private static void BuildChildren(StackLayout view, SerializableStackLayout root)
{
foreach (SerializableViewElement child in root.Children)
{
view.Children.Add(BuildView(child));
}
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
JObject jo = JObject.Load(reader);
string type = (string)jo["Type"];
SerializableViewElement item;
switch (type)
{
case "StackLayout":
item = new SerializableStackLayout();
break;
case "Label":
item = new SerializableLabel();
break;
default:
item = new SerializableViewElement();
break;
}
serializer.Populate(jo.CreateReader(), item);
return(item);
}
private static StackLayout BuildStackLayout(SerializableStackLayout root)
{
StackLayout ToReturn = new StackLayout();
ToReturn.Orientation = GetStackOrientation(root.Orientation);
ToReturn.HorizontalOptions = GetLayoutOptions(root.HorizontalOptions);
ToReturn.VerticalOptions = GetLayoutOptions(root.VerticalOptions);
BuildChildren(ToReturn, root);
return(ToReturn);
}
void BuildDynamicContent(string viewString)
{
viewString = @"{
'Type': 'StackLayout',
'Orientation': 'Vertical',
'Children':[
{
'Type': 'StackLayout',
'Orientation': 'Horizontal',
'HorizontalOptions': 'CenterAndExpand',
'VerticalOptions': 'CenterAndExpand',
'Children':[
{
'Type': 'Label',
'Text': 'Hello world!',
'HorizontalOptions': 'CenterAndExpand'
},
{
'Type': 'Label',
'Text': 'Another label!',
'TextColor': 'Blue',
'HorizontalOptions': 'CenterAndExpand'
}
]
},
{
'Type': 'Label',
'HorizontalOptions': 'CenterAndExpand',
'VerticalOptions': 'CenterAndExpand',
'Text': 'This label is not a child'
}
]
}";
SerializableStackLayout deserializedView = JsonConvert.DeserializeObject <SerializableStackLayout>(viewString, new SerializableViewElementConverter());
StackLayout content = (StackLayout)ViewBuilder.BuildView(deserializedView);
Button scanButton = new Button()
{
HorizontalOptions = LayoutOptions.CenterAndExpand, Text = "Start Scanning"
};
scanButton.Clicked += Scan_Clicked;
content.Children.Add(scanButton);
ScrollView scroll = new ScrollView();
scroll.Content = content;
Device.BeginInvokeOnMainThread(() =>
{
Content = scroll;
});
}
