title: How to overwrite value in edittext
body: <p>I have an edittext in my app, which accepts only numbers. It is set to 0 by default. But when i enters some umbers, i want to overwrite the initial 0 in the left. Now i am having some problem with edittext. For example, when i inserts a 1, i want it to how 1, not 01. my code is like,</p>
  
  <pre><code>    value = (EditText)findViewById(R.id.value);
      value.addTextChangedListener(new TextWatcher() {
          public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) 
          {   
              if(arg0.length()==0)
              {
                  value.setText("0");
                  int i = value.getText().length();
                  value.setSelection(i);
              }
          }
  
          public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                  int arg3) {
              // TODO Auto-generated method stub
              }
  
          public void afterTextChanged(Editable arg0) {
              // TODO Auto-generated method stub
          }
      });
  </code></pre>
  
  <p>How can i achieve it? or is it possible?</p>