android addTextChangedListener(TextWatcher) not working for the second time -


i have 6 edit texts on screen (used enter 6 digits) if enter 1 digit on 1 edittext field focus should go onto next 1 , on. if hit space on edit text field focus should come previous edittext field

for used below code 

 edittext2.addtextchangedlistener(new textwatcher() {          public void ontextchanged(charsequence s, int start, int before, int count) {              if (edittext2.gettext().tostring().length() == 1) {                 edittext3.requestfocus();             }             else if (edittext2.gettext().tostring().length() == 0) {                 edittext1.requestfocus();             }         }          public void beforetextchanged(charsequence s, int start, int count, int after) {          }          public void aftertextchanged(editable s) {          }     });

normally , ontextchange listener works if don't hit backspace on of edit texts. if hit backspace on edittext2 , land on edittext1(some value on present) , try enter on it. cursor not going edittext2 addtextchangedlistener not working.

any appreciated.

i'm assuming you've set edittext fields maxlength of 1. this:

<edittext     android:id="@+id/edit_text_one"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:maxlength="1"     android:inputtype="number"     android:digits="0123456789"     />

when maxlength set 1, textwatcher not triggered when trying enter additional characters. 1 way solve problem when moving backwards use edittext.setselection(0, edittext.length()); see below working example:

final list<edittext> fields = new arraylist<>();  fields.add((edittext) findviewbyid(r.id.edit_text_one)); fields.add((edittext) findviewbyid(r.id.edit_text_two)); fields.add((edittext) findviewbyid(r.id.edit_text_three)); fields.add((edittext) findviewbyid(r.id.edit_text_four)); fields.add((edittext) findviewbyid(r.id.edit_text_five)); fields.add((edittext) findviewbyid(r.id.edit_text_six));  (edittext edittext : fields) {   edittext.addtextchangedlistener(new textwatcher() {     @override     public void beforetextchanged(charsequence charsequence, int start, int count, int after) {}      @override     public void ontextchanged(charsequence charsequence, int start, int count, int after) {       (int = 0; < fields.size(); i++) {         // determine 1 of fields focused         if (fields.get(i).hasfocus()) {           if (charsequence.length() == 1) {             // if focused field has character in it, move next field             if (fields.size() > + 1) {               edittext nextfield = fields.get(i + 1);               nextfield.requestfocus();             }           } else if (charsequence.length() == 0) {             // if focused field deleted, move previous field             if (i - 1 >= 0) {               edittext prevfield = fields.get(i - 1);               prevfield.requestfocus();               // select text replaced when pressing button               prevfield.setselection(0, prevfield.gettext().length());             }           }           break;         }       }     }      @override public void aftertextchanged(editable editable) {}   }); }

Comments

Post a Comment

Popular posts from this blog

resizing Telegram inline keyboard -

telegram's inline keyboard great feature lots of different use cases. inline buttons added list of items this: inline_keyboard = [[inlinekeyboardbutton(text="button", callback_data="button"), inlinekeyboardbutton(text="reset",callback_data="reset")]] inline_keyboard_markup = inlinekeyboardmarkup(inline_keyboard) update.message.reply_text("hi", reply_markup=inline_keyboard_markup) the above code adds 2 buttons each half width of chat screen. i know the normal keyboard button there resize_keyboard parameter somehow can used. my question is there way resize inline buttons ? example make full width or quarter width. unfortunately, can't now. :( you can suggest @botsupport , might add feature next version.
Read more

command line - How can a Python program background itself? -

consider following python command-line program. doesn't work because incomplete, think illustrates problem: #!/usr/bin/python3 import multiprocessing pool = multiprocessing.pool() task in expensive_iterator_with_user_interaction(): pool.call_async(expensive_computation, (task,)) pool.close() print("dear user, may press ctrl-z , bg script.") pool.join() thus, problem scripts needs user input while it's launching expensive parallel processes. there moment when user interaction not needed anymore. then, ask user background process shell actions. however, can achieved program itself? (side note: core of problem entanglement of user input firing “expensive computations”. therefore, cannot separate both in 2 scripts, , letting 1 spawning other daemon.) the command screen may you. use screen -l create new session , run application. after inputting data, can press " ctrl-a " , press " d " on keyboard detach session. now...
Read more

php - "cURL error 28: Resolving timed out" on Wordpress on Azure App Service on Linux -

Image
my wordpress installation on azure app service on linux using custom docker container has slow response times. pages take around 20-40 seconds load. i have troubleshooting plugin installed indicates problem "curl error 28: resolving timed out after n milliseconds" when making requests following urls https://api.wordpress.org/core/version-check/1.7/ http://api.wordpress.org/core/version-check/1.7/ https://api.wordpress.org/plugins/update-check/1.1/ http://api.wordpress.org/plugins/update-check/1.1/ https://api.wordpress.org/themes/update-check/1.1/ http://api.wordpress.org/themes/update-check/1.1/ curl works fine on scm-site command line. example works ok. curl -x post http://api.wordpress.org/core/version-check/1.7/ edit if ssh container , run php code, works fine. <?php $url = 'http://api.wordpress.org/core/version-check/1.7/'; $fields = array( 'version' => urlencode('4.8.1'), 'php' => urlencode(...
Read more