iOS Device Uptime using Xamarin

Question

I used to use this code to retrieve the iOS uptime using Xamarin's classic API:

var uptime = ObjCRuntime.Messaging.Double_objc_msgSend(NSProcessInfo.ProcessInfo.Handle, 
                                                                  new ObjCRuntime.Selector ("systemUptime").Handle);
var ts = TimeSpan.FromSeconds(uptime);
return ts;

I am trying to convert to the Unified API and now I am getting this build error for the above:-

Error CS0122: `ObjCRuntime.Messaging' is inaccessible due to its protection level (CS0122)

I am not sure how to convert this. Can anyone help?

Thanks in advance

score 2 · Accepted Answer · answered Jul 07 '15 at 02:53

2

The unified api has a ProcessInfo that is shared between iOS and OS-X

So using that with your code/variable names:

var uptime = Foundation.NSProcessInfo.ProcessInfo.SystemUptime;
var ts = TimeSpan.FromSeconds(uptime);
return ts;

answered Jul 07 '15 at 02:53

SushiHangover

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Is this the same behavior as this: https://stackoverflow.com/a/12490414/2304737? – mr5 Feb 07 '20 at 01:44
@mr5 Per the Apple docs: `The amount of time the system has been awake since the last time it was restarted.` – SushiHangover Feb 07 '20 at 06:53

iOS Device Uptime using Xamarin

1 Answers1