Can't create handler inside thread which has not called Looper.prepare() [xamarin]

Question

So i don't actually have a question because i've already solved it, but in case someone else runs into this issue it's always nice to have a neat solution.

And while there is a plentitude of "Can't create handler inside thread which has not called Looper.prepare()" - questions there is none tagged with xamarin. (so theirs is all java and i had 0 matches for "Can't create handler inside thread which has not called Looper.prepare() [xamarin]")

Answer 1

The issue is generated because You tried to do work on UI from other thread. If you want to change UI, Must call UI changes from UI thread.

Xamarin Android:

activity.RunOnUiThread(() =>
{
      // Write your code here         
});

Xamarin IOS:

nsObject.BeginInvokeOnMainThread(() =>
{
     // Write your code here                
});

Xamarin Forms:

Device.BeginInvokeOnMainThread(() =>
{
     // Write your code here
});