Compass Navigation With ArcGIS SDK for iOS

Question

There's a sample provided by esri named GpsSample (I can't find a way to upload it here)

Anyway, the sample includes multiple selections for mapview's locationDisplay autoPanMode property

I'm trying to implement it in a similar way, my code is the same, difference is I'm creating the UI controls dynamically (mapview included) without relying on static XIBs

Debugging the code, the autoPanMode property for the map changes correctly but the mapview still wouldn't be automatically rotated like in the provided sample

Finally, I set mapview's allowRotatingByPinching to YES, the map and attached compass image are rotating correctly via pinching. But still wouldn't automatically rotate itself.

Answer 1

Try setting the autoPanMode property to either AGSLocationDisplayAutoPanModeNavigation or AGSLocationDisplayAutoPanModeCompassNavigation because, according to the docs, those should rotate the map.

Also beware that panning or zooming the map will turn off autoPanMode.

Answer 2

I found out what was wrong

I set locationDisplay.dataSource.Delegate to self, and it was causing all these issues

Using the locationDisplayDataSourceDelegate methods, I was receiving location and heading updates without any trouble. Yet it appears that I also had to implement a way to draw the symbol and handle the map view responses to the autoPanMode

I think it'll be easier to keep it this way and create another location manager instance to receive location data.