I had the same kind of problem, when I pressed backspace with cursor at the end of a continuous text, afterTextChange was called 3 times: – The first time with the correct s value – The second time with a clear value – The third time with the correct value again After having search a … Read more
I wrote this TextWatcher for a project, hopefully it will be helpful to someone. Note that it does not validate the date entered by the user, and you should handle that when the focus changes, since the user may not have finished entering the date. Update 25/06 Made it a wiki to see if we … Read more
Try like this. EditText et = (EditText)findViewById(R.id.editText); Log.e(“TextWatcherTest”, “Set text xyz”); et.setText(“xyz”); et.addTextChangedListener(new TextWatcher() { @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void afterTextChanged(Editable s) { Log.e(“TextWatcherTest”, “afterTextChanged:\t” +s.toString()); } });
There is no way to do this using current EditText interface directly. I see two possible solutions: Redesign your application so you always know what TextWatcher are added to particular EditText instance. Extend EditText and add possibility to clear all watchers. Here is an example of second approach – ExtendedEditText: public class ExtendedEditText extends EditText … Read more
First, you can see if the user finished editing the text if the EditText loses focus or if the user presses the done button (this depends on your implementation and on what fits the best for you). Second, you can’t get an EditText instance within the TextWatcher only if you have declared the EditText as … Read more
Seems there isn’t much you can do by using the API: android paste event Source reading to the rescue! I dug into the Android Source of the TextView (EditText is a TextView with some different configuration) and found out that the menu used to offer the cut/copy/paste options is just a modified ContextMenu (source). As … Read more
I just encountered this problem. I solved it by creating an inner class implementation of TextWatcher that takes a View as an argument. Then, in the method implementation, just switch on the view to see which one the Editable is coming from Declaration: private class GenericTextWatcher implements TextWatcher{ private View view; private GenericTextWatcher(View view) { … Read more
The parameters for beforeTextChanged and onTextChanged are a little hard to understand at first. It may be helpful to see them being used in an example. Watch the following demonstration a few times. Pay attention to the counts. The red highlight is the old text that is about to be replaced by the green text. … Read more
Suggested solution in @Sebastian Roth’s answer is not one instance of TextWatcher for some EditTexts. It is one class and n instances of that class for n EditTexts. Each EditText has its own Spannable. TextWatcher‘s events has this Spannable as s parameter. I check their hashCode (unique Id of each object). myEditText1.getText() returns that Spannable. … Read more
For use of the TextWatcher… et1.addTextChangedListener(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) { // TODO Auto-generated method stub } @Override public void afterTextChanged(Editable s) { // TODO Auto-generated method stub … Read more