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What is some code I could use to retrieve geolocated images uploaded by users with GeoFire depending on the users location?
What would be the first steps to follow? Is actually GeoFire the best way to do this?
Thank you in advance.
Yes, GeoFire is the usual tool to achieve the goal you describe: store and retrieve information based on its position, asuming you are already familiar with Firebase and using it as your backend
The first steps to follow should be to read the Geoquery quickstart and try the examples you can find in their documentation: https://github.com/firebase/geofire-objc/tree/master/GeoFire
You can see a more complete example here (although it is in Objective-C):
https://github.com/firebase/geofire-objc/tree/master/examples/SFVehicles
Once you have tried the examples you will have an idea of how you can use GeoFire to achieve your goal.
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I have some program that I want to do face verification by previously stored people faces in app data, and use the device's camera to get the current person standing in front of it, to make the program log the user in.
I have found some code but I don't know how to use it, it uses OpenCVSharp.
Can anyone tell me how to do this verification in Xamarin Forms?
P.S:- I've found some resources that Aren't Free, such as EmguCV, I want something that is free.
You can use Azure Cognitive service
https://azure.microsoft.com/en-gb/services/cognitive-services/computer-vision/
It has a free tier(more than enough if you have less than 100 users I'd say) to use.
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I am looking for something in swift that can give me the travel time (by car) of two coordinates. On some other threads, I have only seen suggestions to use external sources, but my question is, does apple have a built in feature to do this? Similarily, if there is not can someone please link a few external sources, as I have not found it (probably because I don't know exactly what I am looking for?
Thanks a lot.
I don't know of any Swift API solutions. Google has a great solution though. Check out Google's Distance Matrix API. It lets you calculate travel time for two coordinates with al sorts of extra options.
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Is it possible to implement two step authentication in Rails using Google's android application Google Authenticator?
I want to implement two step verification similar to dropbox. They use Google Authenticator as well.
Is there any example code/application in rails?
A little googling has revealed a gem extension to devise that does this
https://github.com/AsteriskLabs/devise_google_authenticator
Or there's a blog post giving hints on how to roll your own
https://moocode.com/posts/5-simple-two-factor-ssh-authentication-with-google-authenticator
ActiveModel::Otp makes adding Two Factor Authentication(TFA) to a model simple https://github.com/heapsource/active_model_otp
I think this gem is way better since it's extendable. One can setup backup codes if you need.
Tinfoil Two factor
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I need to implement searching images in my iOS app using google search. I found google objective-c API (http://code.google.com/p/gdata-objectivec-client/). But not found examples for searching images. Maybe anyone already made something like this?
EDIT: this answer is out of context as it is for custom search rather than the general google search
This might help you:
Google Search Blog: Image results now available from the Custom Search API
Or if you want to skip the blog post completely:
Google code: JSON/Atom Custom Search API
Check out my github project https://github.com/PavelKatunin/GoogleImagesSearcher
It searches images via Google Api and presents them in UITableView.
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I'm working on an iOS application where I'd like to be able to display stores with their respective logos. I've spent a while looking for an API that does this and I can't find anything besides XigniteLogos. Unfortunately this is outside of my budget - is there a free solution available?
This is a very interesting question.
My first thought was that you could try doing a Google Image search. I know Google has a service called Goggles which can recognize logos, so searching the other way must be possible using Google.
I did a sample search on Google Images for "General Mills logo" (I guess I am hungry for breakfast right now) and the first result that was returned was from SeekLogo.com
I am not sure what SeekLogo is, or if they have an API, but they may be exactly what you're looking for. If not, you could try a Google images search and use the first result... (Google does have an image search AIP but... it's been deprecated? The announcement of that says that the documentation / community may have solutions which are still supported...)