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mapzen / ios

Where you can find everything iOS from Mapzen
https://mapzen.com/projects/mobile/
Apache License 2.0
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gpus_ReturnNotPermittedKillClient error occuring in iOS background-aware applications #378

Closed msmollin closed 6 years ago

msmollin commented 6 years ago

We received some feedback in the Mapzen iOS SDK causing crashes for applications going into the background. This seems to stem from GLKitViewController not pausing its rendering (like I thought it did) when going into and out of background. On reflection this does make some sense as it would be silly for Apple to assume it knows the state of the render pipeline.

To resolve this, we should follow the guidelines outlined in https://developer.apple.com/library/content/documentation/3DDrawing/Conceptual/OpenGLES_ProgrammingGuide/ImplementingaMultitasking-awareOpenGLESApplication/ImplementingaMultitasking-awareOpenGLESApplication.html#//apple_ref/doc/uid/TP40008793-CH5-SW1

https://github.com/tangrams/tangram-es/issues/1708 has been opened in the upstream Tangram-es repo as that is probably the correct place to implement this. However, we can probably implement something in the iOS-SDK sooner if necessary.

msmollin commented 6 years ago

After discussion we'll implement a fix for this in the iOS SDK and then when Tangram-es 0.9 lands, we will revert this fix for the more permanent fix.