void UpdateToolbarBackground(Android.Support.V7.Widget.Toolbar toolbar, Page lastPage, Activity activity, Android.Graphics.Drawables.Drawable defaultBackground)
{
if (string.IsNullOrEmpty(CustomNavigationPage.GetBarBackground(lastPage)) && CustomNavigationPage.GetGradientColors(lastPage) == null)
{
toolbar.SetBackground(defaultBackground);
}
else
{
if (!string.IsNullOrEmpty(CustomNavigationPage.GetBarBackground(lastPage)))
{
toolbar.SetBackgroundResource(this.Context.Resources.GetIdentifier(CustomNavigationPage.GetBarBackground(lastPage), "drawable", Android.App.Application.Context.PackageName));
}
if (CustomNavigationPage.GetGradientColors(lastPage) != null)
{
var colors = CustomNavigationPage.GetGradientColors(lastPage);
var direction = GradientDrawable.Orientation.TopBottom;
switch (CustomNavigationPage.GetGradientDirection(lastPage))
{
case CustomNavigationPage.GradientDirection.BottomToTop:
direction = GradientDrawable.Orientation.BottomTop;
break;
case CustomNavigationPage.GradientDirection.RightToLeft:
direction = GradientDrawable.Orientation.RightLeft;
break;
case CustomNavigationPage.GradientDirection.LeftToRight:
direction = GradientDrawable.Orientation.LeftRight;
break;
}
GradientDrawable gradient = new GradientDrawable(direction, new int[] { colors.Item1.ToAndroid().ToArgb(), colors.Item2.ToAndroid().ToArgb() });
gradient.SetCornerRadius(0f);
if (Android.OS.Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.JellyBean)
{
toolbar.SetBackground(gradient);
}
else
{
toolbar.SetBackgroundDrawable(gradient);
}
}
}
toolbar.Background.SetAlpha((int)(CustomNavigationPage.GetBarBackgroundOpacity(lastPage) * 255));
}
void UpdateToolbar()
{
if (_disposed)
{
return;
}
Context context = Context;
var activity = (FormsAppCompatActivity)context;
AToolbar bar = _toolbar;
ActionBarDrawerToggle toggle = _drawerToggle;
if (bar == null)
{
return;
}
bool isNavigated = NavigationPageController.StackDepth > 1;
bar.NavigationIcon = null;
Page currentPage = Element.CurrentPage;
if (isNavigated)
{
if (toggle != null)
{
toggle.DrawerIndicatorEnabled = false;
toggle.SyncState();
}
if (NavigationPage.GetHasBackButton(currentPage))
{
var icon = new DrawerArrowDrawable(activity.SupportActionBar.ThemedContext);
icon.Progress = 1;
bar.NavigationIcon = icon;
var prevPage = Element.Peek(1);
_defaultNavigationContentDescription = bar.SetNavigationContentDescription(prevPage, _defaultNavigationContentDescription);
}
}
else
{
if (toggle != null && _masterDetailPage != null)
{
toggle.DrawerIndicatorEnabled = _masterDetailPage.ShouldShowToolbarButton();
toggle.SyncState();
}
}
Color tintColor = Element.BarBackgroundColor;
if (Forms.IsLollipopOrNewer)
{
if (tintColor.IsDefault)
{
bar.BackgroundTintMode = null;
}
else
{
bar.BackgroundTintMode = PorterDuff.Mode.Src;
bar.BackgroundTintList = ColorStateList.ValueOf(tintColor.ToAndroid());
}
}
else
{
if (tintColor.IsDefault && _backgroundDrawable != null)
{
bar.SetBackground(_backgroundDrawable);
}
else if (!tintColor.IsDefault)
{
if (_backgroundDrawable == null)
{
_backgroundDrawable = bar.Background;
}
bar.SetBackgroundColor(tintColor.ToAndroid());
}
}
Color textColor = Element.BarTextColor;
if (!textColor.IsDefault)
{
bar.SetTitleTextColor(textColor.ToAndroid().ToArgb());
}
bar.Title = currentPage.Title ?? "";
UpdateTitleIcon();
UpdateTitleView();
}