#[repr(C)]pub struct UIMessageConversationContext { /* private fields */ }
UIConversationContext
and UIMessageConversationContext
only.Expand description
A class that represents a message conversation.
See also Apple’s documentation
Implementations§
Methods from Deref<Target = UIConversationContext>§
Sourcepub unsafe fn threadIdentifier(&self) -> Retained<NSString>
pub unsafe fn threadIdentifier(&self) -> Retained<NSString>
A string that uniquely identifies a conversation. This identifier is persistent for the life of the conversation.
Sourcepub unsafe fn setThreadIdentifier(&self, thread_identifier: &NSString)
pub unsafe fn setThreadIdentifier(&self, thread_identifier: &NSString)
Setter for threadIdentifier
.
Sourcepub unsafe fn entries(&self) -> Retained<NSArray<UIConversationEntry>>
Available on crate feature UIConversationEntry
only.
pub unsafe fn entries(&self) -> Retained<NSArray<UIConversationEntry>>
UIConversationEntry
only.Array of messages in the conversation
Sourcepub unsafe fn setEntries(&self, entries: &NSArray<UIConversationEntry>)
Available on crate feature UIConversationEntry
only.
pub unsafe fn setEntries(&self, entries: &NSArray<UIConversationEntry>)
UIConversationEntry
only.Setter for entries
.
Sourcepub unsafe fn selfIdentifiers(&self) -> Retained<NSSet<NSString>>
pub unsafe fn selfIdentifiers(&self) -> Retained<NSSet<NSString>>
A set of strings that identifies the active person in the conversation on the current device.
Sourcepub unsafe fn setSelfIdentifiers(&self, self_identifiers: &NSSet<NSString>)
pub unsafe fn setSelfIdentifiers(&self, self_identifiers: &NSSet<NSString>)
Setter for selfIdentifiers
.
Sourcepub unsafe fn responsePrimaryRecipientIdentifiers(
&self,
) -> Retained<NSSet<NSString>>
pub unsafe fn responsePrimaryRecipientIdentifiers( &self, ) -> Retained<NSSet<NSString>>
A dictionary that relates participant identifiers to participant names.
Sourcepub unsafe fn setResponsePrimaryRecipientIdentifiers(
&self,
response_primary_recipient_identifiers: &NSSet<NSString>,
)
pub unsafe fn setResponsePrimaryRecipientIdentifiers( &self, response_primary_recipient_identifiers: &NSSet<NSString>, )
Setter for responsePrimaryRecipientIdentifiers
.
Sourcepub unsafe fn participantNameByIdentifier(
&self,
) -> Retained<NSDictionary<NSString, NSPersonNameComponents>>
pub unsafe fn participantNameByIdentifier( &self, ) -> Retained<NSDictionary<NSString, NSPersonNameComponents>>
Map of participant identifiers to participant names
Sourcepub unsafe fn setParticipantNameByIdentifier(
&self,
participant_name_by_identifier: &NSDictionary<NSString, NSPersonNameComponents>,
)
pub unsafe fn setParticipantNameByIdentifier( &self, participant_name_by_identifier: &NSDictionary<NSString, NSPersonNameComponents>, )
Setter for participantNameByIdentifier
.
Methods from Deref<Target = NSObject>§
Sourcepub fn doesNotRecognizeSelector(&self, sel: Sel) -> !
pub fn doesNotRecognizeSelector(&self, sel: Sel) -> !
Handle messages the object doesn’t recognize.
See Apple’s documentation for details.
Methods from Deref<Target = AnyObject>§
Sourcepub fn class(&self) -> &'static AnyClass
Available on crate feature UIIndirectScribbleInteraction
only.
pub fn class(&self) -> &'static AnyClass
UIIndirectScribbleInteraction
only.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());
Sourcepub unsafe fn get_ivar<T>(&self, name: &str) -> &Twhere
T: Encode,
👎Deprecated: this is difficult to use correctly, use Ivar::load
instead.Available on crate feature UIIndirectScribbleInteraction
only.
pub unsafe fn get_ivar<T>(&self, name: &str) -> &Twhere
T: Encode,
Ivar::load
instead.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.
Sourcepub fn downcast_ref<T>(&self) -> Option<&T>where
T: DowncastTarget,
Available on crate feature UIIndirectScribbleInteraction
only.
pub fn downcast_ref<T>(&self) -> Option<&T>where
T: DowncastTarget,
UIIndirectScribbleInteraction
only.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§
Source§impl AsRef<NSObject> for UIMessageConversationContext
impl AsRef<NSObject> for UIMessageConversationContext
Source§impl AsRef<UIConversationContext> for UIMessageConversationContext
impl AsRef<UIConversationContext> for UIMessageConversationContext
Source§fn as_ref(&self) -> &UIConversationContext
fn as_ref(&self) -> &UIConversationContext
Source§impl Borrow<UIConversationContext> for UIMessageConversationContext
impl Borrow<UIConversationContext> for UIMessageConversationContext
Source§fn borrow(&self) -> &UIConversationContext
fn borrow(&self) -> &UIConversationContext
Source§impl ClassType for UIMessageConversationContext
impl ClassType for UIMessageConversationContext
Source§const NAME: &'static str = "UIMessageConversationContext"
const NAME: &'static str = "UIMessageConversationContext"
Source§type Super = UIConversationContext
type Super = UIConversationContext
Source§type ThreadKind = <<UIMessageConversationContext as ClassType>::Super as ClassType>::ThreadKind
type ThreadKind = <<UIMessageConversationContext as ClassType>::Super as ClassType>::ThreadKind
Source§impl Debug for UIMessageConversationContext
impl Debug for UIMessageConversationContext
Source§impl Deref for UIMessageConversationContext
impl Deref for UIMessageConversationContext
Source§impl Hash for UIMessageConversationContext
impl Hash for UIMessageConversationContext
Source§impl NSObjectProtocol for UIMessageConversationContext
impl NSObjectProtocol for UIMessageConversationContext
Source§fn isEqual(&self, other: Option<&AnyObject>) -> bool
fn isEqual(&self, other: Option<&AnyObject>) -> bool
Source§fn hash(&self) -> usize
fn hash(&self) -> usize
Source§fn isKindOfClass(&self, cls: &AnyClass) -> bool
fn isKindOfClass(&self, cls: &AnyClass) -> bool
Source§fn is_kind_of<T>(&self) -> bool
fn is_kind_of<T>(&self) -> bool
isKindOfClass
directly, or cast your objects with AnyObject::downcast_ref