问题
I'm writing Audio Player for Windows Phone 8.1 (Runtime) and I use IBackgroundTask for audio.
I want to use in-app purchase, but applications crashes on calling
var result = await CurrentAppSimulator.RequestProductPurchaseAsync(ProProductId);
without any exceptions.
This method is called within try-catch block.
It happens when application already start IBackgroundTask by calling for BackgroundMediaPlayer.Current (happens after few seconds after call RequestProductPurchaseAsync).
If I call RequestProductPurchaseAsync after start app without calling BackgroundMediaPlayer.Current, it works normally.
What the reason of this behaviour? There are some ways to solve this problem?
回答1:
I am having the same problem, app just crashes, no exception thrown. Happens with CurrentAppSimulator as well as CurrentApp.
The only solution I came up with was to kill the Backround task
BackgroundMediaPlayer.Shutdown()
before making the IAP. Make sure you also put in a bit of delay after calling shutdown, sometimes the app still crashed without it (but not as often, so I guess there was some delay during the shutdown process)
来源：https://stackoverflow.com/questions/28020233/wp8-1-application-crashes-on-calling-requestproductpurchaseasync