PullToRefresh Events in Xamarin Pull To Refresh (SfPullToRefresh)

17 May 20212 minutes to read

There are three built-in events in the PullToRefresh control namely:

1. Pulling
2. Refreshing
3. Refreshed

The Pulling event will be notified whenever the swipe gesture is started. This event will notify the listener each and every time until the refresh content height exceeds. When we release the gesture from pullable content, Refreshing event will be triggered. Now the refresh operation can be performed. Once the content is refreshed, we should set SfPullToRefresh.IsRefreshing to false to stop the animation. Once the animation is stopped the Refreshed event will be triggered to notify that the refreshing is completed.

Pulling

Pulling event is triggered whenever you start pulling down on the PullableContent with PullingEventArgs that contains the following properties

• Cancel - You can cancel the pulling action based on the Progress value.
• Progress - Gets the progress completion value.

XAML

<syncfusion:SfPullToRefresh x:Name="pullToRefresh" PullingEvent="PullToRefresh_Pulling" />

C#

pullToRefresh.Pulling += PullToRefresh_Pulling;

  private void PullToRefresh_Pulling(object sender, PullingEventArgs args)
  {
    args.Cancel = false;
    var progress = args.Progress;
  }

Refreshing

Refreshing event is triggered once pointer is released. This event will occur till the IsRefreshing property is set as false.

XAML

<syncfusion:SfPullToRefresh x:Name="pullToRefresh" Refreshing="PullToRefresh_Refreshing" />

C#

pullToRefresh.Refreshing += PullToRefresh_Refreshing;
   
    private async void PullToRefresh_Refreshing(object sender, EventArgs args)
    {
        pullToRefresh.IsRefreshing = true;
        await Task.Delay(2000);
        pullToRefresh.IsRefreshing = false;
    }

Refreshed

Refreshed event is triggered once the Refreshing event is completed.

XAML

<syncfusion:SfPullToRefresh x:Name=" pullToRefresh" Refreshed="PullToRefresh_Refreshed" />

C#

pullToRefresh.Refreshed += PullToRefresh_Refreshed;
    private void PullToRefresh_Refreshed(object sender , EventArgs args)
    {
        
    }