topic Re: AGSLayerViewState State 6 in ArcGIS Runtime SDK for iOS Questions

AGSLayerViewState State 6

marius — Fri, 03 Dec 2021 00:04:14 GMT

Hello,

It seems that somehow the AGSLayerViewState is set to 6.

We already handle active/notVisible/outOfScale/loading/error/warning (0 to 5).

I've checked the documentation https://developers.arcgis.com/ios/api-reference/_a_g_s_layer_view_state_8h.html#ae64e23b127ffb327986163f4b522cdfe and there are no other options.

Do you have any ideas what would that mean?

Thank you

Re: AGSLayerViewState State 6

Ting — Fri, 03 Dec 2021 01:24:39 GMT

We already handle active/notVisible/outOfScale/loading/error/warning (0 to 5)

Actually they are not 0 to 5, but 1, 2, 4, 8, 16 and 32 (1 << 0 to 1 << 5).

The raw values of AGSLayerViewState are NS_OPTIONS, or OptionSet, which allows multiple options/states to be returned at the same time.

It seems that somehow the AGSLayerViewState is set to 6.

Consider this snippet

let states: [AGSLayerViewStatus] = [.active, .notVisible, .outOfScale, .loading, .error, .warning] states.forEach { state in print(state.rawValue) } // 1, 2, 4, 8, 16, 32 print(AGSLayerViewStatus.notVisible.rawValue | AGSLayerViewStatus.outOfScale.rawValue) // 6

When there are multiple states involved, you'll see a combination of values.

Re: AGSLayerViewState State 6

marius — Fri, 03 Dec 2021 02:27:38 GMT

Thanks for clarifying that. I've handled them as "switch:", hence the error.

I'll convert it to the example code.