Massive overhaul

- The project was restarted using Android Studio.
- Adoptive platform-specific widgets has been removed due to build issues with Android.
- Dual-licensed under the BSD-3-Clause license and UNLICENSE.

lib/control.dart

@@ -1,6 +1,5 @@
 import 'package:bullseye/game_model.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter_platform_widgets/flutter_platform_widgets.dart';
 
 class Control extends StatefulWidget {
   Control({Key? key, @required this.model}) : super(key: key);
@@ -20,12 +19,12 @@ class _ControlState extends State<Control> {
     return Row(
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
-        Padding(
-          padding: const EdgeInsets.all(PADDING),
-          child: PlatformText("1"),
+        const Padding(
+          padding: EdgeInsets.all(PADDING),
+          child: Text("1"),
         ),
         Expanded(
-          child: PlatformSlider(
+          child: Slider(
             value: currentValue!.toDouble(),
             onChanged: (newValue) {
               setState(() {
@@ -36,9 +35,9 @@ class _ControlState extends State<Control> {
             max: 100.0,
           ),
         ),
-        Padding(
-          padding: const EdgeInsets.all(PADDING),
-          child: PlatformText("100"),
+        const Padding(
+          padding: EdgeInsets.all(PADDING),
+          child: Text("100"),
         )
       ],
     );

lib/main.dart

@@ -9,7 +9,6 @@ import 'package:bullseye/prompt.dart';
 import 'package:bullseye/control.dart';
 import 'package:bullseye/score.dart';
 import 'package:bullseye/game_model.dart';
-import 'package:flutter_platform_widgets/flutter_platform_widgets.dart';
 
 const gameTitle = "Bullseye";
 
@@ -19,7 +18,7 @@ void main() {
   if (isDesktop) {
     doWhenWindowReady(() {
       final win = appWindow;
-      final minSize = Size(600, 450);
+      const minSize = Size(600, 450);
 
       win.minSize = minSize;
       win.size = minSize;
@@ -37,7 +36,7 @@ class BullsEyeApp extends StatelessWidget {
   Widget build(BuildContext context) {
     SystemChrome.setPreferredOrientations(
         [DeviceOrientation.landscapeLeft, DeviceOrientation.landscapeRight]);
-    return PlatformApp(
+    return MaterialApp(
         title: gameTitle,
         // debugShowCheckedModeBanner: false,
         home: GamePage());
@@ -77,11 +76,11 @@ class _GamePageState extends State<GamePage> {
       children: [
         Prompt(targetValue: _model.target),
         Control(model: _model),
-        PlatformTextButton(
-            child: PlatformText('Hit me!'),
+        TextButton(
+            child: const Text('Hit me!'),
             onPressed: () {
               _showAlert(context);
-              this._alertIsVisable = true;
+              _alertIsVisable = true;
             })
       ],
     );
@@ -122,20 +121,21 @@ class _GamePageState extends State<GamePage> {
   Widget build(BuildContext context) {
     return Scaffold(
       body: LayoutBuilder(builder: (context, constraints) {
-        if (isDesktop)
+        if (isDesktop) {
           return desktopContainer();
-        else
+        } else {
           return mobileContainer();
+        }
       }),
     );
   }
 
   void _showAlert(BuildContext context) {
-    var okButton = PlatformTextButton(
-        child: PlatformText("Awesome!"),
+    var okButton = TextButton(
+        child: const Text("Awesome!"),
         onPressed: () {
           Navigator.of(context).pop();
-          this._alertIsVisable = false;
+          _alertIsVisable = false;
           setState(() {
             _model.totalScore += _pointsForCurrentRound();
             var rng = Random();
@@ -143,12 +143,12 @@ class _GamePageState extends State<GamePage> {
           });
         });
 
-    showPlatformDialog(
+    showDialog(
         context: context,
         builder: (BuildContext context) {
-          return PlatformAlertDialog(
-            title: PlatformText("Hello There."),
-            content: PlatformText("The slider's value is ${_sliderValue()}\n" +
+          return AlertDialog(
+            title: const Text("Hello There."),
+            content: Text("The slider's value is ${_sliderValue()}\n" +
                 "You scored ${_pointsForCurrentRound()} points this round."),
             actions: <Widget>[okButton],
           );

lib/prompt.dart

@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_platform_widgets/flutter_platform_widgets.dart';
 
 class Prompt extends StatelessWidget {
   Prompt({@required this.targetValue});
@@ -9,8 +8,8 @@ class Prompt extends StatelessWidget {
   Widget build(BuildContext context) {
     return Column(
       children: <Widget>[
-        PlatformText("PUT THE BULLSEYE AS CLOSE YOU CAN TO"),
-        PlatformText("$targetValue")
+        const Text("PUT THE BULLSEYE AS CLOSE YOU CAN TO"),
+        Text("$targetValue")
       ],
     );
   }

lib/score.dart

@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_platform_widgets/flutter_platform_widgets.dart';
 
 class Score extends StatelessWidget {
   Score({Key? key, @required this.totalScore, @required this.round})
@@ -13,16 +12,16 @@ class Score extends StatelessWidget {
     return Row(
       mainAxisAlignment: MainAxisAlignment.center,
       children: [
-        PlatformTextButton(
-          child: PlatformText("Start Over"),
+        TextButton(
+          child: Text("Start Over"),
           onPressed: () {},
         ),
         Padding(
           padding: const EdgeInsets.all(8.0),
           child: Row(
             children: [
-              PlatformText("Score:"),
-              PlatformText("$totalScore"),
+              Text("Score:"),
+              Text("$totalScore"),
             ],
           ),
         ),
@@ -30,13 +29,13 @@ class Score extends StatelessWidget {
           padding: const EdgeInsets.all(8.0),
           child: Row(
             children: [
-              PlatformText("Round:"),
-              PlatformText("$round"),
+              Text("Round:"),
+              Text("$round"),
             ],
           ),
         ),
-        PlatformTextButton(
-          child: PlatformText("Info"),
+        TextButton(
+          child: Text("Info"),
           onPressed: () {},
         )
       ],