Function keyBoardResize

keyBoardResize(downCb, upCb): any
H5 移动端软键盘缩回/弹起回调 return cancel listener of keyBoardResize
Parameters
- downCb: any
  缩回回调
- upCb: any
  弹起回调
Returns any
Example
```
keyBoardResize(() => { console.log('downCb'); }, () => { console.log('upCb'); }); /// do something
```