diff --git a/doc/examples/animations/lib/main.dart b/doc/examples/animations/lib/main.dart
index e2073ce3a..3369b1eca 100644
--- a/doc/examples/animations/lib/main.dart
+++ b/doc/examples/animations/lib/main.dart
@@ -5,9 +5,11 @@ import 'package:flame/animation.dart' as flame_animation;
 import 'package:flame/components/animation_component.dart';
 import 'package:flutter/material.dart';
 
-void main() {
-  final game = MyGame();
+void main() async {
+  final Size size = await Flame.util.initialDimensions();
+  final game = MyGame(size);
   runApp(game.widget);
+
   Flame.util.addGestureRecognizer(TapGestureRecognizer()
       ..onTapDown = (TapDownDetails evt) {
         game.addAnimation();
@@ -18,9 +20,7 @@ class MyGame extends BaseGame {
   final animation = flame_animation.Animation.sequenced('chopper.png', 4,
       textureWidth: 48, textureHeight: 48, stepTime: 0.15);
 
-  MyGame() {
-    _start();
-  }
+  Size screenSize;
 
   void addAnimation() {
     final animationComponent = AnimationComponent(100, 100, animation, destroyOnFinish: true);
@@ -30,16 +30,14 @@ class MyGame extends BaseGame {
     add(animationComponent);
   }
 
-  void _start() async {
-    final Size size = await Flame.util.initialDimensions();
-
+  MyGame(this.screenSize) {
     final animationComponent = AnimationComponent(100, 100, animation);
-    animationComponent.x = size.width / 2 - 100;
+    animationComponent.x = screenSize.width / 2 - 100;
     animationComponent.y = 100;
 
     final reversedAnimationComponent =
         AnimationComponent(100, 100, animation.reversed());
-    reversedAnimationComponent.x = size.width / 2;
+    reversedAnimationComponent.x = screenSize.width / 2;
     reversedAnimationComponent.y = 100;
 
     add(animationComponent);
diff --git a/doc/examples/aseprite/lib/main.dart b/doc/examples/aseprite/lib/main.dart
index cf2a635e5..10b0b6c53 100644
--- a/doc/examples/aseprite/lib/main.dart
+++ b/doc/examples/aseprite/lib/main.dart
@@ -4,22 +4,25 @@ import 'package:flame/animation.dart' as flame_animation;
 import 'package:flame/components/animation_component.dart';
 import 'package:flutter/material.dart';
 
-void main() => runApp(MyGame().widget);
+void main() async{
+  final Size size = await Flame.util.initialDimensions();
+  runApp(MyGame(size).widget);
+}
 
 class MyGame extends BaseGame {
-  MyGame() {
+  Size screenSize;
+
+  MyGame(this.screenSize) {
     _start();
   }
 
   void _start() async {
-    final Size size = await Flame.util.initialDimensions();
-
     final animation = await flame_animation.Animation.fromAsepriteData(
         'chopper.png', 'chopper.json');
     final animationComponent = AnimationComponent(200, 200, animation);
 
-    animationComponent.x = (size.width / 2) - 100;
-    animationComponent.y = (size.height / 2) - 100;
+    animationComponent.x = (screenSize.width / 2) - 100;
+    animationComponent.y = (screenSize.height / 2) - 100;
 
     add(animationComponent);
   }
diff --git a/doc/examples/sound/lib/main.dart b/doc/examples/sound/lib/main.dart
index 6a1a961e1..0672c2fdc 100644
--- a/doc/examples/sound/lib/main.dart
+++ b/doc/examples/sound/lib/main.dart
@@ -3,7 +3,10 @@ import 'package:flame/game.dart';
 import 'package:flame/components/component.dart';
 import 'package:flutter/material.dart';
 
-void main() => runApp(MyGame().widget);
+void main() async {
+  final Size size = await Flame.util.initialDimensions();
+  runApp(MyGame(size).widget);
+}
 
 class Ball extends PositionComponent {
   final Size gameSize;
@@ -37,19 +40,20 @@ class Ball extends PositionComponent {
 }
 
 class MyGame extends BaseGame {
-  MyGame() {
+  Size screenSize;
+
+  MyGame(this.screenSize) {
     _start();
   }
 
   void _start() async {
-    final Size size = await Flame.util.initialDimensions();
 
     Flame.audio.disableLog();
     Flame.audio.load('boin.mp3');
     Flame.audio.loop('music.mp3', volume: 0.4);
 
-    add(Ball(size)
-      ..y = (size.height / 2) - 50
+    add(Ball(this.screenSize)
+      ..y = (this.screenSize.height / 2) - 50
       ..width = 100
       ..height = 100);
   }
diff --git a/doc/examples/text/lib/main.dart b/doc/examples/text/lib/main.dart
index 93a41cb94..bc3092b33 100644
--- a/doc/examples/text/lib/main.dart
+++ b/doc/examples/text/lib/main.dart
@@ -9,7 +9,10 @@ import 'package:flame/palette.dart';
 import 'package:flame/text_config.dart';
 import 'package:flutter/material.dart';
 
-void main() => runApp(MyGame().widget);
+void main() async {
+  final Size size = await Flame.util.initialDimensions();
+  runApp(MyGame(size).widget);
+}
 
 TextConfig regular = TextConfig(color: BasicPalette.white.color);
 TextConfig tiny = regular.withFontSize(12.0);
@@ -32,31 +35,27 @@ class MyTextBox extends TextBoxComponent {
 }
 
 class MyGame extends BaseGame {
-  MyGame() {
-    _start();
-  }
-
-  void _start() async {
-    final Size size = await Flame.util.initialDimensions();
+  Size screenSize;
 
+  MyGame(this.screenSize) {
     add(TextComponent('Hello, Flame', config: regular)
       ..anchor = Anchor.topCenter
-      ..x = size.width / 2
+      ..x = screenSize.width / 2
       ..y = 32.0);
 
     add(TextComponent('center', config: tiny)
       ..anchor = Anchor.center
-      ..x = size.width / 2
-      ..y = size.height / 2);
+      ..x = screenSize.width / 2
+      ..y = screenSize.height / 2);
 
     add(TextComponent('bottomRight', config: tiny)
       ..anchor = Anchor.bottomRight
-      ..x = size.width
-      ..y = size.height);
+      ..x = screenSize.width
+      ..y = screenSize.height);
 
     add(MyTextBox(
         'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam eget ligula eu lectus lobortis condimentum.')
       ..anchor = Anchor.bottomLeft
-      ..y = size.height);
+      ..y = screenSize.height);
   }
 }