textwatcher

Android-Change Edittext after each change

由 末鹿安然 提交于 2019-12-10 22:09:49
问题 how can i add Char such as this dash '-' after each change in edtitext for example if the user enter A then the text in edittext will be A- then the user will complete and enter Char B then the edittext will be A-B How to implement this ? thanks name = (EditText)findViewById(R.id.editText1); name.addTextChangedListener(new TextWatcher(){ public void afterTextChanged(Editable s) { name.setText("-"); } public void beforeTextChanged(CharSequence s, int start, int count, int after){} public void

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

How to animate a FadeOut and FadeIn while textView changed text

由 跟風遠走 提交于 2019-12-10 10:59:55
问题 i try to animate a TextView on a changeText But always see only one direction of the animation, i only see the fadeout What i try is: beforChange = fadeOut and onChange or after fadein here is my code in the onCreate method of my activity: final Animation out = new AlphaAnimation(1.0f, 0.0f); out.setDuration(1000); final Animation in = new AlphaAnimation(0.0f, 1.0f); in.setDuration(1000); bidFirst.setAnimation(out); bidMiddle.setAnimation(out); bidLast.setAnimation(out); TextWatcher

ArrayAdapter need to be clear even i am creating a new one

由 北城以北 提交于 2019-12-08 12:48:15
问题 Hello I'm having problems understanding how the ArrayAdapter works. My code is working but I dont know how.(http://amy-mac.com/images/2013/code_meme.jpg) I have my activity, inside it i have 2 private classes.: public class MainActivity extends Activity { ... private void SomePrivateMethod(){ autoCompleteTextView.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_spinner_dropdown_item, new ArrayList<String>(Arrays.asList("")))); autoCompleteTextView.addTextChangedListener(new

measure length of edittext string dynamically in android

由 佐手、 提交于 2019-12-08 09:07:13
问题 How can i measure length of string entered in the edittext while typing.Because i want to show a warning when the entered text length cross 100 character. Thanks in advance. 回答1: You can use TextWatcher to your EditText to do that in Android. Something like this EditText test = new EditText(this); test.addTextChangedListener(new TextWatcher() { public void beforeTextChanged(CharSequence s, int start, int count, int after) { } public void onTextChanged(CharSequence s, int start, int before,

Adding a Dash in the editText automatically in Android

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-12-06 12:02:31
问题 Have a look at my codes: txt_HomeNo.addTextChangedListener(new TextWatcher() { @Override public void onTextChanged(CharSequence s, int start, int before, int count) { boolean flag = true; String eachBlock[] = txt_HomeNo.getText().toString().split("-"); for (int i = 0; i < eachBlock.length; i++) { if (eachBlock[i].length() > 3) { flag = false; } } if (flag) { txt_HomeNo.setOnKeyListener(new OnKeyListener() { @Override public boolean onKey(View v, int keyCode, KeyEvent event) { if (keyCode ==

Asus Zenfone (Android) TextView\\TextWatcher keyboard input bug

由 给你一囗甜甜゛ 提交于 2019-12-06 12:02:19
Update: actually, this is not a problem with Asus Phones, it's a problem with Asus ZenUI's keyboard. You can install a keyboard you like to walk around the problem. I have tested Zenfone 2 with Google Keyboard installed. Everything in my TextWatcher works fine. But it is not a bug fix or problem solution. I have two InputFilter s and one TextWatcher attached to my EditText . InputFilters : standard InputFilter.AllCaps() filter and custom 'alphabet characetrs only'. They works as magic. TextWatcher makes some text transofrmations (transliterates symbols from Russian into English). TextWatcher

How to animate a FadeOut and FadeIn while textView changed text

由 ￡可爱￡侵袭症＋ 提交于 2019-12-06 07:35:52
i try to animate a TextView on a changeText But always see only one direction of the animation, i only see the fadeout What i try is: beforChange = fadeOut and onChange or after fadein here is my code in the onCreate method of my activity: final Animation out = new AlphaAnimation(1.0f, 0.0f); out.setDuration(1000); final Animation in = new AlphaAnimation(0.0f, 1.0f); in.setDuration(1000); bidFirst.setAnimation(out); bidMiddle.setAnimation(out); bidLast.setAnimation(out); TextWatcher bidWatcher = new TextWatcher() { public void onTextChanged(CharSequence s, int start, int before, int count) {

Android use text watcher to prevent typing of special characters [duplicate]

由 廉价感情. 提交于 2019-12-06 03:17:23
问题 This question already has answers here : How do I use InputFilter to limit characters in an EditText in Android? (17 answers) Closed 4 years ago . I want to make an EditText box and use TextWatcher to prevent typing of special characters. 回答1: This is for only character and space validation... InputFilter filter = new InputFilter() { @Override public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) { for (int i = start; i < end; i++) if (

Using a TextWatcher on a EditText to calculate the total and sum total in real time in android?

由 一世执手 提交于 2019-12-06 00:50:43
Here i want to take the default value coming from my database and setText to that value and calculate the net rate and total or else if the user edits the rate or making charges i would like to calculate the net rate and total based on that value in real time. This is my code for calculating and displaying the values. private void showItem(String json) { String itembarcode = ""; String itemdesc = ""; String weight = ""; String rate = ""; String making = ""; double wt = 0.0d; double rt = 0.0d; double mk = 0.0d; try { JSONObject jsonObject = new JSONObject(json); JSONArray result = jsonObject
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