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UI adjustment

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This commit is contained in:
Tsanie Lily
2020-05-07 12:46:31 +08:00
parent a0607993e9
commit 84aecdf39b
21 changed files with 593 additions and 86 deletions
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45
Pixiview.iOS/Renderers/AdaptedPageRenderer.cs
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@ -1,6 +1,6 @@
using System.Diagnostics.CodeAnalysis;
using Foundation;
using Foundation;
using Pixiview.iOS.Renderers;
using Pixiview.iOS.Services;
using Pixiview.UI;
using Pixiview.Utils;
using UIKit;
@ -46,11 +46,8 @@ namespace Pixiview.iOS.Renderers
var element = Element;
if (element != null)
{
var style = ConvertStyle(Screen.GetStatusBarStyle(element));
if (UIApplication.SharedApplication.StatusBarStyle != style)
{
SetStatusBarStyle(style);
}
var style = EnvironmentService.ConvertStyle(Screen.GetStatusBarStyle(element));
EnvironmentService.SetStatusBarStyle(style);
}
observer = UIDevice.Notifications.ObserveOrientationDidChange(ChangeOrientation);
@ -68,38 +65,6 @@ namespace Pixiview.iOS.Renderers
base.ViewWillDisappear(animated);
}
private void SetStatusBarStyle(UIStatusBarStyle style)
{
if (style == UIStatusBarStyle.BlackOpaque)
{
UIApplication.SharedApplication.SetStatusBarHidden(true, true);
}
else
{
UIApplication.SharedApplication.SetStatusBarStyle(style, true);
UIApplication.SharedApplication.SetStatusBarHidden(false, true);
}
SetNeedsStatusBarAppearanceUpdate();
}
[SuppressMessage("Code Notifications", "XI0002:Notifies you from using newer Apple APIs when targeting an older OS version", Justification = "<Pending>")]
private UIStatusBarStyle ConvertStyle(StatusBarStyles style)
{
switch (style)
{
case StatusBarStyles.DarkText:
return UIStatusBarStyle.DarkContent;
case StatusBarStyles.WhiteText:
return UIStatusBarStyle.LightContent;
case StatusBarStyles.Hidden:
return UIStatusBarStyle.BlackOpaque;
case StatusBarStyles.Default:
default:
return UIStatusBarStyle.Default;
}
}
void ChangeOrientation(object sender, NSNotificationEventArgs e)
{
var current = UIDevice.CurrentDevice.Orientation;
@ -113,7 +78,7 @@ namespace Pixiview.iOS.Renderers
lastOrientation = current;
if (current == UIDeviceOrientation.Portrait && UIApplication.SharedApplication.StatusBarHidden)
{
var style = ConvertStyle(Screen.GetStatusBarStyle(Element));
var style = EnvironmentService.ConvertStyle(Screen.GetStatusBarStyle(Element));
if (style != UIStatusBarStyle.BlackOpaque)
{
UIApplication.SharedApplication.SetStatusBarHidden(false, true);

115
Pixiview.iOS/Renderers/AppShellRenderer.cs
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@ -1,5 +1,7 @@
using System.Threading.Tasks;
using System.Diagnostics.CodeAnalysis;
using System.Threading.Tasks;
using Pixiview.iOS.Renderers;
using Pixiview.iOS.Renderers.AppShellSection;
using Pixiview.Utils;
using UIKit;
using Xamarin.Forms;
@ -14,7 +16,7 @@ namespace Pixiview.iOS.Renderers
protected override IShellSectionRenderer CreateShellSectionRenderer(ShellSection shellSection)
{
var renderer = base.CreateShellSectionRenderer(shellSection);
var renderer = new AppShellSectionRenderer(this);
if (renderer is ShellSectionRenderer sr && Element is AppShell shell)
{
shell.SetNavigationBarHeight(
@ -24,15 +26,36 @@ namespace Pixiview.iOS.Renderers
return renderer;
}
[SuppressMessage("Code Notifications", "XI0002:Notifies you from using newer Apple APIs when targeting an older OS version", Justification = "<Pending>")]
protected override IShellItemRenderer CreateShellItemRenderer(ShellItem item)
{
var renderer = base.CreateShellItemRenderer(item);
if (UIDevice.CurrentDevice.CheckSystemVersion(13, 0))
{
if (renderer.ViewController is UITabBarController controller)
{
var tabBar = controller.TabBar;
tabBar.TintColor = UIColor.SecondaryLabelColor.ColorWithAlpha(1);
tabBar.UnselectedItemTintColor = UIColor.SecondaryLabelColor;
}
}
return renderer;
}
protected override IShellItemTransition CreateShellItemTransition()
{
return new AppShellItemTransition();
}
protected override IShellTabBarAppearanceTracker CreateTabBarAppearanceTracker()
{
return new AppShellTabBarAppearanceTracker();
}
}
public class AppShellItemTransition : IShellItemTransition
{
[System.Diagnostics.CodeAnalysis.SuppressMessage("Code Notifications", "XI0001:Notifies you with advices on how to use Apple APIs", Justification = "<Pending>")]
[SuppressMessage("Code Notifications", "XI0001:Notifies you with advices on how to use Apple APIs", Justification = "<Pending>")]
public Task Transition(IShellItemRenderer oldRenderer, IShellItemRenderer newRenderer)
{
var task = new TaskCompletionSource<bool>();
@ -47,4 +70,90 @@ namespace Pixiview.iOS.Renderers
return task.Task;
}
}
public class AppShellTabBarAppearanceTracker : IShellTabBarAppearanceTracker
{
UIColor _defaultBarTint;
UIColor _defaultTint;
UIColor _defaultUnselectedTint;
public void Dispose()
{
}
public void ResetAppearance(UITabBarController controller)
{
if (_defaultTint == null)
return;
var tabBar = controller.TabBar;
tabBar.BarTintColor = _defaultBarTint;
tabBar.TintColor = _defaultTint;
tabBar.UnselectedItemTintColor = _defaultUnselectedTint;
}
public void SetAppearance(UITabBarController controller, ShellAppearance appearance)
{
IShellAppearanceElement appearanceElement = appearance;
//var backgroundColor = appearanceElement.EffectiveTabBarBackgroundColor;
var unselectedColor = appearanceElement.EffectiveTabBarUnselectedColor;
var titleColor = appearanceElement.EffectiveTabBarTitleColor;
var tabBar = controller.TabBar;
//bool operatingSystemSupportsUnselectedTint = Forms.IsiOS10OrNewer;
if (_defaultTint == null)
{
_defaultBarTint = tabBar.BarTintColor;
_defaultTint = tabBar.TintColor;
//if (operatingSystemSupportsUnselectedTint)
{
_defaultUnselectedTint = tabBar.UnselectedItemTintColor;
}
}
//if (!backgroundColor.IsDefault)
// tabBar.BarTintColor = backgroundColor.ToUIColor();
if (!UIDevice.CurrentDevice.CheckSystemVersion(13, 0))
{
if (!titleColor.IsDefault)
tabBar.TintColor = titleColor.ToUIColor();
//if (operatingSystemSupportsUnselectedTint)
{
if (!unselectedColor.IsDefault)
tabBar.UnselectedItemTintColor = unselectedColor.ToUIColor();
}
}
}
public void UpdateLayout(UITabBarController controller)
{
}
}
public class AppShellSectionRenderer : ShellSectionRenderer
{
public AppShellSectionRenderer(IShellContext context) : base(context)
{
}
protected override IShellSectionRootRenderer CreateShellSectionRootRenderer(ShellSection shellSection, IShellContext shellContext)
{
return new AppShellSectionRootRenderer(shellSection, shellContext);
}
}
public class AppShellSectionRootRenderer : ShellSectionRootRenderer
{
public AppShellSectionRootRenderer(ShellSection shellSection, IShellContext shellContext) : base(shellSection, shellContext)
{
}
protected override IShellSectionRootHeader CreateShellSectionRootHeader(IShellContext shellContext)
{
return new AppShellSectionRootHeader(shellContext);
}
}
}

326
Pixiview.iOS/Renderers/AppShellSection/AppShellSectionRootHeader.cs Normal file
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@ -0,0 +1,326 @@
using System;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics.CodeAnalysis;
using CoreGraphics;
using Foundation;
using UIKit;
using Xamarin.Forms;
using Xamarin.Forms.Platform.iOS;
namespace Pixiview.iOS.Renderers.AppShellSection
{
public class AppShellSectionRootHeader : UICollectionViewController, IAppearanceObserver, IShellSectionRootHeader
{
#region IAppearanceObserver
readonly Color _defaultBackgroundColor = new Color(0.964);
readonly Color _defaultForegroundColor = Color.Black;
readonly Color _defaultUnselectedColor = Color.Black.MultiplyAlpha(0.7);
void IAppearanceObserver.OnAppearanceChanged(ShellAppearance appearance)
{
if (appearance == null)
ResetAppearance();
else
SetAppearance(appearance);
}
protected virtual void ResetAppearance()
{
SetValues(_defaultBackgroundColor, _defaultForegroundColor, _defaultUnselectedColor);
}
protected virtual void SetAppearance(ShellAppearance appearance)
{
SetValues(appearance.BackgroundColor.IsDefault ? _defaultBackgroundColor : appearance.BackgroundColor,
appearance.ForegroundColor.IsDefault ? _defaultForegroundColor : appearance.ForegroundColor,
appearance.UnselectedColor.IsDefault ? _defaultUnselectedColor : appearance.UnselectedColor);
}
void SetValues(Color backgroundColor, Color foregroundColor, Color unselectedColor)
{
CollectionView.BackgroundColor = new Color(backgroundColor.R, backgroundColor.G, backgroundColor.B, .663).ToUIColor();
_bar.BackgroundColor = foregroundColor.ToUIColor();
bool reloadData = _selectedColor != foregroundColor || _unselectedColor != unselectedColor;
_selectedColor = foregroundColor;
_unselectedColor = unselectedColor;
if (reloadData)
CollectionView.ReloadData();
}
#endregion IAppearanceObserver
static readonly NSString CellId = new NSString("HeaderCell");
readonly IShellContext _shellContext;
UIView _bar;
UIView _bottomShadow;
Color _selectedColor;
Color _unselectedColor;
bool _isDisposed;
public AppShellSectionRootHeader(IShellContext shellContext) : base(new UICollectionViewFlowLayout())
{
_shellContext = shellContext;
}
public double SelectedIndex { get; set; }
public ShellSection ShellSection { get; set; }
IShellSectionController ShellSectionController => ShellSection;
public UIViewController ViewController => this;
public override bool CanMoveItem(UICollectionView collectionView, NSIndexPath indexPath)
{
return false;
}
public override UICollectionViewCell GetCell(UICollectionView collectionView, NSIndexPath indexPath)
{
var reusedCell = (UICollectionViewCell)collectionView.DequeueReusableCell(CellId, indexPath);
if (!(reusedCell is ShellSectionHeaderCell headerCell))
return reusedCell;
var selectedItems = collectionView.GetIndexPathsForSelectedItems();
var shellContent = ShellSectionController.GetItems()[indexPath.Row];
headerCell.Label.Text = shellContent.Title;
headerCell.Label.SetNeedsDisplay();
headerCell.SelectedColor = _selectedColor.ToUIColor();
headerCell.UnSelectedColor = _unselectedColor.ToUIColor();
if (selectedItems.Length > 0 && selectedItems[0].Row == indexPath.Row)
headerCell.Selected = true;
else
headerCell.Selected = false;
return headerCell;
}
public override nint GetItemsCount(UICollectionView collectionView, nint section)
{
return ShellSectionController.GetItems().Count;
}
public override void ItemDeselected(UICollectionView collectionView, NSIndexPath indexPath)
{
if (CollectionView.CellForItem(indexPath) is ShellSectionHeaderCell cell)
cell.Label.TextColor = _unselectedColor.ToUIColor();
}
public override void ItemSelected(UICollectionView collectionView, NSIndexPath indexPath)
{
var row = indexPath.Row;
var item = ShellSectionController.GetItems()[row];
if (item != ShellSection.CurrentItem)
ShellSection.SetValueFromRenderer(ShellSection.CurrentItemProperty, item);
if (CollectionView.CellForItem(indexPath) is ShellSectionHeaderCell cell)
cell.Label.TextColor = _selectedColor.ToUIColor();
}
public override nint NumberOfSections(UICollectionView collectionView)
{
return 1;
}
public override bool ShouldSelectItem(UICollectionView collectionView, NSIndexPath indexPath)
{
var row = indexPath.Row;
var item = ShellSectionController.GetItems()[row];
IShellController shellController = _shellContext.Shell;
if (item == ShellSection.CurrentItem)
return true;
return shellController.ProposeNavigation(ShellNavigationSource.ShellContentChanged, (ShellItem)ShellSection.Parent, ShellSection, item, ShellSection.Stack, true);
}
public override void ViewDidLayoutSubviews()
{
if (_isDisposed)
return;
base.ViewDidLayoutSubviews();
LayoutBar();
_bottomShadow.Frame = new CGRect(0, CollectionView.Frame.Bottom, CollectionView.Frame.Width, 0.5);
}
public override void ViewDidLoad()
{
if (_isDisposed)
return;
base.ViewDidLoad();
CollectionView.ScrollsToTop = false;
CollectionView.Bounces = false;
CollectionView.AlwaysBounceHorizontal = false;
CollectionView.ShowsHorizontalScrollIndicator = false;
CollectionView.ClipsToBounds = false;
_bar = new UIView(new CGRect(0, 0, 20, 20));
_bar.Layer.ZPosition = 9001; //its over 9000!
CollectionView.AddSubview(_bar);
_bottomShadow = new UIView(new CGRect(0, 0, 10, 1))
{
BackgroundColor = Color.Black.MultiplyAlpha(0.3).ToUIColor()
};
_bottomShadow.Layer.ZPosition = 9002;
CollectionView.AddSubview(_bottomShadow);
var flowLayout = Layout as UICollectionViewFlowLayout;
flowLayout.ScrollDirection = UICollectionViewScrollDirection.Horizontal;
flowLayout.MinimumInteritemSpacing = 0;
flowLayout.MinimumLineSpacing = 0;
flowLayout.EstimatedItemSize = new CGSize(70, 35);
CollectionView.RegisterClassForCell(GetCellType(), CellId);
((IShellController)_shellContext.Shell).AddAppearanceObserver(this, ShellSection);
ShellSectionController.ItemsCollectionChanged += OnShellSectionItemsChanged;
UpdateSelectedIndex();
ShellSection.PropertyChanged += OnShellSectionPropertyChanged;
}
protected virtual Type GetCellType()
{
return typeof(ShellSectionHeaderCell);
}
protected override void Dispose(bool disposing)
{
if (_isDisposed)
return;
if (disposing)
{
((IShellController)_shellContext.Shell).RemoveAppearanceObserver(this);
ShellSectionController.ItemsCollectionChanged -= OnShellSectionItemsChanged;
ShellSection.PropertyChanged -= OnShellSectionPropertyChanged;
ShellSection = null;
_bar.RemoveFromSuperview();
RemoveFromParentViewController();
_bar.Dispose();
_bar = null;
}
_isDisposed = true;
base.Dispose(disposing);
}
protected void LayoutBar()
{
if (SelectedIndex < 0)
return;
if (ShellSectionController.GetItems().IndexOf(ShellSection.CurrentItem) != SelectedIndex)
return;
var layout = CollectionView.GetLayoutAttributesForItem(NSIndexPath.FromItemSection((int)SelectedIndex, 0));
if (layout == null)
return;
var frame = layout.Frame;
if (_bar.Frame.Height != 2)
{
_bar.Frame = new CGRect(frame.X, frame.Bottom - 2, frame.Width, 2);
}
else
{
UIView.Animate(.25, () => _bar.Frame = new CGRect(frame.X, frame.Bottom - 2, frame.Width, 2));
}
}
protected virtual void OnShellSectionPropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (e.PropertyName == ShellSection.CurrentItemProperty.PropertyName)
{
UpdateSelectedIndex();
}
}
protected virtual void UpdateSelectedIndex(bool animated = false)
{
if (ShellSection.CurrentItem == null)
return;
SelectedIndex = ShellSectionController.GetItems().IndexOf(ShellSection.CurrentItem);
if (SelectedIndex < 0)
return;
LayoutBar();
CollectionView.SelectItem(NSIndexPath.FromItemSection((int)SelectedIndex, 0), false, UICollectionViewScrollPosition.CenteredHorizontally);
}
void OnShellSectionItemsChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (_isDisposed)
return;
CollectionView.ReloadData();
}
public class ShellSectionHeaderCell : UICollectionViewCell
{
public UIColor SelectedColor { get; set; }
public UIColor UnSelectedColor { get; set; }
public ShellSectionHeaderCell()
{
}
[Export("initWithFrame:")]
public ShellSectionHeaderCell(CGRect frame) : base(frame)
{
Label = new UILabel
{
TextAlignment = UITextAlignment.Center,
Font = UIFont.BoldSystemFontOfSize(14)
};
ContentView.AddSubview(Label);
}
public override bool Selected
{
get => base.Selected;
set
{
base.Selected = value;
Label.TextColor = value ? SelectedColor : UnSelectedColor;
}
}
public UILabel Label { get; }
public override void LayoutSubviews()
{
base.LayoutSubviews();
Label.Frame = Bounds;
}
public override CGSize SizeThatFits(CGSize size)
{
return new CGSize(Label.SizeThatFits(size).Width + 30, 35);
}
}
}
}