Xamarin.ios UI 冻结

Question

I have a Xamarin.ios application which uses MySql. I want to show a IUActivityIndicatorView while program is trying to get data from MySql database.

I tried the code below and the activity indicator appeared after data load which means the UI is freezing. I searched about background workers in Xamarin.ios but I enden up with nothing.

The code that I have tried:

Task.Run(indicator.StartAnimating);

I tried it without Task.Run as well but the result is the same.

Answer 1

Instead of making the indicator.StartAnimating code line work on another thread, I changed the MySql method's thread by the following code:

new System.Threading.Thread(new System.Threading.ThreadStart(() => {
    InvokeOnMainThread(() => {
      MySqlMethod();
    });
})).Start();