Selecting a graphic in AGSGraphicsOverlay

NikolayYekimov1

I am trying to migrate from iOS SDK 10.2.5 to 100.0.1 and having some questions. I read migration guide and checked examples on the github and still can't get how to select a graphic. 

First of all, how to specify a selectionSymbol. In 10.2.5 I used to set `AGSGraphicsLayer.selectionSymbol`, the AGSGraphicsOverlay doesn't have such property. It seems that now the layer isn't anymore responsible for graphics selection but still have a method `clearSelection()`.

So it looks like I should use `self.mapView.identify(AGSGraphicsOverlay, ...)` method on map touch and then run graphic.isSelected = true on the results. Is it a correct plan? And still how to specify a selection symbol? Or should I change the graphic.symbol each time?

YueWu1

Hi Nikolay Yekimov,

Based on my test, it looks like in 100.0.0, when you identify the graphic, it doesn't means you selected it.

I use this method to check:

self<SPAN class="punctuation token">.</SPAN>graphicsOverlay<SPAN class="punctuation token">.</SPAN><SPAN class="token function">selectedGraphics</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

And it returns an empty array. So you have to call isSelected = true at this moment.

Here is the screenshot that illustrate the result: