protected override void OnAppearing()
{
base.OnAppearing();
this._Drop1.OnSelected += Drop1Selected;
this._Drop2.OnSelected += Drop2Selected;
if (Device.OS == TargetPlatform.iOS)
{
DropDownPicker.AddTapEvents();
DropDownPicker.OnTapFrom += OnTapFrom;
}
}
protected override void OnDisappearing()
{
if (Device.OS == TargetPlatform.iOS)
{
DropDownPicker.OnTapFrom -= OnTapFrom;
DropDownPicker.RemoveEvents();
}
this._Drop1.OnSelected -= Drop1Selected;
this._Drop2.OnSelected -= Drop2Selected;
base.OnDisappearing();
}
public Page2()
{
_Button1 = new Button {
Text = "Test"
};
_Button2 = new Button {
Text = "Reload",
Command = new Command(() => {
ReloadData();
})
};
this._Drop1 = new DropDownPicker
{
WidthRequest = Device.OnPlatform(100, 120, 100),
HeightRequest = 25,
DropDownHeight = 150,
Title = "Boston",
SelectedText = "Boston",
FontSize = Device.OnPlatform(10, 14, 10),
CellHeight = 20,
SelectedBackgroundColor = Color.FromRgb(0, 70, 172),
SelectedTextColor = Color.White,
BorderColor = Color.Black,
ArrowColor = Color.Blue,
iOSHeaderText = "Locations",
iOSHeaderFontSize = 20,
iOSHeaderHeight = 40,
};
this._Drop2 = new DropDownPicker
{
WidthRequest = Device.OnPlatform(100, 120, 100),
HeightRequest = 25,
DropDownHeight = 150,
Title = "Area",
FontSize = Device.OnPlatform(10, 14, 10),
CellHeight = 20,
SelectedBackgroundColor = Color.FromRgb(0, 70, 172),
SelectedTextColor = Color.White
};
var data = new List <string> ();
data.Add("New York");
data.Add("San Francisco");
data.Add("Washington D.C.");
data.Add("San Diego");
data.Add("Orlando");
data.Add("Charleston");
data.Add("Boston");
data.Add("New Orleans");
data.Add("Las Vegas");
data.Add("Anchorage");
data.Add("California");
data.Add("Detroit");
data.Add("North.");
data.Add("South");
data.Add("Michigan");
data.Add("Nevada");
data.Add("Ohio");
data.Add("Lansing");
data.Add("Grand Rapids");
data.Add("Europe");
this._Drop1.Source = data;
this._Drop2.Source = data;
this.Content = new StackLayout {
HorizontalOptions = LayoutOptions.Start,
VerticalOptions = LayoutOptions.Start,
Children =
{
_Button1,
new StackLayout
{
Orientation = StackOrientation.Horizontal,
VerticalOptions = LayoutOptions.Start,
Children =
{
this._Drop1,
new Button
{
Text = "Button 1"
},
this._Drop2,
}
},
_Button2,
new Button
{
Text = "Pop Page",
Command = new Command(async() => {
await Navigation.PopAsync();
})
}
}
};
}
public Page2 ()
{
_Button1 = new Button {
Text = "Test"
};
_Button2 = new Button {
Text = "Reload",
Command = new Command( () => {
ReloadData();
})
};
this._Drop1 = new DropDownPicker
{
WidthRequest = Device.OnPlatform(100, 120, 100),
HeightRequest = 25,
DropDownHeight = 150,
Title = "Locations",
SelectedText = "",
FontSize = Device.OnPlatform(10, 14, 10),
CellHeight = 20,
SelectedBackgroundColor = Color.FromRgb (0, 70, 172),
SelectedTextColor = Color.White,
BorderColor = Color.Purple,
ArrowColor = Color.Blue
};
this._Drop2 = new DropDownPicker
{
WidthRequest = Device.OnPlatform(100, 120, 100),
HeightRequest = 25,
DropDownHeight = 150,
Title = "Area",
FontSize = Device.OnPlatform(10, 14, 10),
CellHeight = 20,
SelectedBackgroundColor = Color.FromRgb (0, 70, 172),
SelectedTextColor = Color.White
};
var data = new List<string> ();
data.Add ("New York");
data.Add ("San Francisco");
data.Add ("Washington D.C.");
data.Add ("San Diego");
data.Add ("Orlando");
data.Add ("Charleston");
data.Add ("Boston");
data.Add ("New Orleans");
data.Add ("Las Vegas");
data.Add ("Anchorage");
data.Add ("California");
data.Add ("Detroit");
data.Add ("North.");
data.Add ("South");
data.Add ("Michigan");
data.Add ("Nevada");
data.Add ("Ohio");
data.Add ("Lansing");
data.Add ("Grand Rapids");
data.Add ("Europe");
this._Drop1.Source = data;
this._Drop2.Source = data;
this.Content = new StackLayout {
HorizontalOptions = LayoutOptions.Start,
VerticalOptions = LayoutOptions.Start,
Children = {
_Button1,
new StackLayout
{
Orientation = StackOrientation.Horizontal,
VerticalOptions = LayoutOptions.Start,
Children =
{
this._Drop1,
new Button
{
Text = "Button 1"
},
this._Drop2,
}
},
_Button2,
new Button
{
Text = "Pop Page",
Command = new Command(async () => {
await Navigation.PopAsync();
})
}
}
};
}