ios - Passing UIImage from iPhone to Apple Watch results in nil response in watch -

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my watch needs request image containing app. in watch's controller, have:

- (void)getorglogo {     nsstring *host = mfainfo[@"host"];     nsdictionary *getorglogorequest = @{@"request":@"getorglogo", @"host":host};     [myinterfacecontroller openparentapplication:getorglogorequest reply:^(nsdictionary *replyinfo, nserror *error) {         if (error) {             ...         } else if (replyinfo == nil) {             // getting block!!!         } else {             uiimage *orglogo = replyinfo[@"orglogo"];             if (orglogo != nil) {                 [self.orglogoimageview setimage:orglogo];             }         }     }]; }

in main app, send request server image, pass image watch:

- (void)application:(uiapplication *)application handlewatchkitextensionrequest:(nsdictionary *)userinfo reply:(void (^)(nsdictionary *))reply {     ...     if ([[userinfo objectforkey:@"request"] isequaltostring:@"getorglogo"]) {         nsstring *host = userinfo[@"host"];         [self handlewatchkitgetorglogorequest:reply withhost:host];     }     ... }  - (void)handlewatchkitgetorglogorequest:(void (^)(nsdictionary *))reply withhost:(nsstring *)host{     nsmutabledictionary *response = [[nsmutabledictionary alloc] init];      // server request image     [oktaapiclient getlogourlfromhost:host withsuccess:^(uiimage *image) {         // i'm getting in here - indicating got image         response[@"orglogo"] = image;         // double checked value of response here - it's not nil!         reply(response);     } withfailure:^(uiimage *image) {         ...         reply(response);     }]; }

as commented in code above, checked value of response right before pass watch , confirmed contain value (a uiimage), in callback of watch code, reply becomes nil. not know happens in process. thoughts?

another way enable app groups , save images shared folder. if saving multiple images.

start enabling app groups under capabilities tab both iphone , apple watch target.

xcode capabilities tab

then use code on iphone save image.

[oktaapiclient getlogourlfromhost:host withsuccess:^(uiimage *image) {   nsurl *groupurl = [[nsfilemanager defaultmanager]     containerurlforsecurityapplicationgroupidentifier:@"group.az.simplesudoku"];    nsstring *sharedfilepath = [groupurl.path      stringbyappendingformat:@"/%@", @"logo.png"];    [uiimagepngrepresentation(image) writetofile:sharedfilepath atomically:yes];    reply(response); } withfailure:^(uiimage *image) {         ...     reply(response); }];

and load image on watch.

nsurl *groupurl = [[nsfilemanager defaultmanager]   containerurlforsecurityapplicationgroupidentifier:@"group.az.simplesudoku"];  nsstring *sharedfilepath = [groupurl.path    stringbyappendingformat:@"/%@", @"logo.png"];  nsdata *imgdata = [nsdata datawithcontentsoffile:imagefilepath];  [myinterfaceimage setimagedata:imgdata];

as long app groups set correctly, works well. use pass sudoku board images , forth in app.


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