protected virtual bool TryPerformCloseFragmentTransaction(
FragmentManager fragmentManager,
MvxFragmentPresentationAttribute fragmentAttribute)
{
try
{
var fragmentName = fragmentAttribute.ViewType.FragmentJavaName();
if (fragmentManager.BackStackEntryCount > 0)
{
var popBackStackFragmentName = fragmentAttribute.PopBackStackImmediateName?.Trim() == ""
? fragmentName
: fragmentAttribute.PopBackStackImmediateName;
fragmentManager.PopBackStackImmediate(popBackStackFragmentName, (int)fragmentAttribute.PopBackStackImmediateFlag.ToNativePopBackStackFlags());
OnFragmentPopped(null, null, fragmentAttribute);
return(true);
}
else if (CurrentFragmentManager.FindFragmentByTag(fragmentName) != null)
{
var ft = fragmentManager.BeginTransaction();
var fragment = fragmentManager.FindFragmentByTag(fragmentName);
if (!fragmentAttribute.EnterAnimation.Equals(int.MinValue) && !fragmentAttribute.ExitAnimation.Equals(int.MinValue))
{
if (!fragmentAttribute.PopEnterAnimation.Equals(int.MinValue) && !fragmentAttribute.PopExitAnimation.Equals(int.MinValue))
{
ft.SetCustomAnimations(fragmentAttribute.EnterAnimation, fragmentAttribute.ExitAnimation, fragmentAttribute.PopEnterAnimation, fragmentAttribute.PopExitAnimation);
}
else
{
ft.SetCustomAnimations(fragmentAttribute.EnterAnimation, fragmentAttribute.ExitAnimation);
}
}
if (fragmentAttribute.TransitionStyle != int.MinValue)
{
ft.SetTransitionStyle(fragmentAttribute.TransitionStyle);
}
ft.Remove(fragment);
ft.CommitAllowingStateLoss();
OnFragmentPopped(ft, fragment, fragmentAttribute);
return(true);
}
}
catch (System.Exception ex)
{
MvxLog.Instance.Error("Cannot close fragment transaction", ex);
return(false);
}
return(false);
}
private void PopOnBackstackEntries(
string fragmentName, FragmentManager fragmentManager, MvxFragmentPresentationAttribute fragmentAttribute)
{
var popBackStackFragmentName =
string.IsNullOrEmpty(fragmentAttribute.PopBackStackImmediateName?.Trim())
? fragmentName
: fragmentAttribute.PopBackStackImmediateName;
fragmentManager.PopBackStackImmediate(
popBackStackFragmentName,
(int)fragmentAttribute.PopBackStackImmediateFlag.ToNativePopBackStackFlags());
OnFragmentPopped(null, null, fragmentAttribute);
}
