The differece of AVD with google APIs and not - android-virtual-device

What is the difference between Google APIs and not?

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How to integrate with Slack similar to how Google Drive did?

I had gone through the documentation of Slack on how to develop Slack app. When I installed Google Drive Slack app I saw that the google drive options(create new file, etc) can be accessed when clicking the '+' button on the left side of send message input. How is this achieved?
Unfortunately, this feature is not available to all 3rd party developers.
In general there is a difference between the features available to all developers and to companies that have develop apps in close cooperation with the Slack team, like Google, Twitter and others.
You can see all features available to all 3rd party developers in the official Slack documentation, e.g. here.
However, Slack is constantly adding new features to its platform and might add this feature down the road. If you want to see what new features are currently planned checkout the Slack Platform Roadmap.
There is one interesting feature from Google Drive though, that is available to all devs. And that is the link detection. When you link a google drive document, it will be automatically detected as such and you will be presented with options what to do next in Slack. That you can also do with your own Slack apps with the Slack app unfurling feature.

Tango needs google web services?

our project is in China, where all google services are blocked.
does Tango need any google services, or is it self-sufficient and is able to operate on its own? if it needs services, it is basically useless to our case.
Basically,
Normal Project Tango device's features didn't need online google services.
MotionTracking, AreaLearning and Depth should do well.
you can download the sample apps sources code on here
like c samples :
https://developers.google.com/project-tango/apis/c/
try that, it won't need online google services.
But there maybe some apps which integrated Tango feature with other google services do.
Unfortunately, since Google Services is blocked in China, you can't get the BSP OTA and Play store apps updated, which means at some point you can't get new features and bugs fixed on your devices.
If you need further help. better contact project-tango-help#google.com.
AFAIK it does not. I can confirm that I've been using my devkit offline most of the time.
More generally, the core Tango services are all hosted on the device, and they were preinstalled on my devkit when I got it about 3 weeks ago. However, updates to these services come OTA via Google Play.
The three services Tango provides are motion tracking, area learning and depth sensing. Depth sensing is provided directly by the sensors, and motion tracking obviously cant be done online in a performant way. AFAIK, area learning too happens offline, but you can find more info here.

Chrome ARC, Android -- ways to make paid apps?

I've recently posted my Android app to Chrome Web Store using ARC Welder, and wondering about how I can make it a paid app.
Currently, for Android, I have a free version and an "unlocker" as a separate app on Google Play. The user installs the free version first, and then if he/she decides to "go pro", he/she purchases and installs the "unlocker" which talks to the free versions and activates it into "pro" mode.
So my questions:
When packaging an Android app with ARC, it runs on its own, so there is no way to have a second app ("unlocker") running in the same Android "sandbox", correct?
Is it possible for an Android / ARC app to access "purchased" state via Google Play APIs, say for checking if the user purchased the "unlocker" app on Android?
I assume that the answer is "no", at least for now:
https://developer.chrome.com/apps/getstarted_arc
Since ARC is in Beta, it doesn't support all of Google Play Services yet.
However, here are some available APIs:
Auth (OAuth2)
GCM
Google+ sign-in
Maps
Location
Ads
I don't see licensing APIs here.
I found these links on monetizing Chrome apps:
https://developer.chrome.com/webstore/money
https://developer.chrome.com/webstore/payments-iap
Even if this also applies to Chrome OS (not sure), it seems to require JavaScript coding to talk Chrome Webstore APIs. Is it possible to access those from inside the Android ARC sandbox?
Are there better options that I'm missing?
None? Should I just wait until Android ARC is fleshed out more and hope that it includes support for paid apps?
The direct answers are:
1) You can bundle up two APKs so they both run in the same sandbox. But only one of them is launched as "your app". It is free to then launch or otherwise use the second APK as it sees fit.
2) But as you noticed, there is no way to easily check for a purchase/license right now.
Your best bet may be to wait for the Google Play Services license APIs to be implemented.

Fetching Android app uninstall numbers using Google Play Developer console API

I am trying to fetch the uninstalls number from Google Play developer console using an API. My question is does an official API exist?

Reverse Geocoding/MapKit on OSX?

the iPhone SDK provides with MapKit a simple solution for maps und reverse geocoding without any additional costs. Does anyone know if there is a similar Framework for Cocoa on OSX? I know that google maps is capable of that but as far as I know and understand I have to pay while using google maps in a commercial application?
Thanks for your answers
twickl
You won't have to pay as long as you don't use the quota.
The api documentation is here :
http://code.google.com/apis/maps/documentation/geocoding/
If you plan to use it reasonably, this will remain free (no api key is required anymore by google)

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