Develop Reference

Android Play integrity api samples possibly xamarin

I am looking for way to secure my apps in both Android and iOS.
Android
Noticed that there is this new api Play Integrity Api
I am looking for any example on usage Ideally in c# Xamarin , but I guess any example might be a starting point and see if can be ported to xamarin.
Any suggestions

I couldn't find Play Integrity Api sample for Xamarin, it seems that it is available only for Java, Kotlin, and Unity. I suggest that for now, you protect your app with Dotfuscator.
For android, you can also Protect against security threats with SafetyNet here is the Xamarin version Xamarin.GooglePlayServices.SafetyNet

Cordova/Phonegap AJAX iOS not seem to be getting responses

I have a phonegap/cordova application and I need help.
The app connects to my client's WordPress sot via REST API to pull subscriber's info and use it to unlock features.
ita working flawlessly on my end (android and ios) however on my client's ios phones, it doesn't seem to work.
any ideas as to why it isn't working on their end and works on all my devices?
Thanks!

Make sure they haven't activated the option that allows connection to a whitelisted set of websites only. Anyway, this issue you are reporting is getting more and more common in the recent weeks, it seems Apple has introduced something new to bother developers (even more)? What iOS version are they using?

There are some issues in the latest version of iOS 11.3, that causes this type of issue. Also do check whether URLs of all the REST APIs given, must be of the the cloud or server on which its hosted.
It can be one of the issue done by mistake.

Spotify Android integration, Is it possible to preview track without Premium account?

In spotify web-api it is possible to preview track for 30 sec. So, I want to know, is it possible to implement this functionality using spotify android sdk. I was unable to find any Classes or methods related to that and also want to know if this functionality is available in spotify android sdk, then can we test it without spotify Premium account?
OR
Is it possible to use Spotify Web Api in android app?
Any help would be appreciated. Thanks in advance.

The Spotify native SDKs only use a "native" component for playback of full-length songs. The correct, officially-supported way of looking up metadata etc is to use the Web API. The iOS SDK provides a wrapper for this, but the Android SDK doesn't (yet).
Therefore, yes, you should use the Web API in your Android app. Since the Web API allows 30-second previews without authentication, you can do that in your app too.
Since the Android SDK doesn't include wrappers for the Web API at the moment, you'll need to build them yourself. The Spotify Web API is just a standard JSON/REST API - there's nothing special about it - so any Android JSON/REST library should be able to interact with it just fine.

Server-sent events (SSE) and Cordova / Phonegap

I want to implement an application where a user receives a notification when some other user has done something. I don't want to user Push Notifications for that, because this information is only relevant, when the application is opened.
I thought of using Server-sent events. According to caniuse EventSource is not supported on Android lower then 4.3.
Does anyone know something about the support of this cool feature in Phonegap / Cordova? Or a plugin which provides this functionality on Android as well? iOS seems to be no problem.
I'm using Cordova 3.1.
Thanks!

You can have a look at this EventSource polyfill library:
https://github.com/Yaffle/EventSource
It's only supported on the Android browser (lower than 4.3 at least) if you add 4k of padding after each message. Perhaps you can also try implementing long polling? It might be a better solution instead of eventsource with 4k padding.
You can read more on this topic here:
https://github.com/Yaffle/EventSource/issues/14

I solved this issue by using Web-Sockets and a plugin for older Android devices in my Cordova application. The Phonegap WebSocket Plugin provides the same API like the Javascript W3C standard and can therefore be used without any issues on iOS, Android <4.3, and Android 4.3+.
Please note, that we had to use secure Web-Socket connections (wss://) to get it working with 3G connections as mentioned here.

Is there an Android based Google Glass Emulator?

Is it possible to define an Android Virtual Device for use to develop Google Glass apps (until the devices become widely available)?

There's no official Glass Emulator yet.
I overcame this via installing Glass APKs into Nexus 7 tablet.
It worked perfectly:
I can control it in http://google.com/myglass
Mirror API works flawlessly.
GDK Sneak Peak doesn't work.
I described all the required steps here:
http://www.elekslabs.com/2013/11/google-glass-development-without-glass.html

There isn't an out the box emulator.
You can use the playground to preview your cards, this will show you how your card will be laid out depending on what attributes you provide in your timeline post object. On the right. Just switch that view on the right to HTML if you want to provide a custom HTML template for your cards.

Yes you can.. Use your phone as google glass.
http://pathofacoder.com/2013/07/19/installing-google-glass-in-an-android-phone/

here are infos about an available emulator for people without google glass
google glass emulator
and a project on github
Scarigami Mirror API

As a matter of fact, I just saw an Engadget article (this morning I think) that announced that the Google Glass API is now live
Additional links from the Engadget article:
https://plus.google.com/+GoogleDevelopers/posts/cwWuUY6xYKW (Originaly announced on)
https://developers.google.com/glass/ (The ACTUAL Link to the API) :-)
However, as the developer site lists, there is nothing specific for Android. :-(
(Source: https://developers.google.com/glass/downloads/)
The supported platforms at the moment are:
Java
Python
Go
PHP
.NET
Ruby
Dart

I've been digging the docs all this morning and as far as I understood, you can see what type of code/objects would be sent to the Glass using the same code on the example https://glass-java-starter-demo.appspot.com/ (code available here https://github.com/googleglass/mirror-quickstart-java )
But an actual emulator that you can see how what the Glass screen would be showing, not really.

There is an Unofficial Mirror API that tries to reproduce the behaviour of glass device with the existing Google API's.
you can check it here. I have not tested it yet.
http://glass-apps.org/google-glass-emulator

According to google, Glass has to be treated as a unique platform. And the apps developed for glass are called as Glasswares. And they're all almost web-based services which are hosted in GAE. Official statement says,
The Google Mirror API allows you to build web-based services, called
Glassware, that interact with Google Glass.
Of-course glass runs on ICS Android 4.0.4 which doesn't mean you can develop glasswares as much as like developing android apps. You need Google's Mirror API to sync data between your glass and glasswares.
And as of now, it's in explorer state and only developers and explorers who has google glass are having access to Mirror API. But as #infoman answered, you can use the Scarigami Mirror API and playground can be acting as your emulator.