Adding shrine.

.travis.yml

@@ -0,0 +1,27 @@
+os:
+  - linux
+sudo: false
+addons:
+  apt:
+    sources:
+      - ubuntu-toolchain-r-test
+    packages:
+      - libstdc++6
+      - fonts-droid
+git:
+  depth: 3
+env:
+  - FLUTTER_VERSION=beta
+  - FLUTTER_VERSION=dev
+matrix:
+  allow_failures:
+    - env: FLUTTER_VERSION=dev
+before_script:
+  - git clone https://github.com/flutter/flutter.git -b $FLUTTER_VERSION
+  - ./flutter/bin/flutter doctor
+  - chmod +x travis_script.sh
+script:
+  - ./travis_script.sh
+cache:
+  directories:
+    - $HOME/shared/.pub-cache

CONTRIBUTING.md

@@ -1,7 +1,30 @@
-Want to contribute? Great! First, read this page (including the small print at
-the end).
+# Contributing
 
-### Before you contribute
+Want to contribute to the Flutter sample ecosystem? Great! First, read this
+page (including the small print at the end).
+
+## Is this the right place for your contribution?
+
+This repo is used by members of the Flutter team and a few partners as a place
+to store example apps and demos. It's not meant to be the one and only source of
+truth for Flutter samples or the only place people go to learn about the best
+ways to build with Flutter. What that means in practice is that if you've
+written a great example app, it doesn't need to be maintained here in order to
+get noticed, be of help to new Flutter devs, and have an impact on the
+community.
+
+You can maintain your sample app in your own repo (or with another source
+control provider) and still be as important a part of the Flutter-verse as
+anything you see here. You can let us know on the
+[FlutterDev Google Group](https://groups.google.com/forum/#!forum/flutter-dev)
+when you've published something and Tweet about it with the
+[#flutterio](https://twitter.com/search?q=%23flutterio) hashtag.
+
+## So what should be contributed here, then?
+
+Fixes and necessary improvements to the existing samples, mostly.
+
+## Before you contribute
 
 Before we can use your code, you must sign the
 [Google Individual Contributor License Agreement](https://cla.developers.google.com/about/google-individual)
@@ -18,19 +41,19 @@ us first through the issue tracker with your idea so that we can help out and
 possibly guide you. Coordinating up front makes it much easier to avoid
 frustration later on.
 
-### Code reviews
+## Code reviews
 
 All submissions, including submissions by project members, require review.
 
-### File headers
+## File headers
 
 All files in the project must start with the following header.
 
-    // Copyright 2016 The Chromium Authors. All rights reserved.
+    // Copyright 2018 The Chromium Authors. All rights reserved.
     // Use of this source code is governed by a BSD-style license that can be
     // found in the LICENSE file.
 
-### The small print
+## The small print
 
 Contributions made by corporations are covered by a different agreement than the
 one above, the

README.md

@@ -1,5 +1,7 @@
 # Flutter samples
 
+[![Build Status](https://travis-ci.org/flutter/samples.svg?branch=master)](https://travis-ci.org/flutter/samples)
+
 A collection of open source samples that illustrate best practices for
 [Flutter](https://flutter.io).
 

jsonexample/lib/built_value/built_complex_object.dart

@@ -23,14 +23,19 @@ abstract class BuiltComplexObject
   @nullable
   double get aDouble;
 
+  @nullable
   BuiltSimpleObject get anObject;
 
+  @nullable
   BuiltList<String> get aListOfStrings;
 
+  @nullable
   BuiltList<int> get aListOfInts;
 
+  @nullable
   BuiltList<double> get aListOfDoubles;
 
+  @nullable
   BuiltList<BuiltSimpleObject> get aListOfObjects;
 
   BuiltComplexObject._();

jsonexample/lib/built_value/built_complex_object.g.dart

@@ -7,7 +7,7 @@
 part of 'built_complex_object.dart';
 
 // **************************************************************************
-// Generator: BuiltValueGenerator
+// BuiltValueGenerator
 // **************************************************************************
 
 // ignore_for_file: always_put_control_body_on_new_line
@@ -31,27 +31,7 @@ class _$BuiltComplexObjectSerializer
   @override
   Iterable serialize(Serializers serializers, BuiltComplexObject object,
       {FullType specifiedType: FullType.unspecified}) {
-    final result = <Object>[
-      'anObject',
-      serializers.serialize(object.anObject,
-          specifiedType: const FullType(BuiltSimpleObject)),
-      'aListOfStrings',
-      serializers.serialize(object.aListOfStrings,
-          specifiedType:
-              const FullType(BuiltList, const [const FullType(String)])),
-      'aListOfInts',
-      serializers.serialize(object.aListOfInts,
-          specifiedType:
-              const FullType(BuiltList, const [const FullType(int)])),
-      'aListOfDoubles',
-      serializers.serialize(object.aListOfDoubles,
-          specifiedType:
-              const FullType(BuiltList, const [const FullType(double)])),
-      'aListOfObjects',
-      serializers.serialize(object.aListOfObjects,
-          specifiedType: const FullType(
-              BuiltList, const [const FullType(BuiltSimpleObject)])),
-    ];
+    final result = <Object>[];
     if (object.aString != null) {
       result
         ..add('aString')
@@ -70,6 +50,40 @@ class _$BuiltComplexObjectSerializer
         ..add(serializers.serialize(object.aDouble,
             specifiedType: const FullType(double)));
     }
+    if (object.anObject != null) {
+      result
+        ..add('anObject')
+        ..add(serializers.serialize(object.anObject,
+            specifiedType: const FullType(BuiltSimpleObject)));
+    }
+    if (object.aListOfStrings != null) {
+      result
+        ..add('aListOfStrings')
+        ..add(serializers.serialize(object.aListOfStrings,
+            specifiedType:
+                const FullType(BuiltList, const [const FullType(String)])));
+    }
+    if (object.aListOfInts != null) {
+      result
+        ..add('aListOfInts')
+        ..add(serializers.serialize(object.aListOfInts,
+            specifiedType:
+                const FullType(BuiltList, const [const FullType(int)])));
+    }
+    if (object.aListOfDoubles != null) {
+      result
+        ..add('aListOfDoubles')
+        ..add(serializers.serialize(object.aListOfDoubles,
+            specifiedType:
+                const FullType(BuiltList, const [const FullType(double)])));
+    }
+    if (object.aListOfObjects != null) {
+      result
+        ..add('aListOfObjects')
+        ..add(serializers.serialize(object.aListOfObjects,
+            specifiedType: const FullType(
+                BuiltList, const [const FullType(BuiltSimpleObject)])));
+    }
 
     return result;
   }
@@ -163,21 +177,7 @@ class _$BuiltComplexObject extends BuiltComplexObject {
       this.aListOfInts,
       this.aListOfDoubles,
       this.aListOfObjects})
-      : super._() {
-    if (anObject == null)
-      throw new BuiltValueNullFieldError('BuiltComplexObject', 'anObject');
-    if (aListOfStrings == null)
-      throw new BuiltValueNullFieldError(
-          'BuiltComplexObject', 'aListOfStrings');
-    if (aListOfInts == null)
-      throw new BuiltValueNullFieldError('BuiltComplexObject', 'aListOfInts');
-    if (aListOfDoubles == null)
-      throw new BuiltValueNullFieldError(
-          'BuiltComplexObject', 'aListOfDoubles');
-    if (aListOfObjects == null)
-      throw new BuiltValueNullFieldError(
-          'BuiltComplexObject', 'aListOfObjects');
-  }
+      : super._();
 
   @override
   BuiltComplexObject rebuild(void updates(BuiltComplexObjectBuilder b)) =>
@@ -315,24 +315,24 @@ class BuiltComplexObjectBuilder
               aString: aString,
               anInt: anInt,
               aDouble: aDouble,
-              anObject: anObject.build(),
-              aListOfStrings: aListOfStrings.build(),
-              aListOfInts: aListOfInts.build(),
-              aListOfDoubles: aListOfDoubles.build(),
-              aListOfObjects: aListOfObjects.build());
+              anObject: _anObject?.build(),
+              aListOfStrings: _aListOfStrings?.build(),
+              aListOfInts: _aListOfInts?.build(),
+              aListOfDoubles: _aListOfDoubles?.build(),
+              aListOfObjects: _aListOfObjects?.build());
     } catch (_) {
       String _$failedField;
       try {
         _$failedField = 'anObject';
-        anObject.build();
+        _anObject?.build();
         _$failedField = 'aListOfStrings';
-        aListOfStrings.build();
+        _aListOfStrings?.build();
         _$failedField = 'aListOfInts';
-        aListOfInts.build();
+        _aListOfInts?.build();
         _$failedField = 'aListOfDoubles';
-        aListOfDoubles.build();
+        _aListOfDoubles?.build();
         _$failedField = 'aListOfObjects';
-        aListOfObjects.build();
+        _aListOfObjects?.build();
       } catch (e) {
         throw new BuiltValueNestedFieldError(
             'BuiltComplexObject', _$failedField, e.toString());

jsonexample/lib/built_value/built_simple_object.dart

@@ -22,10 +22,13 @@ abstract class BuiltSimpleObject
   @nullable
   double get aDouble;
 
+  @nullable
   BuiltList<String> get aListOfStrings;
 
+  @nullable
   BuiltList<int> get aListOfInts;
 
+  @nullable
   BuiltList<double> get aListOfDoubles;
 
   BuiltSimpleObject._();

jsonexample/lib/built_value/built_simple_object.g.dart

@@ -7,7 +7,7 @@
 part of 'built_simple_object.dart';
 
 // **************************************************************************
-// Generator: BuiltValueGenerator
+// BuiltValueGenerator
 // **************************************************************************
 
 // ignore_for_file: always_put_control_body_on_new_line
@@ -31,20 +31,7 @@ class _$BuiltSimpleObjectSerializer
   @override
   Iterable serialize(Serializers serializers, BuiltSimpleObject object,
       {FullType specifiedType: FullType.unspecified}) {
-    final result = <Object>[
-      'aListOfStrings',
-      serializers.serialize(object.aListOfStrings,
-          specifiedType:
-              const FullType(BuiltList, const [const FullType(String)])),
-      'aListOfInts',
-      serializers.serialize(object.aListOfInts,
-          specifiedType:
-              const FullType(BuiltList, const [const FullType(int)])),
-      'aListOfDoubles',
-      serializers.serialize(object.aListOfDoubles,
-          specifiedType:
-              const FullType(BuiltList, const [const FullType(double)])),
-    ];
+    final result = <Object>[];
     if (object.aString != null) {
       result
         ..add('aString')
@@ -63,6 +50,27 @@ class _$BuiltSimpleObjectSerializer
         ..add(serializers.serialize(object.aDouble,
             specifiedType: const FullType(double)));
     }
+    if (object.aListOfStrings != null) {
+      result
+        ..add('aListOfStrings')
+        ..add(serializers.serialize(object.aListOfStrings,
+            specifiedType:
+                const FullType(BuiltList, const [const FullType(String)])));
+    }
+    if (object.aListOfInts != null) {
+      result
+        ..add('aListOfInts')
+        ..add(serializers.serialize(object.aListOfInts,
+            specifiedType:
+                const FullType(BuiltList, const [const FullType(int)])));
+    }
+    if (object.aListOfDoubles != null) {
+      result
+        ..add('aListOfDoubles')
+        ..add(serializers.serialize(object.aListOfDoubles,
+            specifiedType:
+                const FullType(BuiltList, const [const FullType(double)])));
+    }
 
     return result;
   }
@@ -139,14 +147,7 @@ class _$BuiltSimpleObject extends BuiltSimpleObject {
       this.aListOfStrings,
       this.aListOfInts,
       this.aListOfDoubles})
-      : super._() {
-    if (aListOfStrings == null)
-      throw new BuiltValueNullFieldError('BuiltSimpleObject', 'aListOfStrings');
-    if (aListOfInts == null)
-      throw new BuiltValueNullFieldError('BuiltSimpleObject', 'aListOfInts');
-    if (aListOfDoubles == null)
-      throw new BuiltValueNullFieldError('BuiltSimpleObject', 'aListOfDoubles');
-  }
+      : super._();
 
   @override
   BuiltSimpleObject rebuild(void updates(BuiltSimpleObjectBuilder b)) =>
@@ -262,18 +263,18 @@ class BuiltSimpleObjectBuilder
               aString: aString,
               anInt: anInt,
               aDouble: aDouble,
-              aListOfStrings: aListOfStrings.build(),
-              aListOfInts: aListOfInts.build(),
-              aListOfDoubles: aListOfDoubles.build());
+              aListOfStrings: _aListOfStrings?.build(),
+              aListOfInts: _aListOfInts?.build(),
+              aListOfDoubles: _aListOfDoubles?.build());
     } catch (_) {
       String _$failedField;
       try {
         _$failedField = 'aListOfStrings';
-        aListOfStrings.build();
+        _aListOfStrings?.build();
         _$failedField = 'aListOfInts';
-        aListOfInts.build();
+        _aListOfInts?.build();
         _$failedField = 'aListOfDoubles';
-        aListOfDoubles.build();
+        _aListOfDoubles?.build();
       } catch (e) {
         throw new BuiltValueNestedFieldError(
             'BuiltSimpleObject', _$failedField, e.toString());

jsonexample/lib/built_value/built_value_serializers.g.dart

@@ -7,7 +7,7 @@
 part of serializers;
 
 // **************************************************************************
-// Generator: BuiltValueGenerator
+// BuiltValueGenerator
 // **************************************************************************
 
 // ignore_for_file: always_put_control_body_on_new_line

jsonexample/lib/json_serializable/serializable_complex_object.g.dart

@@ -7,7 +7,7 @@
 part of 'serializable_complex_object.dart';
 
 // **************************************************************************
-// Generator: JsonSerializableGenerator
+// JsonSerializableGenerator
 // **************************************************************************
 
 SerializableComplexObject _$SerializableComplexObjectFromJson(

jsonexample/lib/json_serializable/serializable_simple_object.g.dart

@@ -7,7 +7,7 @@
 part of 'serializable_simple_object.dart';
 
 // **************************************************************************
-// Generator: JsonSerializableGenerator
+// JsonSerializableGenerator
 // **************************************************************************
 
 SerializableSimpleObject _$SerializableSimpleObjectFromJson(