How to handle a wp8 and a wp8.1 in the app store - windows-phone-7

A user recently reported a problem in regards to not being able to answer "quizzes" in some of the web pages I display in my app. The first thing that popped to mind was that it could be a bug with my app, a bug with the web browser control or some unreliable CSS & Javascript code provided in the web pages.
After investigating it some more i.e. tried it on my web browser on pc in mobile mode and tried it in the regular browser, I noticed that it worked as expected, so I thought it was fair to assume that it wasn't the web pages that were the problem. So it left my app or the web browser control as potential problem.
My app was originally created as a windows phone app for Windows Phone 8 so it would be compatible with both windows phone 8.0 and windows phone 8.1 but to my surprise, after taking a backup and then converting my app from 8.0 to 8.1 the problem got resolved which means that the bug must be coming from the web control itself rather than in my code.
I don't know how popular these questionaires/quizzes are but so far that seems to be the only thing that's affecting the app in regards to web pages, so what do I do?
Now, to my questions (sorry for the long history!):
Will a WP Silverlight 8.1 app work on both Windows Phone 8.0 and 8.1? Sorry if it's a silly question but I've got to ask. If it will, please ignore the other questions.
Should I leave the app as a Windows Phone 8.0 app as it could be affecting a minority of users that want to answer questionnaires/quizzes?
Upgrade the app to Windows Phone 8.1? Not everyone is on 8.1 or 8.1 preview for developers, so this could be a problem??
Upload 2 different versions? Maybe specifically name them as app 8.0 and app 8.1? Feels odd, no? This would also entail maintaining 2 different versions which is a complete pain or is there a better way to handle this i.e. Linked file in the second project?? I haven't checked yet what's changed between the 2. All I know for now is that once I converted my project from 8.0 to 8.1, it worked.
Is there a way to upload both versions to the store as one app and will Windows Phone download the relevant version?
Thanks

Internet Explorer in Windows Phone 8.1 is newer, this is why it works better.
1) No.
2) No.
3) Yes.
4) Yes. You can link files from the one project to another (use add as link feature in Visual Studio).
5) Yes. Windows Phone store can handle 7.5, 8 and 8.1 version very well.

Related

VB6 apps to Windows Store or AppX?

I have a legacy app not yet ported to .NET created using VB6. I have a high demand from a community with locked down Surface 3 tablets and the only means to install to the tablet is via Windows Store or AppX.
Does anyone know the options available for VB6 desktop applications in this situation?
Thank you
There is no upgrade path for vb6 apps to run in the store that I know of. I think your only option would be to do a rewrite of the app.

Windows 8.1 and Windows 10 API changes issue

I have a full fledged app built for windows 8.1...
Through my research, I discovered that the api changes between 8.1 and 10 is nt that much and an app built for 8.1 will work on 10..
So my question now is will a windows 10 app work on windows 8.1?
If yes, how can I go about it?
I've created a report on changes for WinAPI 8 vs WinAPI 10 that may help you to discover differences in details. It's available on this page. The report is generated with the help of the ABI-CC tool.
Since apps built for WP8.1 don't work on WP8, then I doubt that Windows 10 Mobile apps will work on WP8.1. As far as I'm aware, there are more differences between those two systems' API than between 8.1 and 8.0
Btw, are you asking about the desktop systems or the mobile ones (as the tag you used suggests)?

Windows phone apps on Windows 10

I'm creating apps for windows phone pretty much since the beginning and I was wondering..
Will the Windows Phone apps run on Windows 10 (for Phone) ?
I could not find an answer anywhere and I wonder if the Windows Phone store will just disappear with the new version of Windows.
As Erno said: We don't know yet. But there have been a few clues indeed. I got a newsletter a week ago where Microsoft issued a new challenge on DVLUP that suggests making apps ready for Windows Phone 10 means at least porting them to Windows Phone 8.1:
https://www.dvlup.com/Challenge/c37655f6-1d31-4a67-aa20-dea314a7a03b
Also you can find this statement:
We’re more committed than ever to making sure that you can leverage your work to reach more customers, regardless of where they are, what device type they’re on, or what operating system they’re running. The best way to start preparing for Windows 10 is to start building universal Windows apps today for Windows 8.1.
http://blogs.windows.com/buildingapps/2015/01/22/windows-10-is-empowering-developers-to-dream-again-3/
So with all this in mind Windows 10 seems to drop Silverlight for Windows Runtime (at least they are heavily promoting migrating apps there).
After upgrading my 830 to Windows 10 preview, it seems like even Windows phone 7 apps still work under Windows 10 for phone.
I still wonder how are they going to handle the different stores though.
Anyway, I got my answer.
Wait and see !
Am sure that a Windows Phone 8.1 silver light app would continue to run on Windows 10 Mobile you don't even need to upgrade to Windows 10 OS running Visual Studio 2015 to manage your app on Windows 10 Mobile you can continue to develop with the existing development environment(Windows 8.1 and VS 2013). For the query related to the store please follow the link Get ready for the Unified Dev Center dashboard preview and upcoming Store changes

Application works if installed from PC, but crashes if installed from store (WinPhone 7.5)

I have a project that runs on Windows Phone 8 and Windows Phone 7.5.
It works fine on 8 devices in all cases, but on Windows Phone 7.5 it crashes on startup with following message (only if installed from store):
If the application is built on PC and uploaded to device it works fine. I tried numerous things but nothing helped.
Looks like it was a store issue. Should be resolved now.
Issue with 7.1 XAP submissions between Dec 04 and Dec 12 (Beta and Non-beta apps)
Well, my assumption is that your XAP file does not contains all the DLLs needed. Make sure the references to those DLLs indicate CopyLocal=True. Also it would be nice if you can share the beta link to check your stack traces.
P.S. this may help:
Troubleshooting Windows Phone App Problems that occur after Submitting
Your Windows Phone 7/8 application tests fine, but fails after publishing to Marketplace or after private app distribution
I guess it's a problem with the Async pack binding. You might want to try to remove the package and readd. More below:
Async Targeting Pack troubleshooting
In the past I was able to repro many post certification issues just by run the release version of the app from Visual Studio and simply unplug the cable while it is running. Sure you can't debug it but at least you can repro and test it without submitting it.
Thank you guys for your advice, but error has gone away. I don't do anything, i think that it was something with store...

Unlock Windows Phone 7 emulator

Today I wanted to unlock the WP7 emulator in order to see some more functionalities available like: task manager, accessing isolated storage files and look over default applications like Office, Messaging and others, but I could not make it work ...
I followed the instructions from here but I'm not having the [YourHardDrive]:/Program Files/Microsoft SDKs/WindowsPhone/v7.0/Emulation/Images folder . In [YourHardDrive]:/Program Files/Microsoft SDKs/WindowsPhone/v7.0/Emulation folder I have only the following files:
WM7_Skin.xml
WM7_Skin_Down.png
WM7_Skin_Mask.png
WM7_Skin_Up.png
I looked over others tutorials related to unlock emulator and all of them are pointing to an Image folder - which in my case doesn't exists
Did anyone also faced with this problem?
I am curious: Why Microsoft doesn't provide by default access to an 'unlocked' emulator ?
Thanks.
The instructions you linked to are from a very early pre-beta release of the Windows Phone SDK, over six month before the phone released! So you don't have to wonder why they aren't working anymore.
You may search the XDA forums for an unlocked version of the 7.0 emulator image, but that version isn't up-to-date either. Currently RTM is version 7.1 of the SDK for the so-called "Mango" release of Windows Phone 7.5 - but it's currently not possible to "unlock" the restrictions Microsoft put into that emulator image, either. There are some possibilities to launch some of the internal applications / dialogs with a tool from the 7.1 SDK and their corresponding GUIDs. You may take a look at this and this article for some instructions.
The forums at xda-developers often post unlocked emulators. The one that I recently pulled down is here. It is in Italian but just go into the settings and change it to the language you would like.

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