Android
android.text
public interface

android.text.InputFilter

android.text.InputFilter

InputFilters can be attached to Editables to constrain the changes that can be made to them.

Nested Classes
InputFilter.AllCaps This filter will capitalize all the lower case letters that are added through edits. 
InputFilter.LengthFilter This filter will constrain edits not to make the length of the text greater than the specified length. 
Known Indirect Subclasses

Summary

Public Methods

          CharSequence  filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend)
This method is called when the buffer is going to replace the range dstart … dend of dest with the new text from the range start … end of source.

Details

Public Methods

public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend)

This method is called when the buffer is going to replace the range dstart … dend of dest with the new text from the range start … end of source. Return the CharSequence that you would like to have placed there instead, including an empty string if appropriate, or null to accept the original replacement. Be careful to not to reject 0-length replacements, as this is what happens when you delete text. Also beware that you should not attempt to make any changes to dest from this method; you may only examine it for context.
Copyright 2007 Google Inc. Build 0.9_r1-98467 - 14 Aug 2008 18:56