iOS: Auto-focus keyboard in input when launch app first time

[huydv92]

I have a screen that will display an input. So the user can enter the number for the first time.
But I tried many ways and still can't see the focus on the input.

Note: This only happen on iOS
Does anyone have an idea?
I used :
version: "cordova-plugin-keyboard": "^1.2.0"
reactjs
material UI