//获取Android手写识别后的结果
 public void CallHWRRec()
 {
     AndroidUtil.Call("hwrRec");
 }
 //显示手写模块
 private void ShowHWRModule()
 {
     AndroidUtil.Call("addHandWriteBroad");
 }
 void Start()
 {
     writeFireTime = WriteFireTime;
     //清除之前的笔迹
     AndroidUtil.Call("clearPaint");
 }
 //隐藏手写模块
 private void HideHWRModule()
 {
     AndroidUtil.Call("removeHandWriteBroad");
 }