Android 自定义搜索框searchView with voice icon

In an android app, I want to implement a searchView like this

There are some requirements:

the SearchIcon and the text("搜索")are in the middle of the searchView

a voiceIcon is inside the right side of the searchview.

3.the searchView is expanded by default.

I try to use the android searchView component, but i can't move the searchIcon to the middle of the searchView and I dont konw how to add an voiceIcon.

ni shi wai guo ren ?