easonxyi issues

Results 2 issues of


                                            easonxyi

发送event类型消息报错

### My environment: "aurora-imui-react-native": "^0.13.0" "react-native": "0.58.6" ![image](https://user-images.githubusercontent.com/13465460/56080833-8b508400-5e38-11e9-9e33-907859bbbe59.png) ![image](https://user-images.githubusercontent.com/13465460/56080834-91defb80-5e38-11e9-9e9c-db05c6dc197e.png) 我是按照文档上EventMessage的格式组的 ![image](https://user-images.githubusercontent.com/13465460/56080836-973c4600-5e38-11e9-820c-0d2d9d395554.png)

定义底部IMUI.ChatInput容器的高度

### My environment: - `react-native` 0.58.6: - `aurora-imui-react-native` 0.13.0: 如下图所示，我在IMUI.ChatInput定义style的height为106，但是只对白色的输入框有影响造成输入框占满了bottom的头部不美观。请问我有什么办法可以让input的输入框框在底部垂直居中吗？ ![image](https://user-images.githubusercontent.com/13465460/55333590-315fce00-54ca-11e9-9b51-41a63378ab1d.png) ![image](https://user-images.githubusercontent.com/13465460/55333802-94516500-54ca-11e9-9d64-4958a679bacb.png)