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SliverGridDelegate

Enum SliverGridDelegate

pub enum SliverGridDelegate {
    FixedCrossAxisCount {
        count: usize,
        main_spacing: f64,
        cross_spacing: f64,
        child_aspect_ratio: f64,
    },
    MaxCrossAxisExtent {
        max_cross_extent: f64,
        main_spacing: f64,
        cross_spacing: f64,
        child_aspect_ratio: f64,
    },
}

Expand description

How a sliver_grid divides its cross axis into cells — Flutter’s two stock SliverGridDelegates. Spacings are logical px; child_aspect_ratio is a cell’s cross-axis extent over its main-axis extent (width over height in a vertical grid).

Variants§

FixedCrossAxisCount

Exactly count cells per row.

Fields

§count: usize

§main_spacing: f64

§cross_spacing: f64

§child_aspect_ratio: f64

MaxCrossAxisExtent

As few cells per row as keep each one at most max_cross_extent across: ceil(cross / (max_cross_extent + cross_spacing)), at least one.

Fields

§max_cross_extent: f64

§main_spacing: f64

§cross_spacing: f64

§child_aspect_ratio: f64

Trait Implementations§

impl Clone for SliverGridDelegate

fn clone(&self) -> Self

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl Copy for SliverGridDelegate

impl Debug for SliverGridDelegate

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

impl Default for SliverGridDelegate

fn default() -> Self

Two square cells per row, no spacing.

impl PartialEq for SliverGridDelegate

fn eq(&self, other: &Self) -> bool

Equality operator ==. Read more

1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more

impl StructuralPartialEq for SliverGridDelegate

Auto Trait Implementations§

impl Freeze for SliverGridDelegate

impl RefUnwindSafe for SliverGridDelegate

impl Send for SliverGridDelegate

impl Sync for SliverGridDelegate

impl Unpin for SliverGridDelegate

impl UnsafeUnpin for SliverGridDelegate

impl UnwindSafe for SliverGridDelegate

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> Brush for T
where T: Clone + PartialEq + Default + Debug,

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> ErasedDestructor for T
where T: 'static,

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> StorageAccess<T> for T

fn as_borrowed(&self) -> &T

Borrows the value.

fn into_taken(self) -> T

Takes the value.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = !

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, !>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.