字符串的可编辑文本

If I understand correctly, you want to get the String of an Editable object, right? If yes, try using toString().

Based on this code (which you provided in response to Alex's answer):

Editable newTxt=(Editable)userName1.getText();
String newString = newTxt.toString();

It looks like you're trying to get the text out of a TextView or EditText. If that's the case then this should work:

String newString = userName1.getText().toString();

This code work correctly only when u put into button click because at that time user put values into editable text and then when user clicks button it fetch the data and convert into string

EditText dob=(EditText)findviewbyid(R.id.edit_id);
String  str=dob.getText().toString();