android-textwatcher

Auto remove leading space of any text of EditText?

由 前提是你 提交于 2020-01-30 02:48:09
问题 Description I am developing one app in which I have registration page. Inside registration page, I am doing registration by getting user's full name and mobile number. Problem While getting user's full name in edit text sometimes the user is pressing space bar before type his/her name. I need you disable space-bar key before typing any text white user start typing his name I want to enable space-bar key. So that user can enter space between his/her Middle name and Last name. What I have tried

Differences between TextWatcher 's onTextChanged, beforeTextChanged and afterTextChanged

由 拈花ヽ惹草 提交于 2020-01-08 13:20:19
问题 In my Android project, I have had to add a TextChangedListener (TextWatcher) to an edit text view. And there are three parts to it: onTextChanged() beforeTextChanged() afterTextChanged() What are the differences of these three? I have had to implement a search of a table on the key listener and for my case all these three looked the same. Also they functioned the same. When I input a part of a product name, the table redraws with only those products that contain entered text in it. But I used

Using Android TextWatcher with multiple user input values and Update thses values

由 偶尔善良 提交于 2020-01-06 03:21:07
问题 I am very new too Android. I try to develop an android application to get the total amount of user input items. Here is a sketch of my application.enter image description here User Must enter First Row Col1 and Col 2. But First Row Col3 can enter or not. In Sub 1 textview the total value of First Row should display. This value should also display in Result textview. Likewise if user inserts data to Second Row, values must enter to under Col1 and Col2. If user likes, can enter value to under

EditText in listview gets duplicated

由 瘦欲@ 提交于 2019-12-24 13:41:14
问题 I know this question is asked many times before and followed them and I am up to the mark to a great extent with only one problem left.I was able to solve the duplicating issue by adding textwatcher and using hashmap to store value but problem that is left is that the value of original edit text is also gone when I scroll back to it. By this I mean that if I type something in say first EditText and then scroll down, that value doesn't get repeated anywhere but the value of EditText in which I

converting numbers to currency format when text changes

由 ＊爱你＆永不变心＊ 提交于 2019-12-13 03:36:32
问题 I am using RxTextView.textChanges for EditText that when the user is typing change value of EditText to convert numbers to currency format like below: 1,000 But I can't see any convert numbers to currency format . I am using from: NumberFormat.getNumberInstance(Locale.US).format(productPrice); My code is like bellow: Observable<CharSequence> observableDiscountPrice = RxTextView.textChanges(discountPriceEdittext); observableDiscountPrice.map(new Function<CharSequence, Boolean>() { @Override

TextWatcher onTextChanged not working with soft keyboard auto-complete / suggested words

由 半世苍凉 提交于 2019-12-10 13:35:25
问题 I'm Implementing a TextWatcher on an EditText to find and underline a series of keywords within the text whenever a new character is entered by the user. However when a suggested / auto-complete word on the soft keyboard is selected, instead of adding the suggested word to the Edittext and then calling the onTextChanged function the half complete word is deleted. I found this rather strange as entering individual characters activates the onTextChanged function just fine. Any help would be

onTextChanged vs afterTextChanged in Android - Live examples needed

由 我与影子孤独终老i 提交于 2019-12-04 16:37:19
问题 I was reading about TextWatcher in Android programming. I could not understand the difference between afterTextChanged() and onTextChanged() . Although I referred to Differences between TextWatcher 's onTextChanged, beforeTextChanged and afterTextChanged, I am still not able to think of a situation when I would need to use onTextChanged() and not afterTextChanged() . 回答1: I found an explanation to this on Android Dev Portal http://developer.android.com/reference/android/text/TextWatcher.html

onTextChanged vs afterTextChanged in Android - Live examples needed

由 做~自己de王妃 提交于 2019-12-03 11:48:53
I was reading about TextWatcher in Android programming. I could not understand the difference between afterTextChanged() and onTextChanged() . Although I referred to Differences between TextWatcher 's onTextChanged, beforeTextChanged and afterTextChanged , I am still not able to think of a situation when I would need to use onTextChanged() and not afterTextChanged() . I found an explanation to this on Android Dev Portal http://developer.android.com/reference/android/text/TextWatcher.html **abstract void afterTextChanged(Editable s)** This method is called to notify you that, somewhere within s

How to update the same EditText using TextWatcher?

由 可紊 提交于 2019-11-28 13:46:58
In my Android application I need to implement a TextWatcher interface to implement onTextChanged . The problem I have is, I want to update the same EditText With some extra string. When I try to do this the program terminates. final EditText ET = (EditText) findViewById(R.id.editText1); ET.addTextChangedListener(new TextWatcher() { @Override public void onTextChanged(CharSequence s, int start, int before, int count) { try { ET.setText("***"+ s.toString()); ET.setSelection(s.length()); } catch(Exception e) { Log.v("State", e.getMessage()); } } @Override public void beforeTextChanged

How to update the same EditText using TextWatcher?

由 瘦欲@ 提交于 2019-11-27 08:02:58
问题 In my Android application I need to implement a TextWatcher interface to implement onTextChanged . The problem I have is, I want to update the same EditText With some extra string. When I try to do this the program terminates. final EditText ET = (EditText) findViewById(R.id.editText1); ET.addTextChangedListener(new TextWatcher() { @Override public void onTextChanged(CharSequence s, int start, int before, int count) { try { ET.setText("***"+ s.toString()); ET.setSelection(s.length()); } catch
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