ios - Any way to know the custom keyboard frame in viewDidLoad or viewWillAppear? -


i'm developing custom keyboard extension , noticed when call self.inputview.frame.size.width in either viewdidload or viewwillappear, returns 0 or incorrect number. in viewdidappear correct. problem because need update size of elements in keyboard based on available width , height. right handling detecting frame size in viewwilllayoutsubviews, called several times before correct. works, user can see elements changing size in keyboard - frame not correct until after has been presented user. problem because need update scroll position once elements correct size, i'm forced delay until viewdidappear. isn't great user experience things jumping around after it's been presented.

is there way know height , width of keyboard earlier in life cycle can set size of elements before become visible user?

i using xib create keyboard interface utilizes auto layout. how add keyboard:

let keyboardnib = uinib(nibname: "keyboardview", bundle: nil) let keyboardinterface = keyboardnib.instantiatewithowner(self, options: nil)[0] as! uiview  keyboardinterface.settranslatesautoresizingmaskintoconstraints(false)  self.inputview.addsubview(keyboardinterface)  let verticalconstraints: [nslayoutconstraint] = nslayoutconstraint.constraintswithvisualformat("v:|-0-[keyboardinterface]-0-|", options: nslayoutformatoptions(0), metrics: nil, views: ["keyboardinterface": keyboardinterface, "view": view]) as! [nslayoutconstraint] let horizontalconstraints: [nslayoutconstraint] = nslayoutconstraint.constraintswithvisualformat("h:|-0-[keyboardinterface]-0-|", options: nslayoutformatoptions(0), metrics: nil, views: ["keyboardinterface": keyboardinterface]) as! [nslayoutconstraint]  self.inputview.addconstraints(verticalconstraints) self.inputview.addconstraints(horizontalconstraints)


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