ExtensibilityApp class in WP 8.1 Silverlight

[jennifercolemanme]

Hi all,

If you've read the text that USED to exist here before, scratch that. Big Thanks for clarifying what I thought was a win. Due to this, I DID find something interesting in regards to the ExtensibilityApp class (Windows.Phone.System.LockscreenExtensibility.Exte nsibilityApp). I happened to also find a hidden capability "ID_CAP_SHELL_DEVICE_LOCK_UI_API" (Seems to be a locked CAP because it only works on Emulator. I get a deployment error on my if I try including this capability). I suspected that these two worked together, but I wanted to make sure of this.

Before we get started, read through the documentation from this site: http://msdn.microsoft.com/en-us/libr...bilityapp.aspx.

We have the following methods:
BeginUnlock
EndUnlock
GetLockPinpadHeight
IsLockScreenApplicationRegistered
IsSystemOverlayApplicationRegistered
RaiseToastNotifications
RegisterLockScreenApplication
RegisterSystemOverlayApplication
UnregisterLockScreenApplication
UnregisterSystemOverlayApplication

As usual, Microsoft doesn't really give us much in terms of documentation.. Probably because it isn't meant to be used by the normal developer.

All of these methods have no parameters at all, but I can almost guarantee this has to do with having an application that can control the lock screen.

This thread will be for efforts in breaking this open and seeing whether we can create lockscreen applications..

 

[Laura Knotek]

Hi and welcome to WPCentral.

I've moved this thread to the Developers Corner forum, since this subject is something that is more relevant to developers than ordinary users.

 

[Expression2]

I've tried this API before. Can't really get it to work cause i don't see any public properties for setting FrameworkElements or anything. Let's just wait for Joe to announce the next update before we try anything

 

[Vitor Salvatore Pierce]

I've tried this API before. Can't really get it to work cause i don't see any public properties for setting FrameworkElements or anything. Let's just wait for Joe to announce the next update before we try anything

In 12400.899 maybe can deploy? I have it, but I couldn't try yet.

 

[sinclairinator]

? This thread is a pure copy and paste from My XDA-Developers thread (ExtensibilityApp class in WP 8.1 Silverlight | Windows Phone 8 | XDA Forum). Anyway, I added more information to it

 

[Vitor Salvatore Pierce]

? This thread is a pure copy and paste from My XDA-Developers thread (ExtensibilityApp class in WP 8.1 Silverlight | Windows Phone 8 | XDA Forum). Anyway, I added more information to it

I can't post there, yet. :[

 

[sinclairinator]

You won't be able to deploy. ID_CAP_SHELL_DEVICE_LOCK_UI_API is restricted at the moment. In terms of FrameworkElements, you're close there. It actually uses a Silverlight app as the LockApp. I was able to deploy test code to the Emulator using that capability, BUT the emulator doesn't contain all of the necessary files in order to actually allow you to run the app

 

[Vitor Salvatore Pierce]

I look to the code of the app (that trick of SD Card) ...
Here's the manifest...
<Capabilities>
<Capability Name="ID_CAP_NETWORKING" />
<Capability Name="ID_CAP_MEDIALIB_AUDIO" />
<Capability Name="ID_CAP_MEDIALIB_PLAYBACK" />
<Capability Name="ID_CAP_SENSORS" />
<Capability Name="ID_CAP_WEBBROWSERCOMPONENT" />
<Capability Name="ID_CAP_PUSH_NOTIFICATION" />
<Capability Name="ID_CAP_SHELL_DEVICE_LOCK_UI_API" />
</Capabilities>

And in the end:
<InProcessServer>
<Path>Nokia.InteropServices.WindowsRuntime.dll</Path>
<ActivatableClass ActivatableClassId="Nokia.InteropServices.WindowsRuntime.BufferFactory" ThreadingModel="both" />
</InProcessServer>

PS: Microsoft has corrected the bug to view the apps from the SD card with the update 12400.899.
I'm with my brother's phone in 895

 

[sinclairinator]

I look to the code of the app (that trick of SD Card) ...
Here's the manifest...
<Capabilities>
<Capability Name="ID_CAP_NETWORKING" />
<Capability Name="ID_CAP_MEDIALIB_AUDIO" />
<Capability Name="ID_CAP_MEDIALIB_PLAYBACK" />
<Capability Name="ID_CAP_SENSORS" />
<Capability Name="ID_CAP_WEBBROWSERCOMPONENT" />
<Capability Name="ID_CAP_PUSH_NOTIFICATION" />
<Capability Name="ID_CAP_SHELL_DEVICE_LOCK_UI_API" />
</Capabilities>

And in the end:
<InProcessServer>
<Path>Nokia.InteropServices.WindowsRuntime.dll</Path>
<ActivatableClass ActivatableClassId="Nokia.InteropServices.WindowsRuntime.BufferFactory" ThreadingModel="both" />
</InProcessServer>

PS: Microsoft has corrected the bug to view the apps from the SD card with the update 12400.899.
I'm with my brother's phone in 895

No wonder I wasn't able to use the SD Card trick. I tried it out AFTER I had .899 .

Yeah, I already have the binary for the live lock app. Looking through it confirmed everything I put in the post.

 

[Vitor Salvatore Pierce]

No wonder I wasn't able to use the SD Card trick. I tried it out AFTER I had .899 .

Yeah, I already have the binary for the live lock app. Looking through it confirmed everything I put in the post.

I think that, for know, is just for app from store. Maybe GDR1 with a update on VS?

 

[sinclairinator]

I think that, for know, is just for app from store. Maybe GDR1 with a update on VS?

We can only hope.

 

[sinclairinator]

forum.xda-developers.com/windows-phone-8/development/xap-lockscreen-app-t2837016/

One of our guys made an app using the APIs. Check it out.