如何删除间距Horizo​​ntal GridLayoutManager recyclerview android

Question

我使用recyclerview和grid layoutmanager我没有添加ItemDecoration

GridLayoutManager gridLayoutManager = new GridLayoutManager(TestResultActivity.this, 4, GridLayoutManager.HORIZONTAL, false);
            gridLayoutManager.setAutoMeasureEnabled(true);
            grid.setLayoutManager(gridLayoutManager);

但是在两行之间,有一行,我不添加它.我想删除它.