To start your first iOS development project,
you might need to sign into
Xcode with your Apple ID. 
Development and testing is supported for any Apple ID.
Enrolling in the Apple Developer Program is required to
distribute your app to the App Store.
For details about membership types,
see Choosing a Membership.
          
          
            If automatic signing fails in Xcode, verify that the project’s
General > Identity > Bundle Identifier value is unique.

Start your app by running flutter run
or clicking the Run button in Xcode.

Android setup

Note:
  Flutter relies on a full installation of Android Studio to supply
  its Android platform dependencies. However, you can write your
  Flutter apps in a number of editors; a later step discusses that.

Install Android Studio

Download and install Android Studio.