Show Annotations Android Appcelerator

index.js

// function 
function showAnnotationsAndroid(_data) {

	var largestLat = Math.max.apply(Math, _data.map(function(o) {
		return o.latitude;
	}));

	var smallestLat = Math.min.apply(Math, _data.map(function(o) {
		return o.latitude;
	}));

	var largestLon = Math.max.apply(Math, _data.map(function(o) {
		return o.longitude;
	}));

	var smallestLon = Math.min.apply(Math, _data.map(function(o) {
		return o.longitude;
	}));

	var latDelta = (largestLat - smallestLat);
	var lonDelta = (largestLon - smallestLon);

	$.searchTrainerMapView.setRegion({
		latitude : Ti.App.cords.latitude,
		longitude : Ti.App.cords.longitude,
		latitudeDelta : latDelta,
		longitudeDelta : lonDelta,
		bearing : Ti.App.cords.heading,
		tilt : 60
	});

}