ios - How to get constraints is ios8 before layoutSubviews? -


i have view subclass of uiview,when add constraints in xib,and should array constraints, tried, different between ios 7 , ios 8. work ios 7,and ios 8 invalid.

-(id)initwithcoder:(nscoder *)adecoder{     self = [super initwithcoder:adecoder];    if (self) {      nslog(@"constraints = %@",self.constraints);     }     return self; }

is autolayout turned off xib?

if take 1 of projects, , run on ios8, autolayout turned off, get:

2015-04-29 00:30:48.796 simpletest[37423:4105842] constraints = ( )

if turn autolayout on, list of constraints:

2015-04-29 00:32:03.755 simpletest[37448:4107364] constraints = (     "<nslayoutconstraint:0x7a694c90 v:[_uilayoutguide:0x7a87f280]-(0)-[uibutton:0x7a6834a0'another view']>",     "<nslayoutconstraint:0x7a691b90 uibutton:0x7a6834a0'another view'.leading == uiview:0x7a87ef50.leadingmargin>",     "<nslayoutconstraint:0x7a6871c0 v:[uibutton:0x7a6834a0'another view']-(100)-[uiview:0x7a87f0f0]>",     "<nslayoutconstraint:0x7a696670 uiview:0x7a87f0f0.leading == uiview:0x7a87ef50.leadingmargin + 30>",     "<nslayoutconstraint:0x7a691bf0 uiview:0x7a87ef50.trailingmargin == uiview:0x7a87f0f0.trailing + 30>",     "<nslayoutconstraint:0x7a686620 v:[uiview:0x7a87f0f0]-(100)-[_uilayoutguide:0x7a87f950]>",     "<_uilayoutsupportconstraint:0x7a68d8f0 v:[_uilayoutguide:0x7a87f280(0)]>", etc.

the checkbox turn autolayout on or off near bottom of image: enter image description here

rereading post, seems adding constraints can't if had autolayout turned off. maybe not issue. however, can see output, ios8 doesn't return nil self.constraints when there constraints.


Comments

Post a Comment

Popular posts from this blog

php - failed to open stream: HTTP request failed! HTTP/1.0 400 Bad Request -

this code i'm using find latitude , longitude of place: function coords($address){ echo $url="http://maps.googleapis.com/maps/api/geocode/json?address=".$address; $json = file_get_contents(urlencode($url)); $data = json_decode($json, true); print_r($data['results'][0]['geometry']['location']['lat']); print_r($data['results'][0]['geometry']['location']['lng']); } however returns warning: failed open stream: http request failed! http/1.0 400 bad request if use above code in simple procedure works fine not in function. note: have tried curl_init()... method produced same result? instead of encoding whole url encode address part. following code work fine $add='jamshoro phase 2'; $url="http://maps.googleapis.com/maps/api/geocode/json?address=".urlencode($add); $json = file_get_contents($url); $data = json_decode($json, true); print_r($data['r
Read more

java - How to filter a backspace keyboard input -

i have code gives message when key number pressed: txtvalueofclause.addeventfilter(keyevent.key_typed, new eventhandler<keyevent>() { @override public void handle(keyevent t) { char ar[] = t.getcharacter().tochararray(); char ch = ar[t.getcharacter().tochararray().length - 1]; if (!(ch >= '0' && ch <= '9')) { system.out.println("the char entered not number"); t.consume(); } } }); now if press on wrong button , press backspace remove it, error message. how can add backspace input if statement? i have found answer: txtvalueofclause.addeventfilter(keyevent.key_typed, new eventhandler<keyevent>() { @override public void handle(keyevent t) { char ar[] = t.getcharacter().tochararray(); char ch = ar[t.getcharacter().tochar
Read more

java - Show Soft Keyboard when EditText Appears -

i have code in android app, alert dialog , keyboard, , when dialog shown want keyboard appear. not , not sure why? here code: final alertdialog.builder alert = new alertdialog.builder(this); alert.settitle("title"); alert.setmessage("message"); final edittext input = new edittext(this); input.setinputtype(inputtype.type_class_number); alert.setview(input); input.setonfocuschangelistener(new view.onfocuschangelistener() { @override public void onfocuschange(view v, boolean hasfocus) { if (hasfocus) { log.i(tag, "in focus"); inputmethodmanager inputmethodmanager = (inputmethodmanager) getsystemservice(context.input_method_service); inputmethodmanager.showsoftinput(input, inputmethodmanager.show_implicit); } } }); but keyboard not appear though edit text in focus, , tell appear why, doesn't come up? thanks in advance.
Read more