target-action

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Add selectors to multiple segmented controls in NIB file

I have two UIbuttons, and I want to assign the two buttons to a UITextView so that when one of the buttons is pressed, the text vie开发者_C百科w content changes from what it had when previous button w[详细]

2023-04-08 04:04 分类：问答
Is there any benefit of having (id)sender in IBAction

When coding with cocoa I\'ve noticed that it\'s not necessary to have sender parameter when defining IBAction, hence following action:[详细]

2023-03-15 22:23 分类：问答
Handling target/action weak reference with NSOperation

I\'m using a NSOperation to handle background processing in an iOS app, and I\'m trying to understand the target/action pattern. In the delegate pattern, the delegate is held as a weak reference, and[详细]

2023-03-10 01:23 分类：问答
Mouse events handlers

MyNSImageView is a subclass of NSImageView, here I have: @interface MyNSImageView : NSImageView { } @end[详细]

2023-03-04 19:49 分类：问答
Disable action - user taps on tabbar item to go to root view controller

I want to disable the default action when user taps the tabbar item. For example, i have a tabbar with Tab1, Tab2 and Tab3. In Tab1, user can navigate from View1 to View3 (View1 > View2 > View3). If[详细]

2023-01-25 01:44 分类：问答
Why cannot I open the Preferences from each windows?

I have come across this Cocoa application (source code) that shows a main Window. As long as this window is key it is possible to open the Preferences window from the Main menu as well as by hitting[详细]

2023-01-23 16:50 分类：问答
How do I set the sender on a NSMenuItem's action?

开发者_如何学JAVAThe Apple documentation says that the sender passed to the NSMenuItem\'s action can be set to some custom object, but I can\'t seem to figure out how to do this. Is there a method I\'[详细]

2022-12-30 16:50 分类：问答
《穿越火线》网剧开播，鹿晗、吴磊成了“铁血枪神”？？

《穿越火线》，一款国内老牌实力FPS游戏，自从被曝出要制作网剧后，吸引了大批吃瓜群众的关注。一方面是期待这款老游戏能展现出generate会有怎样的激情，另一方面是被主演鹿晗和Leo吸引。[详细]

2022-12-18 11:17 分类：问答