I have made a Windows Phone app (for WP7.1) that uses BackgroundAudio for streaming, nothing too complicated. It was approved and made available for download in the store. However it no longer works, i.e. the app worked in debug+release when run from VS2012, and I assume the .xap I uploaded worked since microsoft approved it (they rejected it once and I was able to reproduce and fix the bugs they reported).
When downloaded the app simply bails on load on WP8 (lumia 820) i.e. flips back to the tiles immediately.
On WP7 (lumia 800) but the playbutton ignores input, however it downloads and displays the playlist, so some kind of functionality+network connection works.
I have tried the basics: installing using the application-deployment tool (app working), running the "Store Test Kit" which reports some slowdowns in the UI animations, but nothing serious (I hope).
Any ideas how to reproduce ".xap approved and downloaded from store but not working" or getting debug info from the phone without VS? Or any other things i can try out?
Every time your app crashes it will be logged and reported on your Windows Phone Dev Center Account. Just go in there and export the details to excel. Get the stack trace and put it in here. Maybe we can help.
The very first thing i can tell you is the opening page has some exceptions and that too it doesn't go well with some phones. Seriously there are concerns when a wp7 app is ported on wp8 device and vice-verse. To the extent of my knowledge there might be some binding issues. make sure you got the binding class to be public. And just as #AMR mentioned go the dev center and export the stacktrace. Try resolving them. Moreover if an app get certifies, it doesn't mean it is completely error free. The tests are limited to very coomon errors only.
Related
I see many samples and videos on how to do firebase for mobile and they call this "multiplatform". However, I don't see much on the desktop. There is one video on firebase flutter Windows by using a web and it seems to work. However, I do not see any tutorials for both mobile and desktop. Firebase would be a great example on syncing between desktop and mobile. We have such an app in development right now. Desktop development is new, but I'm surprised how little there is.
There is a library called firebase_dart, but the documentation seems weak.
The package firedart with the video listed above works in both desktop (linux and android without much modification..
What needed to be modified?
I had difficulty with the button on the very top of the phone, so I
added a sized box.
I had difficulty with debugPrint or print so I
added a Text widget with the results (to string).
That also worked.
Although I would like to not use fluent_ui, it does work for both desktop and mobile. I'm not sure what to do with realtime db, but I think I can make the firedart work for user sync between mobile and desktop.
It would be better if I could get firebase_dart to work.
https://www.youtube.com/watch?v=Tw7L2NkhwPc
I have been developing this app for quite a long time, and have had little or no issues. But when I decided to test it without the debugger attached, it caused problems with the fast app switcher. Whenever I switch the app with fast app switcher (or by pressing Start button), it causes the app to crash.
I am using VS2015 and tried enabling break for all exceptions, but still nothing happens while debugging, so I can't understand what the actual problem is.
Any ideas how can I solve this??
P.S. There seem to be a solution for this in this thread: Fast App Resume crashing on WP8.1 when not attached to debugger, but it is intended for Windows Phone 8 and doesn't match with the 8.1 api. Any similar solutions for WP8.1??
have you tried to implement the NavigationHelpers in your app ?
http://mtaulty.com/CommunityServer/blogs/mike_taultys_blog/archive/2014/05/23/windows-phone-8-1-frame-page-navigationhelper-suspensionmanager.aspx
I think that may help you :)
I have a phonegap application that has some layout problems. I can run the app in browser for the most part, and this usually get me over the line. But with a new design I need to debug the application layout on windows phone 8.
I'm currently looking at weinre but its not showing anything on the desktop when browsing the local server, I have added the link to my application I have cleaned up everything I can think of. Still blank. Any good tuts around the ones I have read just copy and paste the original docs or are not on my same error.
There's a public weinre server available here:
https://the-weinre.herokuapp.com/
You may have better luck with that than with your local server. There's a demo available on that page, give that a try and see if it works on your windows 8 mobile device.
I get "Unable to activate Windows Tailored application" error in Metro app when I'm running it under debugger of Visual Studio 11. I installed Windows 8 x64 Developer Preview on my Dell E6510 laptop.
I googled it and found out many people saying it happens when screen resolution is smaller than 800x600 but it's 1920x1280 in my case.
The app itself contains nothing. It's just empty wizard created application which is nothing but windows with black background.
Any ideas? It seems like very common issue.
The solution was quite bizarre but I figured it out.
It turns out not a single Metro application works under Administrator account including my apps. I'm talking about built-in Administrator account that is disabled by default (but which I enabled).
It gives "Access denied" error so I suspect it's somehow related to the way WinRT COM objects were registered or something like that. Go figure.
I hope somebody from Microsoft is reading this.
Best solution is to wait 2 weeks for the next release. The developer preview is full of fun bugs like this. I've seen this error caused by invalid app.xaml. Double check that you really haven't changed anything. I've also seen this error sometimes resolved by rebooting. Have fun!
I'm using Mobile Safari's cache manifest file to store a multi-page data entry application that is run on an iPod Touch (version 3.1.3) in offline mode. The application writes to the client-side database by way of the persistence.js ORM. This all works fine.
However, I run into the occasional, extremely hard to reproduce problem whereby Safari just seems to forget that the pages are cached. When this happens, the "Cannot Open Page" alert appears, which is the same one that comes up when you attempt to visit a non-cached website with the wi-fi turned off. The only way that I've found to fix this is to reconnect to a wireless signal and visit the site while online, which seems to set the cache straight. This is easy to do when you're in the office, but not so easy to do out in the field.
I'm not trying to reference anything outside of the cached resources, and I've verified that the application is cached by running through the entire site while disconnected, sometimes successfully for days on end. I feel like there's a bug in the OS that messes with the validity of the cache. I'm not necessarily looking for a solution to the problem (but that would be nice), but rather just some confirmation that others have encountered this problem.
Using a cache manifest and lot of troubleshooting, I am able to reliably cache an entire application; Do note that this is a single page app with only a few separate file resources.
As a further enhancement, I have been trying to modify the DOM based on
window.applicationCache status
to inform the user about updates, ie:
tap here to apply update
If that were possible, I could swap the cache
window.applicationCache.swapCache();
Which would allow me to swap in the updated cache and then restart the page to provide a streamlined update mechanism.
Potentially even more streamlined than apps from the apple store.
I suspect that the applicationCache API was hamstrung by Apple to hinder web apps for this very reason. Having said that, I believe the level of support for "html5" APIs on mobile devices is among the most robust in apple's safari.
Following are a few problems I have noticed so far, in no particular order. Please note that this is not a comprehensive list of bugs.
I never get an 'updateready' event; this alert line never runs:
window.applicationCache.addEventListener('updateready', function(e) {
alert('updateready event status=' + window.applicationCache.status );
}, false);
I can not manually check for updates. The following code gives me an exception
try{
window.applicationCache.update();
}catch (err){
alert('exception:\n' + err);
}
It seems that as soon as I start to interact with the cache state at all, the caching stops working. The bugs are fiendishly elusive; pinning down & isolating any one issue can take a lot of time, especially since all this code runs flawlessly on other browsers (chrome).
Now here's a good one:
I suspect that if you pin an app to your home screen, iCloud "backs up" resources and restores them after you run the app for the first time from the home screen. To avoid this issue, you may sometimes have to rename files. I have proven that apple makes discrete backups of obsolete components by
removing them entirely from my app server
deleting the pinned web apps from home screen
clearing all the caches
opening the app url in safari
verify that its the newest version
pin to home
verify that the pinned app the newest version
close it
run again - and its back to the old one, no longer on your server.
Finally, if you run the pinned app while the phone is in airplane mode, iCloud will not be able to restore the obsolete files. This proves that it's coming from over the air.