SliverGridDelegateWithFixedCrossAxisCount class
Creates grid layouts with a fixed number of tiles in the cross axis.
For example, if the grid is vertical, this delegate will create a layout with a fixed number of columns. If the grid is horizontal, this delegate will create a layout with a fixed number of rows.
This delegate creates grids with equally sized and spaced tiles.
Here is an example using the childAspectRatio property. On a device with a
screen width of 800.0, it creates a GridView with each tile with a width of
200.0 and a height of 100.0.
link
To create a local project with this code sample, run:
flutter create --sample=rendering.SliverGridDelegateWithFixedCrossAxisCount.1 mysample
Here is an example using the mainAxisExtent property. On a device with a
screen width of 800.0, it creates a GridView with each tile with a width of
200.0 and a height of 150.0.
link
To create a local project with this code sample, run:
flutter create --sample=rendering.SliverGridDelegateWithFixedCrossAxisCount.2 mysample
See also:
- SliverGridDelegateWithMaxCrossAxisExtent, which creates a layout with tiles that have a maximum cross-axis extent.
- SliverGridDelegate, which creates arbitrary layouts.
- GridView, which can use this delegate to control the layout of its tiles.
- SliverGrid, which can use this delegate to control the layout of its tiles.
- RenderSliverGrid, which can use this delegate to control the layout of its tiles.
- Inheritance
-
- Object
- SliverGridDelegate
- SliverGridDelegateWithFixedCrossAxisCount
Constructors
Properties
- childAspectRatio → double
-
The ratio of the cross-axis to the main-axis extent of each child.
final
- crossAxisCount → int
-
The number of children in the cross axis.
final
- crossAxisSpacing → double
-
The number of logical pixels between each child along the cross axis.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- mainAxisExtent → double?
-
The extent of each tile in the main axis. If provided it would define the
logical pixels taken by each tile in the main-axis.
final
- mainAxisSpacing → double
-
The number of logical pixels between each child along the main axis.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
getLayout(
SliverConstraints constraints) → SliverGridLayout -
Returns information about the size and position of the tiles in the grid.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
shouldRelayout(
covariant SliverGridDelegateWithFixedCrossAxisCount oldDelegate) → bool -
Override this method to return true when the children need to be
laid out.
override
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited