protected override void OnElementChanged(ElementChangedEventArgs <Button> e)
{
base.OnElementChanged(e);
if (e.OldElement == null)
{
AButton button = Control;
if (button == null)
{
button = CreateNativeControl();
button.SetOnClickListener(ButtonClickListener.Instance.Value);
button.SetOnTouchListener(ButtonTouchListener.Instance.Value);
button.Tag = this;
SetNativeControl(button);
_textColorSwitcher = new TextColorSwitcher(button.TextColors);
button.AddOnAttachStateChangeListener(this);
}
}
else
{
if (_drawableEnabled)
{
_drawableEnabled = false;
_backgroundDrawable.Reset();
_backgroundDrawable = null;
}
}
UpdateAll();
}
protected override void OnElementChanged(ElementChangedEventArgs <Picker> e)
{
if (e.OldElement != null)
{
((INotifyCollectionChanged)e.OldElement.Items).CollectionChanged -= RowsCollectionChanged;
}
if (e.NewElement != null)
{
((INotifyCollectionChanged)e.NewElement.Items).CollectionChanged += RowsCollectionChanged;
if (Control == null)
{
var textField = CreateNativeControl();
var useLegacyColorManagement = e.NewElement.UseLegacyColorManagement();
_textColorSwitcher = new TextColorSwitcher(textField.TextColors, useLegacyColorManagement);
SetNativeControl(textField);
_originalHintTextColor = Control.CurrentHintTextColor;
}
UpdateFont();
UpdatePicker();
UpdateTextColor();
}
base.OnElementChanged(e);
}
protected override void OnElementChanged(ElementChangedEventArgs <Picker> e)
{
if (e.OldElement != null)
{
((ObservableList <string>)e.OldElement.Items).CollectionChanged -= RowsCollectionChanged;
}
if (e.NewElement != null)
{
((ObservableList <string>)e.NewElement.Items).CollectionChanged += RowsCollectionChanged;
if (Control == null)
{
var textField = new EditText(Context)
{
Focusable = false, Clickable = true, Tag = this
};
textField.SetOnClickListener(PickerListener.Instance);
_textColorSwitcher = new TextColorSwitcher(textField.TextColors);
SetNativeControl(textField);
}
UpdatePicker();
UpdateTextColor();
}
base.OnElementChanged(e);
}
protected override void OnElementChanged(ElementChangedEventArgs <Picker> e)
{
if (e.OldElement != null)
{
((INotifyCollectionChanged)e.OldElement.Items).CollectionChanged -= RowsCollectionChanged;
}
if (e.NewElement != null)
{
((INotifyCollectionChanged)e.NewElement.Items).CollectionChanged += RowsCollectionChanged;
if (Control == null)
{
var textField = CreateNativeControl();
textField.SetOnClickListener(PickerListener.Instance);
_textColorSwitcher = new TextColorSwitcher(textField.TextColors);
SetNativeControl(textField);
}
UpdateFont();
UpdatePicker();
UpdateTextColor();
}
base.OnElementChanged(e);
}
protected override void OnElementChanged(ElementChangedEventArgs <Button> e)
{
base.OnElementChanged(e);
if (e.OldElement == null)
{
AButton button = Control;
if (button == null)
{
button = CreateNativeControl();
button.SetOnClickListener(ButtonClickListener.Instance.Value);
button.SetOnTouchListener(ButtonTouchListener.Instance.Value);
button.Tag = this;
SetNativeControl(button);
var useLegacyColorManagement = e.NewElement.UseLegacyColorManagement();
_textColorSwitcher = new TextColorSwitcher(button.TextColors, useLegacyColorManagement);
button.AddOnAttachStateChangeListener(this);
}
}
if (_backgroundTracker == null)
{
_backgroundTracker = new ButtonBackgroundTracker(Element, Control);
}
else
{
_backgroundTracker.Button = e.NewElement;
}
UpdateAll();
}
protected override void OnElementChanged(ElementChangedEventArgs <TimePicker> e)
{
base.OnElementChanged(e);
if (e.OldElement == null)
{
var textField = CreateNativeControl();
textField.SetOnClickListener(TimePickerListener.Instance);
SetNativeControl(textField);
var useLegacyColorManagement = e.NewElement.UseLegacyColorManagement();
_textColorSwitcher = new TextColorSwitcher(textField.TextColors, useLegacyColorManagement);
_is24HourFormat = DateFormat.Is24HourFormat(Context);
_timeFormat = _is24HourFormat ? "HH:mm" : Element.Format;
}
SetTime(e.NewElement.Time);
UpdateTextColor();
if ((int)Build.VERSION.SdkInt > 16)
{
Control.TextAlignment = global::Android.Views.TextAlignment.ViewStart;
}
}
protected override void OnElementChanged(ElementChangedEventArgs <Editor> e)
{
base.OnElementChanged(e);
HandleKeyboardOnFocus = true;
var edit = Control;
if (edit == null)
{
edit = CreateNativeControl();
SetNativeControl(edit);
edit.AddTextChangedListener(this);
edit.OnKeyboardBackPressed += OnKeyboardBackPressed;
var useLegacyColorManagement = e.NewElement.UseLegacyColorManagement();
_textColorSwitcher = new TextColorSwitcher(edit.TextColors, useLegacyColorManagement);
}
edit.SetSingleLine(false);
edit.Gravity = GravityFlags.Top;
if ((int)Build.VERSION.SdkInt > 16)
{
edit.TextAlignment = global::Android.Views.TextAlignment.ViewStart;
}
edit.SetHorizontallyScrolling(false);
UpdateText();
UpdateInputType();
UpdateTextColor();
UpdateFont();
}
protected override void OnElementChanged(ElementChangedEventArgs <Entry> e)
{
base.OnElementChanged(e);
HandleKeyboardOnFocus = true;
if (e.OldElement == null)
{
var textView = CreateNativeControl();
textView.AddTextChangedListener(this);
textView.SetOnEditorActionListener(this);
textView.OnKeyboardBackPressed += OnKeyboardBackPressed;
textView.SelectionChanged += SelectionChanged;
var useLegacyColorManagement = e.NewElement.UseLegacyColorManagement();
_textColorSwitcher = new TextColorSwitcher(textView.TextColors, useLegacyColorManagement);
_hintColorSwitcher = new TextColorSwitcher(textView.HintTextColors, useLegacyColorManagement);
SetNativeControl(textView);
}
Control.Hint = Element.Placeholder;
Control.Text = Element.Text;
UpdateInputType();
UpdateColor();
UpdateAlignment();
UpdateFont();
UpdatePlaceholderColor();
UpdateMaxLength();
UpdateImeOptions();
UpdateReturnType();
UpdateCursorSelection();
}
protected override void OnElementChanged(ElementChangedEventArgs <SearchBar> e)
{
base.OnElementChanged(e);
SearchView searchView = Control;
var isDesigner = Context.IsDesignerContext();
if (searchView == null)
{
searchView = CreateNativeControl();
searchView.SetIconifiedByDefault(false);
// set Iconified calls onSearchClicked
// https://github.com/aosp-mirror/platform_frameworks_base/blob/6d891937a38220b0c712a1927f969e74bea3a0f3/core/java/android/widget/SearchView.java#L674-L680
// which causes requestFocus. The designer does not support focuses.
if (!isDesigner)
{
searchView.Iconified = false;
}
SetNativeControl(searchView);
_editText = _editText ?? Control.GetChildrenOfType <EditText>().FirstOrDefault();
if (_editText != null)
{
var useLegacyColorManagement = e.NewElement.UseLegacyColorManagement();
_textColorSwitcher = new TextColorSwitcher(_editText.TextColors, useLegacyColorManagement);
_hintColorSwitcher = new TextColorSwitcher(_editText.HintTextColors, useLegacyColorManagement);
}
}
if (!isDesigner)
{
ClearFocus(searchView);
}
UpdateInputType();
UpdatePlaceholder();
UpdateText();
UpdateEnabled();
UpdateCancelButtonColor();
UpdateFont();
UpdateHorizontalTextAlignment();
UpdateVerticalTextAlignment();
UpdateTextColor();
UpdateCharacterSpacing();
UpdatePlaceholderColor();
UpdateMaxLength();
if (e.OldElement == null)
{
searchView.SetOnQueryTextListener(this);
searchView.SetOnQueryTextFocusChangeListener(this);
}
}
protected override void OnElementChanged(ElementChangedEventArgs <SearchBar> e)
{
base.OnElementChanged(e);
HandleKeyboardOnFocus = true;
SearchView searchView = Control;
if (searchView == null)
{
searchView = CreateNativeControl();
searchView.SetIconifiedByDefault(false);
searchView.Iconified = false;
SetNativeControl(searchView);
_editText = _editText ?? Control.GetChildrenOfType <EditText>().FirstOrDefault();
if (_editText != null)
{
var useLegacyColorManagement = e.NewElement.UseLegacyColorManagement();
_textColorSwitcher = new TextColorSwitcher(_editText.TextColors, useLegacyColorManagement);
_hintColorSwitcher = new TextColorSwitcher(_editText.HintTextColors, useLegacyColorManagement);
}
}
BuildVersionCodes androidVersion = Build.VERSION.SdkInt;
if (androidVersion >= BuildVersionCodes.JellyBean)
{
_inputType = searchView.InputType;
}
else
{
// < API 16, Cannot get the default InputType for a SearchView
_inputType = InputTypes.ClassText | InputTypes.TextFlagAutoComplete | InputTypes.TextFlagNoSuggestions;
}
ClearFocus(searchView);
UpdatePlaceholder();
UpdateText();
UpdateEnabled();
UpdateCancelButtonColor();
UpdateFont();
UpdateAlignment();
UpdateTextColor();
UpdatePlaceholderColor();
if (e.OldElement == null)
{
searchView.SetOnQueryTextListener(this);
searchView.SetOnQueryTextFocusChangeListener(this);
}
}
public SearchHandlerAppearanceTracker(IShellSearchView searchView)
{
_searchHandler = searchView.SearchHandler;
_control = searchView.View;
_searchHandler.PropertyChanged += SearchHandlerPropertyChanged;
_searchHandler.FocusChangeRequested += SearchHandlerFocusChangeRequested;
_editText = (_control as ViewGroup).GetChildrenOfType <EditText>().FirstOrDefault();
_textColorSwitcher = new TextColorSwitcher(_editText.TextColors, false);
_hintColorSwitcher = new TextColorSwitcher(_editText.HintTextColors, false);
UpdateSearchBarColors();
UpdateFont();
UpdateTextAlignment();
UpdateInputType();
}
protected override void OnElementChanged(ElementChangedEventArgs <TimePicker> e)
{
base.OnElementChanged(e);
if (e.OldElement == null)
{
var textField = CreateNativeControl();
textField.SetOnClickListener(TimePickerListener.Instance);
SetNativeControl(textField);
_textColorSwitcher = new TextColorSwitcher(textField.TextColors);
}
SetTime(e.NewElement.Time);
UpdateTextColor();
}
protected override void OnElementChanged(ElementChangedEventArgs <Entry> e)
{
base.OnElementChanged(e);
if (e.OldElement == null)
{
SetNativeControl(CreateNativeControl());
EditText.AddTextChangedListener(this);
EditText.SetOnEditorActionListener(this);
if (EditText is IFormsEditText formsEditText)
{
formsEditText.OnKeyboardBackPressed += OnKeyboardBackPressed;
formsEditText.SelectionChanged += SelectionChanged;
}
var useLegacyColorManagement = e.NewElement.UseLegacyColorManagement();
_textColorSwitcher = new TextColorSwitcher(EditText.TextColors, useLegacyColorManagement);
_hintColorSwitcher = new TextColorSwitcher(EditText.HintTextColors, useLegacyColorManagement);
}
// When we set the control text, it triggers the SelectionChanged event, which updates CursorPosition and SelectionLength;
// These one-time-use variables will let us initialize a CursorPosition and SelectionLength via ctor/xaml/etc.
_cursorPositionChangePending = Element.IsSet(Entry.CursorPositionProperty);
_selectionLengthChangePending = Element.IsSet(Entry.SelectionLengthProperty);
UpdatePlaceHolderText();
EditText.Text = Element.Text;
UpdateInputType();
UpdateColor();
UpdateAlignment();
UpdateFont();
UpdatePlaceholderColor();
UpdateMaxLength();
UpdateImeOptions();
UpdateReturnType();
UpdateIsReadOnly();
if (_cursorPositionChangePending || _selectionLengthChangePending)
{
UpdateCursorSelection();
}
}
protected override void OnElementChanged(ElementChangedEventArgs <DatePicker> e)
{
base.OnElementChanged(e);
if (e.OldElement == null)
{
var textField = CreateNativeControl();
textField.SetOnClickListener(TextFieldClickHandler.Instance);
SetNativeControl(textField);
_textColorSwitcher = new TextColorSwitcher(textField.TextColors);
}
SetDate(Element.Date);
UpdateMinimumDate();
UpdateMaximumDate();
UpdateTextColor();
}
protected override void OnElementChanged(ElementChangedEventArgs <TimePicker> e)
{
base.OnElementChanged(e);
if (e.OldElement == null)
{
var textField = new EditText(Context)
{
Focusable = false, Clickable = true, Tag = this
};
textField.SetOnClickListener(TimePickerListener.Instance);
SetNativeControl(textField);
_textColorSwitcher = new TextColorSwitcher(textField.TextColors);
}
SetTime(e.NewElement.Time);
UpdateTextColor();
}
protected override void OnElementChanged(ElementChangedEventArgs <SearchBar> e)
{
base.OnElementChanged(e);
SearchView searchView = Control;
if (searchView == null)
{
searchView = CreateNativeControl();
searchView.SetIconifiedByDefault(false);
searchView.Iconified = false;
SetNativeControl(searchView);
_editText = _editText ?? Control.GetChildrenOfType <EditText>().FirstOrDefault();
if (_editText != null)
{
var useLegacyColorManagement = e.NewElement.UseLegacyColorManagement();
_textColorSwitcher = new TextColorSwitcher(_editText.TextColors, useLegacyColorManagement);
_hintColorSwitcher = new TextColorSwitcher(_editText.HintTextColors, useLegacyColorManagement);
}
}
ClearFocus(searchView);
UpdateInputType();
UpdatePlaceholder();
UpdateText();
UpdateEnabled();
UpdateCancelButtonColor();
UpdateFont();
UpdateHorizontalTextAlignment();
UpdateVerticalTextAlignment();
UpdateTextColor();
UpdateCharacterSpacing();
UpdatePlaceholderColor();
UpdateMaxLength();
if (e.OldElement == null)
{
searchView.SetOnQueryTextListener(this);
searchView.SetOnQueryTextFocusChangeListener(this);
}
}
protected override void OnElementChanged(ElementChangedEventArgs <DatePicker> e)
{
base.OnElementChanged(e);
if (e.OldElement == null)
{
var textField = CreateNativeControl();
SetNativeControl(textField);
var useLegacyColorManagement = e.NewElement.UseLegacyColorManagement();
_textColorSwitcher = new TextColorSwitcher(textField.TextColors, useLegacyColorManagement);
}
SetDate(Element.Date);
UpdateFont();
UpdateMinimumDate();
UpdateMaximumDate();
UpdateTextColor();
}
protected override void OnElementChanged(ElementChangedEventArgs <Editor> e)
{
base.OnElementChanged(e);
var edit = Control;
if (edit == null)
{
edit = CreateNativeControl();
SetNativeControl(edit);
edit.AddTextChangedListener(this);
if (edit is IFormsEditText formsEditText)
{
formsEditText.OnKeyboardBackPressed += OnKeyboardBackPressed;
}
var useLegacyColorManagement = e.NewElement.UseLegacyColorManagement();
_textColorSwitcher = new TextColorSwitcher(edit.TextColors, useLegacyColorManagement);
defaultPlaceholdercolor = Control.HintTextColors;
}
edit.SetSingleLine(false);
edit.Gravity = GravityFlags.Top;
if ((int)Build.VERSION.SdkInt > 16)
{
edit.TextAlignment = global::Android.Views.TextAlignment.ViewStart;
}
edit.SetHorizontallyScrolling(false);
UpdateText();
UpdateInputType();
UpdateTextColor();
UpdateFont();
UpdateMaxLength();
UpdatePlaceholderColor();
UpdatePlaceholderText();
UpdateIsReadOnly();
}
protected override void OnElementChanged(ElementChangedEventArgs <DatePicker> e)
{
base.OnElementChanged(e);
if (e.OldElement == null)
{
var textField = CreateNativeControl();
textField.SetOnClickListener(TextFieldClickHandler.Instance);
textField.InputType = InputTypes.Null;
textField.KeyPress += TextFieldKeyPress;
SetNativeControl(textField);
var useLegacyColorManagement = e.NewElement.UseLegacyColorManagement();
_textColorSwitcher = new TextColorSwitcher(textField.TextColors, useLegacyColorManagement);
}
SetDate(Element.Date);
UpdateFont();
UpdateMinimumDate();
UpdateMaximumDate();
UpdateTextColor();
}
protected override void UpdateTextColor()
{
_textColorSwitcher = _textColorSwitcher ?? new TextColorSwitcher(EditText.TextColors, Element.UseLegacyColorManagement());
_textColorSwitcher.UpdateTextColor(EditText, Element.TextColor);
}
protected override void UpdatePlaceholderColor()
{
_hintColorSwitcher = _hintColorSwitcher ?? new TextColorSwitcher(EditText.HintTextColors, Element.UseLegacyColorManagement());
_hintColorSwitcher.UpdateTextColor(EditText, Element.PlaceholderColor, EditText.SetHintTextColor);
}