/// <summary>
/// 旋转动画（新开一个线程）
/// </summary>
/// <returns></returns>
private async Task StartRotationAnimation()
{
var centerX = (float)(RefreshIcon.ActualWidth / 2);
var centerY = (float)(RefreshIcon.ActualHeight / 2);
await Task.Run(async() =>
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async() =>
{
while (_isRefreshing)
{
await RefreshIcon.Rotate(_rotationDegree, centerX, centerY, 1000, 0, EasingType.Linear)
.StartAsync();
_rotationDegree += 360;
}
});
});
}
