/// <summary>
/// Creates the initial layout for the app
/// </summary>
private void CreateLayout()
{
// Set the text on the two buttons
_mySearchButton.SetTitle("Search All", UIControlState.Normal);
_mySearchRestrictedButton.SetTitle("Search in View", UIControlState.Normal);
// Set the default location and search text
_myLocationBox.Text = "Current Location";
_mySearchBox.Text = "Coffee";
// Allow pressing 'return' to dismiss the keyboard
_myLocationBox.ShouldReturn += (textField) => { textField.ResignFirstResponder(); return(true); };
_mySearchBox.ShouldReturn += (textField) => { textField.ResignFirstResponder(); return(true); };
// Gray out the buttons when they are disabled
_mySearchButton.SetTitleColor(UIColor.Gray, UIControlState.Disabled);
_mySearchRestrictedButton.SetTitleColor(UIColor.Gray, UIControlState.Disabled);
// Change button color when enabled
_mySearchButton.SetTitleColor(UIColor.Blue, UIControlState.Normal);
_mySearchRestrictedButton.SetTitleColor(UIColor.Blue, UIControlState.Normal);
// Color the textboxes and buttons to appear over the mapview
UIColor background = UIColor.FromWhiteAlpha(.85f, .95f);
_mySearchBox.BackgroundColor = background;
_myLocationBox.BackgroundColor = background;
_mySearchButton.BackgroundColor = background;
_mySearchRestrictedButton.BackgroundColor = background;
_myProgressBar.BackgroundColor = background;
// Hide the activity indicator (progress bar) when stopped
_myProgressBar.HidesWhenStopped = true;
// Set radii to make it look nice
_mySearchRestrictedButton.Layer.CornerRadius = 5;
_mySearchButton.Layer.CornerRadius = 5;
_myLocationBox.Layer.CornerRadius = 5;
_mySearchBox.Layer.CornerRadius = 5;
// Make sure the suggestion list is hidden by default
_mySuggestionView.Hidden = true;
// Create the suggestion source
_mySuggestionSource = new SuggestionSource(null, this);
// Set the source for the table view
_mySuggestionView.Source = _mySuggestionSource;
// Enable tap-for-info pattern on results
_myMapView.GeoViewTapped += _myMapView_GeoViewTapped;
// Listen for taps on the search buttons
_mySearchButton.TouchUpInside += _mySearchButton_Clicked;
_mySearchRestrictedButton.TouchUpInside += _mySearchRestrictedButton_Click;
// Listen for text-changed events
_mySearchBox.AllEditingEvents += _mySearchBox_TextChanged;
_myLocationBox.AllEditingEvents += _myLocationBox_TextChanged;
// Add the views
View.AddSubviews(_myMapView, _mySearchBox, _myLocationBox, _mySearchButton, _mySearchRestrictedButton, _myProgressBar, _mySuggestionView);
}
public override void LoadView()
{
// Create the views.
View = new UIView {
BackgroundColor = UIColor.White
};
_myMapView = new MapView();
_myMapView.TranslatesAutoresizingMaskIntoConstraints = false;
UIView formContainer = new UIView {
BackgroundColor = UIColor.FromWhiteAlpha(1f, .8f)
};
formContainer.TranslatesAutoresizingMaskIntoConstraints = false;
_searchBox = new UITextField();
_searchBox.TranslatesAutoresizingMaskIntoConstraints = false;
_searchBox.Text = "Coffee";
_searchBox.BorderStyle = UITextBorderStyle.RoundedRect;
_searchBox.LeftView = new UIView(new CGRect(0, 0, 5, 20));
_searchBox.LeftViewMode = UITextFieldViewMode.Always;
_locationBox = new UITextField();
_locationBox.TranslatesAutoresizingMaskIntoConstraints = false;
_locationBox.Text = "Current location";
_locationBox.BorderStyle = UITextBorderStyle.RoundedRect;
_locationBox.LeftView = new UIView(new CGRect(0, 0, 5, 20));
_locationBox.LeftViewMode = UITextFieldViewMode.Always;
_searchButton = new UIButton(UIButtonType.RoundedRect);
_searchButton.BackgroundColor = UIColor.White;
_searchButton.TranslatesAutoresizingMaskIntoConstraints = false;
_searchButton.SetTitle("Search all", UIControlState.Normal);
_searchButton.SetTitleColor(UIColor.Gray, UIControlState.Disabled);
_searchButton.SetTitleColor(View.TintColor, UIControlState.Normal);
_searchButton.Layer.CornerRadius = 5;
_searchButton.Layer.BorderColor = View.TintColor.CGColor;
_searchButton.Layer.BorderWidth = 1;
_searchInViewButton = new UIButton(UIButtonType.RoundedRect);
_searchInViewButton.BackgroundColor = UIColor.White;
_searchInViewButton.TranslatesAutoresizingMaskIntoConstraints = false;
_searchInViewButton.SetTitle("Search in view", UIControlState.Normal);
_searchInViewButton.SetTitleColor(UIColor.Gray, UIControlState.Disabled);
_searchInViewButton.SetTitleColor(View.TintColor, UIControlState.Normal);
_searchInViewButton.Layer.CornerRadius = 5;
_searchInViewButton.Layer.BorderColor = View.TintColor.CGColor;
_searchInViewButton.Layer.BorderWidth = 1;
_activityView = new UIActivityIndicatorView(UIActivityIndicatorViewStyle.WhiteLarge);
_activityView.TranslatesAutoresizingMaskIntoConstraints = false;
_activityView.HidesWhenStopped = true;
_activityView.BackgroundColor = UIColor.FromWhiteAlpha(0, .5f);
_suggestionView = new UITableView();
_suggestionView.TranslatesAutoresizingMaskIntoConstraints = false;
_suggestionView.Hidden = true;
_mySuggestionSource = new SuggestionSource(null, this);
_suggestionView.Source = _mySuggestionSource;
_suggestionView.RowHeight = 24;
// Add the views.
View.AddSubviews(_myMapView, formContainer, _searchBox, _locationBox, _searchButton,
_searchInViewButton, _activityView, _suggestionView);
// Lay out the views.
NSLayoutConstraint.ActivateConstraints(new[]
{
_myMapView.TopAnchor.ConstraintEqualTo(formContainer.BottomAnchor),
_myMapView.LeadingAnchor.ConstraintEqualTo(View.LeadingAnchor),
_myMapView.TrailingAnchor.ConstraintEqualTo(View.TrailingAnchor),
_myMapView.BottomAnchor.ConstraintEqualTo(View.BottomAnchor),
_searchBox.TopAnchor.ConstraintEqualTo(View.SafeAreaLayoutGuide.TopAnchor, 8),
_searchBox.LeadingAnchor.ConstraintEqualTo(View.SafeAreaLayoutGuide.LeadingAnchor, 8),
_searchBox.TrailingAnchor.ConstraintEqualTo(View.SafeAreaLayoutGuide.TrailingAnchor, -8),
_locationBox.TopAnchor.ConstraintEqualTo(_searchBox.BottomAnchor, 8),
_locationBox.LeadingAnchor.ConstraintEqualTo(_searchBox.LeadingAnchor),
_locationBox.TrailingAnchor.ConstraintEqualTo(_searchBox.TrailingAnchor),
_searchButton.TopAnchor.ConstraintEqualTo(_locationBox.BottomAnchor, 8),
_searchButton.LeadingAnchor.ConstraintEqualTo(_searchBox.LeadingAnchor),
_searchButton.TrailingAnchor.ConstraintEqualTo(View.CenterXAnchor, -4),
_searchButton.HeightAnchor.ConstraintEqualTo(32),
_searchInViewButton.TopAnchor.ConstraintEqualTo(_searchButton.TopAnchor),
_searchInViewButton.LeadingAnchor.ConstraintEqualTo(View.CenterXAnchor, 4),
_searchInViewButton.TrailingAnchor.ConstraintEqualTo(_searchBox.TrailingAnchor),
_searchInViewButton.HeightAnchor.ConstraintEqualTo(32),
formContainer.TopAnchor.ConstraintEqualTo(View.SafeAreaLayoutGuide.TopAnchor),
formContainer.LeadingAnchor.ConstraintEqualTo(View.LeadingAnchor),
formContainer.TrailingAnchor.ConstraintEqualTo(View.TrailingAnchor),
formContainer.BottomAnchor.ConstraintEqualTo(_searchInViewButton.BottomAnchor, 8),
_activityView.TopAnchor.ConstraintEqualTo(View.SafeAreaLayoutGuide.TopAnchor),
_activityView.LeadingAnchor.ConstraintEqualTo(View.LeadingAnchor),
_activityView.TrailingAnchor.ConstraintEqualTo(View.TrailingAnchor),
_activityView.BottomAnchor.ConstraintEqualTo(View.BottomAnchor),
_suggestionView.TopAnchor.ConstraintEqualTo(formContainer.BottomAnchor, 8),
_suggestionView.LeadingAnchor.ConstraintEqualTo(_locationBox.LeadingAnchor, 8),
_suggestionView.TrailingAnchor.ConstraintEqualTo(_locationBox.TrailingAnchor, -8),
_suggestionView.HeightAnchor.ConstraintEqualTo(_suggestionView.RowHeight * 4)
});
}
private void CreateLayout()
{
// Set the text on the two buttons.
_searchButton.SetTitle("Search all", UIControlState.Normal);
_searchRestrictedButton.SetTitle("Search in view", UIControlState.Normal);
// Set the default location and search text.
_locationBox.Text = "Current location";
_searchBox.Text = "Coffee";
// Allow pressing 'return' to dismiss the keyboard.
_locationBox.ShouldReturn += textField =>
{
textField.ResignFirstResponder();
return(true);
};
_searchBox.ShouldReturn += textField =>
{
textField.ResignFirstResponder();
return(true);
};
// Gray out the buttons when they are disabled.
_searchButton.SetTitleColor(UIColor.Gray, UIControlState.Disabled);
_searchRestrictedButton.SetTitleColor(UIColor.Gray, UIControlState.Disabled);
// Change button color when enabled.
_searchButton.SetTitleColor(View.TintColor, UIControlState.Normal);
_searchRestrictedButton.SetTitleColor(View.TintColor, UIControlState.Normal);
// Hide the activity indicator (progress bar) when stopped.
_activityView.HidesWhenStopped = true;
_activityView.ActivityIndicatorViewStyle = UIActivityIndicatorViewStyle.WhiteLarge;
_activityView.BackgroundColor = UIColor.FromWhiteAlpha(0, .5f);
// Make the textboxes look nice.
_locationBox.BorderStyle = UITextBorderStyle.RoundedRect;
_searchBox.BorderStyle = UITextBorderStyle.RoundedRect;
// Make the buttons look nice.
_searchButton.Layer.CornerRadius = 5;
_searchRestrictedButton.Layer.CornerRadius = 5;
// Make sure the suggestion list is hidden by default.
_suggestionView.Hidden = true;
// Create the suggestion source.
_mySuggestionSource = new SuggestionSource(null, this);
// Set the source for the table view.
_suggestionView.Source = _mySuggestionSource;
// Enable tap-for-info pattern on results.
_myMapView.GeoViewTapped += MapView_GeoViewTapped;
// Listen for taps on the search buttons.
_searchButton.TouchUpInside += SearchButton_Touched;
_searchRestrictedButton.TouchUpInside += SearchRestrictedButton_Touched;
// Listen for text-changed events.
_searchBox.AllEditingEvents += SearchBox_TextChanged;
_locationBox.AllEditingEvents += LocationBox_TextChanged;
// Set padding on the text views.
_searchBox.LeftView = new UIView(new CGRect(0, 0, 5, 20));
_searchBox.LeftViewMode = UITextFieldViewMode.Always;
_locationBox.LeftView = new UIView(new CGRect(0, 0, 5, 20));
_locationBox.LeftViewMode = UITextFieldViewMode.Always;
// Add the views.
View.AddSubviews(_myMapView, _toolbar, _searchBox, _locationBox, _searchButton,
_searchRestrictedButton, _activityView, _suggestionView);
}