demo/xinhuaribao/lib/util/keyboard_util.dart

import 'dart:core';

import 'package:flutter/cupertino.dart';
import 'package:news_app/constant/size_res.dart';

/// @author: bo.zeng
/// @email: cnhbwds@gmail.com
/// @date: 2025 2025/4/17 15:21
/// @description:

class KeyboardUtils {
  /// 显示软键盘
  static void showKeyboard(BuildContext context, FocusNode focusNode) {
    FocusScope.of(context).requestFocus(focusNode);
  }

  /// 隐藏软键盘
  static void hideKeyboard(FocusNode focusNode) {
    focusNode.unfocus();
  }

  /// 判断软键盘是否可见
  static bool isKeyboardVisible(FocusNode focusNode) {
    return focusNode.hasFocus;
  }

  /// 获取键盘高度（如果弹出则返回高度，否则为 0）
  static double keyboardHeight(BuildContext context) {
    final rawKeyboardHeight = MediaQuery.of(context).viewInsets.bottom;
    final estimatedKeyboardHeight = rawKeyboardHeight - horizontalPadding; // 经验值，避免过高
    return estimatedKeyboardHeight > 0 ? estimatedKeyboardHeight : 0;
  }
}