spinanico / jsonable Goto Github PK

I don't know how to use JMap type,
Please give me example

{id:100, items: { 'pc': {price: 500, title: 'a01'},'nb': {price: 100, title: 'b01'} }}

════════ Exception caught by gesture ═══════════════════════════════════════════════════════════════
The following JsonUnsupportedObjectError was thrown while handling a gesture:
Converting object to an encodable object failed: _LinkedHashMap len:1

`
var p = Person(id:100,contact: {'pc':Contact(price:500,title:'a01') , 'nb':Contact(price:100,title:'b01')} );
print(p.toJson());

class Person with Jsonable {
JNum id;
JMap<String, Contact> contact;
Person({id,contact}) {
this.id = this.jNum("id", initialValue:id);
this.contact = this.jMap<String, Contact>("contact", builder: () => Contact()
, initialValue:contact);
}
}

class Contact with Jsonable {
JNum price;
JString title;
Contact({price,title}) {
this.price = this.jNum("price", initialValue: price);
this.titl = this.jString("title", initialValue: title);
}
}
`

class json with Jsonable { JList row; }
json.removeAt(0);
{"row":[{"type":"panel"},{"type":"detail"}]}
Unhandled Exception: Stack Overflow
E/flutter (11741): #0 CJlist.removeAt (package:jsonable/src/typing/CJlist.dart:201:3)