ios - segueForUnwindingToViewController throws excpetion for incorrect parent view controller -


i'm trying run custom segue unwind transition. there overall navigation controller, , 2 subviews (viewa , viewb). trying go between these following code (triggered via button , storyboard reverse segue):

// xxxnavigationcontroller.h  - (uistoryboardsegue *)segueforunwindingtoviewcontroller:(uiviewcontroller *) toviewcontroller fromviewcontroller:(uiviewcontroller *) fromviewcontroller identifier:(nsstring *)identifier {     uiviewcontroller *controller = self.topviewcontroller;     return [controller segueforunwindingtoviewcontroller:toviewcontroller                                       fromviewcontroller:fromviewcontroller                                               identifier:identifier]; }  // xxxviewbcontroller.h (in reverse segue, going viewb -> viewa)  - (uistoryboardsegue *) segueforunwindingtoviewcontroller:(uiviewcontroller *)toviewcontroller  fromviewcontroller:(uiviewcontroller *)fromviewcontroller  identifier:(nsstring *)identifier {     xxxreversezoomsegue *segue = [[xxxreversezoomsegue alloc]                                   initwithidentifier:identifier                                               source:fromviewcontroller                                          destination:toviewcontroller];     return segue; }

this results in following exception:

*** terminating app due uncaught exception  'uiviewcontrollerhierarchyinconsistency', reason:  'child view controller:<xxxviewacontroller: 0x14c5119e0>   should have parent view controller:<xxxviewbcontroller: 0x15000b400>  actual parent is:<xxxnavigationcontroller: 0x14c5116a0>'

how can set correctly can make reverse segue work?


Comments

Post a Comment

Popular posts from this blog

javascript - RequestAnimationFrame not working when exiting fullscreen switching space on Safari -

request animation frame stops working when exiting fullscreen clicking on original space's safari window. fine if fullscreen mode canceled escape key or calling cancelfullscreen(). steps reproduce: open https://dl.dropboxusercontent.com/u/769042/prezi/safari-fullscreen.html click "draw raf", kittie appears click "fullscreen", go fullscreen click "draw raf", kittie appears go space original safari was, showing "click exit fullscreen mode", click anywhere, out fullscreen click "draw raf", nothing happens what handling click calling: window.requestanimationframe(draw); which draws on canvas context: function draw() { ctx.drawimage(img, math.random()*500|0, math.random()*400|0, 100, 100); } i checked .hidden , .visibilitystate, updated correctly. tested on osx 10.9.3, safari 7.0.4 (9537.76.4). has workaround/solution other switching old settimeout? this sounds webkit bug 88940 : using reque
Read more

Python ctypes access violation with const pointer arguments -

i have api i'm trying wrap in python (2.7.6 on win7) code using ctypes. here's api: client_dllfunc bool clientapi search_exporttoclipcopy(clienthsearch handle, int channel, lpctstr filename, const time_t& from, const time_t& to, const bool* cameras, int length, bool usepassword, lpctstr password, bool includetextin = false, bool excludeplayer = false); the issue i'm having cameras argument; , i've had issue other const pointer arguments well. here's how i'm wrapping api: def search_exporttoclipcopy(self, hsearch, csearch, filename, tfrom, tto, cameras, length, usepassword, password, includetextin=true, excludeplayer=false): exporttoclipcopy = self.sdkdll.search_exporttoclipcopy exporttoclipcopy.argtypes = [c_int, c_int, c_wchar_p, c_long, c_long, pointer(c_bool), c_int, c_bool, c_wchar_p, c_bool, c_bool] exporttoclipcopy.restype = c_bool exporttoclipcopy(hsearch, csearch, filename, tfrom, tto, cameras, length, usepassword, pass
Read more