text: /**
   *
   * @desc H5软键盘缩回、弹起回调
   * 当软件键盘弹起会改变当前 window.innerHeight，监听这个值变化
   * @param {Function} downCb 当软键盘弹起后，缩回的回调
   * @param {Function} upCb 当软键盘弹起的回调
   */
  
  function windowResize(downCb, upCb) {
      var clientHeight = window.innerHeight;
      downCb = typeof downCb === 'function' ? downCb : function () {};
      upCb = typeof upCb === 'function' ? upCb : function () {};
      window.addEventListener('resize', () => {
          var height = window.innerHeight;
          if (height === clientHeight) {
              downCb();
          }
          if (height < clientHeight) {
              upCb();
          }
      });
  }
  
  module.exports = windowResize;
  