Windows Service and Windows Phone - wcf

I would like to develop a service to be installed on Windows Phone device (Embedded 8.1 Handheld), in order to send data to the device.
Any idea how to began to face with this?

Related

Windows 8.1 tablet BLE sample

Is there any working Bluetooth Low Energy (BLE) sample for Windows 8.1 tablet?
I can found working sample for Windows phone 8.1 devices. Please help me.
Have you tried this sample? It is able to run on both Windows 8.1 and Windows Phone 8.1. The sample shows how to interact with a Bluetooth LE device- reading, writing, and requesting notifications from the device's Gatt Server.

Porting Windows Phone 8.1 app to UWP

I'm working on a port of my WP 8.1 app to run on tablets, and PCs. I started working on a Windows 10 port, but I realized that it won't run on Windows Phone 8.1 devices. As far as I know the other way was to create a Universal 8.1 app, but that would mean to redesign most of my pages, there would be a bunch of API and control incompatibility with WP and Windows 8.1. (Pivot control does not exist in Windows 8.1). That's why I chose the easier way to port to UWP. The question is: can I upload a Windows Phone 8.1 package, and a Windows 10 package (only PC and tablet device families targeted) to the same app in dev center? So both mobile and PCs, tablets are supported.
Yes, you can upload (say) a Windows Phone 7 Silverlight package, and a Windows 10 universal package. Devices will get the highest version numbered package that will work for their device

Handling background data Transfer on windows phone 8.1

I am new to windows phone OS development and I want to implement a background data transfer on windows phone 8.1 and I want to do it even after app is running in background. On windows 8 there is an Windows.Networking.BackgroundTransfer API but what about windows phone OS. Thanks.
Windows.Networking.BackgroundTransfer is in fact supported on windows phone 8.1, here is the sample code : http://code.msdn.microsoft.com/windowsapps/Background-Transfer-Sample-d7833f61
But if you want to maintain windows phone 8 support you can use BackgroundTransferService instead. Sample code for it can be found here : http://msdn.microsoft.com/en-us/library/windows/apps/hh202959(v=vs.105).aspx

Deploy wp8 application on a wp7 smartphone

I have a windows smartphone , version 7.10. can i deploy it for applications developed with the wp8 sdk and will these applications work without any problems on wp8?
Since WP 8 and windows 8 will share common core, I think that we can say that such deployment will be possible with maybe minor tweaks regarding device resolution. Maybe you can think that you can use snapped view on tablet as a UI for phone.
It's not clear why you are referring to WP7, but Windows Phone 8 apps will not run on any Windows Phone 7.x device.
The biggest thing today is that Windows Phone 8 has a shared common
core with Windows 8," said Windows Phone Manager Joe Belfiore at the
Windows Phone Summit in San Francisco, which was webcast. "For us,
this is a huge release and a huge year.

Developing for WP8 with only WP7 device?

I don't understand from today's WP8 event: will I be able to develop apps working on both 7.5 and 8, having only one 7.5 (7.8) device for testing?
I don't like WP emulator, even though it's better than iOS/Android ones. I know that in Visual Studio 2012 it will become even better. But still!
Current devices running Windows Phone 7.X will be able to be upgraded to Windows Phone 7.8 but not Windows Phone 8.
If you want to use a feature that is specific to WP8 you'll either have to wait for hardware or use the eumlator (when available).
I don't like WP emulator
But you should. The emulator for Windows Phone 8 is a full featured Hyper-V emulator, that can even run unmanaged code.
As pointed out by Matt, you'll not be able to do any deployment of Windows Phone 8 apps to your Windows Phone 7 device, and as such you'll need a new device, or use the emulator.
And as the SDK is likely to be released before any devices, I'll strongly encourage you to do development in the emulator until the real devices are on the market.
You'll have to use Windows Phone 8 emulator, or cross your fingers that the equivalent to XDA-Developers for Windows Phone roots your model of phone and is able to get Windows 8 working(hint: unlikely)
The Windows Phone 8 emulator is really very nice though. The only big troubling thing about it is that it requires hardware Hyper-V support and Windows 8. This means you can't run the phone emulator inside of most virtualization technologies. However, I've been using VMWare 9 which appears to include an "unsupported" feature to allow Hyper-V to work though.. So your only choice for running the phone emulator is to either buy VMWare 9 or upgrade a physical machine to Windows 8