How do you activate a ARCGIS layer with a button?

[AidanAumell]

I am having trouble activating an ArcGIS layer with a button game object. 

I want the user to click on a button to activate an ArcGIS layer and make it visible. However, I cannot drag the ARCGIS layer on to the button component function. I have tried producing some code for the interaction, but no lucky yet. Does anyone know how to do this? Thanks  

[and1]

You can simply replace the service URL with your local file path such as "C:\\Data\\Mylayer.slpk"

[AidanAumell]

Thanks! The script works, but it cannot be used twice. I want the script to to show and hide differnet maps on different buttons.  It crashes my Unity Project if I use it twice.

[AidanAumell]

Like a tile package from a file on your local computer

[AidanAumell]

When I delete line 138 I get this error message.

[and1]

That's strange you are having that error, it should have that namespace though. Is the SDK installed properly along with the sample packages?

I just tried to create a brand new scene and threw the same script there, I had no errors and everything was running fine.

On a side note, I'd also recommend you to have a read on the API tutorial to understand the detail step of the code I shared.

https://developers.arcgis.com/unity/maps/tutorials/display-a-map-api/

[AidanAumell]

I just got it to work! Thank you so much for your help.

The issue was I had an old ArcGIS Unity Plugin installed. I created a new scene with the most up to date ArcGIS Plugin.  

[AidanAumell]

This script does not work if you want to use it on more than one button.

[and1]

You can just add another button onclick event to the script if you want to add another button.

[AidanAumell]

Unfortanely, that does not work. 

Simply adding another button in the script as show below. Results in ArcGIS blanking out. No error message is shown,  the plugin just stops working after I add a second.  

public Button addBtn;
public Button addBtn2;

addBtn.onClick.AddListener(delegate { map.Layers.Add(layer_1); });

addBtn2.onClick.AddListener(delegate { map.Layers.Add(layer_2); });