Adding a camera plugin (flutter#337)

* initial import

Author: sigurdm

packages/camera/.gitignore

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+.idea/
+.vagrant/
+.sconsign.dblite
+.svn/
+
+.DS_Store
+*.swp
+profile
+
+DerivedData/
+build/
+
+*.pbxuser
+*.mode1v3
+*.mode2v3
+*.perspectivev3
+
+!default.pbxuser
+!default.mode1v3
+!default.mode2v3
+!default.perspectivev3
+
+xcuserdata
+
+*.moved-aside
+
+*.pyc
+*sync/
+Icon?
+.tags*
+

packages/camera/CHANGELOG.md

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+## 0.0.1
+
+* Initial release

packages/camera/LICENSE

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+// Copyright 2017 The Chromium Authors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

packages/camera/README.md

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+# Camera Plugin
+
+[![pub package](https://img.shields.io/pub/v/camera.svg)](https://pub.dartlang.org/packages/camera)
+
+A Flutter plugin for iOS and Android allowing access to the device cameras.
+
+## Features:
+
+* Display live camera preview in a widget.
+* Snapshots can be captured and saved to a file.
+
+## Installation
+
+First, add `camera` as a [dependency in your pubspec.yaml file](https://flutter.io/using-packages/).
+
+### iOS
+
+Add a row to the `ios/Runner/Info.plist` of your app with the key `Privacy - Camera Usage Description` and a usage description.
+
+Or in text format add the key:
+
+```xml
+<key>NSCameraUsageDescription</key>
+<string>Can I use the camera please?</string>
+```
+
+### Android
+
+Change the minimum Android sdk version to 21 (or higher) in your `android/app/build.gradle` file.
+
+```
+minSdkVersion 21
+```
+
+### Example
+
+Here is a small example flutter app displaying a full screen camera preview.
+
+```dart
+import 'dart:async';
+import 'package:flutter/material.dart';
+import 'package:camera/camera.dart';
+
+List<CameraDescription> cameras;
+
+Future<Null> main() async {
+  cameras = await availableCameras();
+  runApp(new CameraApp());
+}
+
+class CameraApp extends StatefulWidget {
+  @override
+  _CameraAppState createState() => new _CameraAppState();
+}
+
+class _CameraAppState extends State<CameraApp> {
+  CameraController controller;
+
+  @override
+  void initState() {
+    super.initState();
+    controller = new CameraController(cameras[0], ResolutionPreset.medium);
+    controller.initialize().then((_) {
+      if (!mounted) {
+        return;
+      }
+      setState(() {});
+    });
+  }
+
+  @override
+  void dispose() {
+    controller?.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    if (!controller.value.initialized) {
+      return new Container();
+    }
+    return new AspectRatio(
+        aspectRatio:
+        controller.value.aspectRatio,
+        child: new CameraPreview(controller));
+  }
+}
+```
+
+For a more elaborate usage example see [here](https://github.com/flutter/plugins/tree/master/packages/camera/example).
+
+*Note*: This plugin is still under development, and some APIs might not be available yet.
+[Feedback welcome](https://github.com/flutter/flutter/issues) and
+[Pull Requests](https://github.com/flutter/plugins/pulls) are most welcome!

packages/camera/android/.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures

packages/camera/android/build.gradle

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+group 'io.flutter.camera'
+version '1.0-SNAPSHOT'
+
+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.0.1'
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 26
+    buildToolsVersion '26.0.3'
+
+    defaultConfig {
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        minSdkVersion 21
+    }
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+    dependencies {
+        implementation 'com.android.support:support-annotations:26.0.0'
+    }
+}

packages/camera/android/gradle.properties

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+org.gradle.jvmargs=-Xmx1536M

packages/camera/android/settings.gradle

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+rootProject.name = 'camera'

packages/camera/android/src/main/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="io.flutter.camera">
+    <uses-permission android:name="android.permission.CAMERA"/>
+</manifest>