How to write <script> in $scope style - ionic-framework

Question

I'm implementing google map into my ionic app, and I have a script in my index.html, which, will only allow the map works in the index.html.
But I need my map in my templates file route.html instead, so I believe I should move the script in the index.html to the specific controller.js file, but things here are written in $scope style, can anyone tell me how could I wrote the style into $scope style?
And why actually things won't works in the route.html as the same code is used?
<div id="map"></div>
Here's my script in my index.html:
<script>
function initMap() {
var uluru = {lat: -25.363, lng: 131.044};
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 4,
center: uluru
});
var marker = new google.maps.Marker({
position: uluru,
map: map
});
}
</script>
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=APIKEY&callback=initMap">
</script>
And my controller in the controller.js
.controller('RouteCtrl', function($scope, $ionicLoading) {
$scope.mapCreated = function(map) {
$scope.map = map;
};
$scope.centerOnMe = function () {
console.log("Centering");
if (!$scope.map) {
return;
}
$scope.loading = $ionicLoading.show({
content: 'Getting current location...',
showBackdrop: false
});
navigator.geolocation.getCurrentPosition(function (pos) {
console.log('Got pos', pos);
$scope.map.setCenter(new google.maps.LatLng(pos.coords.latitude, pos.coords.longitude));
$scope.loading.hide();
}, function (error) {
alert('Unable to get location: ' + error.message);
});
}
})

Answer 1

There 2 ways to solve your problem :
Change your script to angular method in controller or create a service , like:
var marker = new google.maps.Marker({
map: $scope.map,
animation: google.maps.Animation.DROP,
position: latLng
});
var infoWindow = new google.maps.InfoWindow({
content: "Here I am!"
});
google.maps.event.addListener(marker, 'click', function () {
infoWindow.open($scope.map, marker);
});
Change it to jquery in controller, but it not recommend because it will break to purpose of angular usage in ionic:
var map = new google.maps.Map($("#map"), {
zoom: 4,
center: uluru
});