Create an interactive map in iOS [closed] - ios

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I need to create an interactive map in iOS.
I have to do a thing like Expo app.
An image or a map view in background and draw the way between 3-4 points.
I don't know if use Google Maps, Apple Maps, images or something else.

Answer 1

Developing a spatially aware application is no trivial matter on any platform. It will require careful planning and architecture design UP FRONT or you'll find yourself doing a lot of "extreme programming" (tons of refactoring). In order to develop a spatially aware application you will need several items:
A familiarity with a map API. Apple's MapKit API is fine, but there are others such as Mapbox which offer additional services such as
offline caching, custom basemaps, etc.
A custom basemap: The basemap you're seeing here is certainly a custom job and probably not open source, so you'll need to come up
with one of your own. Unfortunately, every map API has a different
approach to this so you'll need to do some research to determine the
right solution for your API.
Map features: You'll need to understand how to add features to your map. Some APIs call these Annotations, while others simply call
them Features (like ESRI). In either case, you will need to generate
your own feature geometry using the Core Location API and whatever components the map API utilizes. You will also need to create custom graphics for these annotations,
unless you can find something suitable in the public domain. If you
intend to add polylines (for directions) or polygons (to highlight an
area) you will also need to define your own custom symbology (line
color, width, fill colors, etc). Again, not every API uses the term
symbology to describe these details but hopefully you get the idea.
Data storage: You'll need to decide how you're going to store and retrieve data for the mapview. You can store everything online in a
custom web service. You could also use something like the Parse API
if you don't have the resources for your own web service.
Alternatively, you could store everything locally in a SQLite
database or using Core Data. In either case, you will need to have a
plan for querying the location data in an efficient manner. SQLite
supports R*Tree indices which are a good way to store a geometry's
bounding box (envelope) information, but you still need to roll your own INSERT and SELECT queries. Most likely you'll need to come up with some combination of the two.
Learn the language: Overall, you absolutely must learn the language of the map APIs. Its vital that you are familiar with the
language of spatially aware applications, including the fundamentals
of location technology, if you intend to be successful in this
project. I would suggest beginning to do some research into the iOS
MapKit API, and maybe an open source solution like Mapbox. Learning geoJSON isn't a bad idea even if you don't intend to use it in your app. It is very simple and could help you learn a lot about spatial technology very quickly.
As you can see, there's a LOT going on in a spatially aware application, and this list is just a starting point. I am not trying to dissuade you from your goal, but just be aware that this isn't a "drag and drop" sort of project.