florent37 · December 13, 2018 07:49 · Dec 13, 2018 · Dec 12, 2018 · Dec 12, 2018 · Dec 12, 2018
diff --git a/MyWidget.dart b/MyWidget.dart
@@ -3,6 +3,7 @@
 class MyWidget extends StateFullWidget {
 
   //final == val (kotlin)
+  //underscore _ means private in dart
   final _myText = "";
 
   //default constructor, braces {} means the arguments can be provided in any order

diff --git a/MyWidget.dart b/MyWidget.dart
@@ -12,7 +12,7 @@ class MyWidget extends StateFullWidget {
   @override
   Widget build(BuildContext context) { //BuildContext => represents the parent widget
       var imageUrl = "www.mywebsites.com/${_myText}";
-      return GestureDetector(
+      return GestureDetector( //add user interraction
           onTap: () { //lambdas without parameter, like kotlin
             print("tapped");
           },

diff --git a/MyWidget.dart b/MyWidget.dart
@@ -1,8 +1,8 @@
 //a statefull widget receive it values directly from the constructor,
-//here the method build is called once
+//from doc : A widget that does not require mutable state.
 class MyWidget extends StateFullWidget {
 
-  //final == val
+  //final == val (kotlin)
   final _myText = "";
 
   //default constructor, braces {} means the arguments can be provided in any order

diff --git a/MyWidget.dart b/MyWidget.dart
@@ -18,6 +18,7 @@ class MyWidget extends StateFullWidget {
           },
           child: Row( //Row == Vertical LinearLayout
               children: [ 
+                    //download then display an image
                     Image.network(imageUrl),
                     Text(_myText)
               ]

diff --git a/MyWidget.dart b/MyWidget.dart
@@ -10,7 +10,7 @@ class MyWidget extends StateFullWidget {
   MyWidget({this.key, @required String text}) : _myText = text;
 
   @override
-  Widget build(BuildContext context) { //BuildContext => the current position on the widget trees + its parent's size
+  Widget build(BuildContext context) { //BuildContext => represents the parent widget
       var imageUrl = "www.mywebsites.com/${_myText}";
       return GestureDetector(
           onTap: () { //lambdas without parameter, like kotlin

diff --git a/MyWidget.dart b/MyWidget.dart
@@ -1,18 +1,23 @@
+//a statefull widget receive it values directly from the constructor,
+//here the method build is called once
 class MyWidget extends StateFullWidget {
 
+  //final == val
   final _myText = "";
 
-  MyWidget({this.key, String text}) : _myText = text;
+  //default constructor, braces {} means the arguments can be provided in any order
+  //_myText = text means _myText is initialised with the `text` value automatically
+  MyWidget({this.key, @required String text}) : _myText = text;
 
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context) { //BuildContext => the current position on the widget trees + its parent's size
       var imageUrl = "www.mywebsites.com/${_myText}";
       return GestureDetector(
-          onTap: () {
+          onTap: () { //lambdas without parameter, like kotlin
             print("tapped");
           },
-          child: Row(
-              children: [
+          child: Row( //Row == Vertical LinearLayout
+              children: [ 
                     Image.network(imageUrl),
                     Text(_myText)
               ]

diff --git a/MyWidget.dart b/MyWidget.dart
@@ -0,0 +1,22 @@
+class MyWidget extends StateFullWidget {
+
+  final _myText = "";
+
+  MyWidget({this.key, String text}) : _myText = text;
+
+  @override
+  Widget build(BuildContext context) {
+      var imageUrl = "www.mywebsites.com/${_myText}";
+      return GestureDetector(
+          onTap: () {
+            print("tapped");
+          },
+          child: Row(
+              children: [
+                    Image.network(imageUrl),
+                    Text(_myText)
+              ]
+          )
+      )
+  }
+}
No results found