[bluetooth] heart rate monitor sample for iOS & Android

conceptdev · Oct 24, 2014 · 91ea735 · 91ea735
1 parent 0c8935c
commit 91ea735
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Showing 54 changed files with 1,450 additions and 1 deletion.
diff --git a/BluetoothHeartRateMonitor/HeartRateMonitor.Core/App.cs b/BluetoothHeartRateMonitor/HeartRateMonitor.Core/App.cs
@@ -0,0 +1,21 @@
+using System;
+using Xamarin.Forms;
+using Robotics.Mobile.Core.Bluetooth.LE;
+
+namespace HeartRateMonitor
+{
+	public class App
+	{
+		static IAdapter Adapter;
+
+		public static Page GetMainPage ()
+		{	
+			return new NavigationPage (new DeviceList (Adapter));
+		}
+
+		public static void SetAdapter (IAdapter adapter) {
+			Adapter = adapter;
+		}
+	}
+}
+
diff --git a/BluetoothHeartRateMonitor/HeartRateMonitor.Core/Extensions/EmptyStringConverter.cs b/BluetoothHeartRateMonitor/HeartRateMonitor.Core/Extensions/EmptyStringConverter.cs
@@ -0,0 +1,29 @@
+using System;
+using System.Globalization;
+using Xamarin.Forms;
+
+namespace HeartRateMonitor
+{
+	public class EmptyStringConverter : IValueConverter
+	{
+		public object Convert (
+			object value,
+			Type targetType,
+			object parameter,
+			CultureInfo culture)
+		{
+			String str = (String)value;
+			return String.IsNullOrWhiteSpace (str) ? "<un-named device>" : str;
+		}
+
+		public object ConvertBack (
+			object value,
+			Type targetType,
+			object parameter,
+			CultureInfo culture)
+		{
+			throw new NotImplementedException ("EmptyStringConverter is one-way");
+		}
+	}
+}
+
diff --git a/BluetoothHeartRateMonitor/HeartRateMonitor.Core/Extensions/GuidConverter.cs b/BluetoothHeartRateMonitor/HeartRateMonitor.Core/Extensions/GuidConverter.cs
@@ -0,0 +1,29 @@
+using System;
+using Xamarin.Forms;
+using System.Globalization;
+
+namespace HeartRateMonitor
+{
+	public class GuidConverter : IValueConverter
+	{
+		public object Convert (
+			object value,
+			Type targetType,
+			object parameter,
+			CultureInfo culture)
+		{
+			Guid guid = (Guid)value;
+			return guid.ToString ();
+		}
+
+		public object ConvertBack (
+			object value,
+			Type targetType,
+			object parameter,
+			CultureInfo culture)
+		{
+			throw new NotImplementedException ("GuidConverter is one-way");
+		}
+	}
+}
+
diff --git a/BluetoothHeartRateMonitor/HeartRateMonitor.Core/HeartRateMonitor.csproj b/BluetoothHeartRateMonitor/HeartRateMonitor.Core/HeartRateMonitor.csproj
@@ -0,0 +1,90 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <ProjectGuid>{A1E14BEA-A9D9-46C5-83AA-8891A13E4837}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <RootNamespace>HeartRateMonitor</RootNamespace>
+    <AssemblyName>HeartRateMonitor</AssemblyName>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkProfile>Profile78</TargetFrameworkProfile>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug</OutputPath>
+    <DefineConstants>DEBUG;</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ConsolePause>false</ConsolePause>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>full</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release</OutputPath>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ConsolePause>false</ConsolePause>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="App.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Pages\DeviceList.xaml.cs">
+      <DependentUpon>DeviceList.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Pages\ServiceList.xaml.cs">
+      <DependentUpon>ServiceList.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Pages\CharacteristicList.xaml.cs">
+      <DependentUpon>CharacteristicList.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Pages\CharacteristicDetail.xaml.cs">
+      <DependentUpon>CharacteristicDetail.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Extensions\GuidConverter.cs" />
+    <Compile Include="Extensions\EmptyStringConverter.cs" />
+    <Compile Include="Pages\CharacteristicDetail_Hrm.xaml.cs">
+      <DependentUpon>CharacteristicDetail_Hrm.xaml</DependentUpon>
+    </Compile>
+  </ItemGroup>
+  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\Portable\$(TargetFrameworkVersion)\Microsoft.Portable.CSharp.targets" />
+  <Import Project="..\packages\Xamarin.Forms.1.2.3.6257\build\portable-win+net45+wp80+MonoAndroid10+MonoTouch10\Xamarin.Forms.targets" Condition="Exists('..\packages\Xamarin.Forms.1.2.3.6257\build\portable-win+net45+wp80+MonoAndroid10+MonoTouch10\Xamarin.Forms.targets')" />
+  <ItemGroup>
+    <Folder Include="Pages\" />
+    <Folder Include="Extensions\" />
+  </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="Pages\DeviceList.xaml">
+      <Generator>MSBuild:Compile</Generator>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Pages\ServiceList.xaml">
+      <Generator>MSBuild:Compile</Generator>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Pages\CharacteristicList.xaml">
+      <Generator>MSBuild:Compile</Generator>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Pages\CharacteristicDetail.xaml">
+      <Generator>MSBuild:Compile</Generator>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Pages\CharacteristicDetail_Hrm.xaml">
+      <Generator>MSBuild:Compile</Generator>
+    </EmbeddedResource>
+  </ItemGroup>
+  <ItemGroup>
+    <Reference Include="Xamarin.Forms.Core">
+      <HintPath>..\packages\Xamarin.Forms.1.2.3.6257\lib\portable-win+net45+wp80+MonoAndroid10+MonoTouch10\Xamarin.Forms.Core.dll</HintPath>
+    </Reference>
+    <Reference Include="Xamarin.Forms.Xaml">
+      <HintPath>..\packages\Xamarin.Forms.1.2.3.6257\lib\portable-win+net45+wp80+MonoAndroid10+MonoTouch10\Xamarin.Forms.Xaml.dll</HintPath>
+    </Reference>
+    <Reference Include="Robotics.Mobile.Core">
+      <HintPath>..\Components\Monkey.Robotics-0.5\lib\ios\Robotics.Mobile.Core.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+</Project>
diff --git a/BluetoothHeartRateMonitor/HeartRateMonitor.Core/Pages/CharacteristicDetail.xaml b/BluetoothHeartRateMonitor/HeartRateMonitor.Core/Pages/CharacteristicDetail.xaml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" 
+			 xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" 
+			 x:Class="HeartRateMonitor.CharacteristicDetail"
+			 Title="Characteristic">
+
+	<StackLayout>
+		<StackLayout.Padding>10,10,10,10</StackLayout.Padding>
+		<Label Text="Generic display of information from Bluetooth characteristic." />
+		<BoxView HeightRequest="3" WidthRequest="600" Color="Red" HorizontalOptions="CenterAndExpand" />
+
+		<Label Text="Name" TextColor="Gray" />
+		<Label x:Name="Name" Text="-" />
+
+		<Label Text="ID" TextColor="Gray" />
+		<Label x:Name="ID" Text="-" />
+
+		<Label Text="Raw Value" TextColor="Gray" />
+		<Label x:Name="RawValue" Text="-" />
+
+		<Label Text="String Value" TextColor="Gray" />
+		<Label x:Name="StringValue" Text="-" />
+	</StackLayout>
+</ContentPage>
diff --git a/BluetoothHeartRateMonitor/HeartRateMonitor.Core/Pages/CharacteristicDetail.xaml.cs b/BluetoothHeartRateMonitor/HeartRateMonitor.Core/Pages/CharacteristicDetail.xaml.cs
@@ -0,0 +1,85 @@
+using System;
+using System.Collections.Generic;
+using Xamarin.Forms;
+using Robotics.Mobile.Core.Bluetooth.LE;
+using System.Diagnostics;
+using System.Linq;
+
+namespace HeartRateMonitor
+{	
+	public partial class CharacteristicDetail : ContentPage
+	{	
+		IAdapter adapter;
+		IDevice device;
+		IService service; 
+		ICharacteristic characteristic;
+
+		public CharacteristicDetail (IAdapter adapter, IDevice device, IService service, ICharacteristic characteristic)
+		{
+			InitializeComponent ();
+			this.characteristic = characteristic;
+
+			if (characteristic.CanUpdate) {
+				characteristic.ValueUpdated += (s, e) => {
+					Debug.WriteLine("characteristic.ValueUpdated");
+					Device.BeginInvokeOnMainThread( () => {
+						IsBusy = false; // only spin until the first result is received
+						UpdateDisplay(characteristic);
+					});
+
+				};
+				IsBusy = true;
+				characteristic.StartUpdates();
+			}
+		}
+
+		protected override async void OnAppearing ()
+		{
+			base.OnAppearing ();
+
+			if (characteristic.CanRead) {
+				var c = await characteristic.ReadAsync();
+				UpdateDisplay(c);
+			}
+		}
+
+		protected override void OnDisappearing() 
+		{
+			base.OnDisappearing();
+			if (characteristic.CanUpdate) {
+				characteristic.StopUpdates();
+			}
+		}
+		void UpdateDisplay (ICharacteristic c) {
+			Name.Text = c.Name;
+			//ID.Text = c.ID.ToString();
+			ID.Text = c.ID.PartialFromUuid ();
+
+			var s = (from i in c.Value
+					select i.ToString ("X").PadRight(2, '0')).ToArray ();
+			RawValue.Text = string.Join (":", s);
+
+			if (c.ID == 0x2A37.UuidFromPartial ()) {
+				// heart rate
+				StringValue.Text = DecodeHeartRateCharacteristicValue (c.Value);
+				StringValue.TextColor = Color.Red;
+			} else {
+				StringValue.Text = c.StringValue;
+				StringValue.TextColor = Color.Default;
+			}
+
+		}
+
+		string DecodeHeartRateCharacteristicValue(byte[] data) {
+			ushort bpm = 0;
+			if ((data [0] & 0x01) == 0) {
+				bpm = data [1];
+			} else {
+				bpm = (ushort)data [1];
+				bpm = (ushort)(((bpm >> 8) & 0xFF) | ((bpm << 8) & 0xFF00));
+			}
+			return bpm.ToString () + " bpm";
+		}
+	}
+}
+
diff --git a/BluetoothHeartRateMonitor/HeartRateMonitor.Core/Pages/CharacteristicDetail_Hrm.xaml b/BluetoothHeartRateMonitor/HeartRateMonitor.Core/Pages/CharacteristicDetail_Hrm.xaml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" 
+			 xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" 
+			 x:Class="HeartRateMonitor.CharacteristicDetail_Hrm"
+			 Title="HeartRate Characteristic">
+
+	<StackLayout>
+		<StackLayout.Padding>10,10,10,10</StackLayout.Padding>
+		<Label Text="Heart rate info." />
+		<BoxView HeightRequest="3" WidthRequest="600" Color="Red" HorizontalOptions="CenterAndExpand" />
+
+		<Label Text="Name" TextColor="Gray" />
+		<Label x:Name="Name" Text="-" />
+
+		<Label Text="ID" TextColor="Gray" />
+		<Label x:Name="ID" Text="-" />
+
+		<Label Text="Raw Value" TextColor="Gray" />
+		<Label x:Name="RawValue" Text="-" />
+
+		<Label Text="String Value" TextColor="Gray" />
+		<Label x:Name="StringValue" Text="-" />
+	</StackLayout>
+</ContentPage>