Class PasswordTransformationMethod

java.lang.Object
icyllis.modernui.text.method.PasswordTransformationMethod
All Implemented Interfaces:
TransformationMethod, NoCopySpan, TextWatcher

public class PasswordTransformationMethod extends Object implements TransformationMethod, TextWatcher
  • Method Details

    • getInstance

      public static PasswordTransformationMethod getInstance()
    • getTransformation

      @Nonnull public CharSequence getTransformation(@Nonnull CharSequence source, @Nonnull View view)
      Description copied from interface: TransformationMethod
      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.
      Specified by:
      getTransformation in interface TransformationMethod
    • onFocusChanged

      public void onFocusChanged(@Nonnull View view, @Nonnull CharSequence sourceText, boolean focused, int direction, @Nullable Rect previouslyFocusedRect)
      Description copied from interface: TransformationMethod
      This method is called when the TextView that uses this TransformationMethod gains or loses focus.
      Specified by:
      onFocusChanged in interface TransformationMethod
    • beforeTextChanged

      public void beforeTextChanged(CharSequence s, int start, int count, int after)
      Description copied from interface: TextWatcher
      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.
      Specified by:
      beforeTextChanged in interface TextWatcher
    • onTextChanged

      public void onTextChanged(CharSequence s, int start, int before, int count)
      Description copied from interface: TextWatcher
      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.
      Specified by:
      onTextChanged in interface TextWatcher
    • afterTextChanged

      public void afterTextChanged(Editable s)
      Description copied from interface: TextWatcher
      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 Spannable.setSpan(java.lang.Object, int, int, int) in TextWatcher.onTextChanged(java.lang.CharSequence, int, int, int) to mark your place and then look up from here where the span ended up.
      Specified by:
      afterTextChanged in interface TextWatcher