textview - Android text over-enlarging text size -


i'm new android , i'm working on "about" page giving me weird behavior. has text when clicked expands , collapses when clicked again. collapsed text of larger size expanded text. when click expand, text waaay larger larger expanded text , when go collapse again collapsed text keeps huge text size too. (it changes actual text content fine)

the xml textview

<textview             ...             android:textsize="@dimen/about_filler"             android:id="@+id/stuff"             android:text="@string/about_filler"             android:clickable="true"             android:onclick="collapsetoggle"             ... />

the method clicking calls

public void collapsetoggle(view view){     textview text = (textview) view;     if( ! text.gettext().equals(getstring(r.string.about_filler))){ //if not collapsed         text.settext(getstring(r.string.about_filler));         text.settextsize(getresources().getdimension(r.dimen.about_filler));     }      else if(text.getid() == r.id.stuff){         text.settext(getstring(r.string.about_contents_stuff));             text.settextsize(getresources().getdimension(r.dimen.about_contents));     }

and dimen folder

... <dimen name="about_contents">20sp</dimen> <dimen name="about_filler">40sp</dimen>

i know there million better ways implement kind of thing why happening killing me.

by default text.settextsize(float size) assumes you're passing size in sp units, it's converting sp px internally.

on other hand getresources().getdimension() returning unit in px, internally doing conversion whatever value set.

so what's happening in case

  • you've set 20sp in dimens.xml
  • getdimension() returning 100px (depending on screen)
  • settextsize() assumes you've set 100sp , resizes huuge.

to fix use other option settextsize() accepts units: text.settextsize(typedvalue.complex_unit_px, getresources().getdimension(r.dimen.about_contents));


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