Skip to main content

Cordova-plugin-ble-central without BACKGROUND_LOCATION permission

Happy New Year.

I have been developing a Cordova app on Android that uses Bluetooth Low Energy (BLE).  To accomplish this, I have been using Don Coleman's cordova-plugin-ble-central.  This is a neat plugin with a pretty simple API that lets you do serial communications over BLE. It is compatible with both Android AND iOS.  It's installable with NPM, but I recommend you get it directly from his Github.  The one on NPM seems to be broken on newer Android devices.  The issue  is that Google now requires ACCESS_FINE_LOCATION permission if you are using bluetooth, and the one on NPM is older and hasn't been updated to request this permission.  But that's not really what this post is about.

My app is essentially a remote control for a light.   All I am trying to do is communicate over bluetooth when the app is in the foreground.  However, the Don Coleman plugin demands the BACKGROUND_LOCATION permission (presumably this would be required if I was trying to continue to send/receive data notifications while the app is in the background).  The problem is that this permission comes with some fairly hefty declaration requirements if you are trying to get your app into the Play Store.  For example, you have to make a video demonstrating the feature in your app that makes use of this functionality.  As I stated earlier, I have no such feature so it will be impossible for me to get my app to pass review.  

The only solution I could see was to fork Don's plugin and remove the BACKGROUND_LOCATION permission.  So far it seems to work.  If you have a similar problem, perhaps you can benefit from this version of the plugin as well.  A couple of things:

  1. In case it doesn't go without saying, if your app is in the background, you will not be able to do Bluetooth communication using this version of the plugin.
  2. I have only made changes to the Android side. I don't know if the iOS side still somehow requests BACKGROUND_LOCATION permission.  If it does, I will ultimately need to address that as well since my app is going to be available for both platforms.

So here it is: High Tech Harmony's cordova-plugin-ble-central without BACKGROUND_LOCATION

To use it, go to your Cordova build folder of your project and do the following:

(only if you have Don's plugin already)
cordova plugin remove cordova-plugin-ble-central 

cordova plugin add https://github.com/HighTechHarmony/cordova-plugin-ble-central

cordova clean android

cordova build android



Comments

Post a Comment

Popular posts from this blog

Reaper, Linux, and the Behringer X-Air - Complete Studio Solution, Part 1

Introduction and Rationale This is part one of a major effort to document my experiences with recreating my home studio, entirely using Linux.  Without getting into too many of the specifics, a few months ago I decided that I was unhappy with Windows' shenanigans - to the point that I was ready to make a serious attempt to leave it behind.  For most in this situation, the obvious choice is to switch to Mac OS.  With its proven track record, support, and options for multimedia production, it is naturally the first alternative to consider if your goal is to simply use something other than Windows. For me the choice was not so simple. I despise Mac OS and, in general, the goals and philosophies put forth by Apple in an effort to ostensibly provide users with an "easy" working environment.  It does not help that I have also failed to find any aspect of the Mac OS UI intuitive, but I realize that this is a subjective matter. With my IT background and user-control* favori
Post a Comment
Read more

Timbaland rips off a Demoscene artist

I knew this day would come. The new Timbaland/Nelly Furtado song "Do It" uses a song made in 2000 by Finnish demoscene artist "Tempest" (Janne Suni). It's a 4 channel .mod (the ripoff is from a playback using the C64 SID soundchip). The song was hosted on scene.org's servers (the main repository for all everyones demos and tracked music, etc.). As you might expect, no permission or royalties were paid to Tempest. Just to clarify, we're not talking about some kind of coincidence here. There is no question that this track was used to create the song "Do It". In an interview, Timbaland tries to downplay it, saying things like "he sampled it from a video game". (This track was not written for a video game- it was actually written for the 2000 demoscene music competition, in which it won 1st place). Regardless, he basically claims he has no legal obligations because it's just like all the other pop artists that sample other m
1 comment
Read more

The Hellscape that is Google’s Web in 2023

Alternate title: "were we better off in 2015 2007?" Time now for another anti-capitalist, “get off my lawn” posting for all the folks out there who won’t see it anyway, because they don’t read real blogs for the reasons specified in this very article. The web has existed for 30 years now. One would think our ability to access information on it would keep getting better. However, I watch as web search is instead devolving every year, to the point where people are giving up and hoping for the next thing.  While this sounds dire, this kind of behavioral change has historical precedent. Remember running your own mail or web server, or better yet, having a phone that you might actually answer calls to, even if you don’t recognize the caller’s number?  Yes, those ideas are gone too. It's all thanks to the uncontrolled thirst for advertising. Let’s walk through the experience of someone doing a simple Google search for “how to control poison ivy”.  The desired outcome would be
1 comment
Read more