return Container instead of null for :if

Author: waseemdev

package.json

@@ -3,7 +3,7 @@
 	"displayName": "XML Layout for Flutter",
 	"description": "XML Layout for Flutter. Brings Angular's style to Flutter!",
 	"publisher": "WaseemDev",
-	"version": "0.0.21",
+	"version": "0.0.22",
 	"icon": "images/logo.png",
 	"repository": {
 		"type": "github",

src/property-handlers/builder.test.ts

@@ -80,7 +80,7 @@ suite("Builder Tests", function () {
               );
             },
           ),
-          () => null
+          () => Container(width: 0, height: 0)
         )
 `;
 

src/property-handlers/if.test.ts

@@ -9,7 +9,7 @@ suite("If custom property", function () {
 WidgetHelpers.ifTrue(true,
     () => Text(
     ),
-    () => null
+    () => Container(width: 0, height: 0)
 )`;
 
         const generated = generateWidget(xml);
@@ -30,7 +30,7 @@ WidgetHelpers.ifTrue(true,
               );
             },
           ),
-          () => null
+          () => Container(width: 0, height: 0)
         )
 `;
 
@@ -54,7 +54,7 @@ WidgetHelpers.ifTrue(true,
                 ),
               ),
             ),
-            () => null
+            () => Container(width: 0, height: 0)
           )
 `;
 

src/property-handlers/if.ts

@@ -51,7 +51,7 @@ export class IfHandler extends CustomPropertyHandler {
         const data = widget.tempData;
         const wrappedWidget = widget.wrappedWidgets[0];
         const elseWidget = widget.wrappedWidgets[1];
-        const defaultElseWidget = 'null'; //'Container(width: 0, height: 0)';
+        const defaultElseWidget = 'Container(width: 0, height: 0)'; // this must not be null (e.g. child of Row, StreamBuilder result can't be null)
 
         if (data && wrappedWidget) {
             code = `WidgetHelpers.ifTrue(${data.condition},

src/property-handlers/item-builder.test.ts

@@ -121,7 +121,7 @@ suite("ItemBuilder Tests", function () {
               );
             },
           ),
-          () => null
+          () => Container(width: 0, height: 0)
         )
 `;
 
@@ -149,7 +149,7 @@ suite("ItemBuilder Tests", function () {
               },
             ),
           ),
-          () => null
+          () => Container(width: 0, height: 0)
         )
 `;
 
@@ -177,7 +177,7 @@ suite("ItemBuilder Tests", function () {
               },
             ),
           ),
-          () => null
+          () => Container(width: 0, height: 0)
         )
 `;
 
@@ -231,7 +231,7 @@ suite("ItemBuilder Tests", function () {
               },
             ),
           ),
-          () => null
+          () => Container(width: 0, height: 0)
         )
 `;
 

src/property-handlers/repeat.test.ts

@@ -44,7 +44,7 @@ suite("Repeat Tests", function () {
             () => Text(
   
             ),
-            () => null
+            () => Container(width: 0, height: 0)
           );
         }
       )

src/property-handlers/switch.test.ts

@@ -300,7 +300,7 @@ suite("Switch Tests", function () {
               ]
             ),
           ),
-          () => null
+          () => Container(width: 0, height: 0)
         )
 `;
 

src/resolvers/pipes.test.ts

@@ -337,7 +337,7 @@ suite("Pipes Tests", function () {
                               ),
                             ),
                           ),
-                          () => null
+                          () => Container(width: 0, height: 0)
                         ),
                       ],
                     ),
@@ -413,7 +413,7 @@ suite("Pipes Tests", function () {
                                 ),
                               ),
                             ),
-                            () => null
+                            () => Container(width: 0, height: 0)
                           ),
                         ],
                       ),