protected override TextInputLayout CreateNativeControl()
{
var textInputLayout = new TextInputLayout(Context);
var autoComplete = new AppCompatAutoCompleteTextView(Context)
{
BackgroundTintList = ColorStateList.ValueOf(GetPlaceholderColor()),
Text = Element?.Text,
Hint = Element?.Placeholder,
};
GradientDrawable gd = new GradientDrawable();
gd.SetColor(global::Android.Graphics.Color.Transparent);
autoComplete.SetBackground(gd);
if (Element != null)
{
autoComplete.SetHintTextColor(Element.PlaceholderColor.ToAndroid());
autoComplete.SetTextColor(Element.TextColor.ToAndroid());
}
textInputLayout.AddView(autoComplete);
return(textInputLayout);
}
protected virtual void LoadView(SearchHandler searchHandler)
{
var query = searchHandler.Query;
var placeholder = searchHandler.Placeholder;
LP lp;
var context = Context;
_cardView = new CardView(context);
using (lp = new LayoutParams(LP.MatchParent, LP.MatchParent))
_cardView.LayoutParameters = lp;
var linearLayout = new LinearLayout(context);
using (lp = new LP(LP.MatchParent, LP.MatchParent))
linearLayout.LayoutParameters = lp;
linearLayout.Orientation = Orientation.Horizontal;
_cardView.AddView(linearLayout);
int padding = (int)context.ToPixels(8);
_searchButton = CreateImageButton(context, searchHandler, SearchHandler.QueryIconProperty, Resource.Drawable.abc_ic_search_api_material, padding, 0);
lp = new LinearLayout.LayoutParams(0, LP.MatchParent)
{
Gravity = GravityFlags.Fill,
Weight = 1
};
_textBlock = new AppCompatAutoCompleteTextView(context)
{
LayoutParameters = lp,
Text = query,
Hint = placeholder,
ImeOptions = ImeAction.Done
};
lp.Dispose();
_textBlock.Enabled = searchHandler.IsSearchEnabled;
_textBlock.SetBackground(null);
_textBlock.SetPadding(padding, 0, padding, 0);
_textBlock.SetSingleLine(true);
_textBlock.Threshold = 1;
_textBlock.Adapter = new ShellSearchViewAdapter(SearchHandler, _shellContext);
_textBlock.ItemClick += OnTextBlockItemClicked;
_textBlock.SetDropDownBackgroundDrawable(new ClipDrawableWrapper(_textBlock.DropDownBackground));
// A note on accessibility. The _textBlocks hint is what android defaults to reading in the screen
// reader. Therefor we do not need to set something else.
_clearButton = CreateImageButton(context, searchHandler, SearchHandler.ClearIconProperty, Resource.Drawable.abc_ic_clear_material, 0, padding);
_clearPlaceholderButton = CreateImageButton(context, searchHandler, SearchHandler.ClearPlaceholderIconProperty, -1, 0, padding);
linearLayout.AddView(_searchButton);
linearLayout.AddView(_textBlock);
linearLayout.AddView(_clearButton);
linearLayout.AddView(_clearPlaceholderButton);
UpdateClearButtonState();
// hook all events down here to avoid getting events while doing setup
searchHandler.PropertyChanged += OnSearchHandlerPropertyChanged;
_textBlock.AddTextChangedListener(this);
_textBlock.SetOnEditorActionListener(this);
_clearButton.Click += OnClearButtonClicked;
_clearPlaceholderButton.Click += OnClearPlaceholderButtonClicked;
_searchButton.Click += OnSearchButtonClicked;
AddView(_cardView);
linearLayout.Dispose();
}
