GridView
The Stac GridView allows you to build a Flutter GridView widget using JSON. To know more about the GridView widget in Flutter, refer to the official documentation.
Properties​
Property | Type | Description |
---|---|---|
scrollDirection | Axis | The axis along which the grid scrolls. Defaults to Axis.vertical . |
reverse | bool | Whether the grid scrolls in the reverse direction. Defaults to false . |
primary | bool | Whether this is the primary scroll view. Defaults to false . |
physics | StacScrollPhysics? | The physics for the scroll view. |
shrinkWrap | bool | Whether the extent of the scroll view in the scrollDirection should be determined by the contents being viewed. Defaults to false . |
padding | StacEdgeInsets? | The amount of space by which to inset the grid. |
crossAxisCount | int? | The number of children in the cross axis. |
mainAxisSpacing | double | The amount of space between the children in the main axis. Defaults to 0.0 . |
crossAxisSpacing | double | The amount of space between the children in the cross axis. Defaults to 0.0 . |
childAspectRatio | double | The ratio of the cross-axis to the main-axis extent of each child. Defaults to 1.0 . |
mainAxisExtent | double? | The extent of each child in the main axis. |
addAutomaticKeepAlives | bool | Whether to add automatic keep-alives. Defaults to true . |
addRepaintBoundaries | bool | Whether to add repaint boundaries. Defaults to true . |
addSemanticIndexes | bool | Whether to add semantic indexes. Defaults to true . |
cacheExtent | double? | The extent to which the content is cached. |
children | List<Map<String, dynamic>> | The widgets below this widget in the tree. Defaults to an empty list. |
semanticChildCount | int? | The number of children for semantics purposes. |
dragStartBehavior | DragStartBehavior | The drag start behavior. Defaults to DragStartBehavior.start . |
keyboardDismissBehavior | ScrollViewKeyboardDismissBehavior | The keyboard dismiss behavior. Defaults to ScrollViewKeyboardDismissBehavior.manual . |
restorationId | String? | The restoration ID to save and restore the scroll offset. |
clipBehavior | Clip | The clip behavior of the grid. Defaults to Clip.hardEdge . |
Example JSON​
{
"type": "gridView",
"scrollDirection": "vertical",
"reverse": false,
"primary": false,
"physics": {
"type": "scrollPhysics",
"name": "bouncing"
},
"shrinkWrap": false,
"padding": {
"left": 10,
"top": 10,
"right": 10,
"bottom": 10
},
"crossAxisCount": 2,
"mainAxisSpacing": 10.0,
"crossAxisSpacing": 10.0,
"childAspectRatio": 1.0,
"mainAxisExtent": 100.0,
"addAutomaticKeepAlives": true,
"addRepaintBoundaries": true,
"addSemanticIndexes": true,
"cacheExtent": 100.0,
"children": [
{
"type": "text",
"data": "Item 1"
},
{
"type": "text",
"data": "Item 2"
}
],
"semanticChildCount": 2,
"dragStartBehavior": "start",
"keyboardDismissBehavior": "manual",
"restorationId": "grid_view_1",
"clipBehavior": "hardEdge"
}