android.text.method.PasswordTransformationMethod
Summary
Public Constructors
Public Methods
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void |
afterTextChanged(Editable s) |
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void |
beforeTextChanged(CharSequence s, int start, int count, int after) |
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static |
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PasswordTransformationMethod |
getInstance() |
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CharSequence |
getTransformation(CharSequence source, View view) |
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void |
onFocusChanged(View view, CharSequence sourceText, boolean focused, int direction, Rect previouslyFocusedRect) |
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void |
onTextChanged(CharSequence s, int start, int before, int count) |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait
Details
Public Constructors
public
PasswordTransformationMethod()
Public Methods
public
void
afterTextChanged(Editable s)
This method is called to notify you that, somewhere within
s
, the text has been changed.
It is legitimate to make further changes to
s
from
this callback, but be careful not to get yourself into an infinite
loop, because any changes you make will cause this method to be
called again recursively.
(You are not told where the change took place because other
afterTextChanged() methods may already have made other changes
and invalidated the offsets. But if you need to know here,
you can use
setSpan(Object, int, int, int) in
onTextChanged(CharSequence, int, int, int)
to mark your place and then look up from here where the span
ended up.
public
void
beforeTextChanged(CharSequence s, int start, int count, int after)
This method is called to notify you that, within s
,
the count
characters beginning at start
are about to be replaced by new text with length after
.
It is an error to attempt to make changes to s
from
this callback.
Returns a CharSequence that is a transformation of the source text --
for example, replacing each character with a dot in a password field.
Beware that the returned text must be exactly the same length as
the source text, and that if the source text is Editable, the returned
text must mirror it dynamically instead of doing a one-time copy.
public
void
onFocusChanged(View view, CharSequence sourceText, boolean focused, int direction, Rect previouslyFocusedRect)
This method is called when the TextView that uses this
TransformationMethod gains or loses focus.
public
void
onTextChanged(CharSequence s, int start, int before, int count)
This method is called to notify you that, within s
,
the count
characters beginning at start
have just replaced old text that had length before
.
It is an error to attempt to make changes to s
from
this callback.