Can i have a sample for RefreshIndicator?

[kou-yeung]

I use RefreshIndicator to make a "Pull to refresh".

When i download data from server and call "resolve"

Window.instance.run(() => this.ResolveSync()); will show error "Window.instance == null"

sample code for RefreshIndicator.onRefresh new RefreshIndicator ( onRefresh: RefreshList )

Promise RefreshList() { return new Promise((resolve, reject) => { using (var client = new WebClient()) { client.DownloadStringCompleted += (str, err) => { resolve(); }; client.DownloadStringAsync(new Uri("xxx"), null); } }); }

[zhuxingwei]

Hi, since you are using an async call to update the UI, your have to find the target window before calling Window.instance.run. You can solve this problem by surrounding Window.instance.run(..) with a getScope call, Please read this section https://github.com/UnityTech/UIWidgets#using-window-scope for the details.

[kou-yeung]

thanks~