The reason why you see the annoying app resuming screen.

[Makm]

Developers, plz enable Fast App Switching (FAS) in the app's manifest file and recompile it for Windows Phone 8.1.

Microsoft added the feature Fast App Switching to rid us of the annoying app resuming screen. But it seems like many of the developers aren't enabling this feature in their app.

To know more about this plz read this article: Why some Windows Phone apps still waste time refreshing when switching between them — Tech News and Analysis

 

[D M C]

But I see resuming screen on Xbox apps.
Specially Music app.
If WP team itself doesn't implemented FAS so how would you expect from other devs

 

[Makm]

But I see resuming screen on Xbox apps.
Specially Music app.
If WP team itself doesn't implemented FAS so how would you expect from other devs

But the article says that 6 out of 20 apps had FAS enabled...

 

[colinkiama]

Xbox music does have FAS enabled but its not compiled for wp 8.1, its actually made as if it were an 8.0 app. If you keep pressing back until you close the app and check multitasking, its not there but for facebook, calendar and podcasts, they are still in multitasking. The WP team has done everything they could, its the xbox team thats failing, especially with the games app.

 

[salmanahmad]

Xbox music does have FAS enabled but its not compiled for wp 8.1, its actually made as if it were an 8.0 app. If you keep pressing back until you close the app and check multitasking, its not there but for facebook, calendar and podcasts, they are still in multitasking. The WP team has done everything they could, its the xbox team thats failing, especially with the games app.

The Skype app also took quite some time to resume before.

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