Package icyllis.modernui.text.method

Interface TransformationMethod

All Known Implementing Classes:

PasswordTransformationMethod, ReplacementTransformationMethod, SingleLineTransformationMethod

public interface TransformationMethod

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.

Method Summary

Modifier and Type	Method	Description
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.
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.

Method Details

getTransformation

@Nonnull
CharSequence getTransformation(@Nonnull
 CharSequence source,
 @Nonnull
 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.

onFocusChanged

void onFocusChanged(@Nonnull
 View view,
 @Nonnull
 CharSequence sourceText,
 boolean focused,
 int direction,
 @Nullable
 Rect previouslyFocusedRect)

This method is called when the TextView that uses this TransformationMethod gains or loses focus.