1.异步执行,不会阻塞当前线程
public CompassCalibrationTopIndicatorView()
{
InitializeComponent();
BindingContext = Ioc.ViewModelLocator.GetViewModel<CompassCalibrationTopInicatorViewModel>();
Task.Run(async () =>
{
await Task.Delay(3000);
Device.BeginInvokeOnMainThread(() =>
{
Button1.Status = EHButtonStatus.Selected;
});
});
}
2. 同步等待,当前线程会等三秒完后继续往下执行
var task = Task.Delay(3000);
task.Wait();
Button1.Status = EHButtonStatus.Selected;
3. 异步,不阻塞当前线程的执行,
Task.Delay(3000).ContinueWith((b) =>
{
Device.BeginInvokeOnMainThread(() =>
{
TriangleImage.TranslateTo(viewModel.UiModel.IndicatorWidth * 0.5, 0);
});
});
4. await实现延迟操作
protected override void OnAppearing()
{
base.OnAppearing();
HidePopup();
}
private async void HidePopup()
{
await Task.Delay(4000);
await PopupNavigation.RemovePageAsync(this);
}
连续嵌套延迟
Task.Delay(2000).ContinueWith(_ =>
{
//do something
}).ContinueWith(async _ =>
{
await Task.Delay(2000);
//do something
});
