Google maps native in Ionic 2 with custom marker
$ npm install -g ionic
$ npm install -g cordova
$ git clone https://github.com/mayrarodriguez1709/ionic2-google-maps-markers
$ cd ionic2-google-maps-markers
$ npm install
$ ionic state restore
$ ionic plugin add cordova-plugin-googlemaps --variable API_KEY_FOR_ANDROID=”HERE_YOU_ANDROID_API_KEY” --variable API_KEY_FOR_IOS=”HERE_YOU_IOS_API_KEY”
you can get one in https://developers.google.com/maps/
$ ionic plugin add cordova-plugin-geolocation
$ ionic run android $ ionic run ios
and ¡Voilá!
Note: If you're using an emulator you have to install the GAPPS (Google apps) previously.