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Questions tagged [android-textwatcher]

For questions related with TextWatcher callback interface

A special interface, that allows watching of the Editable field contents.

Has three callback methods:

  • void afterTextChanged (Editable s)
    This method is called to notify you that, somewhere within s, the text has been changed.
  • void beforeTextChanged (CharSequence s, int start, int count, int after)
    This method is called to notify you that, within s, the count characters beginning at start are about to be replaced by new text with length after. It is an error to attempt to make changes to s from this callback.
  • void onTextChanged (CharSequence s, int start, int before, int count)
    This method is called to notify you that, within s, the count characters beginning at start have just replaced old text that had length before. It is an error to attempt to make changes to s from this callback.

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Enter double space to replace comma in multiautocompletetextview

I want to add comma when I enter double space from keyboard in multiautocompletetextview. I search lots of thing in google. But can't reach my goal. I want to replace comma for double space entering by user. So obviously, I must have to write…
dipali
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Using common generic TextWatcher for whole project

How good is using a common generic textwatcher for whole project in terms of performance and optimization?In my project I am using many editext and each edittext has listener to be implemented. I created a generic text watcher like this.Since in…
Android Developer
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TextWatcher filter the list but donot update position of elements

I am developing an android app where i use TextWatcher to filter the list. List gets filter when i type a word in edit text but when i select any item, function select the item from unfiltered list position. you can see in picture. In first image…
Moiz Ahmad
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Why TextWatcher is not working in custom Edittext in android?

I am working on custom edittext but i am little stuck in one thing, i found TextWatcher is not working in custom edittext. public class InputValidation extends EditText { public InputValidation(Context context) { super(context); } public…
deeptimancode
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Android: Restrict editText entry after certain length

Hi I am using a text watcher on edit text I want to restrict the number after certain length suppose i want restrict length for 3 It should not allow 1234 but it should allow 123.(except dot(.) it should not allow any other character) How can i do…
hari86
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Android : Text watcher onTextChanged and afterTextChanged events firing multiple times.

I am using text watcher on an edit text and that edit text is inside the list view. I have to call an method while edit text length == 3. But the text watcher events are executing more then one time. Here is my code : …
Harry
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EditText's onTextChanged being called with empty value on row recycle

I have a RecyclerView with an EditText in each row. Each EditText has a TextWatcher attached to it and an object in an array to store information about the row and the value of the EditText. The problem I'm facing is that when the row goes…
JamEngulfer
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Live text change (Edittext)Android

On Edittext when user type something i am adding "#" at last of line except for first line, also i add digits="1234567890#" to allow number only. Here is code tt = new TextWatcher() { public void afterTextChanged(Editable s){ } …
Sudhir
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Applying Textwathcer inside Recyclerview android

I have created one recycler view adapter which contains one Ediitext amount field, I have applied textwatcher on that edittext to save value in currenct object and but I want to change value of amount field based on some conditions ,For example if…
bindal
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Write Multiple Phone Number comma separated in US format

I want to write the Phone number in US format with comma separated in edit text can anyone help me out in this case I need to like phone number XXX-XXX-XXXX,XXX-XXX-XXXX and so on there can be multiple numbers.
Saurabh sharma
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TextWatcher questions

I seem to be having some issues with textwatcher, Being new to java/android development I have a couple questions. In a nutshell, I have 3 fields, 2 editable and 1 view able. The idea is to change either two fields and have the third subtract…
Riva
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How to fix Text Watcher issue?

Yes I have been thru several questions on this topic. It's about the setText on a textWatcher field. I am quite new to all this and maybe that's why Haven't been able to apply a good fix. I am not much of a explaining type so... Here is my…
DLB123
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How create a Custom Listview with more than 2 items

i am trying to create a list view with more than 2 items i know is not difficult but I have a while trying and nothing ... Example I want to show the code, name and price of a product. I used array adapter with 1 item and two item but I need 3...…
Smithnoff
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Enable TextWatcher when EditText is disabled

in my app I have to disabled EditText and changing text in EditText programatically, problem is I want EditText to listen for TextWatcher which I added on EditText. But EditText is not listening watcher. So can anyone please help to enable EditText…
Neha Shukla
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TextWatcher return wrong position - android

I have a problem with my TextWatcher. whenever I search for an item, I get return "0" in a ArrayAdapter. but if I do not use the filter and just click on any item on the list, I get the correct position. I need to get the correct position after…
F4bioo
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