Struct objc2_ui_kit::UICollectionViewFocusUpdateContext

#[repr(C)]
pub struct UICollectionViewFocusUpdateContext { /* private fields */ }

Available on crate features UICollectionView and UIFocus only.

Implementations

impl UICollectionViewFocusUpdateContext

pub unsafe fn previouslyFocusedIndexPath(&self) -> Option<Retained<NSIndexPath>>

pub unsafe fn nextFocusedIndexPath(&self) -> Option<Retained<NSIndexPath>>

impl UICollectionViewFocusUpdateContext

Methods declared on superclass NSObject

pub unsafe fn init(this: Allocated<Self>) -> Retained<Self>

pub unsafe fn new(mtm: MainThreadMarker) -> Retained<Self>

Methods from Deref<Target = UIFocusUpdateContext>

pub unsafe fn previouslyFocusedItem( &self ) -> Option<Retained<ProtocolObject<dyn UIFocusItem>>>

pub unsafe fn nextFocusedItem( &self ) -> Option<Retained<ProtocolObject<dyn UIFocusItem>>>

pub unsafe fn previouslyFocusedView(&self) -> Option<Retained<UIView>>

Available on crate features UIResponder and UIView only.

pub unsafe fn nextFocusedView(&self) -> Option<Retained<UIView>>

Available on crate features UIResponder and UIView only.

pub unsafe fn focusHeading(&self) -> UIFocusHeading

Methods from Deref<Target = NSObject>

pub fn doesNotRecognizeSelector(&self, sel: Sel) -> !

Handle messages the object doesn’t recognize.

See Apple’s documentation for details.

Methods from Deref<Target = AnyObject>

pub fn class(&self) -> &'static AnyClass

Available on crate feature UIIndirectScribbleInteraction only.

Dynamically find the class of this object.

Example

Check that an instance of NSObject has the precise class NSObject.

use objc2::ClassType;
use objc2::runtime::NSObject;

let obj = NSObject::new();
assert_eq!(obj.class(), NSObject::class());

pub unsafe fn get_ivar<T>(&self, name: &str) -> &T

where T: Encode,

👎Deprecated: this is difficult to use correctly, use Ivar::load instead.

Available on crate feature UIIndirectScribbleInteraction only.

Use Ivar::load instead.

Safety

The object must have an instance variable with the given name, and it must be of type T.

See Ivar::load_ptr for details surrounding this.

pub unsafe fn get_mut_ivar<T>(&mut self, name: &str) -> &mut T

where T: Encode,

👎Deprecated: this is difficult to use correctly, use Ivar::load_mut instead.

Available on crate feature UIIndirectScribbleInteraction only.

Use Ivar::load_mut instead.

Safety

The object must have an instance variable with the given name, and it must be of type T.

See Ivar::load_ptr for details surrounding this.

Trait Implementations

impl AsMut<AnyObject> for UICollectionViewFocusUpdateContext

fn as_mut(&mut self) -> &mut AnyObject

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsMut<NSObject> for UICollectionViewFocusUpdateContext

fn as_mut(&mut self) -> &mut NSObject

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsMut<UICollectionViewFocusUpdateContext> for UICollectionViewFocusUpdateContext

fn as_mut(&mut self) -> &mut Self

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsMut<UIFocusUpdateContext> for UICollectionViewFocusUpdateContext

fn as_mut(&mut self) -> &mut UIFocusUpdateContext

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsRef<AnyObject> for UICollectionViewFocusUpdateContext

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<NSObject> for UICollectionViewFocusUpdateContext

fn as_ref(&self) -> &NSObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<UICollectionViewFocusUpdateContext> for UICollectionViewFocusUpdateContext

fn as_ref(&self) -> &Self

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<UIFocusUpdateContext> for UICollectionViewFocusUpdateContext

fn as_ref(&self) -> &UIFocusUpdateContext

Converts this type into a shared reference of the (usually inferred) input type.

impl Borrow<AnyObject> for UICollectionViewFocusUpdateContext

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<NSObject> for UICollectionViewFocusUpdateContext

fn borrow(&self) -> &NSObject

Immutably borrows from an owned value.

impl Borrow<UIFocusUpdateContext> for UICollectionViewFocusUpdateContext

fn borrow(&self) -> &UIFocusUpdateContext

Immutably borrows from an owned value.

impl BorrowMut<AnyObject> for UICollectionViewFocusUpdateContext

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

Mutably borrows from an owned value.

impl BorrowMut<NSObject> for UICollectionViewFocusUpdateContext

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

Mutably borrows from an owned value.

impl BorrowMut<UIFocusUpdateContext> for UICollectionViewFocusUpdateContext

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

Mutably borrows from an owned value.

impl ClassType for UICollectionViewFocusUpdateContext

type Super = UIFocusUpdateContext

The superclass of this class.

type Mutability = MainThreadOnly

Whether the type is mutable or immutable.

const NAME: &'static str = "UICollectionViewFocusUpdateContext"

The name of the Objective-C class that this type represents.

fn class() -> &'static AnyClass

Get a reference to the Objective-C class that this type represents.

fn as_super(&self) -> &Self::Super

Get an immutable reference to the superclass.

fn as_super_mut(&mut self) -> &mut Self::Super

Get a mutable reference to the superclass.

fn retain(&self) -> Retained<Self>

where Self: IsRetainable + Sized,

Increment the reference count of the receiver.

impl Debug for UICollectionViewFocusUpdateContext

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

Formats the value using the given formatter.

impl Deref for UICollectionViewFocusUpdateContext

type Target = UIFocusUpdateContext

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for UICollectionViewFocusUpdateContext

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl Hash for UICollectionViewFocusUpdateContext

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl NSObjectProtocol for UICollectionViewFocusUpdateContext

fn isEqual(&self, other: &AnyObject) -> bool

where Self: Sized + Message,

Check whether the object is equal to an arbitrary other object.

fn hash(&self) -> usize

where Self: Sized + Message,

An integer that can be used as a table address in a hash table structure.

fn isKindOfClass(&self, cls: &AnyClass) -> bool

where Self: Sized + Message,

Check if the object is an instance of the class, or one of its subclasses.

fn is_kind_of<T>(&self) -> bool

where T: ClassType, Self: Sized + Message,

Check if the object is an instance of the class type, or one of its subclasses.

fn isMemberOfClass(&self, cls: &AnyClass) -> bool

where Self: Sized + Message,

Check if the object is an instance of a specific class, without checking subclasses.

fn respondsToSelector(&self, aSelector: Sel) -> bool

where Self: Sized + Message,

Check whether the object implements or inherits a method with the given selector.

fn conformsToProtocol(&self, aProtocol: &AnyProtocol) -> bool

where Self: Sized + Message,

Check whether the object conforms to a given protocol.

fn description(&self) -> Retained<NSObject>

where Self: Sized + Message,

A textual representation of the object.

fn debugDescription(&self) -> Retained<NSObject>

where Self: Sized + Message,

A textual representation of the object to use when debugging.

fn isProxy(&self) -> bool

where Self: Sized + Message,

Check whether the receiver is a subclass of the NSProxy root class instead of the usual NSObject.

fn retainCount(&self) -> usize

where Self: Sized + Message,

The reference count of the object.

impl PartialEq for UICollectionViewFocusUpdateContext

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl RefEncode for UICollectionViewFocusUpdateContext

const ENCODING_REF: Encoding = <UIFocusUpdateContext as ::objc2::RefEncode>::ENCODING_REF

The Objective-C type-encoding for a reference of this type.

impl Eq for UICollectionViewFocusUpdateContext

impl Message for UICollectionViewFocusUpdateContext

impl StructuralPartialEq for UICollectionViewFocusUpdateContext