textwatcher

问题 I have an EditText to filter the items in the ListView below it, which may contain more than 1000 items usually. The TextWatcher is: txt_itemSearch.addTextChangedListener(new TextWatcher() { public void onTextChanged(CharSequence s, int start, int before, int count) { fillItemList(); } public void afterTextChanged(Editable s) { } public void beforeTextChanged(CharSequence s, int start, int count, int after) { } }); The issue here is that with each letter typed by the user, the list is getting

问题 I want to filter the input of an EditText , only digits and letters are allowed, first I use TextWatcher to deal with the last input character, but when you move the cursor or you past some content to the EditText , this method failed, now I want to know is there a way to filter the illegal input and give the user a feedback. 回答1: Add InputFilter to your EditText & provide a Toast for user . This code snippet will help you. InputFilter filter = new InputFilter() { public CharSequence filter

问题 I would need a way to detect if the EditText has been changed by the user typing something or by the app changing the text programmatically. Any standard way of doing this? I guess I could always do something hackish like unsetting the TextWatcher before setText() and setting it back again afterwards, but there's got to be a better way of doing this... right? I tried checking if the EditText is focused in the TextWatcher, but that was of little help since the EditTexts gets focused "semi

问题 Hi in my app there is a list view and a search section.what i need to do is when i search a word in the search section it should sort out the corresponding list view according to the word that i search.i got a code for sorting the name , but my real problem is if i need to search a word for example i need to search Ramz super which is a single name in my current code i need to search like from R then A etc in the correct order to sort out the name .But what i need is that if i start search

问题 Hi in my app there is a list view and a search section.what i need to do is when i search a word in the search section it should sort out the corresponding list view according to the word that i search.i got a code for sorting the name , but my real problem is if i need to search a word for example i need to search Ramz super which is a single name in my current code i need to search like from R then A etc in the correct order to sort out the name .But what i need is that if i start search

问题 I have a handler that is a TextWatcher and i dont know how to get the View that has changed text. Here is my handler: TextWatcher handler = new TextWatcher() { @Override public void onTextChanged(CharSequence s, int start, int before, int count) { // TODO Auto-generated method stub } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { oldText = s.toString(); } @Override public void afterTextChanged(Editable s) { //v.setText("afterTextChanged"); } }; Note

问题 I have a handler that is a TextWatcher and i dont know how to get the View that has changed text. Here is my handler: TextWatcher handler = new TextWatcher() { @Override public void onTextChanged(CharSequence s, int start, int before, int count) { // TODO Auto-generated method stub } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { oldText = s.toString(); } @Override public void afterTextChanged(Editable s) { //v.setText("afterTextChanged"); } }; Note

问题 I have a ListView where each row has an EditText control. I want to add a TextChangedListener to each row; one that contains extra data which says which row the EditText was in. The problem is that as getView gets called, multiple TextWatchers are added; because the convertView already having a TextWatcher (and one that points to a different row). MyTextWatcher watcher = new MyTextWatcher(currentQuestion); EditText text = (EditText)convertView.findViewById(R.id.responseText); text

问题 I have a ListView where each row has an EditText control. I want to add a TextChangedListener to each row; one that contains extra data which says which row the EditText was in. The problem is that as getView gets called, multiple TextWatchers are added; because the convertView already having a TextWatcher (and one that points to a different row). MyTextWatcher watcher = new MyTextWatcher(currentQuestion); EditText text = (EditText)convertView.findViewById(R.id.responseText); text

问题 I have a ListView where each row has an EditText control. I want to add a TextChangedListener to each row; one that contains extra data which says which row the EditText was in. The problem is that as getView gets called, multiple TextWatchers are added; because the convertView already having a TextWatcher (and one that points to a different row). MyTextWatcher watcher = new MyTextWatcher(currentQuestion); EditText text = (EditText)convertView.findViewById(R.id.responseText); text