Flutter Sliver Grid delegate that allow to generate box patterns for SliverGrid.
In the pubspec.yaml of your flutter project, add the following dependency:
dependencies:
...
flutter_grid_patterm: <latest_version>import 'package:flutter_grid_pattern/flutter_grid_pattern.dart';
class GridPatternDemo extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
body: CustomScrollView(slivers: [
SliverGrid(
// Attach SliverGridPatternDelegate to SliverGrid
gridDelegate: SliverGridPatternDelegate(patterns: [
// Add your list of patterns
PatternNTiles(tileHeight: 150, nb: 3),
PatternRow(patterns: [
PatternNTiles(tileHeight: 150, nb: 1),
PatternNTiles(tileHeight: 150, nb: 2),
]),
]),
delegate:
SliverChildBuilderDelegate((BuildContext context, int index) {
return Container(
child: Text("tile $index")
);
}),
)
]));
}
}Create an horizontal list of tile. All tiles have the same width and a fixed height.
| Parameter | Description |
|---|---|
| tileHeight | Height of the tiles |
| nb | Number of tiles |
// Pattern is a row composed of 4 tiles
SliverGridPatternDelegate(patterns: [
PatternNTiles(tileHeight: 75, nb: 4),
]),
)Create 2 tiles aligned horizontally. Tiles have the same height. Width is defined by a ratio.
| Parameter | Description |
|---|---|
| tileHeight | Height of the tiles |
| ratio | Width ratio, corresponds to width of tile1 over width of tile2 |
// Pattern composed of
// 2 tiles with width of 1/3 and 2/3
// followed by
// 2 tiles with width of 2/3 and 1/3
SliverGridPatternDelegate(patterns: [
Pattern2Tiles(tileHeight: 150, ratio: 1/3.0),
Pattern2Tiles(tileHeight: 150, ratio: 2/3.0),
]),
)
Create a row that contains a list of patterns. All pattern of the list have the same width. The height of the row is the height of the highest pattern in the list.
| Parameter | Description |
|---|---|
| patterns | A list of patterns |
// Pattern is composed of a row containing 2 patterns :
// First 50% : 1 tile
// Last 50% : row of 2 tiles
SliverGridPatternDelegate(patterns: [
PatternRow(patterns: [
PatternNTiles(tileHeight: 75, nb: 1),
PatternNTiles(tileHeight: 75, nb: 2),
]),
]),
)
Place a list of patterns in a column.
| Parameter | Description |
|---|---|
| patterns | A list of patterns |
// A column composed of 1 tile followed by a row of 2 tiles
SliverGridPatternDelegate(patterns: [
PatternCol(patterns: [
PatternNTiles(tileHeight: 400, nb: 1),
PatternNTiles(tileHeight: 200, nb: 2),
]),
]),
)
// A row composed of 2 vertical tiles followed horizontally by another tile
SliverGridPatternDelegate(patterns: [
PatternRow(patterns: [
PatternCol(patterns: [
PatternNTiles(tileHeight: 100, nb: 1),
PatternNTiles(tileHeight: 100, nb: 1),
]),
PatternNTiles(tileHeight: 200, nb: 1),
]),
]),
)