Struct GKLeaderboardViewController 

pub struct GKLeaderboardViewController { /* private fields */ }

👎Deprecated

Available on crate feature GKGameCenterViewController and crate feature GKLeaderboardViewController and crate feature objc2-app-kit and macOS only.

View controller that provides the standard user interface for leaderboards. Present modally from the top view controller.

See also Apple’s documentation

Implementations

impl GKLeaderboardViewController

Methods declared on superclass NSViewController.

pub unsafe fn initWithNibName_bundle( this: Allocated<Self>, nib_name_or_nil: Option<&NSNibName>, nib_bundle_or_nil: Option<&NSBundle>, ) -> Retained<Self>

pub unsafe fn initWithCoder( this: Allocated<Self>, coder: &NSCoder, ) -> Option<Retained<Self>>

Safety

coder possibly has further requirements.

impl GKLeaderboardViewController

Methods declared on superclass NSResponder.

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

impl GKLeaderboardViewController

Methods declared on superclass NSObject.

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

impl GKLeaderboardViewController

pub unsafe fn timeScope(&self) -> GKLeaderboardTimeScope

👎Deprecated

Available on crate feature GKLeaderboard only.

pub unsafe fn setTimeScope(&self, time_scope: GKLeaderboardTimeScope)

👎Deprecated

Available on crate feature GKLeaderboard only.

Setter for timeScope.

pub unsafe fn category(&self) -> Retained<NSString>

👎Deprecated

pub unsafe fn setCategory(&self, category: Option<&NSString>)

👎Deprecated

Setter for category.

This is copied when set.

pub unsafe fn leaderboardDelegate( &self, ) -> Option<Retained<ProtocolObject<dyn GKLeaderboardViewControllerDelegate>>>

👎Deprecated

pub unsafe fn setLeaderboardDelegate( &self, leaderboard_delegate: Option<&ProtocolObject<dyn GKLeaderboardViewControllerDelegate>>, )

👎Deprecated

Setter for leaderboardDelegate.

This is a weak property.

Safety

leaderboard_delegate might not allow None.

Methods from Deref<Target = GKGameCenterViewController>

pub unsafe fn gameCenterDelegate( &self, ) -> Option<Retained<ProtocolObject<dyn GKGameCenterControllerDelegate>>>

pub unsafe fn setGameCenterDelegate( &self, game_center_delegate: Option<&ProtocolObject<dyn GKGameCenterControllerDelegate>>, )

Setter for gameCenterDelegate.

This is a weak property.

pub unsafe fn viewState(&self) -> GKGameCenterViewControllerState

👎Deprecated

pub unsafe fn setViewState(&self, view_state: GKGameCenterViewControllerState)

👎Deprecated

Setter for viewState.

pub unsafe fn leaderboardTimeScope(&self) -> GKLeaderboardTimeScope

👎Deprecated

Available on crate feature GKLeaderboard only.

pub unsafe fn setLeaderboardTimeScope( &self, leaderboard_time_scope: GKLeaderboardTimeScope, )

👎Deprecated

Available on crate feature GKLeaderboard only.

Setter for leaderboardTimeScope.

pub unsafe fn leaderboardIdentifier(&self) -> Option<Retained<NSString>>

👎Deprecated

pub unsafe fn setLeaderboardIdentifier( &self, leaderboard_identifier: Option<&NSString>, )

👎Deprecated

Setter for leaderboardIdentifier.

pub unsafe fn leaderboardCategory(&self) -> Option<Retained<NSString>>

👎Deprecated

pub unsafe fn setLeaderboardCategory( &self, leaderboard_category: Option<&NSString>, )

👎Deprecated

Setter for leaderboardCategory.

Methods from Deref<Target = NSViewController>

pub fn nibName(&self) -> Option<Retained<NSString>>

pub fn nibBundle(&self) -> Option<Retained<NSBundle>>

pub fn representedObject(&self) -> Option<Retained<AnyObject>>

pub unsafe fn setRepresentedObject( &self, represented_object: Option<&AnyObject>, )

Setter for representedObject.

Safety

represented_object should be of the correct type.

pub fn title(&self) -> Option<Retained<NSString>>

pub fn setTitle(&self, title: Option<&NSString>)

Setter for title.

This is copied when set.

pub fn loadView(&self)

pub fn loadViewIfNeeded(&self)

pub unsafe fn commitEditingWithDelegate_didCommitSelector_contextInfo( &self, delegate: Option<&AnyObject>, did_commit_selector: Option<Sel>, context_info: *mut c_void, )

Safety

• delegate should be of the correct type.
• did_commit_selector must be a valid selector.
• context_info must be a valid pointer or null.

pub fn commitEditing(&self) -> bool

pub fn discardEditing(&self)

pub fn viewDidLoad(&self)

pub fn isViewLoaded(&self) -> bool

pub fn viewWillAppear(&self)

pub fn viewDidAppear(&self)

pub fn viewWillDisappear(&self)

pub fn viewDidDisappear(&self)

pub fn preferredContentSize(&self) -> CGSize

pub fn setPreferredContentSize(&self, preferred_content_size: CGSize)

Setter for preferredContentSize.

pub fn updateViewConstraints(&self)

pub fn viewWillLayout(&self)

pub fn viewDidLayout(&self)

pub fn presentViewController_animator( &self, view_controller: &NSViewController, animator: &ProtocolObject<dyn NSViewControllerPresentationAnimator>, )

pub fn dismissViewController(&self, view_controller: &NSViewController)

pub unsafe fn dismissController(&self, sender: Option<&AnyObject>)

Safety

sender should be of the correct type.

pub fn presentedViewControllers( &self, ) -> Option<Retained<NSArray<NSViewController>>>

pub unsafe fn presentingViewController( &self, ) -> Option<Retained<NSViewController>>

Safety

This is not retained internally, you must ensure the object is still alive.

pub fn presentViewControllerAsSheet(&self, view_controller: &NSViewController)

pub fn presentViewControllerAsModalWindow( &self, view_controller: &NSViewController, )

pub fn parentViewController(&self) -> Option<Retained<NSViewController>>

pub fn childViewControllers(&self) -> Retained<NSArray<NSViewController>>

pub fn setChildViewControllers( &self, child_view_controllers: &NSArray<NSViewController>, )

Setter for childViewControllers.

This is copied when set.

pub fn addChildViewController(&self, child_view_controller: &NSViewController)

pub fn removeFromParentViewController(&self)

pub fn insertChildViewController_atIndex( &self, child_view_controller: &NSViewController, index: isize, )

pub fn removeChildViewControllerAtIndex(&self, index: isize)

pub fn preferredContentSizeDidChangeForViewController( &self, view_controller: &NSViewController, )

pub fn viewWillTransitionToSize(&self, new_size: CGSize)

pub fn extensionContext(&self) -> Option<Retained<NSExtensionContext>>

pub fn preferredScreenOrigin(&self) -> CGPoint

pub fn setPreferredScreenOrigin(&self, preferred_screen_origin: CGPoint)

Setter for preferredScreenOrigin.

pub fn preferredMinimumSize(&self) -> CGSize

pub fn preferredMaximumSize(&self) -> CGSize

Methods from Deref<Target = NSResponder>

pub unsafe fn nextResponder(&self) -> Option<Retained<NSResponder>>

Safety

This is not retained internally, you must ensure the object is still alive.

pub unsafe fn setNextResponder(&self, next_responder: Option<&NSResponder>)

Setter for nextResponder.

Safety

This is unretained, you must ensure the object is kept alive while in use.

pub unsafe fn tryToPerform_with( &self, action: Sel, object: Option<&AnyObject>, ) -> bool

Safety

• action must be a valid selector.
• object should be of the correct type.

pub unsafe fn noResponderFor(&self, event_selector: Sel)

Safety

event_selector must be a valid selector.

pub fn acceptsFirstResponder(&self) -> bool

pub fn becomeFirstResponder(&self) -> bool

pub fn resignFirstResponder(&self) -> bool

pub fn flushBufferedKeyEvents(&self)

pub unsafe fn showContextHelp(&self, sender: Option<&AnyObject>)

Safety

sender should be of the correct type.

pub unsafe fn supplementalTargetForAction_sender( &self, action: Sel, sender: Option<&AnyObject>, ) -> Option<Retained<AnyObject>>

Safety

• action must be a valid selector.
• sender should be of the correct type.

pub fn undoManager(&self) -> Option<Retained<NSUndoManager>>

pub unsafe fn presentError_modalForWindow_delegate_didPresentSelector_contextInfo( &self, error: &NSError, window: &NSWindow, delegate: Option<&AnyObject>, did_present_selector: Option<Sel>, context_info: *mut c_void, )

Safety

• delegate should be of the correct type.
• did_present_selector must be a valid selector.
• context_info must be a valid pointer or null.

pub fn presentError(&self, error: &NSError) -> bool

pub fn willPresentError(&self, error: &NSError) -> Retained<NSError>

pub unsafe fn performTextFinderAction(&self, sender: Option<&AnyObject>)

Safety

sender should be of the correct type.

pub unsafe fn newWindowForTab(&self, sender: Option<&AnyObject>)

Safety

sender should be of the correct type.

pub unsafe fn showWritingTools(&self, sender: Option<&AnyObject>)

Safety

sender should be of the correct type.

pub fn performMnemonic(&self, string: &NSString) -> bool

👎Deprecated: This has always returned NO and had no effect on macOS

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

Dynamically find the class of this object.

Panics

May panic if the object is invalid (which may be the case for objects returned from unavailable init/new methods).

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.

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 fn downcast_ref<T>(&self) -> Option<&T>

where T: DowncastTarget,

Attempt to downcast the object to a class of type T.

This is the reference-variant. Use Retained::downcast if you want to convert a retained object to another type.

Mutable classes

Some classes have immutable and mutable variants, such as NSString and NSMutableString.

When some Objective-C API signature says it gives you an immutable class, it generally expects you to not mutate that, even though it may technically be mutable “under the hood”.

So using this method to convert a NSString to a NSMutableString, while not unsound, is generally frowned upon unless you created the string yourself, or the API explicitly documents the string to be mutable.

See Apple’s documentation on mutability and on isKindOfClass: for more details.

Generic classes

Objective-C generics are called “lightweight generics”, and that’s because they aren’t exposed in the runtime. This makes it impossible to safely downcast to generic collections, so this is disallowed by this method.

You can, however, safely downcast to generic collections where all the type-parameters are AnyObject.

Panics

This works internally by calling isKindOfClass:. That means that the object must have the instance method of that name, and an exception will be thrown (if CoreFoundation is linked) or the process will abort if that is not the case. In the vast majority of cases, you don’t need to worry about this, since both root objects NSObject and NSProxy implement this method.

Examples

Cast an NSString back and forth from NSObject.

use objc2::rc::Retained;
use objc2_foundation::{NSObject, NSString};

let obj: Retained<NSObject> = NSString::new().into_super();
let string = obj.downcast_ref::<NSString>().unwrap();
// Or with `downcast`, if we do not need the object afterwards
let string = obj.downcast::<NSString>().unwrap();

Try (and fail) to cast an NSObject to an NSString.

use objc2_foundation::{NSObject, NSString};

let obj = NSObject::new();
assert!(obj.downcast_ref::<NSString>().is_none());

Try to cast to an array of strings.

use objc2_foundation::{NSArray, NSObject, NSString};

let arr = NSArray::from_retained_slice(&[NSObject::new()]);
// This is invalid and doesn't type check.
let arr = arr.downcast_ref::<NSArray<NSString>>();

This fails to compile, since it would require enumerating over the array to ensure that each element is of the desired type, which is a performance pitfall.

Downcast when processing each element instead.

use objc2_foundation::{NSArray, NSObject, NSString};

let arr = NSArray::from_retained_slice(&[NSObject::new()]);

for elem in arr {
    if let Some(data) = elem.downcast_ref::<NSString>() {
        // handle `data`
    }
}

Trait Implementations

impl AsRef<AnyObject> for GKLeaderboardViewController

fn as_ref(&self) -> &AnyObject

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

impl AsRef<GKGameCenterViewController> for GKLeaderboardViewController

fn as_ref(&self) -> &GKGameCenterViewController

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

impl AsRef<GKLeaderboardViewController> for GKLeaderboardViewController

fn as_ref(&self) -> &Self

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

impl AsRef<NSObject> for GKLeaderboardViewController

fn as_ref(&self) -> &NSObject

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

impl AsRef<NSResponder> for GKLeaderboardViewController

fn as_ref(&self) -> &NSResponder

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

impl AsRef<NSViewController> for GKLeaderboardViewController

fn as_ref(&self) -> &NSViewController

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

impl Borrow<AnyObject> for GKLeaderboardViewController

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<GKGameCenterViewController> for GKLeaderboardViewController

fn borrow(&self) -> &GKGameCenterViewController

Immutably borrows from an owned value.

impl Borrow<NSObject> for GKLeaderboardViewController

fn borrow(&self) -> &NSObject

Immutably borrows from an owned value.

impl Borrow<NSResponder> for GKLeaderboardViewController

fn borrow(&self) -> &NSResponder

Immutably borrows from an owned value.

impl Borrow<NSViewController> for GKLeaderboardViewController

fn borrow(&self) -> &NSViewController

Immutably borrows from an owned value.

impl ClassType for GKLeaderboardViewController

const NAME: &'static str = "GKLeaderboardViewController"

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

type Super = GKGameCenterViewController

The superclass of this class.

type ThreadKind = <<GKLeaderboardViewController as ClassType>::Super as ClassType>::ThreadKind

Whether the type can be used from any thread, or from only the main thread.

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.

impl Debug for GKLeaderboardViewController

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

Formats the value using the given formatter.

impl Deref for GKLeaderboardViewController

type Target = GKGameCenterViewController

The resulting type after dereferencing.

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

Dereferences the value.

impl Hash for GKLeaderboardViewController

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 Message for GKLeaderboardViewController

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

where Self: Sized,

Increment the reference count of the receiver.

impl NSCoding for GKLeaderboardViewController

unsafe fn encodeWithCoder(&self, coder: &NSCoder)

where Self: Sized + Message,

Safety

unsafe fn initWithCoder( this: Allocated<Self>, coder: &NSCoder, ) -> Option<Retained<Self>>

where Self: Sized + Message,

Safety

impl NSEditor for GKLeaderboardViewController

fn discardEditing(&self)

where Self: Sized + Message,

fn commitEditing(&self) -> bool

where Self: Sized + Message,

unsafe fn commitEditingWithDelegate_didCommitSelector_contextInfo( &self, delegate: Option<&AnyObject>, did_commit_selector: Option<Sel>, context_info: *mut c_void, )

where Self: Sized + Message,

Safety

fn commitEditingAndReturnError(&self) -> Result<(), Retained<NSError>>

where Self: Sized + Message,

impl NSObjectProtocol for GKLeaderboardViewController

fn isEqual(&self, other: Option<&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,

👎Deprecated: use isKindOfClass directly, or cast your objects with AnyObject::downcast_ref

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 NSSeguePerforming for GKLeaderboardViewController

unsafe fn prepareForSegue_sender( &self, segue: &NSStoryboardSegue, sender: Option<&AnyObject>, )

where Self: Sized + Message,

Safety

unsafe fn performSegueWithIdentifier_sender( &self, identifier: &NSString, sender: Option<&AnyObject>, )

where Self: Sized + Message,

Safety

unsafe fn shouldPerformSegueWithIdentifier_sender( &self, identifier: &NSString, sender: Option<&AnyObject>, ) -> bool

where Self: Sized + Message,

Safety

impl NSUserInterfaceItemIdentification for GKLeaderboardViewController

fn identifier(&self) -> Option<Retained<NSString>>

where Self: Sized + Message,

fn setIdentifier(&self, identifier: Option<&NSString>)

where Self: Sized + Message,

Setter for identifier.

impl PartialEq for GKLeaderboardViewController

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl RefEncode for GKLeaderboardViewController

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

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

impl DowncastTarget for GKLeaderboardViewController

impl Eq for GKLeaderboardViewController

impl GKViewController for GKLeaderboardViewController