Java FormulaEditorEditText.isThereSomethingToDelete примеры использования

Пример #1

Файл: FormulaEditorFragment.java Проект: paggerbua/Catroid

  public void updateButtonsOnKeyboardAndInvalidateOptionsMenu() {
    getActivity().invalidateOptionsMenu();

    ImageButton backspaceOnKeyboard =
        (ImageButton) getActivity().findViewById(R.id.formula_editor_keyboard_delete);
    if (!formulaEditorEditText.isThereSomethingToDelete()) {
      backspaceOnKeyboard.setAlpha(255 / 3);
      backspaceOnKeyboard.setEnabled(false);
    } else {
      backspaceOnKeyboard.setAlpha(255);
      backspaceOnKeyboard.setEnabled(true);
    }
  }