feat(wifi_iot): proper response to methods when using LocalOnlyHostspot

[PoloLacoste]

fix #134

[daadu]

@PoloLacoste Thanks for the contribution.

I haven't reviewed and tested it properly, but can you also make necessary changes in plugin README as well.

I think this features are for >=29? right? while the "hidden AP" API is used only for <=26 - therefore for 27-28 version - there is no API for get these details? right?

[daadu]

• need to fix formatting, with - melos run format
• revert the version bump - will bump before release

[PoloLacoste]

On this link the documentation says its only from API level >= 30 and up.
However we can still use getWifiConfiguration from the LocalOnlyHotspotReservation until API 29.

[PoloLacoste]

Yes, to get if the SSID is hidden there is no API to get this information for API 27 to 29 :/
The method getWifiConfiguration returning the object WifiConfiguration doesn't contain any information related to the visibility of the LocalOnlyHotspot.

[daadu]

Can we pollyfill getWiFiAPState as well? - that returns one of these 3 - WIFI_AP_STATE_DISABLED, WIFI_AP_STATE_ENABLED, WIFI_AP_STATE_FAILED (failed if the last attempted setWiFiAPEnabled(true) failed - we can cache these in some var in LocalOnlyHotspotCallback.onFailed callback - reset these var back before new attempt to start AP)

[daadu]

@PoloLacoste I have reviewed the PR, Thanks for the contribution.

I have a few ideas (mentioned above) that could still improve it, let me know what you think. It would be great if included in this PR or if you are done/tired with this then I could create feature request issues regarding it so that could be picked up in future. Just let me know - waiting for your response!

Regards.

[daadu]

@PoloLacoste add null check for apReservation.getWifiConfiguration() (all places), and return appropriate error.

Returns the WifiConfiguration of the current Local Only Hotspot (LOHS). May be null if hotspot enabled and security type is not WifiConfiguration.KeyMgmt.None or WifiConfiguration.KeyMgmt.WPA2_PSK.

[daadu]

@PoloLacoste Can you fix the build fail in CI

[daadu]

LGTM.

[daadu]

@PoloLacoste Thanks for your contribution on it.