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 }