Skip to content

Most visited

Recently visited

navigation
Added in API level 1

TransformationMethod

public interface TransformationMethod

android.text.method.TransformationMethod
Known Indirect Subclasses


TextView uses TransformationMethods to do things like replacing the characters of passwords with dots, or keeping the newline characters from causing line breaks in single-line text fields.

Summary

Public methods

abstract CharSequence getTransformation(CharSequence source, View view)

Returns a CharSequence that is a transformation of the source text -- for example, replacing each character with a dot in a password field.

abstract 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 methods

getTransformation

Added in API level 1
CharSequence getTransformation (CharSequence source, 
                View view)

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.

Parameters
source CharSequence
view View
Returns
CharSequence

onFocusChanged

Added in API level 1
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.

Parameters
view View
sourceText CharSequence
focused boolean
direction int
previouslyFocusedRect Rect
This site uses cookies to store your preferences for site-specific language and display options.

Hooray!

This class requires API level or higher

This doc is hidden because your selected API level for the documentation is . You can change the documentation API level with the selector above the left navigation.

For more information about specifying the API level your app requires, read Supporting Different Platform Versions.

Take a one-minute survey?
Help us improve Android tools and documentation.