GridLayoutManager每行具有不同的列数 [英] GridLayoutManager with different column count per row

问题描述

我正在尝试使用GridLayoutManager构建RecyclerView，该GridLayoutManager每行具有可变的列数，如下所示:

I'm trying to build a RecyclerView with a GridLayoutManager which has a variable column count per row, something like this:

同一行中所有项目的宽度总和将始终是屏幕宽度.

The sum of the width of all items in the same row will always be the screen width.

我试图重新组织项目列表，将它们按行列表分组，然后每行增加一个LinearLayout.效果不是很好.

I tried to re-organize the list of items, grouping them by list of rows, and then inflating a LinearLayout per row. It didn't work quite well.

因此，我陷入了沉思，没了主意.任何帮助将不胜感激

So I'm stuck and out of ideas. Any help would be really appreciated

推荐答案

您可以使用GridLayoutManager.要在行中具有不同的列数，您必须覆盖

You can use GridLayoutManager. To have different column count in row you have to override setSpanSizeLookup.

示例:

//spanCount = 3 (just for example)
GridLayoutManager gridLayoutManager = new GridLayoutManager(getAppContext(), spanCount);
gridLayoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
    @Override
    public int getSpanSize(int position) {
        //define span size for this position
        //some example for your first three items
        if(position == item1) {
            return 1; //item will take 1/3 space of row
        } else if(position == item2) {
            return 2; //you will have 2/3 space of row
        } else if(position == item3) {
            return 3; //you will have full row size item
        }
     }
});

我上面显示的代码示例仅显示您可以更改项目大小.请注意spanSize< = spanCount.

I code sample above I just show have you can change item size. Pay attention that spanSize <= spanCount.

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