Android recyclerview uses the gridlayoutmanager spacing setting method

To set the spacing using recyclerview, you need to override the class recyclerview.itemdecoration. The following renderings need to be implemented. The spacing is only between the middle grid and the bottom format.

The implementation method is very simple, because this effect is that each row has 3 grids, as long as the left spacing of the first format of each row is 0. All others set the left margin and bottom distance.

The code is as follows:

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