private async Task <bool> NavingFromAsync(Portable.INavigatingAwareAsync viewmodel, Page page, object currentParameter, bool suspending, NavigationMode navigationMode, Type targetPageType, object targetParameter)
{
var deferral = new Template10.Mobile.Common.DeferralManager();
var navigatingEventArgs = new Portable.NavigatingEventArgs(deferral)
{
Page = page,
Parameter = currentParameter,
Suspending = suspending,
NavigationMode = navigationMode.ToTemplate10NavigationMode(),
TargetPageType = targetPageType,
TargetPageParameter = targetParameter,
};
try
{
await viewmodel.OnNavigatingFromAsync(navigatingEventArgs);
await deferral.WaitForDeferralsAsync();
}
catch
{
Debugger.Break();
}
return(navigatingEventArgs.Cancel);
}
public bool RaiseNavigatingCancels(object page, object parameter, bool suspending, Portable.NavigationMode mode, Type targetType)
{
var navigatingDeferral = new Template10.Mobile.Common.DeferralManager();
var navigatingEventArgs = new Portable.NavigatingEventArgs(navigatingDeferral)
{
Page = page,
Parameter = parameter,
Suspending = suspending,
NavigationMode = mode,
TargetPageType = targetType,
TargetPageParameter = parameter,
};
RaiseNavigating(navigatingEventArgs);
return(navigatingEventArgs.Cancel);
}
