build method

@override Widget build(BuildContext context)

Implementation

@override
Widget build(BuildContext context) {
  bool pwd = password ?? false;
  List<TextInputFormatter> formats = [
    ...?inputFormaters,
    if (allowExp != null) InputFormats.allow(allowExp!),
    if (denyExp != null) InputFormats.deny(denyExp!),
    if (maxLength != null) InputFormats.maxLength(maxLength!),
    if (maxLines == 1) InputFormats.singleLine,
  ];
  Widget? makeSuffixIcon() {
    if (noClear && !pwd) return null;
    Icon? icon;
    if (pwd) {
      icon = _showPassword ? const Icon(Icons.visibility_off, size: 16) : const Icon(Icons.visibility, size: 16);
    } else {
      icon = Icons.clear_rounded.icon(size: 16);
    }
    return IconButton(
      onPressed: () {
        if (pwd) {
          _showPassword = !_showPassword;
        } else {
          controller.clear();
          onClear?.call();
          onChanged?.call("");
        }
        updateState();
      },
      icon: icon,
    );
  }

  return TextFormField(
    key: UniqueKey(),
    focusNode: focusNode,
    controller: controller,
    textAlign: textAlign ?? TextAlign.start,
    style: themeData.textTheme.titleMedium,
    obscureText: pwd && !_showPassword,
    maxLength: maxLength,
    maxLines: maxLines,
    minLines: minLines,
    autofocus: autofucus,
    readOnly: readOnly,
    inputFormatters: formats,
    keyboardType: keyboardType,
    validator: validator,
    decoration: InputDecoration(
      labelText: label,
      hintText: hint,
      helperText: helpText,
      prefixIcon: icon,
      counterText: counterText,
      errorText: errorText,
      border: border,
      suffixIcon: makeSuffixIcon(),
    ),
    onChanged: onChanged,
    onFieldSubmitted: onSubmit,
  );
}