QQ20200427-164508@2x.png