ios - UIViewControllerContext initalFrameForViewController & finalFrameForViewController show 0 for all values -


I am implementing my own custom UIViewController transition and when I click on the debugger's frame To see the controller output, I get the {{0, 0}, {0}} for both the initial and the final frames. I thought that this method on reference is considered to show the initial frame before the final fracture and infection before the final transition.

Is this going to work? 

  - (minus) Prarnbintraktiv Tronnsisn: (ID & lt; UIViewControllerContextTransitioning & gt;) transition Contaks {UIViewController * fromVC = [Transition Content View-View-Controller Foreki: UITransitionContextFromViewControllerKey]; UIViewController * toVC = [Transition Content Visual View Controller Foreiki: UITransitionContextToViewControllerKey]; CGRect initialToFrame = [transitionContext initialFrameForViewController: toVC]; CGRTT Last Topframe = [Transition Consult FinalForForvient Controller: Towisi]; Anselog (@ "initial Tofram:% @, final Tofram:% @", Ansstiingfromsigret (initial Tofram), Ansstiringfromsijiakt (final Tofrem)); }   
 Showing debugger:  initialToFrame: {{0,}, {0}}, final tofrem: {{0,}, {0}}   
 Additionally, the debugger is also showing the following warning. Does it contribute to error anyway?  
  It is frustrating to present view controllers on different view controllers    
 
 
 You should first know that there are about two types of custom changes: Full and non-fullscreen and those who are seeking the last frame for  toVC.vew  are a non- There is absolutely no sense in the fullscreen transition.  
 Set in cases where you  modalPresentationStyle  are not set or it is clearly  UIModalPresentationFullScreen  (this is the default value) know UIKit That  toVC.view  will cover the entire screen, so the  -finalFrameForViewController: toVC  will return the correct frame: the main screen frame.  using 
 modalPresentationStyle = UIModalPresentationCustom  you can specify that the transition should be non-fullscreen, that is:  toVC.view  will be partially covered by < Code> FromVC.view  (and the chicken CE  fromCV.view  will be placed in the hierarchy);  Where   toVC.view  Your decision will be  fromVC.view , this is the reason that  -finalFrameForViewController:  returns  CGRectZero .  
 What is that  CGRectZero  is telling you: "Hey buddy  
 For more information see this presentation:  
 Hope That it would be helpful.

Comments

Post a Comment

Popular posts from this blog

c - Performance of System() -

After the function in C, for the system (), it affects the hardware counters, so how do you order that The example displayed for the example you are trying to view lets the IM use the display API (PAPI) and the program is a precompiled matrix multiplication application. PAPI_start_counters (); System ("./matmul"); PAPI_read_counters (); // Print the values ​​PAPI_stop_counters (); I'm clearly missing a bit, but I'm trying to figure out what it is possible to say, counter receiving a program im running Is through use. With my tests I will get wild numbers like below, they are clearly wrong, just want to find out why total bicycle =========== 140733358872510 instructions complete =========== 4203968 Floating Point Instructions =========== Floating Point Operations =========== 4,196,867 Weight ======= ==== 140733358872804 store ======= ==== 4204037 branches taken =========== 15774436 System () Normally it is a very slow function, on Linux, it is ...
Read more

python - how we can use ajax() in views.py in django? -

I have a little code here. Could you please tell me what this code really does? please. Here in the AJAX call: $ .ajax ({url: "{% url} upload_document '%}", type: "POST", data : {Csrfmiddletoken: document.getElementsByName ('csrfmiddletoken') [0] Price, Title: document.getElementById ('title'). Value, // document: document: document.getElementById ('document'),}, datatype: "Jason", success: function (feedback) {if (feedback == "true") {// success} other {// attachment errors}}}); How AJAX works in the Django and how we can see the AJAX request. Here is the idea of ​​my thoughts def upload_document (requested): Print request. POTT print request FILES if request.is_ajax (): If request.method == 'POST': form = UploadForm (request.POST, request.FILES, user = request.user) if form.is_valid (): Form.save () return HTTPPCS (SimpleJason Dumps ('True'), Mime Type = 'App / Jason') Other:...
Read more

javascript - Is there any way to add a new parameter to a function programmatically? -

Since I can set the number of expectations by calling a function its function.length Property, do I have to programmatically create the right number of parameters to include in that function at runtime? Example: var xyz = function (a, b) {}; Var BCD = function (A, B, C, D, E, F) {}; // vararg example var doc = document, func_length = xyz.length; Doc.xyz = (function () {returns function (A, B, C, D, E) works for one / but other is not}}}. Call (doctor); / * With `only two parameters ', like' Return function (A, B)`, if this function is used for `xyz` (although in this case 5 works fine), and return function ( If the function is used for 'BCD' (which does not work with only five parameters) with A, B, C, D, E, F) `6 / / Xyz.apply (blank, arguments) Think about ... but which logic ..? : // Returning function (A, B, C, D, E) does not support work with more than five parameters, which will be mostly class - hence my question / I also know very well That I use an obj...
Read more