diff --git a/jsonexample/.gitignore b/jsonexample/.gitignore
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--- /dev/null
+++ b/jsonexample/.gitignore
@@ -0,0 +1,9 @@
+.DS_Store
+.dart_tool/
+.packages
+.pub/
+.idea
+.atom
+.flutter-plugins
+build/
+*.iml
diff --git a/jsonexample/.metadata b/jsonexample/.metadata
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index 000000000..8cab361b1
--- /dev/null
+++ b/jsonexample/.metadata
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+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+ revision: 44b7e7d3f42f050a79712daab253af06e9daf530
+ channel: beta
diff --git a/jsonexample/README.md b/jsonexample/README.md
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+# jsonexample
+
+A Flutter sample app that deserializes a set of JSON strings using three
+different libraries: `dart:convert`, `json_serializable`, and
+`built_value`.
+
+## Goals for this sample
+
+* Help you decide which of the three most common libraries for
+ deserializing JSON is right for your project.
+* Provide you with example code for deserializing:
+ * Simple and nested objects
+ * Lists of primitive values
+ * Maps containing primitive values
+
+## The important bits
+
+### `json_strings.dart`
+
+The actual JSON to be deserialized.
+
+### `dart_convert`/`json_serializable`/`dart_convert`
+
+These folders contain code used to deserialize the simple and complex
+object models using one of the three libraries. They do the work of
+instantiating models and populating their fields.
+
+### `tab_pages.dart`
+
+Each tab page in the app deserializes one type of data with one library.
+These Widgets show what app code using the above libraries might look like.
+
+## Questions/issues
+
+If you have a general question about JSON serialization in Flutter, the
+best places to go are:
+
+* [The FlutterDev Google Group](https://groups.google.com/forum/#!forum/flutter-dev)
+* [The Flutter Gitter channel](https://gitter.im/flutter/flutter)
+* [StackOverflow](https://stackoverflow.com/questions/tagged/flutter)
+
+If you run into an issue with the sample itself, please file an issue
+in the [main Flutter repo](https://github.com/flutter/flutter/issues).
+
diff --git a/jsonexample/android/.gitignore b/jsonexample/android/.gitignore
new file mode 100644
index 000000000..65b7315af
--- /dev/null
+++ b/jsonexample/android/.gitignore
@@ -0,0 +1,10 @@
+*.iml
+*.class
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+GeneratedPluginRegistrant.java
diff --git a/jsonexample/android/app/build.gradle b/jsonexample/android/app/build.gradle
new file mode 100644
index 000000000..f056606a4
--- /dev/null
+++ b/jsonexample/android/app/build.gradle
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+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+ localPropertiesFile.withReader('UTF-8') { reader ->
+ localProperties.load(reader)
+ }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+ throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+apply plugin: 'com.android.application'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+ compileSdkVersion 27
+
+ lintOptions {
+ disable 'InvalidPackage'
+ }
+
+ defaultConfig {
+ // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+ applicationId "com.google.example.jsonexample"
+ minSdkVersion 16
+ targetSdkVersion 27
+ versionCode 1
+ versionName "1.0"
+ testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+ }
+
+ buildTypes {
+ release {
+ // TODO: Add your own signing config for the release build.
+ // Signing with the debug keys for now, so `flutter run --release` works.
+ signingConfig signingConfigs.debug
+ }
+ }
+}
+
+flutter {
+ source '../..'
+}
+
+dependencies {
+ testImplementation 'junit:junit:4.12'
+ androidTestImplementation 'com.android.support.test:runner:1.0.1'
+ androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+}
diff --git a/jsonexample/android/app/src/main/AndroidManifest.xml b/jsonexample/android/app/src/main/AndroidManifest.xml
new file mode 100644
index 000000000..bb93d4c66
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+++ b/jsonexample/android/app/src/main/AndroidManifest.xml
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+
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diff --git a/jsonexample/android/app/src/main/java/com/google/example/jsonexample/MainActivity.java b/jsonexample/android/app/src/main/java/com/google/example/jsonexample/MainActivity.java
new file mode 100644
index 000000000..7eb034fdc
--- /dev/null
+++ b/jsonexample/android/app/src/main/java/com/google/example/jsonexample/MainActivity.java
@@ -0,0 +1,14 @@
+package com.google.example.jsonexample;
+
+import android.os.Bundle;
+
+import io.flutter.app.FlutterActivity;
+import io.flutter.plugins.GeneratedPluginRegistrant;
+
+public class MainActivity extends FlutterActivity {
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ GeneratedPluginRegistrant.registerWith(this);
+ }
+}
diff --git a/jsonexample/android/app/src/main/res/drawable/launch_background.xml b/jsonexample/android/app/src/main/res/drawable/launch_background.xml
new file mode 100644
index 000000000..304732f88
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+++ b/jsonexample/android/app/src/main/res/drawable/launch_background.xml
@@ -0,0 +1,12 @@
+
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+