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plurals

POPassing argument 4 of 'obj_setProperty' from incompatible pointer type
primarykey
Id
4730380
data
AcceptedAnswerId
4730413
AnswerCount
2
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2011-01-18T23:52:39.607
FavoriteCount
0
LastActivityDate
2011-01-19T00:00:23.737
LastEditDate
2011-01-19T00:00:23.737
LastEditorUserId
560999
OwnerUserId
560999
ParentId
0
PostTypeId
1
Score
0
ViewCount
510
LastEditorDisplayName
text
Body
I am getting the above compiler error in XCode, and I cannot work out what's going on. <pre><code>#import <UIKit/UIKit.h> // #import "HeaderPanelViewController.h" #import "HTTPClientCommunicator.h" #import "WebSocket.h" @class HeaderPanelViewController; @protocol ServerDateTimeUpdating -(void)serverDateTimeHasBeenUpdatedWithDate:(NSString *) dateString andTime:(NSString *) timeString; @end @interface SmartWardPTAppDelegate : NSObject <UIApplicationDelegate, WebSocketDelegate> { } @property (nonatomic, retain) id<ServerDateTimeUpdating> *serverDateTimeDelegate; .... @end </code></pre> Then in this line <pre><code>@synthesize serverDateTimeDelegate; </code></pre> in ApplicationDelegate.m I am getting the error "Passing argument 4 of 'obj_setProperty' from incompatible pointer type". I did a bit of research and found that 'retain' only works on class types, which is fair enough. If I actually remove the 'retain' from the line <pre><code>@property (nonatomic, retain) id<ServerDateTimeUpdating> *serverDateTimeDelegate; </code></pre> it does compile without complaints. However, I think, that's the wrong thing to do. Surely my 'id' is a class type and surely it should be retained in the setter. BTW, here is the declaration of my HeaderPanelViewController which implements the aforementioned protocol: <pre><code> @interface HeaderPanelViewController : UIViewController<ServerDateTimeUpdating> { } ... @end </code></pre> Also, if I actually do remove the retain I get a problem later down the track when I actually call the setter to register my HeaderPanelViewController as the delegate: <pre><code>// Register this instance as the delegate for ServerDateTimeUpdating // Retrieve the ApplicationDelegate... ApplicationDelegate *applicationDelegate = (ApplicationDelegate *) [UIApplication sharedApplication].delegate; // ...and register this instance applicationDelegate.serverDateTimeDelegate = self; </code></pre> The last line causes the XCode error message "Passing argument 1 of 'setServerDateTimeDelegate' from incompatible pointer type".
Tags
<objective-c><xcode><delegates>
Title
Passing argument 4 of 'obj_setProperty' from incompatible pointer type
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USMcKrassy
UserOwnerUserId
1. USMcKrassy
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. This table or related slice is empty.
CommentsPostId
1. This table or related slice is empty.

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