fix docs & snippent

Author: waseemdev

docs/parameters.md

@@ -26,7 +26,7 @@ Parameters are used to pass data from one widget to another, and since you can't
 
 And you can access it directly in the XML file:
 ```XML
-  <Text text="category.name" />
+  <Text text="ctrl.category.name" />
 ```
 
 Or in the controller class **after** `didLoad()`, not in the constructor:
@@ -36,3 +36,9 @@ Or in the controller class **after** `didLoad()`, not in the constructor:
     print(category.name);
   }
 ```
+
+Then, from another widget, pass parameter's value as usual:
+```xml
+<MyWidget category="...value...">
+</MyWidget>
+```

src/generators/class-generator.ts

@@ -235,20 +235,20 @@ class _${widgetName}State extends State<${widgetName}>${mixinsCode} {
 
   @override
   void initState() {
-    super.initState();${(stateVarsInit.length > 0 ? '\n' : '') + stateVarsInit.join(`\n    `)}
+    super.initState();${(stateVarsInit.length > 0 ? '\n    ' : '') + stateVarsInit.join(`\n    `)}
   }
 
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();${routeAware ? `\n    _routeObserver = Provider.of<RouteObserver<Route>>(context)..subscribe(this, ModalRoute.of(context));` : ''
-  }${rootWidget.providers.map(a => `${hasController ? `ctrl._${a.name} = `: ''}${a.name} = Provider.of<${a.type}>(context);`).join('\n  ')
-  }${hasController ? `ctrl._load(context);` : ''}
+  }${(rootWidget.providers.length ? '\n    ' : '') + rootWidget.providers.map(a => `${hasController ? `ctrl._${a.name} = `: ''}${a.name} = Provider.of<${a.type}>(context);`).join('\n    ')
+  }${hasController ? `\n    ctrl._load(context);` : ''}
   }
 
   @override
   void dispose() {${hasController ? `\nctrl.dispose();` : ''
     }${routeAware ? `\n    _routeObserver.unsubscribe(this);` : ''
-    }${controllers.filter(a => a.isPrivate).map(a => `${a.name}.dispose();`).join('\n    ')}
+    }${(controllers.length > 0 ? '\n    ' : '') + controllers.filter(a => a.isPrivate).map(a => `${a.name}.dispose();`).join('\n    ')}
     super.dispose();
   }
   ${buildMethodContent}

src/property-handlers/child-builder.ts

@@ -6,7 +6,7 @@ import { PropertyResolver } from "../resolvers/property-resolver";
 
 export class ChildBuilderHandler extends CustomPropertyHandler {
     priority = -100000; // lowest priority
-    valueSnippet = 'item of ${0:items}';
+    valueSnippet = '"item of ${0:items}"';
 
     constructor(private readonly propertyResolver: PropertyResolver) {
         super();