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I'm working on an app that shows the maps of only a single city. i'm working with offline maps for this app. For this reason is it possible to use MapFragments with offline maps?? Can anybody guide me in this regard??
Of course it's possible to use MapFragment and the Maps v2 API offline.
This is useful if you want to show your own map material.
(However as hinted by Audrius K, you are not allowed to cache any GoogleMaps data, but I don't think that was you question anyway.)
(There was a bug a few weeks ago about initialized the map component offline but that bug has been reported to Google and fixed. I mention it in case you'd find mention of that bug in your research)
I don't think that Googles Term of services even lets you to use it offline. Possible answer Downloading/Caching Google Maps for Offline Use
You always can try to use OpenStreetMaps, but that won't work with map fragment :)
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My question involves google maps api knowledge . I want to use google maps in my android app to display roads / streets in different colours. How i do that? Can i customize the street colours on google map api in any way?
Thank you.
yes we can.Now google actually offer this.
but before that you have to spend some time in understanding few things like:
How this works.
Follow this order to read and understand:- go through these links(advised to proceed in order to have a batter understanding)
have a look at this (https://developers.google.com/maps/documentation/javascript/styling)
here is a example for understanding how it works (https://medium.com/exploring-android/introducing-custom-map-styles-for-google-maps-be2095c38850)
finally google offical link to create customisated json map file(link is given in comment as i am not allowed to post more then 2 link(sorry)).
note: usage of this tool is also shown in second step in example.
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Companies like Google and Garmin have a database of all speed limits of each road that they use on their GPS software. I would like to access and use this information. How would I go about doing that?
These companies either purchased, licensed or built their own map data, of which this information is part.
You might have some success with OpenStreetMap. YMMV.
Google has an API for road data. See this link: https://developers.google.com/maps/documentation/roads/speed-limits
I don't find it very accurate. Speed limit data can be updated via their Map Maker tool. Some of it may be gleaned off of the street view cameras, but not 100% sure that is how they collect it.
I'm also interested in learning Garmin's source for the data. I hear it is just as bad. Does Garmin have a similar API?
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I would like to use offline map functionality for my application. Could somebody recommend to any useful map SDK?
I found these: Skobbler, Bing Maps, and TomTom. But in not sure which one is better. I need a custom POI, routes highligting, and bubless with some information.
Is possible to use google maps, with some pre-downloaded maps for offline use?
Thanks for any advice.
With the GoogleMap API on Android and the MapKit SDK on iOS you can implement custom tile providers. This means you can choose the map tiles that your polylines and markers are overlaid on. The beauty of this is you still get the full functionality of the built in mapping APIs but with the added ability to implement offline maps.
You have a few options with a mapping provider like OpenStreetMaps (which is used by many major companies).
You could download the entire data set and bundle it with your application so the tiles are already downloaded when the user downloads your app. This will greatly increase the size of your application.
Or you implement some offline tile caching. This means that to access the tiles offline the user would have to have seen that part of the map online at some point. You would need to handle the caching of the tiles.
You download the tiles for just the area you need them eg. you ask the user if they wish to download the entire data set for the UK. This would reduce the size of the application whilst making the entire UK available offline.
These are just some ideas. Hope it helps.
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I wonder if with the Google Maps API I can trace a route between two points, taking the distance and time to go, as well as Maps Android application, if anyone has an example of how to do, I am grateful.
Check this link: Android google maps APIs get directions programming
There are no official android API for google maps routing. If you want that, you should download the path from google maps web service and draw the path (polygon) manually.
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Is there any way to draw optimal route(considering traffic) between two geopoints using Android Google maps API?
Yes, but you'll need to do some work with the Google Maps API to get it going. Here's a link to a tutorial that explains how:
http://www.anddev.org/google_driving_directions_-_mapview_overlayed-t826.html
Alternatively you can just link from your app to the Maps app, and let Maps show the directions & route.
Launching Google Maps Directions via an intent on Android