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authorSamantha Houts <samantha.houts@xamarin.com>2016-03-30 19:01:54 (GMT)
committerSamantha Houts <samantha.houts@xamarin.com>2016-03-30 19:01:54 (GMT)
commit16887287375dd5348d5800a14b92116ccfeba220 (patch)
tree703791562306ce03d8c0dcfa3ede77db5be833d5 /Xamarin.Forms.ControlGallery.iOS
parentec0675950bd6123694bbe846f103b835fb31f5ad (diff)
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[iOS] PageRenderer no longer swallows touches
Will allow users to create custom renderers that have touch events.
Diffstat (limited to 'Xamarin.Forms.ControlGallery.iOS')
-rw-r--r--Xamarin.Forms.ControlGallery.iOS/CustomRenderers.cs351
1 files changed, 240 insertions, 111 deletions
diff --git a/Xamarin.Forms.ControlGallery.iOS/CustomRenderers.cs b/Xamarin.Forms.ControlGallery.iOS/CustomRenderers.cs
index a932ead..a71a48c 100644
--- a/Xamarin.Forms.ControlGallery.iOS/CustomRenderers.cs
+++ b/Xamarin.Forms.ControlGallery.iOS/CustomRenderers.cs
@@ -10,45 +10,49 @@ using System.Drawing;
#if __UNIFIED__
using UIKit;
using Foundation;
-using RectangleF=CoreGraphics.CGRect;
+using RectangleF = CoreGraphics.CGRect;
+
#else
using MonoTouch.UIKit;
using MonoTouch.Foundation;
#endif
-[assembly: ExportRenderer (typeof (Bugzilla31395.CustomContentView), typeof (CustomContentRenderer))]
-[assembly: ExportRenderer (typeof (NativeCell), typeof (NativeiOSCellRenderer))]
-[assembly: ExportRenderer (typeof (NativeListView2), typeof (NativeiOSListViewRenderer))]
-[assembly: ExportRenderer (typeof (NativeListView), typeof (NativeListViewRenderer))]
+[assembly: ExportRenderer(typeof(Bugzilla21177.CollectionView), typeof(CollectionViewRenderer))]
+[assembly: ExportRenderer(typeof(Bugzilla31395.CustomContentView), typeof(CustomContentRenderer))]
+[assembly: ExportRenderer(typeof(NativeCell), typeof(NativeiOSCellRenderer))]
+[assembly: ExportRenderer(typeof(NativeListView2), typeof(NativeiOSListViewRenderer))]
+[assembly: ExportRenderer(typeof(NativeListView), typeof(NativeListViewRenderer))]
namespace Xamarin.Forms.ControlGallery.iOS
{
public class NativeiOSCellRenderer : ViewCellRenderer
{
static NSString s_rid = new NSString("NativeCell");
- public NativeiOSCellRenderer ()
+ public NativeiOSCellRenderer()
{
}
- public override UITableViewCell GetCell (Xamarin.Forms.Cell item, UITableViewCell reusableCell, UITableView tv)
+ public override UITableViewCell GetCell(Xamarin.Forms.Cell item, UITableViewCell reusableCell, UITableView tv)
{
var x = (NativeCell)item;
- Console.WriteLine (x);
+ Console.WriteLine(x);
- NativeiOSCell c = reusableCell as NativeiOSCell;
+ NativeiOSCell c = reusableCell as NativeiOSCell;
- if (c == null) {
- c = new NativeiOSCell (s_rid);
+ if (c == null)
+ {
+ c = new NativeiOSCell(s_rid);
}
UIImage i = null;
- if (!string.IsNullOrWhiteSpace (x.ImageFilename)) {
- i = UIImage.FromFile ("Images/" + x.ImageFilename + ".jpg");
+ if (!string.IsNullOrWhiteSpace(x.ImageFilename))
+ {
+ i = UIImage.FromFile("Images/" + x.ImageFilename + ".jpg");
}
- base.WireUpForceUpdateSizeRequested (item, c, tv);
+ base.WireUpForceUpdateSizeRequested(item, c, tv);
- c.UpdateCell (x.Name, x.Category, i);
+ c.UpdateCell(x.Name, x.Category, i);
return c;
}
@@ -59,47 +63,48 @@ namespace Xamarin.Forms.ControlGallery.iOS
/// Sample of a custom cell layout, taken from the iOS docs at
/// http://developer.xamarin.com/guides/ios/user_interface/tables/part_3_-_customizing_a_table's_appearance/
/// </summary>
- public class NativeiOSCell : UITableViewCell {
+ public class NativeiOSCell : UITableViewCell
+ {
UILabel _headingLabel;
UILabel _subheadingLabel;
UIImageView _imageView;
- public NativeiOSCell (NSString cellId) : base (UITableViewCellStyle.Default, cellId)
+ public NativeiOSCell(NSString cellId) : base(UITableViewCellStyle.Default, cellId)
{
SelectionStyle = UITableViewCellSelectionStyle.Gray;
- ContentView.BackgroundColor = UIColor.FromRGB (255,255,224);
+ ContentView.BackgroundColor = UIColor.FromRGB(255, 255, 224);
_imageView = new UIImageView();
- _headingLabel = new UILabel () {
+ _headingLabel = new UILabel() {
Font = UIFont.FromName("Cochin-BoldItalic", 22f),
- TextColor = UIColor.FromRGB (127, 51, 0),
+ TextColor = UIColor.FromRGB(127, 51, 0),
BackgroundColor = UIColor.Clear
};
- _subheadingLabel = new UILabel () {
+ _subheadingLabel = new UILabel() {
Font = UIFont.FromName("AmericanTypewriter", 12f),
- TextColor = UIColor.FromRGB (38, 127, 0),
+ TextColor = UIColor.FromRGB(38, 127, 0),
TextAlignment = UITextAlignment.Center,
BackgroundColor = UIColor.Clear
};
- ContentView.Add (_headingLabel);
- ContentView.Add (_subheadingLabel);
- ContentView.Add (_imageView);
+ ContentView.Add(_headingLabel);
+ ContentView.Add(_subheadingLabel);
+ ContentView.Add(_imageView);
}
- public void UpdateCell (string caption, string subtitle, UIImage image)
+ public void UpdateCell(string caption, string subtitle, UIImage image)
{
_imageView.Image = image;
_headingLabel.Text = caption;
_subheadingLabel.Text = subtitle;
}
- public override void LayoutSubviews ()
+ public override void LayoutSubviews()
{
- base.LayoutSubviews ();
+ base.LayoutSubviews();
_imageView.Frame = new RectangleF(ContentView.Bounds.Width - 63, 5, 33, 33);
_headingLabel.Frame = new RectangleF(5, 4, ContentView.Bounds.Width - 63, 25);
@@ -111,47 +116,48 @@ namespace Xamarin.Forms.ControlGallery.iOS
/// Sample of a custom cell layout, taken from the iOS docs at
/// http://developer.xamarin.com/guides/ios/user_interface/tables/part_3_-_customizing_a_table's_appearance/
/// </summary>
- public class NativeiOSListViewCell : UITableViewCell {
+ public class NativeiOSListViewCell : UITableViewCell
+ {
UILabel _headingLabel;
UILabel _subheadingLabel;
UIImageView _imageView;
- public NativeiOSListViewCell (NSString cellId) : base (UITableViewCellStyle.Default, cellId)
+ public NativeiOSListViewCell(NSString cellId) : base(UITableViewCellStyle.Default, cellId)
{
SelectionStyle = UITableViewCellSelectionStyle.Gray;
- ContentView.BackgroundColor = UIColor.FromRGB (218, 255, 127);
+ ContentView.BackgroundColor = UIColor.FromRGB(218, 255, 127);
_imageView = new UIImageView();
- _headingLabel = new UILabel () {
+ _headingLabel = new UILabel() {
Font = UIFont.FromName("Cochin-BoldItalic", 22f),
- TextColor = UIColor.FromRGB (127, 51, 0),
+ TextColor = UIColor.FromRGB(127, 51, 0),
BackgroundColor = UIColor.Clear
};
- _subheadingLabel = new UILabel () {
+ _subheadingLabel = new UILabel() {
Font = UIFont.FromName("AmericanTypewriter", 12f),
- TextColor = UIColor.FromRGB (38, 127, 0),
+ TextColor = UIColor.FromRGB(38, 127, 0),
TextAlignment = UITextAlignment.Center,
BackgroundColor = UIColor.Clear
};
- ContentView.Add (_headingLabel);
- ContentView.Add (_subheadingLabel);
- ContentView.Add (_imageView);
+ ContentView.Add(_headingLabel);
+ ContentView.Add(_subheadingLabel);
+ ContentView.Add(_imageView);
}
- public void UpdateCell (string caption, string subtitle, UIImage image)
+ public void UpdateCell(string caption, string subtitle, UIImage image)
{
_imageView.Image = image;
_headingLabel.Text = caption;
_subheadingLabel.Text = subtitle;
}
- public override void LayoutSubviews ()
+ public override void LayoutSubviews()
{
- base.LayoutSubviews ();
+ base.LayoutSubviews();
_imageView.Frame = new RectangleF(ContentView.Bounds.Width - 63, 5, 33, 33);
_headingLabel.Frame = new RectangleF(5, 4, ContentView.Bounds.Width - 63, 25);
@@ -161,84 +167,96 @@ namespace Xamarin.Forms.ControlGallery.iOS
public class NativeiOSListViewRenderer : ViewRenderer<NativeListView2, UITableView>
{
- public NativeiOSListViewRenderer ()
+ public NativeiOSListViewRenderer()
{
}
- protected override void OnElementChanged (ElementChangedEventArgs<NativeListView2> e)
+ protected override void OnElementChanged(ElementChangedEventArgs<NativeListView2> e)
{
- base.OnElementChanged (e);
+ base.OnElementChanged(e);
- if (Control == null) {
- SetNativeControl (new UITableView ());
+ if (Control == null)
+ {
+ SetNativeControl(new UITableView());
}
- if (e.OldElement != null) {
+ if (e.OldElement != null)
+ {
// unsubscribe
}
- if (e.NewElement != null) {
+ if (e.NewElement != null)
+ {
// subscribe
- var s = new NativeiOSListViewSource (e.NewElement);
+ var s = new NativeiOSListViewSource(e.NewElement);
Control.Source = s;
}
}
- protected override void OnElementPropertyChanged (object sender, System.ComponentModel.PropertyChangedEventArgs e)
+
+ protected override void OnElementPropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
- base.OnElementPropertyChanged (sender, e);
+ base.OnElementPropertyChanged(sender, e);
- if (e.PropertyName == NativeListView.ItemsProperty.PropertyName) {
+ if (e.PropertyName == NativeListView.ItemsProperty.PropertyName)
+ {
// update the Items list in the UITableViewSource
- var s = new NativeiOSListViewSource (Element);
+ var s = new NativeiOSListViewSource(Element);
Control.Source = s;
}
}
- public override SizeRequest GetDesiredSize (double widthConstraint, double heightConstraint)
+
+ public override SizeRequest GetDesiredSize(double widthConstraint, double heightConstraint)
{
- return Control.GetSizeRequest (widthConstraint, heightConstraint, 44, 44);
+ return Control.GetSizeRequest(widthConstraint, heightConstraint, 44, 44);
}
}
public class NativeListViewRenderer : ViewRenderer<NativeListView, UITableView>
{
- public NativeListViewRenderer ()
+ public NativeListViewRenderer()
{
}
- protected override void OnElementChanged (ElementChangedEventArgs<NativeListView> e)
+ protected override void OnElementChanged(ElementChangedEventArgs<NativeListView> e)
{
- base.OnElementChanged (e);
+ base.OnElementChanged(e);
- if (Control == null) {
- SetNativeControl (new UITableView ());
+ if (Control == null)
+ {
+ SetNativeControl(new UITableView());
}
- if (e.OldElement != null) {
+ if (e.OldElement != null)
+ {
// unsubscribe
}
- if (e.NewElement != null) {
+ if (e.NewElement != null)
+ {
// subscribe
- var s = new NativeListViewSource (e.NewElement);
+ var s = new NativeListViewSource(e.NewElement);
Control.Source = s;
}
}
- protected override void OnElementPropertyChanged (object sender, System.ComponentModel.PropertyChangedEventArgs e)
+
+ protected override void OnElementPropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
- base.OnElementPropertyChanged (sender, e);
+ base.OnElementPropertyChanged(sender, e);
- if (e.PropertyName == NativeListView.ItemsProperty.PropertyName) {
+ if (e.PropertyName == NativeListView.ItemsProperty.PropertyName)
+ {
// update the Items list in the UITableViewSource
- var s = new NativeListViewSource (Element);
+ var s = new NativeListViewSource(Element);
Control.Source = s;
}
}
- public override SizeRequest GetDesiredSize (double widthConstraint, double heightConstraint)
+
+ public override SizeRequest GetDesiredSize(double widthConstraint, double heightConstraint)
{
- return Control.GetSizeRequest (widthConstraint, heightConstraint, 44, 44);
+ return Control.GetSizeRequest(widthConstraint, heightConstraint, 44, 44);
}
}
@@ -249,14 +267,16 @@ namespace Xamarin.Forms.ControlGallery.iOS
NativeListView2 _listView;
readonly NSString _cellIdentifier = new NSString("TableCell");
- public IEnumerable<DataSource> Items {
+ public IEnumerable<DataSource> Items
+ {
//get{ }
- set{
+ set
+ {
_tableItems = value.ToList();
}
}
- public NativeiOSListViewSource (NativeListView2 view)
+ public NativeiOSListViewSource(NativeListView2 view)
{
_tableItems = view.Items.ToList();
_listView = view;
@@ -266,32 +286,32 @@ namespace Xamarin.Forms.ControlGallery.iOS
/// Called by the TableView to determine how many cells to create for that particular section.
/// </summary>
- #if __UNIFIED__
- public override nint RowsInSection (UITableView tableview, nint section)
+#if __UNIFIED__
+ public override nint RowsInSection(UITableView tableview, nint section)
{
return _tableItems.Count;
}
- #else
+#else
public override int RowsInSection (UITableView tableview, int section)
{
return _tableItems.Count;
}
- #endif
-
+#endif
+
#region user interaction methods
- public override void RowSelected (UITableView tableView, NSIndexPath indexPath)
+ public override void RowSelected(UITableView tableView, NSIndexPath indexPath)
{
- _listView.NotifyItemSelected (_tableItems [indexPath.Row]);
- Console.WriteLine("Row " + indexPath.Row.ToString() + " selected");
- tableView.DeselectRow (indexPath, true);
+ _listView.NotifyItemSelected(_tableItems[indexPath.Row]);
+ Console.WriteLine("Row " + indexPath.Row.ToString() + " selected");
+ tableView.DeselectRow(indexPath, true);
}
- public override void RowDeselected (UITableView tableView, NSIndexPath indexPath)
+ public override void RowDeselected(UITableView tableView, NSIndexPath indexPath)
{
- Console.WriteLine("Row " + indexPath.Row.ToString() + " deselected");
+ Console.WriteLine("Row " + indexPath.Row.ToString() + " deselected");
}
#endregion
@@ -299,24 +319,27 @@ namespace Xamarin.Forms.ControlGallery.iOS
/// <summary>
/// Called by the TableView to get the actual UITableViewCell to render for the particular section and row
/// </summary>
- public override UITableViewCell GetCell (UITableView tableView, NSIndexPath indexPath)
+ public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath)
{
// request a recycled cell to save memory
- NativeiOSListViewCell cell = tableView.DequeueReusableCell (_cellIdentifier) as NativeiOSListViewCell;
+ NativeiOSListViewCell cell = tableView.DequeueReusableCell(_cellIdentifier) as NativeiOSListViewCell;
// if there are no cells to reuse, create a new one
- if (cell == null) {
- cell = new NativeiOSListViewCell (_cellIdentifier);
+ if (cell == null)
+ {
+ cell = new NativeiOSListViewCell(_cellIdentifier);
}
- if (string.IsNullOrWhiteSpace (_tableItems [indexPath.Row].ImageFilename)) {
- cell.UpdateCell (_tableItems [indexPath.Row].Name
- , _tableItems [indexPath.Row].Category
+ if (string.IsNullOrWhiteSpace(_tableItems[indexPath.Row].ImageFilename))
+ {
+ cell.UpdateCell(_tableItems[indexPath.Row].Name
+ , _tableItems[indexPath.Row].Category
, null);
- } else {
- cell.UpdateCell (_tableItems[indexPath.Row].Name
+ }
+ else {
+ cell.UpdateCell(_tableItems[indexPath.Row].Name
, _tableItems[indexPath.Row].Category
- , UIImage.FromFile ("Images/" +_tableItems[indexPath.Row].ImageFilename + ".jpg") );
+ , UIImage.FromFile("Images/" + _tableItems[indexPath.Row].ImageFilename + ".jpg"));
}
return cell;
@@ -330,43 +353,46 @@ namespace Xamarin.Forms.ControlGallery.iOS
string _cellIdentifier = "TableCell";
NativeListView _listView;
- public IEnumerable<string> Items {
- set{
+ public IEnumerable<string> Items
+ {
+ set
+ {
_tableItems = value.ToList();
}
}
- public NativeListViewSource (NativeListView view)
+ public NativeListViewSource(NativeListView view)
{
- _tableItems = view.Items.ToList ();
+ _tableItems = view.Items.ToList();
_listView = view;
}
- #if __UNIFIED__
- public override nint RowsInSection (UITableView tableview, nint section)
+#if __UNIFIED__
+ public override nint RowsInSection(UITableView tableview, nint section)
{
return _tableItems.Count;
}
- #else
+
+#else
public override int RowsInSection (UITableView tableview, int section)
{
return _tableItems.Count;
}
- #endif
+#endif
#region user interaction methods
- public override void RowSelected (UITableView tableView, NSIndexPath indexPath)
+ public override void RowSelected(UITableView tableView, NSIndexPath indexPath)
{
- _listView.NotifyItemSelected (_tableItems [indexPath.Row]);
+ _listView.NotifyItemSelected(_tableItems[indexPath.Row]);
- Console.WriteLine("Row " + indexPath.Row.ToString() + " selected");
+ Console.WriteLine("Row " + indexPath.Row.ToString() + " selected");
- tableView.DeselectRow (indexPath, true);
+ tableView.DeselectRow(indexPath, true);
}
- public override void RowDeselected (UITableView tableView, NSIndexPath indexPath)
+ public override void RowDeselected(UITableView tableView, NSIndexPath indexPath)
{
- Console.WriteLine("Row " + indexPath.Row.ToString() + " deselected");
+ Console.WriteLine("Row " + indexPath.Row.ToString() + " deselected");
}
#endregion
@@ -374,18 +400,18 @@ namespace Xamarin.Forms.ControlGallery.iOS
/// <summary>
/// Called by the TableView to get the actual UITableViewCell to render for the particular section and row
/// </summary>
- public override UITableViewCell GetCell (UITableView tableView, NSIndexPath indexPath)
+ public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath)
{
// declare vars
- UITableViewCell cell = tableView.DequeueReusableCell (_cellIdentifier);
+ UITableViewCell cell = tableView.DequeueReusableCell(_cellIdentifier);
//string item = tableItems [indexPath.Row]; //.Items[indexPath.Row];
// if there are no cells to reuse, create a new one
if (cell == null)
- cell = new UITableViewCell (UITableViewCellStyle.Subtitle, _cellIdentifier);
+ cell = new UITableViewCell(UITableViewCellStyle.Subtitle, _cellIdentifier);
// set the item text
- cell.TextLabel.Text = _tableItems [indexPath.Row];//.Items[indexPath.Row].Heading;
+ cell.TextLabel.Text = _tableItems[indexPath.Row];//.Items[indexPath.Row].Heading;
// if it's a cell style that supports a subheading, set it
// if(item.CellStyle == UITableViewCellStyle.Subtitle
@@ -411,5 +437,108 @@ namespace Xamarin.Forms.ControlGallery.iOS
public class CustomContentRenderer : ViewRenderer
{
}
+
+ public class CollectionViewRenderer : ViewRenderer<Bugzilla21177.CollectionView, UICollectionView>
+ {
+ public void ItemSelected(UICollectionView collectionViewView, NSIndexPath indexPath)
+ {
+ Element.InvokeItemSelected(indexPath.Row);
+ }
+
+ protected override void OnElementChanged(ElementChangedEventArgs<Bugzilla21177.CollectionView> e)
+ {
+ if (e.NewElement != null)
+ {
+ var flowLayout = new UICollectionViewFlowLayout {
+ SectionInset = new UIEdgeInsets(20, 20, 20, 20),
+ ScrollDirection = UICollectionViewScrollDirection.Vertical,
+ MinimumInteritemSpacing = 5, // minimum spacing between cells 
+ MinimumLineSpacing = 5 // minimum spacing between rows if ScrollDirection is Vertical or between columns if Horizontal 
+ };
+ var collectionView = new CollectionViewController(flowLayout, ItemSelected);
+ SetNativeControl(collectionView.CollectionView);
+ }
+
+ base.OnElementChanged(e);
+ }
+ }
+
+ public class CollectionViewController : UICollectionViewController
+ {
+ readonly OnItemSelected _onItemSelected;
+ static NSString cellId = new NSString("CollectionViewCell");
+ List<string> items;
+
+ public delegate void OnItemSelected(UICollectionView collectionView, NSIndexPath indexPath);
+
+ public CollectionViewController(UICollectionViewLayout layout, OnItemSelected onItemSelected) : base(layout)
+ {
+ items = Enumerable.Range(0, 20).Select(c => $"#{c}").ToList();
+ _onItemSelected = onItemSelected;
+ }
+
+ public override void ViewDidLoad()
+ {
+ base.ViewDidLoad();
+ CollectionView.RegisterClassForCell(typeof(CollectionViewCell), cellId);
+ }
+
+#if __UNIFIED__
+ public override nint NumberOfSections(UICollectionView collectionView)
+ {
+ return 1;
+ }
+
+ public override nint GetItemsCount(UICollectionView collectionView, nint section)
+ {
+ return items.Count;
+ }
+
+#else
+ public override int NumberOfSections (UICollectionView collectionView)
+ {
+ return 1;
+ }
+
+ public override int GetItemsCount (UICollectionView collectionView, int section)
+ {
+ return items.Count;
+ }
+#endif
+
+ public override UICollectionViewCell GetCell(UICollectionView collectionView, NSIndexPath indexPath)
+ {
+ var cell = (CollectionViewCell)collectionView.DequeueReusableCell(cellId, indexPath);
+ cell.Label.Text = items[indexPath.Row];
+ return cell;
+ }
+
+ public override void ItemSelected(UICollectionView collectionView, NSIndexPath indexPath)
+ {
+ _onItemSelected(collectionView, indexPath);
+ }
+ }
+
+ public class CollectionViewCell : UICollectionViewCell
+ {
+ public UILabel Label
+ {
+ get; private set;
+ }
+
+ [Export("initWithFrame:")]
+ public CollectionViewCell(RectangleF frame) : base(frame)
+ {
+ var rand = new Random();
+ BackgroundView = new UIView { BackgroundColor = UIColor.FromRGB(rand.Next(0, 256), rand.Next(0, 256), rand.Next(0, 256)) };
+ SelectedBackgroundView = new UIView { BackgroundColor = UIColor.Green };
+ ContentView.Layer.BorderColor = UIColor.LightGray.CGColor;
+ ContentView.Layer.BorderWidth = 2.0f;
+ Label = new UILabel(frame);
+ Label.Center = ContentView.Center;
+ ContentView.AddSubview(Label);
+ }
+ }
+
}