diff options
Diffstat (limited to 'Xamarin.Forms.Platform.Tizen/Renderers/TabbedPageRenderer.cs')
| -rwxr-xr-x[-rw-r--r--] | Xamarin.Forms.Platform.Tizen/Renderers/TabbedPageRenderer.cs | 144 |
1 files changed, 54 insertions, 90 deletions
diff --git a/Xamarin.Forms.Platform.Tizen/Renderers/TabbedPageRenderer.cs b/Xamarin.Forms.Platform.Tizen/Renderers/TabbedPageRenderer.cs index 34e0235e..d2661197 100644..100755 --- a/Xamarin.Forms.Platform.Tizen/Renderers/TabbedPageRenderer.cs +++ b/Xamarin.Forms.Platform.Tizen/Renderers/TabbedPageRenderer.cs @@ -6,18 +6,15 @@ using EToolbarItem = ElmSharp.ToolbarItem; using EToolbarItemEventArgs = ElmSharp.ToolbarItemEventArgs; using EColor = ElmSharp.Color; using Xamarin.Forms.PlatformConfiguration.TizenSpecific; -using Xamarin.Forms.Internals; namespace Xamarin.Forms.Platform.Tizen { public class TabbedPageRenderer : VisualElementRenderer<TabbedPage>, IVisualElementRenderer { - Box _outterLayout; - Box _innerBox; - Scroller _scroller; + Box _box; Toolbar _toolbar; + EvasObject _content; Dictionary<EToolbarItem, Page> _itemToItemPage = new Dictionary<EToolbarItem, Page>(); - IReadOnlyCollection<Element> Pages => (Element as IElementController).LogicalChildren; public TabbedPageRenderer() { @@ -25,6 +22,7 @@ namespace Xamarin.Forms.Platform.Tizen RegisterPropertyHandler(TabbedPage.TitleProperty, UpdateTitle); //Register for current page change property RegisterPropertyHandler("CurrentPage", CurrentPageChanged); + //TODO renderer should add item on EFL toolbar when new Page is added to TabbedPage RegisterPropertyHandler(TabbedPage.BarBackgroundColorProperty, UpdateBarBackgroundColor); } @@ -33,7 +31,7 @@ namespace Xamarin.Forms.Platform.Tizen if (_toolbar == null) { //Create box that holds toolbar and selected content - _outterLayout = new Box(Forms.Context.MainWindow) + _box = new Box(Forms.Context.MainWindow) { AlignmentX = -1, AlignmentY = -1, @@ -41,9 +39,9 @@ namespace Xamarin.Forms.Platform.Tizen WeightY = 1, IsHorizontal = false, }; - _outterLayout.Show(); + _box.Show(); - //Create toolbar that is placed inside the _outterLayout + //Create toolbar that is placed inside the _box _toolbar = new Toolbar(Forms.Context.MainWindow) { AlignmentX = -1, @@ -53,91 +51,37 @@ namespace Xamarin.Forms.Platform.Tizen if (Device.Idiom == TargetIdiom.Phone) { - //Set ShrinkMode to Expand as defauly only for Mobile profile + //Set ShrinkMode to Expand as default only for Mobile profile _toolbar.ShrinkMode = ToolbarShrinkMode.Expand; } else if (Device.Idiom == TargetIdiom.TV) { - //According to TV UX Guideline, toolbar style should be set to "tabbar_with_title" in case of TabbedPage only for TV profile. + //According to TV UX Guideleine, toolbar style should be set to "tabbar_with_title" in case of TabbedPage _toolbar.Style = "tabbar_with_title"; } _toolbar.Show(); - //Add callback for Toolbar item selection - _toolbar.Selected += OnToolbarItemSelected; - _outterLayout.PackEnd(_toolbar); + //Add callback for item selection + _toolbar.Selected += OnCurrentPageChanged; + _box.PackEnd(_toolbar); - _scroller = new Scroller(_outterLayout) - { - AlignmentX = -1, - AlignmentY = -1, - WeightX = 1, - WeightY = 1, - HorizontalPageScrollLimit = 1, - ScrollBlock = ScrollBlock.Vertical, - HorizontalScrollBarVisiblePolicy = ScrollBarVisiblePolicy.Invisible - }; - _scroller.SetPageSize(1.0, 1.0); - _scroller.PageScrolled += OnItemPageScrolled; - _scroller.Resized += OnScrollerResized; - - _innerBox = new Box(Forms.Context.MainWindow) - { - AlignmentX = -1, - AlignmentY = -1, - WeightX = 1, - WeightY = 1, - IsHorizontal = true, - }; - _scroller.SetContent(_innerBox); - _scroller.Show(); - - _outterLayout.PackEnd(_scroller); - - SetNativeControl(_outterLayout); + SetNativeControl(_box); UpdateTitle(); } base.OnElementChanged(e); } - void OnScrollerResized(object sender, System.EventArgs e) - { - foreach (var item in _itemToItemPage) - { - var nativeView = Platform.GetRenderer(item.Value).NativeView; - nativeView.MinimumWidth = _scroller.Geometry.Width; - nativeView.MinimumHeight = _scroller.Geometry.Height; - } - int index = Pages.IndexOf(_itemToItemPage[_toolbar.SelectedItem]); - _scroller.ScrollTo(index, 0, true); - } - - void OnItemPageScrolled(object sender, System.EventArgs e) - { - Page newPage = Element.GetPageByIndex(_scroller.HorizontalPageIndex); - foreach (var pair in _itemToItemPage) - { - if (pair.Value == newPage) - { - pair.Key.IsSelected = true; - return; - } - } - - } - protected override void Dispose(bool disposing) { - if (_outterLayout != null) + if (_box != null) { - _outterLayout.Unrealize(); - _outterLayout = null; + _box.Unrealize(); + _box = null; } if (_toolbar != null) { - _toolbar.Selected -= OnToolbarItemSelected; - _scroller.PageScrolled -= OnItemPageScrolled; + _toolbar.Selected -= OnCurrentPageChanged; _toolbar.Unrealize(); _toolbar = null; @@ -147,7 +91,7 @@ namespace Xamarin.Forms.Platform.Tizen protected override void OnElementReady() { - FillToolbarAndContents(); + FillToolbar(); base.OnElementReady(); } @@ -200,53 +144,73 @@ namespace Xamarin.Forms.Platform.Tizen } } - void FillToolbarAndContents() + void FillToolbar() { + var logicalChildren = (Element as IElementController).LogicalChildren; + //add items to toolbar - foreach (Page child in Pages) + foreach (Page child in logicalChildren) { + var childRenderer = Platform.GetRenderer(child); + if (childRenderer != null) + { + childRenderer.NativeView.Hide(); + } + EToolbarItem toolbarItem = _toolbar.Append(child.Title, string.IsNullOrEmpty(child.Icon) ? null : ResourcePath.GetPath(child.Icon)); if (Element.BarBackgroundColor != Color.Default) { toolbarItem.SetPartColor("bg", _toolbar.BackgroundColor); } _itemToItemPage.Add(toolbarItem, child); - - var childContent = Platform.GetOrCreateRenderer(child).NativeView; - _innerBox.PackEnd(childContent); - if (Element.CurrentPage == child) { //select item on the toolbar and fill content toolbarItem.IsSelected = true; + CreateNewPage(); } child.PropertyChanged += OnPageTitleChanged; } } - void OnToolbarItemSelected(object sender, EToolbarItemEventArgs e) + void OnCurrentPageChanged(object sender, EToolbarItemEventArgs e) { if (_toolbar.SelectedItem == null) return; - var oldPage = Element.CurrentPage; - var newPage = _itemToItemPage[_toolbar.SelectedItem]; + var selectedContent = Platform.GetRenderer(_itemToItemPage[e.Item]).NativeView; - if (oldPage == newPage) + if (selectedContent == _content) return; - oldPage?.SendDisappearing(); - - Element.CurrentPage = newPage; - newPage?.SendAppearing(); + //detach content from view without EvasObject changes + if (_content != null) + { + //hide content that should not be visible + _content.Hide(); + //unpack content that is hiden an prepare for new content + _box.UnPack(_content); + Element.CurrentPage?.SendDisappearing(); + } + Element.CurrentPage = _itemToItemPage[_toolbar.SelectedItem]; + CreateNewPage(); + } - int index = MultiPage<Page>.GetIndex(newPage); - _scroller.ScrollTo(index, 0, true); + void CreateNewPage() + { + //create EvasObject using renderer and remember to not destroy + //it for better performance (create once) + _content = Platform.GetOrCreateRenderer(Element.CurrentPage).NativeView; + _content.SetAlignment(-1, -1); + _content.SetWeight(1, 1); + _content.Show(); + _box.PackEnd(_content); + Element.CurrentPage?.SendAppearing(); } void CurrentPageChanged() { - foreach (var pair in _itemToItemPage) + foreach (KeyValuePair<EToolbarItem, Page> pair in _itemToItemPage) { if (pair.Value == Element.CurrentPage) { |