Android APIs
public abstract class

LoginFilter

extends Object
implements InputFilter
java.lang.Object
   ↳ android.text.LoginFilter
Known Direct Subclasses

Class Overview

Abstract class for filtering login-related text (user names and passwords)

Summary

Nested Classes
class LoginFilter.PasswordFilterGMail This filter is compatible with GMail passwords which restricts characters to the Latin-1 (ISO8859-1) char set. 
class LoginFilter.UsernameFilterGMail This filter rejects characters in the user name that are not compatible with GMail account creation. 
class LoginFilter.UsernameFilterGeneric This filter rejects characters in the user name that are not compatible with Google login. 
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.
abstract boolean isAllowed(char c)
Returns whether or not we allow character c.
void onInvalidCharacter(char c)
Called whenever we encounter an invalid character.
void onStart()
Called when we start processing filter.
void onStop()
Called when we're done processing filter
[Expand]
Inherited Methods
From class java.lang.Object
From interface android.text.InputFilter

Public Methods

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

Added in API level 1

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. Returns the CharSequence that we want 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.

Parameters
source
start
end
dest
dstart
dend
Returns
CharSequence

public abstract boolean isAllowed (char c)

Added in API level 1

Returns whether or not we allow character c. Subclasses must override this method.

Parameters
c
Returns
boolean

public void onInvalidCharacter (char c)

Added in API level 1

Called whenever we encounter an invalid character.

Parameters
c the invalid character

public void onStart ()

Added in API level 1

Called when we start processing filter.

public void onStop ()

Added in API level 1

Called when we're done processing filter