void RootPush(Page newPage, NavigationPushInfo pushInfo = null)
{
try
{
var navPage = new NavigationPage(newPage)
{
BarTextColor = Colors.White,
BarBackgroundColor = Color.Goldenrod
};
Xamarin.Forms.PlatformConfiguration.iOSSpecific.NavigationPage.SetIsNavigationBarTranslucent(navPage, false);
Xamarin.Forms.PlatformConfiguration.iOSSpecific.NavigationPage.SetHideNavigationBarSeparator(navPage, true);
if (Application.Current.MainPage == null && newPage is ContentPage)
{
Device.BeginInvokeOnMainThread(() => Application.Current.MainPage = navPage);
}
else if (newPage is TabbedPage tp)
{
Application.Current.MainPage = navPage;
pushInfo?.OnCompletedTask?.SetResult(true);
}
}
catch (Exception e)
{
Console.WriteLine(e);
pushInfo?.OnCompletedTask?.SetResult(false);
}
finally
{
_isBusy = false;
}
}
void ModalPush(Page newPage, NavigationPushInfo pushInfo)
{
Device.BeginInvokeOnMainThread(async() => {
try
{
if (pushInfo.NewNavigationStack)
{
await GetTopNavigation().PopToRootAsync(pushInfo.WithAnimtation);
newPage = new NavigationPage(newPage)
{
BarTextColor = Color.White
};
await Task.Delay(10);
Application.Current.MainPage = newPage;
}
else
{
await GetTopNavigation().PushModalAsync(newPage, pushInfo.WithAnimtation);
}
pushInfo.OnCompletedTask.SetResult(true);
}
catch (Exception ex)
{
pushInfo.OnCompletedTask.SetResult(false);
Debug.WriteLine(ex);
}
finally
{
_isBusy = false;
}
});
}
void Push(NavigationPushInfo pushInfo)
{
var newPage = GetInitializedPage(pushInfo);
switch (pushInfo.Mode)
{
case NavigationMode.Normal:
NormalPush(newPage, pushInfo);
break;
case NavigationMode.Modal:
ModalPush(newPage, pushInfo);
break;
case NavigationMode.RootPage:
RootPush(newPage, pushInfo);
break;
case NavigationMode.Popup:
PopupPush(newPage, pushInfo);
break;
default:
throw new NotImplementedException();
}
}
void NavigationPushCallback(MessageBus bus, NavigationPushInfo navigationPushInfo)
{
if (navigationPushInfo == null)
{
throw new ArgumentNullException(nameof(navigationPushInfo));
}
if (string.IsNullOrEmpty(navigationPushInfo.To))
{
throw new FieldAccessException(@"'To' page value should be set");
}
if (_isBusy)
{
return;
}
_isBusy = true;
Push(navigationPushInfo);
}
void NormalPush(Page newPage, NavigationPushInfo pushInfo)
{
Device.BeginInvokeOnMainThread(async() => {
try
{
await GetTopNavigation().PushAsync(newPage, pushInfo.WithAnimtation);
pushInfo.OnCompletedTask.SetResult(true);
}
catch (Exception ex)
{
Debug.WriteLine(ex);
pushInfo.OnCompletedTask.SetResult(false);
}
finally
{
_isBusy = false;
}
});
}
void PopupPush(Page newPage, NavigationPushInfo pushInfo)
{
Device.BeginInvokeOnMainThread(async() => {
try
{
var nav = PopupNavigation.Instance;
var page = (PopupPage)newPage;
await nav.PushAsync(page, pushInfo.WithAnimtation);
pushInfo.OnCompletedTask.SetResult(true);
}
catch
{
pushInfo.OnCompletedTask.SetResult(false);
}
finally
{
_isBusy = false;
}
});
}
Page GetInitializedPage(NavigationPushInfo navigationPushInfo)
{
return(GetInitializedPage(navigationPushInfo.To, navigationPushInfo.NavigationParams));
}
