public static async Task <Exception> BusyTask(this IBusy busy, Func <Task> task, string busyMessage = null, bool alertOnException = true)
{
Debug.AssertNotNull(busy);
Debug.AssertNotNull(task);
if (busy.IsBusy)
{
//Debug.Fail("BusyTask called with other BusyTask in progress");
return(null);
}
busy.StartBusy(busyMessage);
try {
await task();
return(null);
}
catch (Exception exc) {
Debug.ExceptionCaught(exc);
if (alertOnException)
{
await Alerts.ExceptionAlert(exc);
}
return(exc);
}
finally {
busy.EndBusy();
}
}
public static async Task <Exception> BusyTask(this IBusy busy, Action action, string busyMessage = null, bool alertOnException = true)
{
Debug.AssertNotNull(busy);
Debug.AssertNotNull(action);
if (busy.IsBusy)
{
//Debug.Fail("Can not perfotm another busy task while in busy state");
return(null);
}
busy.StartBusy(busyMessage);
try {
action();
return(null);
}
catch (Exception exc) {
Debug.ExceptionCaught(exc);
if (alertOnException)
{
await Alerts.ExceptionAlert(exc);
}
return(exc);
}
finally {
busy.EndBusy();
}
}