async calls in LoadState blocking the UI Thread

Question

In my Windows 8app i am overriding Page´s LoadState setting it async and use it to download and parse data in a Task i await. Afterwards i bind these data to a GridView.

Although my processing should be running async all ui is blocked during my processing on that Task.

public class Example
    {
        // ...
        protected override async void LoadState( . . . )
        {
            await Task.Run(() => downloadAndParseData());
            // Update the UI with results
        }

        private async Task downloadAndParseData()
        {
            // ...
        }
        // ...
    }

Has anyone an idea why that is and how i may be able to fix it?

Answer 1

I used SQLite library and didnt made use of its async methods.

Therefore all db operations ended up blocking the ui thread.

I solved my issue by using the provided async methods of SQLite