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A grid needs to know how wide its columns are. Compose offers two strategies: Fixed column counts and Adaptive minimum widths. 📐

You already met GridCells.Fixed(n). It always shows n columns, so cells grow or shrink to fit the screen width.

On a phone, 3 columns look great. On a tablet, those same 3 columns become awkwardly wide. Fixed does not adapt to bigger screens.

With GridCells.Adaptive(minSize), you specify a minimum cell width. Compose fits as many columns as possible, then stretches them to fill.

Compose divides the available width by your minSize to decide the column count. A wider screen simply gets more columns, automatically.

Adaptive grids look right on phones, foldables, and tablets without any extra code. One minSize value handles every screen. 📱

Pick a minSize that keeps content readable at its smallest. Too tiny and cells feel cramped; too large and small phones show one column.

Use Fixed when the design demands an exact count, like a 7-day calendar week that must always be 7 columns wide.

Both strategies pair with arrangements. The minSize in Adaptive is measured before spacing, so leave room for your gaps.

The same Fixed and Adaptive cells work in LazyHorizontalGrid, which scrolls sideways and fills rows top to bottom.

Default to Adaptive for content galleries so they scale across devices. Reserve Fixed for layouts that need a precise, meaningful column count.

Pick the responsive choice.

You compared Fixed exact counts with Adaptive minimum widths. Adaptive scales across devices; Fixed locks an intentional column count. 🎯