使用RecyclerView和GridLayoutManager布局以及设置ItemDecoration实现ImageView元素之间的间隔。

步骤如下：

1. 在布局文件中添加RecyclerView：

2. 在Activity或Fragment中初始化RecyclerView：

RecyclerView recyclerView = findViewById(R.id.recyclerView);
GridLayoutManager layoutManager = new GridLayoutManager(this, 2);
recyclerView.setLayoutManager(layoutManager);
MyAdapter adapter = new MyAdapter(imageList);
recyclerView.setAdapter(adapter);
recyclerView.addItemDecoration(new GridSpacingItemDecoration(2, 16, true));

其中，“2”表示列数，即每行显示几个ImageView元素，“16”表示间隔大小，可以根据实际情况设置。

3. 创建GridSpacingItemDecoration类：

public class GridSpacingItemDecoration extends RecyclerView.ItemDecoration {
 
    private final int spanCount;
    private final int spacing;
    private final boolean includeEdge;
 
    public GridSpacingItemDecoration(int spanCount, int spacing, boolean includeEdge) {
        this.spanCount = spanCount;
        this.spacing = spacing;
        this.includeEdge = includeEdge;
    }
 
    @Override
    public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
        int position = parent.getChildAdapterPosition(view); // item position
        int column = position % spanCount; // item column
 
        if (includeEdge) {
            outRect.left = spacing - column * spacing / spanCount; // spacing - column * ((1f / spanCount) * spacing)
            outRect.right = (column + 1) * spacing / spanCount; // (column + 1) * ((1f / spanCount) * spacing)
 
            if (position < spanCount) { // top edge
                outRect.top = spacing;
            }
            outRect.bottom = spacing; // item bottom
        } else {
            outRect.left = column * spacing / spanCount; // column * ((1f / spanCount) * spacing)
            outRect.right = spacing - (column + 1) * spacing / spanCount; // spacing - (column + 1) * ((1f /    spanCount) * spacing)
            if (position >= spanCount) {
                outRect.top = spacing; // item top
            }
        }
    }
}

4. 创建MyAdapter类并在其中使用Glide加载图片：

public class MyAdapter extends RecyclerView.Adapter {
 
    private final List imageList;