Google Analytics iOS - Not Works

Hi everybody! Im working in a project with Ionic 3. I try use GA but doesn’t works. I follow the instructions.

this.platform.ready().then(() => {‘UA-XXXXXXX-1’)
.then(() => {
console.log(‘Google analytics is ready now’);‘home’);
.catch(e => console.log(‘Error starting GoogleAnalytics’, e));

I tried put the code in the constructor of app.components, in the constructor of home.ts, etc etc
The console doesn’t shows me error, but doesn’t works
Ahh and I downgrade the plugin to the version 1.6.0

what more? any help?

Thank you very very much!!