objc2_foundation

Trait NSObjectNSKeyValueObserving

Source 
pub unsafe trait NSObjectNSKeyValueObserving:
    ClassType
    + Sized
    + Sealed {
    // Provided method
    unsafe fn observeValueForKeyPath_ofObject_change_context(
        &self,
        key_path: Option<&NSString>,
        object: Option<&AnyObject>,
        change: Option<&NSDictionary<NSKeyValueChangeKey, AnyObject>>,
        context: *mut c_void,
    ) { ... }
}
Available on crate feature NSKeyValueObserving only.
Expand description

Category “NSKeyValueObserving” on NSObject.

Provided Methods§

Source

unsafe fn observeValueForKeyPath_ofObject_change_context( &self, key_path: Option<&NSString>, object: Option<&AnyObject>, change: Option<&NSDictionary<NSKeyValueChangeKey, AnyObject>>, context: *mut c_void, )

Available on crate features NSDictionary and NSString only.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§