Let's Chat II

Here is a part (2/3) of the chat function of my material design，and the other details will be showed in next days.
When the users chat, the immediate feedback from the status of the other side is what they want to see. And my ainimation is just based on that consideration.

这个作品是我设计的聊天动效的一部分（2/3），产品采用谷歌原质化设计语言，其余部分将会陆续更新。 当用户聊天时，他们希望看到对方状态的及时反馈，基于这点，我做出了图中你所看到的交互动效。

Special: If there's any grammar/words mistake, you can tell me in comment. I'll be grateful to accept the opinion and be more perfect.