Add a sensors plugin. (flutter#121)

packages/sensors/.gitignore

@@ -0,0 +1,9 @@
+.DS_Store
+.atom/
+.idea
+.packages
+.pub/
+build/
+ios/.generated/
+packages
+pubspec.lock

packages/sensors/CHANGELOG.md

@@ -0,0 +1,3 @@
+## [0.1.0] - 2017-06-15
+
+* Initial Open Source release.

packages/sensors/LICENSE

@@ -0,0 +1,27 @@
+// 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/sensors/README.md

@@ -0,0 +1,23 @@
+# sensors
+
+A Flutter plugin to access the accelerometer and gyroscope sensors.
+
+
+## Usage
+
+To use this plugin, add `sensors` as a [dependency in your pubspec.yaml file](https://flutter.io/platform-plugins/).
+
+
+### Example
+
+``` dart
+import 'package:sensors/sensors.dart';
+
+accelerometerEvents.listen((AccelerometerEvent event) {
+ // Do something with the event.
+});
+
+gyroscopeEvents.listen((GyroscopeEvent event) {
+ // Do something with the event.
+});
+```

packages/sensors/android/.gitignore

@@ -0,0 +1,12 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+
+/gradle
+/gradlew
+/gradlew.bat

packages/sensors/android/build.gradle

@@ -0,0 +1,32 @@
+group 'io.flutter.plugins.sensors'
+version '1.0-SNAPSHOT'
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:2.3.0'
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+    }
+}
+
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 25
+    buildToolsVersion '25.0.3'
+
+    defaultConfig {
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+}

packages/sensors/android/gradle.properties

@@ -0,0 +1 @@
+org.gradle.jvmargs=-Xmx1536M

packages/sensors/android/settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'sensors'

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

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="io.flutter.plugins.sensors"
+  android:versionCode="1"
+  android:versionName="0.0.1">
+
+  <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="21" />
+</manifest>

packages/sensors/android/src/main/java/io/flutter/plugins/sensors/SensorsPlugin.java

@@ -0,0 +1,68 @@
+// Copyright 2017 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.
+
+package io.flutter.plugins.sensors;
+
+import android.app.Activity;
+import android.hardware.Sensor;
+import android.hardware.SensorEvent;
+import android.hardware.SensorEventListener;
+import android.hardware.SensorManager;
+import io.flutter.plugin.common.EventChannel;
+import io.flutter.plugin.common.PluginRegistry.Registrar;
+
+/** SensorsPlugin */
+public class SensorsPlugin implements EventChannel.StreamHandler {
+  private static final String ACCELEROMETER_CHANNEL_NAME = "plugins.flutter.io/accelerometer";
+  private static final String GYROSCOPE_CHANNEL_NAME = "plugins.flutter.io/gyroscope";
+
+  /** Plugin registration. */
+  public static void registerWith(Registrar registrar) {
+    final EventChannel accelerometerChannel =
+        new EventChannel(registrar.messenger(), ACCELEROMETER_CHANNEL_NAME);
+    accelerometerChannel.setStreamHandler(
+        new SensorsPlugin(registrar.activity(), Sensor.TYPE_ACCELEROMETER));
+
+    final EventChannel gyroscopeChannel =
+        new EventChannel(registrar.messenger(), GYROSCOPE_CHANNEL_NAME);
+    gyroscopeChannel.setStreamHandler(
+        new SensorsPlugin(registrar.activity(), Sensor.TYPE_GYROSCOPE));
+  }
+
+  private SensorEventListener sensorEventListener;
+  private final SensorManager sensorManager;
+  private final Sensor sensor;
+
+  private SensorsPlugin(Activity activity, int sensorType) {
+    sensorManager = (SensorManager) activity.getSystemService(activity.SENSOR_SERVICE);
+    sensor = sensorManager.getDefaultSensor(sensorType);
+  }
+
+  @Override
+  public void onListen(Object arguments, EventChannel.EventSink events) {
+    sensorEventListener = createSensorEventListener(events);
+    sensorManager.registerListener(sensorEventListener, sensor, sensorManager.SENSOR_DELAY_NORMAL);
+  }
+
+  @Override
+  public void onCancel(Object arguments) {
+    sensorManager.unregisterListener(sensorEventListener);
+  }
+
+  SensorEventListener createSensorEventListener(final EventChannel.EventSink events) {
+    return new SensorEventListener() {
+      @Override
+      public void onAccuracyChanged(Sensor sensor, int accuracy) {}
+
+      @Override
+      public void onSensorChanged(SensorEvent event) {
+        double[] sensorValues = new double[event.values.length];
+        for (int i = 0; i < event.values.length; i++) {
+          sensorValues[i] = event.values[i];
+        }
+        events.success(sensorValues);
+      }
+    };
+  }
+}

packages/sensors/example/.gitignore

@@ -0,0 +1,10 @@
+.DS_Store
+.atom/
+.idea
+.packages
+.pub/
+build/
+ios/.generated/
+packages
+pubspec.lock
+.flutter-plugins

packages/sensors/example/README.md

@@ -0,0 +1,8 @@
+# sensors_example
+
+Demonstrates how to use the sensors plugin.
+
+## Getting Started
+
+For help getting started with Flutter, view our online
+[documentation](http://flutter.io/).

packages/sensors/example/android.iml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$/android">
+      <sourceFolder url="file://$MODULE_DIR$/android/app/src/main/java" isTestSource="false" />
+    </content>
+    <orderEntry type="jdk" jdkName="Android API 25 Platform" jdkType="Android SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Flutter for Android" level="project" />
+  </component>
+</module>

packages/sensors/example/android/.gitignore

@@ -0,0 +1,13 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+GeneratedPluginRegistrant.java
+
+/gradle
+/gradlew
+/gradlew.bat

packages/sensors/example/android/app/build.gradle

@@ -0,0 +1,49 @@
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withInputStream { stream ->
+        localProperties.load(stream)
+    }
+}
+
+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 25
+    buildToolsVersion '25.0.3'
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
+    defaultConfig {
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "io.flutter.plugins.sensors_example"
+    }
+
+    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 {
+    androidTestCompile 'com.android.support:support-annotations:25.0.0'
+    androidTestCompile 'com.android.support.test:runner:0.5'
+    androidTestCompile 'com.android.support.test:rules:0.5'
+}

packages/sensors/example/android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,32 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="io.flutter.plugins.sensors_example"
+    android:versionCode="1"
+    android:versionName="0.0.1">
+
+    <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="21" />
+
+    <!-- The INTERNET permission is required for development. Specifically,
+         flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+
+    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
+         calls FlutterMain.startInitialization(this); in its onCreate method.
+         In most cases you can leave this as-is, but you if you want to provide
+         additional functionality it is fine to subclass or reimplement
+         FlutterApplication and put your custom class here. -->
+    <application android:name="io.flutter.app.FlutterApplication" android:label="sensors_example" android:icon="@mipmap/ic_launcher">
+        <activity android:name=".MainActivity"
+                  android:launchMode="singleTop"
+                  android:theme="@android:style/Theme.Black.NoTitleBar"
+                  android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection"
+                  android:hardwareAccelerated="true"
+                  android:windowSoftInputMode="adjustResize">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>

packages/sensors/example/android/app/src/main/java/io/flutter/plugins/sensor_example/MainActivity.java

@@ -0,0 +1,13 @@
+package io.flutter.plugins.sensors_example;
+
+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);
+  }
+}

packages/sensors/example/android/build.gradle

@@ -0,0 +1,29 @@
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:2.2.3'
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+    }
+}
+
+rootProject.buildDir = '../build'
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+    project.evaluationDependsOn(':app')
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
+
+task wrapper(type: Wrapper) {
+    gradleVersion = '2.14.1'
+}

packages/sensors/example/android/gradle.properties

@@ -0,0 +1 @@
+org.gradle.jvmargs=-Xmx1536M

packages/sensors/example/android/settings.gradle

@@ -0,0 +1,15 @@
+include ':app'
+
+def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+
+def plugins = new Properties()
+def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+if (pluginsFile.exists()) {
+    pluginsFile.withInputStream { stream -> plugins.load(stream) }
+}
+
+plugins.each { name, path ->
+    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+    include ":$name"
+    project(":$name").projectDir = pluginDirectory
+}