/// <summary>
/// Pop to a specific fragment name
/// </summary>
/// <param name="name">Name.</param>
public void NavigateBackToFragment(string name)
{
// get out fragment we want to navigate to
var fragment = SupportFragmentManager.FindFragmentByTag(name);
// pop everything up to our fragment
RunOnUiThread(() =>
{
_drawerLayout.CloseDrawers();
HideSoftInput();
try
{
SupportFragmentManager.PopBackStackImmediate(name,
(int)PopBackStackFlags.None);
}
catch (Java.Lang.RuntimeException exception)
{
var dict = new Dictionary <string, string>
{
{ "Fragment Name", name }
};
Crashes.TrackError(exception, dict);
}
});
}
public override void ShowRootFragment(Type fragment)
{
GC.Collect();
SupportFragmentManager.PopBackStackImmediate(null,
Android.Support.V4.App.FragmentManager.PopBackStackInclusive);
Show(fragment);
}
/// <summary>
/// Pops to root.
/// </summary>
public void PopToRoot()
{
var count = SupportFragmentManager.BackStackEntryCount;
// if we are already at start return
if (count == 0)
{
return;
}
RunOnUiThread(() =>
{
_drawerLayout.CloseDrawers();
HideSoftInput();
try
{
SupportFragmentManager.PopBackStackImmediate(0,
(int)PopBackStackFlags.Inclusive);
}
catch (Java.Lang.RuntimeException exception)
{
Crashes.TrackError(exception);
}
});
}
public override bool OnOptionsItemSelected(IMenuItem item)
{
if (toggle.DrawerIndicatorEnabled && toggle.OnOptionsItemSelected((Android.Views.IMenuItem)item))
{
return(true);
}
if (item.ItemId == Android.Resource.Id.Home)
{
SupportFragmentManager.PopBackStackImmediate();
return(true);
}
switch (item.ItemId)
{
case (SWAP_MENU):
App.STATE.SwapLanguage();
return(true);
case (PINYIN_MENU):
App.STATE.PinyinToggleParadigm();
return(true);
case (SYNC_MENU):
App.FUNCTIONS.UserSyncDialog(this);
return(true);
case (SETTINGS_MENU):
StartActivity(typeof(SettingsActivity));
return(true);
}
return(base.OnOptionsItemSelected(item));
}
/// <summary>
/// Close Fragment with a specific tag at a specific placeholder
/// </summary>
/// <param name="tag">The tag for the fragment to lookup</param>
/// <param name="contentId">Where you want to close the Fragment</param>
protected virtual void CloseFragment(string tag, int contentId)
{
var frag = SupportFragmentManager.FindFragmentById(contentId);
if (frag == null) return;
SupportFragmentManager.PopBackStackImmediate(tag, 1);
}
public bool OnNavigationItemSelected(IMenuItem item)
{
while (SupportFragmentManager.BackStackEntryCount != 0)
{
SupportFragmentManager.PopBackStackImmediate();
}
switch (item.ItemId)
{
case Resource.Id.navigation_home:
currentF = new MainFlowFragment();
loadFragment(currentF);
return(true);
case Resource.Id.navigation_plus:
currentF = new NewPostFragment();
loadFragment(currentF);
return(true);
case Resource.Id.navigation_profile:
currentF = new ProfileFragment();
loadFragment(currentF);
return(true);
}
return(false);
}
public override void GoBackTo(Type fragment)
{
var name = fragment.Name;
SupportFragmentManager.PopBackStackImmediate(name,
Android.Support.V4.App.FragmentManager.PopBackStackInclusive);
Show(fragment);
}
public override bool OnOptionsItemSelected(IMenuItem item)
{
if (item.ItemId != Resource.Id.home)
{
SupportFragmentManager.PopBackStackImmediate();
UpdateBackButtonVisibility();
}
return(base.OnOptionsItemSelected(item));
}
/// <summary>
/// End the nicotine editing fragment and update the UI.
/// </summary>
public void StopEditNicotine()
{
SupportFragmentManager.PopBackStackImmediate();
var list = SupportFragmentManager.FindFragmentByTag("listFragment") as NicotineListFragment;
if (list != null)
{
list.Reset();
}
}
public void StopEditFlavor()
{
SupportFragmentManager.PopBackStackImmediate();
var fragment = SupportFragmentManager.FindFragmentByTag("listFragment") as FlavorListFragment;
if (fragment != null)
{
fragment.Reset();
}
}
public void onBackPressed()
{
if (SupportFragmentManager.BackStackEntryCount > 0)
{
SupportFragmentManager.PopBackStackImmediate();
}
else
{
base.OnBackPressed();
}
}
private bool HandleHomeButton()
{
if (currentFragmentInfo != null && currentFragmentInfo.IsRoot)
{
DrawerLayout.OpenDrawer(GravityCompat.Start);
}
else
{
SupportFragmentManager.PopBackStackImmediate();
}
return(true);
}
public override bool OnOptionsItemSelected(IMenuItem item)
{
if (ActionBarDrawerToggle.OnOptionsItemSelected(item))
{
return(true);
}
SupportFragmentManager.PopBackStackImmediate();
SetDrawerState(true);
return(false);
}
public override void OnBackPressed()
{
if (SupportFragmentManager.BackStackEntryCount == 1) // landing fragment
{
Finish();
return;
}
SupportFragmentManager.PopBackStackImmediate();
if (SupportFragmentManager.BackStackEntryCount == 1) // landing fragment
{
SupportActionBar.Hide();
}
}
public override void OnBackPressed()
{
if (SupportFragmentManager.BackStackEntryCount > 0)
{
SupportFragmentManager.PopBackStackImmediate();
}
else
{
base.OnBackPressed();
}
UpdateToolbar();
}
void AttachFragment(Android.Support.V4.App.Fragment f)
{
if (f != null)
{
while (SupportFragmentManager.BackStackEntryCount > 0)
{
SupportFragmentManager.PopBackStackImmediate();
}
SupportFragmentManager.BeginTransaction()
.Replace(Resource.Id.mainContent, f)
.Commit();
}
}
public override void OnBackPressed()
{
if (SupportFragmentManager.BackStackEntryCount > 0)
{
SupportFragmentManager.PopBackStackImmediate();
}
else
{
var drawer = FindViewById <DrawerLayout>(Resource.Id.drawer_layout);
drawer.OpenDrawer((int)GravityFlags.Start);
}
UpdateToolbar();
}
public override void OnBackPressed()
{
if (SupportFragmentManager.BackStackEntryCount == 1)
{
Finish();
}
else
{
if (SupportFragmentManager.BackStackEntryCount > 1)
{
SupportFragmentManager.PopBackStackImmediate();
}
}
}
private void ShowLogoutPrompt()
{
new AlertDialog.Builder(this)
.SetPositiveButton("Yes", (sender, args) =>
{
App.Logout();
SupportFragmentManager.PopBackStackImmediate();
Finish();
})
.SetNegativeButton("No", (sender, args) => { })
.SetMessage("Do you want to logout?")
.SetTitle("Logout")
.
Show();
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// Init
SetContentView(Resource.Layout.FragmentContainerActivityLayout);
FragmentContainerId = Resource.Id.fragmentContainer;
// Pop off all fragments
while (SupportFragmentManager?.BackStackEntryCount > 0)
{
SupportFragmentManager?.PopBackStackImmediate();
}
}
public void PopFragmentOverUntil(Type targetType)
{
var existingFragment = GetOverFragment();
if (existingFragment == null)
{
return;
}
if (existingFragment.GetType() == targetType)
{
return;
}
SupportFragmentManager.PopBackStackImmediate();
PopFragmentOverUntil(targetType);
}
public override void OnBackPressed()
{
if (currentFragement != null && currentFragement.OnBackPressed())
{
//Has been handled by fragment
return;
}
if (SupportFragmentManager.BackStackEntryCount == 1)
{
ShowLogoutPrompt();
}
else
{
SupportFragmentManager.PopBackStackImmediate();
}
}
public override void OnBackPressed()
{
if (SupportFragmentManager.BackStackEntryCount >= 1)
{
SupportFragmentManager.PopBackStackImmediate();
if (FragmentCacheConfiguration.EnableOnFragmentPoppedCallback)
{
//NOTE(vvolkgang) this is returning ALL the frags. Should we return only the visible ones?
var currentFragsInfo = GetCurrentCacheableFragmentsInfo();
OnFragmentPopped(currentFragsInfo);
}
return;
}
base.OnBackPressed();
}
public override void OnBackPressed()
{
DrawerLayout drawer = FindViewById <DrawerLayout>(Resource.Id.drawer_layout);
if (drawer.IsDrawerOpen(GravityCompat.Start))
{
drawer.CloseDrawer(GravityCompat.Start);
}
else
{
if (SupportFragmentManager.BackStackEntryCount == 1)
{
SupportFragmentManager.PopBackStackImmediate();
}
base.OnBackPressed();
SetSelectedMenuItem();
}
}
public override bool OnOptionsItemSelected(IMenuItem item)
{
AndroidX.Fragment.App.Fragment existingFragment;
existingFragment = SupportFragmentManager.FindFragmentByTag("CHK");
if (existingFragment != null)
{
SupportFragmentManager.PopBackStackImmediate(existingFragment.Id, 0);
}
existingFragment = SupportFragmentManager.FindFragmentByTag("STS");
if (existingFragment != null)
{
SupportFragmentManager.PopBackStackImmediate(existingFragment.Id, 0);
}
existingFragment = SupportFragmentManager.FindFragmentByTag("ABT");
if (existingFragment != null)
{
SupportFragmentManager.PopBackStackImmediate(existingFragment.Id, 0);
}
AndroidX.Fragment.App.Fragment fragment;
if (item.ItemId == Resource.Id.menu_about)
{
_fragmentTag = "ABT";
fragment = AboutFragment.NewInstance();
SupportActionBar.SetTitle(Resource.String.aboutTitle);
_navigation.Visibility = ViewStates.Gone;
_menu.FindItem(Resource.Id.menu_share).SetVisible(false);
SupportFragmentManager.BeginTransaction().Replace(Resource.Id.content_frame, fragment, _fragmentTag).Commit();
}
if (item.ItemId == Resource.Id.menu_settings)
{
_fragmentTag = "SET";
fragment = SettingsFragment.NewInstance(_settingsService, Container.Resolve <IWorkerService>());
SupportActionBar.SetTitle(Resource.String.settingsTitle);
_navigation.Visibility = ViewStates.Gone;
_menu.FindItem(Resource.Id.menu_share).SetVisible(false);
SupportFragmentManager.BeginTransaction().Replace(Resource.Id.content_frame, fragment, _fragmentTag).Commit();
}
_eventService.OnMenuItemPressedEvent(new MenuItemPressedEventArgs(item.TitleFormatted.ToString(), _fragmentTag));
//_eventService.OnSpareEvent(new EventArgs());
return(base.OnOptionsItemSelected(item));
}
/// <summary>
/// React to the 'select new flavor' action ending.
/// </summary>
/// <param name="newFlavor">The flavor that was selected. May be null.</param>
public void FlavorSelected(Flavor newFlavor)
{
if (newFlavor != null)
{
RecipeItem newItem = new RecipeItem();
newItem.Flavor = newFlavor;
newItem.Percentage = newFlavor.RecommendedPercentage;
//DatabaseHelper helper = new DatabaseHelper(ApplicationContext);
//helper.PutRecipeItem(newItem, ActiveRecipe);
ActiveRecipe.Flavors.Add(newItem);
}
SupportFragmentManager.PopBackStackImmediate();
var list = SupportFragmentManager.FindFragmentByTag("listFragment") as RecipeItemListFragment;
if (list != null)
{
list.Reset();
}
}
// To support using the Fragment Backstack with back press
// Override OnBackPress and have it call this utility method
public void OnBackPressWithFragmentManagement()
{
BackPressed?.Invoke(this, EventArgs.Empty);
if (SupportFragmentManager.BackStackEntryCount > 1)
{
// get the fragment to be popped
SupportFragmentManager.PopBackStackImmediate();
var entry = SupportFragmentManager.GetBackStackEntryAt(SupportFragmentManager.BackStackEntryCount - 1);
var frag = SupportFragmentManager.FindFragmentByTag(entry.Name);
FragmentPoppedOnBack?.Invoke(null, frag);
}
else
{
if (SupportFragmentManager.BackStackEntryCount == 1)
{
SupportFragmentManager.PopBackStackImmediate();
}
base.OnBackPressed();
}
}
/// <summary>
/// Custom navigation handler for Fragments
/// </summary>
/// <param name="viewType">The Type of the view receiving navigation</param>
private void FragmentHandler(Type viewType)
{
RunOnUiThread(() =>
{
var perspective = MXContainer.Instance.Views.GetViewPerspectiveForViewType(viewType);
var mxView = MXContainer.Instance.Views.GetView(perspective);
var view = FindViewById <FrameLayout>(Resource.Id.master_fragment);
if (mxView == null)
{
if (view == null)
{
ReloadDetail = false;
}
var targetFragment = view != null && view.ChildCount < 1 ? Resource.Id.master_fragment : Resource.Id.detail_fragment;
view = FindViewById <FrameLayout>(Resource.Id.detail_fragment);
var transaction = SupportFragmentManager.BeginTransaction();
if (view != null && view.ChildCount > 0 && !ReloadDetail)
{
transaction.SetTransition(Android.Support.V4.App.FragmentTransaction.TransitFragmentOpen);
transaction.AddToBackStack(null);
}
transaction.Replace(targetFragment, (Fragment)Activator.CreateInstance(viewType));
transaction.Commit();
}
else
{
SupportFragmentManager.PopBackStackImmediate(null, Android.Support.V4.App.FragmentManager.PopBackStackInclusive);
if (view != null && !ReloadDetail)
{
var transaction = SupportFragmentManager.BeginTransaction();
transaction.Remove(SupportFragmentManager.FindFragmentById(Resource.Id.detail_fragment));
transaction.Commit();
}
}
ReloadDetail = false;
});
}
private void HandleHomeButton()
{
if (actionBarDrawerToggle.DrawerIndicatorEnabled)
{
drawerLayout.OpenDrawer(Android.Support.V4.View.GravityCompat.Start);
return;
}
actionBarDrawerToggle.DrawerIndicatorEnabled = true;
if (FragmentManager.BackStackEntryCount >= 1)
{
FragmentManager.PopBackStackImmediate();
mainToolBar.Menu.RemoveItem(Resource.Id.menu_card_view);
mainToolBar.Menu.RemoveItem(Resource.Id.menu_grid_view);
mainToolBar.Menu.Clear();
mainToolBar.InflateMenu(Resource.Menu.MainToolBarMenu);
ShowHamurgerIcon();
SupportActionBar.Title = Resources.GetString(Resource.String.app_name);
floatingAddButton.Visibility = ViewStates.Visible;
}
else if (SupportFragmentManager.BackStackEntryCount >= 1)
{
SupportFragmentManager.PopBackStackImmediate();
mainToolBar.Menu.RemoveItem(Resource.Id.menu_card_view);
mainToolBar.Menu.RemoveItem(Resource.Id.menu_grid_view);
mainToolBar.Menu.Clear();
mainToolBar.InflateMenu(Resource.Menu.MainToolBarMenu);
ShowHamurgerIcon();
SupportActionBar.Title = Resources.GetString(Resource.String.app_name);
floatingAddButton.Visibility = ViewStates.Visible;
}
}
private void CallTextFragment(string title, string text)
{
var textFragment = new TextFragment(title, text);
v4FragmentTransaction fragmentTransaction = SupportFragmentManager.BeginTransaction();
fragmentTransaction.Replace(Resource.Id.mainFrameLayout, textFragment);
bool qwerty = SupportFragmentManager.PopBackStackImmediate("TextFragment", 0) ||
(SupportFragmentManager.FindFragmentByTag("TextFragment") == null);
if (qwerty)
{
Log.Info(tag, "true");
SupportFragmentManager.PopBackStack();
fragmentTransaction.AddToBackStack("TextFragment");
}
else
{
Log.Info(tag, "false");
fragmentTransaction.AddToBackStack("TextFragment");
}
fragmentTransaction.Commit();
}
