openParentApplication:reply: error with asynchronous network call in containing app - ios

Question

I'm getting stuck with an error when using my Watchkit Application. When I launch it, I ask the containing iOS app to get some data from network. The problem is that I get an error saying the containing app never calls 'reply()' :o But looking at my code, it should call it.
I tried to debug every step from openParentApplication to the 'reply()' call, and it seems to work well =X
Here is my code in the Watchkit extension
- (void)initDiaporamasWithSuccess:(void (^)())success andFailure:(void (^)(NSError*))failure {
NSLog(#"Ask to load diapos");
__weak typeof(self) weakSelf = self;
[WKInterfaceController openParentApplication:#{#"watchKit": #"watchKit.initDiapos"} reply:^(NSDictionary *replyInfo, NSError *error) {
if (error) {
NSLog(#"%#", error);
if (failure) {
failure(error);
}
return;
}
NSLog(#"got items : %#", replyInfo[#"diapos"]);
weakSelf.diaporamas = replyInfo[#"diapos"];
[weakSelf setDiaporama:replyInfo[#"firstDiapo"] AtIndex:0];
if (success) {
success();
}
}];
}
The result should be an NSDictionary containing an NSArray with some diaporamas basic informations, and an object (Diapo) containing the full informations of the first diaporama (e.g. self.diaporamas[0])
And here is the code in the containing app's AppDelegate :
- (void)application:(UIApplication *)application handleWatchKitExtensionRequest:(NSDictionary *)userInfo reply:(void (^)(NSDictionary *))reply {
// Maybe we could handle multiple watchKit extension calls that way ?
// Something like a key-value 'protocol' to run the right block of code
NSString *watchKitCall = userInfo[#"watchKit"];
NSLog(#"watchKit handled");
if ([watchKitCall isEqualToString:#"watchKit.initDiapos"]) {
[AppDelegate watchInitialObjects:^(NSDictionary *info) {
NSLog(#"Managed to get initial infos");
reply(info);
} failure:^(NSError *error) {
NSLog(#"Fail : %#", error);
reply(#{#"error": error});
}];
}
}
+ (void) watchInitialObjects:(void (^)(NSDictionary *info))success failure:(void (^)(NSError *error))failure {
NSDictionary *parameters = #{#"site" : #(14), #"limit" : #(10)};
[AppDelegate requestDiapoListWithParams:parameters success:^(NSArray *items) {
if ([items count] == 0)
{
NSError *error = [NSError errorWithDomain:#"com.domain.app" code:404 userInfo:nil];
failure(error);
return;
}
Diapo *firstDiapo = [items firstObject];
[AppDelegate requestDiapoDetailWithDiapo:firstDiapo success:^(Diapo *diapo) {
if (!diapo)
{
NSError *error = [NSError errorWithDomain:#"com.domain.app" code:404 userInfo:nil];
failure(error);
return;
}
NSDictionary *result = #{
#"firstDiapo" : diapo,
#"diapos" : items
};
success(result);
} failure:^(NSError *error) {
failure(error);
}];
} failure:^(NSError *error) {
failure(error);
}];
}
In the watchKitHandler, I call watchInitialObjects to get the diaporamas array and the first diaporama's informations.
In the watchInitialObjects, I make a first network call to get the array, and on success, I make an other network call to get the firs diaporama informations.
To make the calls and map the JSON into objects, I use RESTKit
I really don't get what could be the error =x
UPDATE
I forgot to write the error I get, here it is :
Error Domain=com.apple.watchkit.errors Code=2 "The UIApplicationDelegate in the iPhone App never called reply() in -[UIApplicationDelegate application:handleWatchKitExtensionRequest:reply:]" UserInfo=0x7fcb53e12830 {NSLocalizedDescription=The UIApplicationDelegate in the iPhone App never called reply() in -[UIApplicationDelegate application:handleWatchKitExtensionRequest:reply:]}
And I kept trying to know why I get this error, and I think I found it:
It seems that there is a (very little) timeout to do the work in the containing app. But I mapped the JSON data I received directly in the containing app and then, send those custom objects in the reply(). But when I removed the mapping part, it worked well !
So...that's why I think that was the problem =X
Does anybody could approve my thoughts or corrects me ?

Answer 1

After hours of searching and testing different codes, I finally found my problem...and it's obvious when we read the Apple documentation about 'application:handleWatchKitExtensionRequest:reply:' seriously...
here is the answer : (it's in the documentation)
The contents of the dictionary must be serializable to a property list file.
Which means that objects can ONLY be dictionaries, arrays, strings, numbers (integer and float), dates, binary data, or Boolean values
...I feel dumb ><