Bug 33523 - Bindings reference documentation is wrong for categories
Summary: Bindings reference documentation is wrong for categories
Alias: None
Product: Documentation
Classification: Xamarin
Component: MonoTouch (show other bugs)
Version: unspecified
Hardware: PC Mac OS
: --- normal
Target Milestone: ---
Assignee: CraigD
Depends on:
Reported: 2015-08-31 19:18 UTC by Adam Kemp
Modified: 2017-05-25 23:39 UTC (History)
1 user (show)

See Also:
Is this bug a regression?: ---
Last known good build:


Description Adam Kemp 2015-08-31 19:18:24 UTC
The documentation here: https://developer.xamarin.com/guides/ios/advanced_topics/binding_objective-c/binding_objc_libs/#Binding_Class_Extensions

has outdated information. The new way to do this for unified projects is something like this:

    [Category, BaseType (typeof (NSString))]
    interface NSStringDrawingExtensions {
            [Export ("drawAtPoint:withFont:")]
            CGSize DrawString (CGPoint point, UIFont font);

There should also probably be an example of binding a property. Example:

@interface UIView (MyIn)
@property (nonatomic, strong) NSString *name;

Would need two separate methods:

  [Category, BaseType(typeof(UIView))]
  interface UIView_MyIn
    [Export ("name")]
    string Name();

    void SetName(string name);
Comment 1 CraigD 2017-05-25 23:39:01 UTC
this _seems_ like it was addressed (the unified fix, at least). the engineering team has added additional examples to the page.

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