How to use EditText onTextChanged event when I press the number

Question

I have an EditText with  text   0 00   When I press the number 3  it should be like 0 03 and the second time when I press the number 5  the text should be 0 35  And 35 0  35 09 like this  The EditText initially has the value of 0 00   These are all done with the same EditText   How do I achieve this   I have tried using addTextChangedListener   with TextWatcher

User · Answer

You can also try this   EditText searchTo    EditText findViewById R id medittext   searchTo addTextChangedListener new TextWatcher          Override     public void afterTextChanged Editable s               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 onTextChanged CharSequence s  int start  int before  int count            doSomething

User · Answer

In Kotlin Android EditText listener is set using     val searchTo   EditText   findViewById R id searchTo     searchTo addTextChangedListener object   TextWatcher       override fun afterTextChanged s  Editable                you can call or do what you want with your EditText here             yourEditText               override fun beforeTextChanged s  CharSequence  start  Int  count  Int  after  Int         override fun onTextChanged s  CharSequence  start  Int  before  Int  count  Int

User · Answer

To change the text    multipleLine addTextChangedListener new TextWatcher              Override         public void beforeTextChanged CharSequence s  int start  int count  int after                         Override         public void onTextChanged CharSequence s  int start  int before  int count                MainActivity myArray set pickId String valueOf s                MainActivity myAdapt notifyDataSetChanged                        Override         public void afterTextChanged Editable s

User · Answer

You have selected correct approach  You have to extend the class with TextWatcher and override afterTextChanged   beforeTextChanged    onTextChanged     You have to write your desired logic in afterTextChanged   method to achieve functionality needed by you

User · Answer

put the logic in      afterTextChanged Editable s        string str   s toString          use the string str     documentation on TextWatcher

User · Answer

Here  I wrote something similar to what u need       inputBoxNumberEt setText                inputBoxNumberEt setSelection inputBoxNumberEt getText   length         inputBoxNumberEt addTextChangedListener new TextWatcher              boolean ignoreChange   false            Override         public void afterTextChanged Editable s                        Override         public void beforeTextChanged CharSequence s  int start                                        int count  int after                        Override         public void onTextChanged CharSequence s  int start                                    int before  int count                if   ignoreChange                    String string   s toString                    string   string replace                           string   string replace                           if  string length      0                      string                             else if  string length      1                      string           string                  else if  string length      2                      string         string                  else if  string length    gt  2                      string   string substring 0  string length   - 2          string substring string length   - 2  string length                     ignoreChange   true                  inputBoxNumberEt setText string                   inputBoxNumberEt setSelection inputBoxNumberEt getText   length                     ignoreChange   false

[android] How to use EditText onTextChanged event when I press the number?

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