Native BLE API in Android - bluetooth-lowenergy

The stackoverflow user Wilhelmsen said a few months ago that "Rumors say that Google will release an official API around August 2012". So now it is the end of August, and I was wondering if anyone has any updates on the status of the native BLE API for Android phones - it's not on Jellybeans unfortunately!

Android API for BLE development is now available with the latest update [API 18].
Check the link http://developer.android.com/about/versions/jelly-bean.html

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What protocol or api does the android tv remote control app use?

google tv used anymote protocol for remote control but the case with android tv does not looks the same. No official docs clearify if they still use the same.
I want to develop an app just like the app by google but with some changes and additions mostly on gamepad part. Additionally if anyone knew how apps like cetus play and droid mote for android tv work?
almost similar questions have been asked before as well but never properly answered. Any information and suggestions will be helpul

Android Management API (COSU) on AndroidTV?

Android Management APIs are supposed to be "compatible with any device running Android 5.1 or above that has Google Play installed." I really want that to be true, but am having trouble with Android TVs. (Specifically, a NexBox A95x and a TX3mini I'm testing with.)
My stumbling point is how to enter the enrollment token into the device when provisioning it? I had no problem with a Samsung tablet. But, the Android TVs don't use the same startup wizard after hardware reset, so there doesn't seem to be an opportunity to trigger a QR reader, or manually enter the token. I've tried entering the enrollment token into Google Play app (in lieu of the email or phone number to log in), but no luck.
Any ideas or insight how to make this work? If anyone knows a definitive reason why this can't be made to work (e.g. Management APIs don't work on AOSP) that'd be helpful information too.
Clarification (Updated 26 Dec 2017)
Here's a minimal, complete, and verifiable example of the Google Management APIs. The Quickstart exercise from Google, themselves.
Problem: The Quickstart exercise doesn't seem to work with Android TV (tested on a NexBox A95x and a TX3mini). The blocker appears on this step: (Provision A Device). The Android TVs have their own setup wizards that do not accept an Android For Work enrollment token. (I have completed the Quickstart on a Samsung tablet without problem.)
Google's documentation says the Management APIs are "compatible with any device running Android 5.1 or above that has Google Play installed" so it seems these Android TVs should qualify.
Has anyone found a workaround to do complete the Management API Quickstart on an Android TV?
As far as I know the Android Management API doesn't supports Android-based OS's like Android TV, Android Wear, Android Auto or Android Things. It just supports standard Android for phones and tablets.

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I am working on an iOS app which need to get push notifications(using GCM) from web service(Made of Python).
Currently the web service works fine with Android devices, but it reports Error=MismatchSenderId, when I check this error in the online doc, it suggests the sender_id and API_key are not matched. The thing is, as I understand it(could be wrong), for iOS SDK, unlike the Android's, it doesn't need sender_id.
The tricky part is I have no access to the web service yet(which the collaboration party claim the Android app works fine with it). Could anyone shred a light on what steps should I take to fix this issue?
THanks in advance.

Microsoft Band SDK - How to get the battery status?

I would like to develop a Windows Phone App (C#) for the Microsoft Band and I need to get the current battery status from it. I cannot find anything in the documentation or the web.
Could someone help, please?
Thanks,
Marwin
The battery status is not currently exposed by the SDK. You could raise that as feature request for a future release at http://microsofthealth.uservoice.com/

Is the Google SignIn framework available with mac catalyst support?

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Google Support has mentioned the following regarding Mac Catalyst:
We cannot provide technical assistance regarding your concern as the Mac Catalyst is not supported by the Mobile Ads SDK. To get future updates regarding this, please keep an eye on our blog.

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