public HardwareKeyPage1(bool modal)
{
#region Hardware Key Listeners
#region ... for this HardwareKeyPage
this.AddHardwareKeyListener("ç", OnHardwareKeyPressed);
this.AddHardwareKeyListener("é", OnHardwareKeyPressed);
this.AddHardwareKeyListener("ф", OnHardwareKeyPressed);
this.AddHardwareKeyListener("A", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("`", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("~", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("1", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("!", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("2", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("@", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("3", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("#", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("4", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("$", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("5", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("%", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("6", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("^", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("7", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("&", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("8", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("*", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("9", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("(", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("0", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(")", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("-", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("_", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("+", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("=", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("0", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(")", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("[", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("{", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("]", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("}", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("\\", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("|", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(";", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(":", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("'", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("\"", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(",", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("<", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(".", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(">", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("/", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("?", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.BackspaceDeleteKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.ForwardDeleteKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.InsertKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.TabKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.EnterReturnKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.PageUpKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.PageDownKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.HomeKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.EndKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.BackspaceDeleteKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.ForwardDeleteKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.InsertKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.TabKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.EnterReturnKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.PageUpKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.PageDownKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.HomeKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.EndKeyInput, OnHardwareKeyPressed);
#endregion
#region ... for _entry
_entry.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, OnHardwareKeyPressed);
_entry.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, OnHardwareKeyPressed);
_entry.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, OnHardwareKeyPressed);
_entry.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, OnHardwareKeyPressed);
_entry.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, OnHardwareKeyPressed);
#endregion
#region ... for _editor
_editor.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, OnHardwareKeyPressed);
_editor.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, OnHardwareKeyPressed);
_editor.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, OnHardwareKeyPressed);
_editor.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, OnHardwareKeyPressed);
_editor.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, OnHardwareKeyPressed);
#endregion
#region ... for _label
_label.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, OnHardwareKeyPressed);
_label.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, OnHardwareKeyPressed);
_label.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, OnHardwareKeyPressed);
_label.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, OnHardwareKeyPressed);
_label.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, OnHardwareKeyPressed);
#endregion
#region ... for _button
_button.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, OnHardwareKeyPressed);
_button.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, OnHardwareKeyPressed);
_button.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, OnHardwareKeyPressed);
_button.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, OnHardwareKeyPressed);
_button.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, OnHardwareKeyPressed);
#endregion
#endregion
#region layout
Padding = new Thickness(5, 25, 5, 5);
Content = new Xamarin.Forms.ScrollView
{
Content = new Xamarin.Forms.StackLayout
{
Children =
{
_label,
_editor,
_entry,
_button,
new Xamarin.Forms.Label {
Text = "Focus:"
},
_segmentedControl,
new BoxView {
Color = Color.Black,HeightRequest = 2
},
_focusLabel,
new BoxView {
Color = Color.Black,HeightRequest = 2
},
_defaultFocusLabel,
new BoxView {
Color = Color.Black,HeightRequest = 2
},
_inputLabel,
_modifiersLabel,
_keyboardType
}
}
};
#endregion
#region Event Handlers
// NOTE: The only elements that change the focus are Entry and Editor. As such, if we want to change focus when a user takes an action other then selecting an Editor or Entry, we have change the focus ourselves.
_segmentedControl.SegmentTapped += (sender, e) =>
{
switch (e.Segment.Text)
{
case "label": _label.HardwareKeyFocus(); break;
case "editor": _editor.HardwareKeyFocus(); break;
case "entry": _entry.HardwareKeyFocus(); break;
case "button": _button.HardwareKeyFocus(); break;
}
};
Forms9Patch.HardwareKeyPage.FocusedElementChanged += (sender, e) =>
{
_defaultFocusLabel.Text = "HardwareKeyPage.DefaultFocusedElement: " + Forms9Patch.HardwareKeyPage.DefaultFocusedElement;
_focusLabel.Text = "HardwareKeyPage.FocusedElement: " + sender;
if (sender == _label)
{
_segmentedControl.SelectIndex(0);
}
else if (sender == _editor)
{
_segmentedControl.SelectIndex(1);
}
else if (sender == _entry)
{
_segmentedControl.SelectIndex(2);
}
else if (sender == _button)
{
_segmentedControl.SelectIndex(3);
}
else
{
_segmentedControl.DeselectAll();
}
};
_button.Clicked += async(object sender, EventArgs e) =>
{
if (modal)
{
await Navigation.PopModalAsync();
}
else
{
await Navigation.PopAsync();
}
};
// NOTE: The only elements that change the focus are Entry and Editor. As such, if we want to change focus when a user takes an action other then selecting an Editor or Entry, we have change the focus ourselves.
var labelGestureListener = FormsGestures.Listener.For(_label);
labelGestureListener.Tapped += (s, e) => _label.HardwareKeyFocus();
// NOTE: The only elements that change the focus are Entry and Editor. As such, if we want to change focus when a user takes an action other then selecting an Editor or Entry, we have change the focus ourselves.
var pageGestureListener = FormsGestures.Listener.For(this);
pageGestureListener.Tapped += (s, e) => Forms9Patch.HardwareKeyPage.FocusedElement = null;
#endregion
}
public EmbeddedResourceFontEffectPage()
{
Forms9Patch.EmbeddedResourceFontEffect.ApplyTo(_label);
_editor.Effects.Add(new Forms9Patch.EmbeddedResourceFontEffect());
_entry.Effects.Add(new Forms9Patch.EmbeddedResourceFontEffect());
Forms9Patch.SegmentedControl segmentedControl = new SegmentedControl
{
Margin = new Thickness(10, 0),
FontFamily = "Forms9PatchDemo.Resources.Fonts.Pacifico.ttf",
Segments =
{
new Forms9Patch.Segment("label"),
new Forms9Patch.Segment("editor"),
new Forms9Patch.Segment("entry"),
}
};
Content = new Xamarin.Forms.StackLayout
{
Children =
{
_label,
_editor,
_entry,
new Xamarin.Forms.Label {
Text = "Focus:"
},
segmentedControl
}
};
segmentedControl.SegmentTapped += (sender, e) =>
{
switch (e.Segment.Text)
{
case "label": _label.HardwareKeyFocus(); break;
case "editor": _editor.HardwareKeyFocus(); break;
case "entry": _entry.HardwareKeyFocus(); break;
}
};
HardwareKeyPage.FocusedElementChanged += (sender, e) =>
{
if (sender == _label)
{
segmentedControl.SelectIndex(0);
}
else if (sender == _editor)
{
segmentedControl.SelectIndex(1);
}
else if (sender == _entry)
{
segmentedControl.SelectIndex(2);
}
else
{
segmentedControl.DeselectAll();
}
};
_label.Focused += (sender, e) => System.Diagnostics.Debug.WriteLine("label.Focused " + e.IsFocused);
_editor.Focused += (sender, e) => System.Diagnostics.Debug.WriteLine("editor.Focused " + e.IsFocused);
_entry.Focused += (sender, e) => System.Diagnostics.Debug.WriteLine("entry.Focused " + e.IsFocused);
_label.Unfocused += (sender, e) => System.Diagnostics.Debug.WriteLine("label.Unfocused " + e.IsFocused);
_editor.Unfocused += (sender, e) => System.Diagnostics.Debug.WriteLine("editor.Unfocused " + e.IsFocused);
_entry.Unfocused += (sender, e) => System.Diagnostics.Debug.WriteLine("entry.Unfocused " + e.IsFocused);
_label.FocusChangeRequested += (object sender, FocusRequestArgs e) => System.Diagnostics.Debug.WriteLine("label.FocusChangeRequested ");
_editor.FocusChangeRequested += (object sender, FocusRequestArgs e) => System.Diagnostics.Debug.WriteLine("editor.FocusChangeRequested ");
_entry.FocusChangeRequested += (object sender, FocusRequestArgs e) => System.Diagnostics.Debug.WriteLine("entry.FocusChangeRequested ");
this.AddHardwareKeyListener("ç", OnHardwareKeyPressed);
this.AddHardwareKeyListener("é", OnHardwareKeyPressed);
this.AddHardwareKeyListener("ф", OnHardwareKeyPressed);
this.AddHardwareKeyListener("A", OnHardwareKeyPressed);
this.AddHardwareKeyListener("a", HardwareKeyModifierKeys.PlatformKey, OnHardwareKeyPressed);
this.AddHardwareKeyListener("a", HardwareKeyModifierKeys.Control, OnHardwareKeyPressed);
this.AddHardwareKeyListener("a", HardwareKeyModifierKeys.Alternate, OnHardwareKeyPressed);
this.AddHardwareKeyListener("a", HardwareKeyModifierKeys.CapsLock, OnHardwareKeyPressed);
this.AddHardwareKeyListener("a", HardwareKeyModifierKeys.FunctionKey, OnHardwareKeyPressed);
this.AddHardwareKeyListener("a", HardwareKeyModifierKeys.Shift, OnHardwareKeyPressed);
this.AddHardwareKeyListener("a", HardwareKeyModifierKeys.Shift | HardwareKeyModifierKeys.Alternate, OnHardwareKeyPressed);
this.AddHardwareKeyListener("a", HardwareKeyModifierKeys.Shift | HardwareKeyModifierKeys.Control, OnHardwareKeyPressed);
this.AddHardwareKeyListener("a", HardwareKeyModifierKeys.Shift | HardwareKeyModifierKeys.PlatformKey, OnHardwareKeyPressed);
this.AddHardwareKeyListener("a", HardwareKeyModifierKeys.Control | HardwareKeyModifierKeys.Alternate, OnHardwareKeyPressed);
this.AddHardwareKeyListener("a", HardwareKeyModifierKeys.Control | HardwareKeyModifierKeys.PlatformKey, OnHardwareKeyPressed);
this.AddHardwareKeyListener("5", OnHardwareKeyPressed);
this.AddHardwareKeyListener("5", HardwareKeyModifierKeys.NumericPadKey, OnHardwareKeyPressed);
this.AddHardwareKeyListener("5", HardwareKeyModifierKeys.PlatformKey, OnHardwareKeyPressed);
this.AddHardwareKeyListener("5", HardwareKeyModifierKeys.Control, OnHardwareKeyPressed);
this.AddHardwareKeyListener("5", HardwareKeyModifierKeys.Alternate, OnHardwareKeyPressed);
this.AddHardwareKeyListener("5", HardwareKeyModifierKeys.CapsLock, OnHardwareKeyPressed);
this.AddHardwareKeyListener("5", HardwareKeyModifierKeys.FunctionKey, OnHardwareKeyPressed);
this.AddHardwareKeyListener("5", HardwareKeyModifierKeys.Shift, OnHardwareKeyPressed);
this.AddHardwareKeyListener("/", OnHardwareKeyPressed);
this.AddHardwareKeyListener("/", HardwareKeyModifierKeys.Alternate, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.BackspaceDeleteKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.ForwardDeleteKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.InsertKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.TabKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.EnterReturnKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.PageUpKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.PageDownKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.HomeKeyInput, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.EndKeyInput, OnHardwareKeyPressed);
_entry.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, OnHardwareKeyPressed);
_entry.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, OnHardwareKeyPressed);
_entry.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, OnHardwareKeyPressed);
_entry.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, OnHardwareKeyPressed);
_entry.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, OnHardwareKeyPressed);
_editor.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, OnHardwareKeyPressed);
_editor.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, OnHardwareKeyPressed);
_editor.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, OnHardwareKeyPressed);
_editor.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, OnHardwareKeyPressed);
_editor.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, OnHardwareKeyPressed);
_label.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, OnHardwareKeyPressed);
_label.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, OnHardwareKeyPressed);
_label.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, OnHardwareKeyPressed);
_label.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, OnHardwareKeyPressed);
_label.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, OnHardwareKeyPressed);
}
public HardwareKeyPage()
{
var popup = new ModalPopup
{
Content = new Xamarin.Forms.Label {
Text = "Modal Popup!"
},
};
var popupButton = new Xamarin.Forms.Button {
Text = "Display Popup"
};
popupButton.Clicked += (sender, e) =>
{
popup.IsVisible = true;
};
popup.Appearing += (sender, e) => Forms9Patch.HardwareKeyPage.DefaultFocusedElement = popup;
popup.Disappearing += (sender, e) => Forms9Patch.HardwareKeyPage.DefaultFocusedElement = this;
/* IMPORTANT NOTE TO DEVELOPERS USING HARDWARE KEY LISTENING
* In order to make Hardware Key Listening to work, Forms9Patch needs
* to keep up with when a Xamarin.Forms.VisualElement has been focused
* or unfocused.
*
* Unfortunately, Xamarin.Forms does not provide a global way
* to monitor this so Forms9Patch uses the HardwareKeyPage element as
* a way to initiate the monitoring of focus changes on all of it's
* descendents in the visual tree. To do this, Forms9Patch adds a Focused
* and Unfocused event handler to all these descendents. For iOS and UWP,
* this is no big deal. For Android, like almost everything, this is a big
* deal in that it can have a negative impact on performance. If this is
* important to you, please read on.
*
* To address this performance issue, you will need to tweek the
* Xmarin.Forms source code just a teeny-tiny bit adn then use your
* now customied code instead of the off-the-shelf NuGet packages.
* In particular, below are additions to the Xamarin.Forms.VisualElement class
* in the Xamarin.Forms.Core.VisualElement.cs file:
*
* public static event EventHandler<VisualElement> FocusChanged;
*
* static VisualElement _currentlyFocused;
* public static VisualElement CurrentlyFocused
* {
* get => _currentlyFocused;
* private set
* {
* if (_currentlyFocused != value)
* {
* var wasFocused = _currentlyFocused;
* _currentlyFocused = value;
* FocusChanged?.Invoke(wasFocused, _currentlyFocused);
* }
* }
* }
*
* protected override void OnPropertyChanged([CallerMemberName] string propertyName = null)
* {
* base.OnPropertyChanged(propertyName);
* if (propertyName == IsFocusedProperty.PropertyName)
* {
* if (IsFocused)
* CurrentlyFocused = this;
* else if (CurrentlyFocused == this)
* CurrentlyFocused = null;
* }
* }
*
* Upon instantiation, Forms9Patch.HardwareKeyListener will use reflection
* to look for the above changes. If it finds them, it will use the above
* code to monitor the focus, rather than adding a bunch of event listeneres.
*
*/
#region Hardware Key Listeners
#region ... for this HardwareKeyPage
this.AddHardwareKeyListener("ç", OnHardwareKeyPressed);
this.AddHardwareKeyListener("é", OnHardwareKeyPressed);
this.AddHardwareKeyListener("ф", OnHardwareKeyPressed);
this.AddHardwareKeyListener("A", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("Q", HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener("`", OnHardwareKeyPressed);
this.AddHardwareKeyListener("~", OnHardwareKeyPressed);
this.AddHardwareKeyListener("1", OnHardwareKeyPressed);
this.AddHardwareKeyListener("!", OnHardwareKeyPressed);
this.AddHardwareKeyListener("2", OnHardwareKeyPressed);
this.AddHardwareKeyListener("@", OnHardwareKeyPressed);
this.AddHardwareKeyListener("3", OnHardwareKeyPressed);
this.AddHardwareKeyListener("#", OnHardwareKeyPressed);
this.AddHardwareKeyListener("4", OnHardwareKeyPressed);
this.AddHardwareKeyListener("$", OnHardwareKeyPressed);
this.AddHardwareKeyListener("5", OnHardwareKeyPressed);
this.AddHardwareKeyListener("%", OnHardwareKeyPressed);
this.AddHardwareKeyListener("6", OnHardwareKeyPressed);
this.AddHardwareKeyListener("^", OnHardwareKeyPressed);
this.AddHardwareKeyListener("7", OnHardwareKeyPressed);
this.AddHardwareKeyListener("&", OnHardwareKeyPressed);
this.AddHardwareKeyListener("8", OnHardwareKeyPressed);
this.AddHardwareKeyListener("*", OnHardwareKeyPressed);
this.AddHardwareKeyListener("9", OnHardwareKeyPressed);
this.AddHardwareKeyListener("(", OnHardwareKeyPressed);
this.AddHardwareKeyListener("0", OnHardwareKeyPressed);
this.AddHardwareKeyListener(")", OnHardwareKeyPressed);
this.AddHardwareKeyListener("-", OnHardwareKeyPressed);
this.AddHardwareKeyListener("_", OnHardwareKeyPressed);
this.AddHardwareKeyListener("+", OnHardwareKeyPressed);
this.AddHardwareKeyListener("=", OnHardwareKeyPressed);
this.AddHardwareKeyListener("0", OnHardwareKeyPressed);
this.AddHardwareKeyListener(")", OnHardwareKeyPressed);
this.AddHardwareKeyListener("[", OnHardwareKeyPressed);
this.AddHardwareKeyListener("{", OnHardwareKeyPressed);
this.AddHardwareKeyListener("]", OnHardwareKeyPressed);
this.AddHardwareKeyListener("}", OnHardwareKeyPressed);
this.AddHardwareKeyListener("\\", OnHardwareKeyPressed);
this.AddHardwareKeyListener("|", OnHardwareKeyPressed);
this.AddHardwareKeyListener(";", OnHardwareKeyPressed);
this.AddHardwareKeyListener(":", OnHardwareKeyPressed);
this.AddHardwareKeyListener("'", OnHardwareKeyPressed);
this.AddHardwareKeyListener("\"", OnHardwareKeyPressed);
this.AddHardwareKeyListener(",", OnHardwareKeyPressed);
this.AddHardwareKeyListener("<", OnHardwareKeyPressed);
this.AddHardwareKeyListener(".", OnHardwareKeyPressed);
this.AddHardwareKeyListener(">", OnHardwareKeyPressed);
this.AddHardwareKeyListener("/", OnHardwareKeyPressed);
this.AddHardwareKeyListener("?", OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.BackspaceDeleteKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.ForwardDeleteKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.InsertKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.TabKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.EnterReturnKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.PageUpKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.PageDownKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.HomeKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
this.AddHardwareKeyListener(HardwareKey.EndKeyInput, HardwareKeyModifierKeys.Any, OnHardwareKeyPressed);
#endregion
#region ... for _entry
_entry.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, OnHardwareKeyPressed);
_entry.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, OnHardwareKeyPressed);
_entry.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, OnHardwareKeyPressed);
_entry.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, OnHardwareKeyPressed);
_entry.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, OnHardwareKeyPressed);
#endregion
#region ... for _editor
_editor.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, OnHardwareKeyPressed);
_editor.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, OnHardwareKeyPressed);
_editor.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, OnHardwareKeyPressed);
_editor.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, OnHardwareKeyPressed);
_editor.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, OnHardwareKeyPressed);
#endregion
#region ... for _label
_label.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, OnHardwareKeyPressed);
_label.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, OnHardwareKeyPressed);
_label.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, OnHardwareKeyPressed);
_label.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, OnHardwareKeyPressed);
_label.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, OnHardwareKeyPressed);
#endregion
#region ... for _modal
_modalButton.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, OnHardwareKeyPressed);
_modalButton.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, OnHardwareKeyPressed);
_modalButton.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, OnHardwareKeyPressed);
_modalButton.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, OnHardwareKeyPressed);
_modalButton.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, OnHardwareKeyPressed);
#endregion
#region ... for _modal
popup.AddHardwareKeyListener(HardwareKey.UpArrowKeyInput, OnHardwareKeyPressed);
popup.AddHardwareKeyListener(HardwareKey.DownArrowKeyInput, OnHardwareKeyPressed);
popup.AddHardwareKeyListener(HardwareKey.LeftArrowKeyInput, OnHardwareKeyPressed);
popup.AddHardwareKeyListener(HardwareKey.RightArrowKeyInput, OnHardwareKeyPressed);
popup.AddHardwareKeyListener(HardwareKey.EscapeKeyInput, OnHardwareKeyPressed);
#endregion
#endregion
#region Layout
Padding = new Thickness(5, 25, 5, 5);
Content = new Xamarin.Forms.ScrollView
{
Content = new Xamarin.Forms.StackLayout
{
Children =
{
_label,
_editor,
_entry,
_modalButton,
_navButton,
new Xamarin.Forms.Label {
Text = "Focus:"
},
_segmentedControl,
new BoxView {
Color = Color.Black,HeightRequest = 2
},
_focusLabel,
new BoxView {
Color = Color.Black,HeightRequest = 2
},
_defaultFocusLabel,
new BoxView {
Color = Color.Black,HeightRequest = 2
},
_inputLabel,
_modifiersLabel,
_keyboardType,
popupButton,
}
}
};
_defaultFocusLabel.Text = "HardwareKeyPage.DefaultFocusedElement: " + Forms9Patch.HardwareKeyPage.DefaultFocusedElement;
#endregion
#region event handlers
// NOTE: The only elements that change the focus are Entry and Editor. As such, if we want to change focus when a user takes an action other then selecting an Editor or Entry, we have change the focus ourselves.
_segmentedControl.SegmentTapped += (sender, e) =>
{
switch (e.Segment.Text)
{
case "label": _label.HardwareKeyFocus(); break;
case "editor": _editor.HardwareKeyFocus(); break;
case "entry": _entry.HardwareKeyFocus(); break;
case "button": _modalButton.HardwareKeyFocus(); break;
}
};
Forms9Patch.HardwareKeyPage.FocusedElementChanged += (sender, e) =>
{
_defaultFocusLabel.Text = "HardwareKeyPage.DefaultFocusedElement: " + Forms9Patch.HardwareKeyPage.DefaultFocusedElement;
_focusLabel.Text = "HardwareKeyPage.FocusedElement: " + sender;
if (sender == _label)
{
_segmentedControl.SelectIndex(0);
}
else if (sender == _editor)
{
_segmentedControl.SelectIndex(1);
}
else if (sender == _entry)
{
_segmentedControl.SelectIndex(2);
}
else if (sender == _modalButton)
{
_segmentedControl.SelectIndex(3);
}
else
{
_segmentedControl.DeselectAll();
}
};
_modalButton.Clicked += async(object sender, EventArgs e) =>
{
var page1 = new HardwareKeyPage1(true);
await Navigation.PushModalAsync(page1);
//await Navigation.PushAsync(page1);
};
_navButton.Clicked += async(object sender, EventArgs e) =>
{
var page1 = new HardwareKeyPage1(false);
//await Navigation.PushModalAsync(page1);
await Navigation.PushAsync(page1);
};
// NOTE: The only elements that change the focus are Entry and Editor. As such, if we want to change focus when a user takes an action other then selecting an Editor or Entry, we have change the focus ourselves.
var labelGestureListener = FormsGestures.Listener.For(_label);
labelGestureListener.Tapped += (s, e) =>
{
_label.HardwareKeyFocus();
e.Handled = true;
};
// NOTE: The only elements that change the focus are Entry and Editor. As such, if we want to change focus when a user takes an action other then selecting an Editor or Entry, we have change the focus ourselves.
var pageGestureListener = FormsGestures.Listener.For(this);
pageGestureListener.Tapped += (s, e) => Forms9Patch.HardwareKeyPage.FocusedElement = null;
#endregion
}
