protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.activity_main);
SupportActionBar.SetDisplayHomeAsUpEnabled(true);
indicator = new DrawerArrowDrawable(this);
indicator.Color = Color.White;
SupportActionBar.SetHomeAsUpIndicator(indicator);
SetTransformer();
// setListener();
drawerLayout = FindViewById <DrawerLayout>(Resource.Id.drawerLayout);
drawerLayout.SetScrimColor(Color.Transparent);
drawerLayout.AddDrawerListener(this);
}
void UpdateToolbar()
{
if (_disposed)
{
return;
}
Context context = 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 (NavigationPage.GetHasBackButton(currentPage))
{
if (toggle != null)
{
toggle.DrawerIndicatorEnabled = false;
toggle.SyncState();
}
var icon = new DrawerArrowDrawable(context.GetThemedContext());
icon.Progress = 1;
bar.NavigationIcon = icon;
var prevPage = Element.Peek(1);
var backButtonTitle = NavigationPage.GetBackButtonTitle(prevPage);
_defaultNavigationContentDescription = backButtonTitle != null
? bar.SetNavigationContentDescription(prevPage, backButtonTitle)
: bar.SetNavigationContentDescription(prevPage, _defaultNavigationContentDescription);
}
else if (toggle != null && _flyoutPage != null)
{
toggle.DrawerIndicatorEnabled = _flyoutPage.ShouldShowToolbarButton();
toggle.SyncState();
}
}
else
{
if (toggle != null && _flyoutPage != null)
{
toggle.DrawerIndicatorEnabled = _flyoutPage.ShouldShowToolbarButton();
toggle.SyncState();
}
}
Color tintColor = Element.BarBackgroundColor;
if (tintColor == null)
{
bar.BackgroundTintMode = null;
}
else
{
bar.BackgroundTintMode = PorterDuff.Mode.Src;
bar.BackgroundTintList = ColorStateList.ValueOf(tintColor.ToAndroid());
}
Brush barBackground = Element.BarBackground;
bar.UpdateBackground(barBackground);
Color textColor = Element.BarTextColor;
if (textColor != null)
{
bar.SetTitleTextColor(textColor.ToAndroid().ToArgb());
}
Color navIconColor = NavigationPage.GetIconColor(Current);
if (navIconColor != null && bar.NavigationIcon != null)
{
bar.NavigationIcon.SetColorFilter(navIconColor, FilterMode.SrcAtop);
}
bar.Title = currentPage?.Title ?? string.Empty;
if (_toolbar.NavigationIcon != null && textColor != null)
{
var icon = _toolbar.NavigationIcon as DrawerArrowDrawable;
if (icon != null)
{
icon.Color = textColor.ToAndroid().ToArgb();
}
}
UpdateTitleIcon();
UpdateTitleView();
}
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();
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
var drawer = FindViewById <DrawerLayout>(Resource.Id.drawer_layout);
var imageView = FindViewById <ImageView>(Resource.Id.drawer_indicator);
_drawerArrowDrawable = new DrawerArrowDrawable(Resources)
{
StrokeColor = Resources.GetColor(Resource.Color.light_gray)
};
imageView.SetImageDrawable(_drawerArrowDrawable);
drawer.DrawerSlide += (sender, args) =>
{
_offset = args.SlideOffset;
if (_offset >= .995)
{
_flipped = true;
_drawerArrowDrawable.Flip = _flipped;
}
else if (_offset <= .005)
{
_flipped = false;
_drawerArrowDrawable.Flip = _flipped;
}
_drawerArrowDrawable.Parameter = _offset;
};
imageView.Click += (sender, args) =>
{
if (drawer.IsDrawerVisible((int)GravityFlags.Start))
{
drawer.CloseDrawer((int)GravityFlags.Start);
}
else
{
drawer.OpenDrawer((int)GravityFlags.Start);
}
};
var styleButton = FindViewById <TextView>(Resource.Id.indicator_style);
var rounded = false;
styleButton.Click += (sender, args) =>
{
styleButton.Text = rounded ? "See Rounded" : "See Squared";
rounded = !rounded;
_drawerArrowDrawable = new DrawerArrowDrawable(Resources, rounded)
{
Parameter = _offset,
Flip = _flipped,
StrokeColor = Resources.GetColor(Resource.Color.light_gray)
};
imageView.SetImageDrawable(_drawerArrowDrawable);
};
}