与众不同 windows phone (20) - Device(设备)之位置服务(GPS 定位), FM 收音机, 麦克风, 震动器

时间:2023-03-08 16:52:03
与众不同 windows phone (20) - Device(设备)之位置服务(GPS 定位), FM 收音机, 麦克风, 震动器

原文:与众不同 windows phone (20) - Device(设备)之位置服务(GPS 定位), FM 收音机, 麦克风, 震动器

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与众不同 windows phone (20) - Device(设备)之位置服务(GPS 定位), FM 收音机, 麦克风, 震动器

作者:webabcd

介绍
与众不同 windows phone 7.5 (sdk 7.1) 之设备

  • 位置服务(GPS 定位)
  • FM 收音机
  • 麦克风
  • 震动器

示例
1、演示如何使用位置服务(GPS 定位)
GpsDemo.xaml

<phone:PhoneApplicationPage
x:Class="Demo.Device.GpsDemo"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="Portrait" Orientation="Portrait"
mc:Ignorable="d" d:DesignHeight="768" d:DesignWidth="480"
shell:SystemTray.IsVisible="True"> <Grid x:Name="LayoutRoot" Background="Transparent">
<StackPanel Orientation="Vertical"> <!--跳转到隐私声明页(如果使用了 GPS 则必须要有“隐私声明”,否则不会通过微软的审核)-->
<HyperlinkButton Content="隐私声明" NavigateUri="/Device/PrivacyPolicy.xaml" FontSize="{StaticResource PhoneFontSizeNormal}" Margin="10,6" HorizontalAlignment="Left" /> <TextBlock Name="lblStatus" /> <Button Name="btnLow" Content="低精度定位" Click="btnLow_Click" />
<Button Name="btnHigh" Content="高精度定位" Click="btnHigh_Click" />
<Button Name="btnClose" Content="关闭定位" Click="btnClose_Click" /> <TextBlock Name="lblMsg" /> </StackPanel>
</Grid> </phone:PhoneApplicationPage>

GpsDemo.xaml.cs

/*
* 演示如何使用位置服务(GPS 定位)
*
* GeoCoordinateWatcher - 用于提供地理位置数据
* Start() - 启动位置服务
* TryStart(bool suppressPermissionPrompt, TimeSpan timeout) - 尝试启动位置服务,返回值为位置服务是否启动成功
* suppressPermissionPrompt - 是否禁用权限提示对话框。true为禁用,false为启用
* timeout - 启动位置服务的超时时间
* Stop() - 停止位置服务
*
* DesiredAccuracy - 指定提供位置服务的精度级别(System.Device.Location.GeoPositionAccuracy 枚举)
* Default - 低精度定位
* High - 高精度定位
* Permission - 位置提供程序的权限,只读(System.Device.Location.GeoPositionPermission 枚举)
* Unknown - 权限未知
* Granted - 授予定位权限
* Denied - 拒绝定位权限
* Status - 位置服务的状态(System.Device.Location.GeoPositionStatus 枚举)
* Ready - 已经准备好相关数据
* Initializing - 位置提供程序初始化中
* NoData - 无有效数据
* Disabled - 位置服务不可用
* Position - 定位的位置数据,只读(Position.Location 是一个 System.Device.Location.GeoCoordinate 类型的对象)
* MovementThreshold - 自上次触发 PositionChanged 事件后,位置移动了此属性指定的距离后再次触发 PositionChanged 事件(单位:米)
* 此属性默认值为 0,即位置的任何改变都会触发 PositionChanged 事件
*
* PositionChanged - 经纬度数据发生改变时所触发的事件(系统会根据 MovementThreshold 属性的值来决定何时触发 PositionChanged 事件,当位置服务被打开后第一次得到位置数据时也会触发此事件)
* StatusChanged - 位置服务的状态发生改变时所触发的事件
*
*
*
* GeoCoordinate - 地理坐标
* Altitude - 海拔高度(单位:米)
* VerticalAccuracy - 海拔高度的精度(单位:米)
* Longitude - 经度
* Latitude - 纬度
* IsUnknown - 是否无经纬度数据。true代表无数据,false代表有数据
* HorizontalAccuracy - 经纬度的精度(单位:米)
* Course - 行进方向(单位:度,正北为 0 度)
* Speed - 行进速度(单位:米/秒)
*/ using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls; using System.Device.Location;
using System.Threading; namespace Demo.Device
{
public partial class GpsDemo : PhoneApplicationPage
{
private GeoCoordinateWatcher _watcher; public GpsDemo()
{
InitializeComponent(); _watcher = new GeoCoordinateWatcher();
} private void btnLow_Click(object sender, RoutedEventArgs e)
{
// 开启低精度位置服务
StartLocationService(GeoPositionAccuracy.Default);
} private void btnHigh_Click(object sender, RoutedEventArgs e)
{
// 开启高精度位置服务
StartLocationService(GeoPositionAccuracy.High);
} private void btnClose_Click(object sender, RoutedEventArgs e)
{
StopLocationService();
} private void StartLocationService(GeoPositionAccuracy accuracy)
{
_watcher = new GeoCoordinateWatcher(accuracy);
// 位置每移动 20 米触发一次 PositionChanged 事件
_watcher.MovementThreshold = ; _watcher.StatusChanged += new EventHandler<GeoPositionStatusChangedEventArgs>(_watcher_StatusChanged);
_watcher.PositionChanged += new EventHandler<GeoPositionChangedEventArgs<GeoCoordinate>>(_watcher_PositionChanged); lblStatus.Text = "GPS 服务启动中..."; new Thread((x) =>
{
// 启动 GPS 服务,会阻塞 UI 线程,所以要在后台线程处理
if (!_watcher.TryStart(true, TimeSpan.FromSeconds()))
{
Dispatcher.BeginInvoke(delegate
{
lblStatus.Text = "GPS 服务无法启动";
});
}
}).Start(); } private void StopLocationService()
{
if (_watcher != null)
_watcher.Stop(); lblStatus.Text = "GPS 服务已关闭";
} void _watcher_PositionChanged(object sender, GeoPositionChangedEventArgs<GeoCoordinate> e)
{
// 在 UI 上显示经纬度信息
Dispatcher.BeginInvoke(delegate
{
lblMsg.Text = "经度: " + e.Position.Location.Longitude.ToString("0.000");
lblMsg.Text += Environment.NewLine;
lblMsg.Text += "纬度: " + e.Position.Location.Latitude.ToString("0.000");
});
} void _watcher_StatusChanged(object sender, GeoPositionStatusChangedEventArgs e)
{
// 在 UI 上显示 GPS 服务状态
Dispatcher.BeginInvoke(delegate
{
switch (e.Status)
{
case GeoPositionStatus.Disabled:
if (_watcher.Permission == GeoPositionPermission.Denied)
lblStatus.Text = "GPS 服务拒绝访问";
else
lblStatus.Text = "GPS 服务不可用";
break;
case GeoPositionStatus.Initializing:
lblStatus.Text = "GPS 服务初始化";
break;
case GeoPositionStatus.NoData:
lblStatus.Text = "GPS 无有效数据";
break;
case GeoPositionStatus.Ready:
lblStatus.Text = "GPS 接收数据中";
break;
}
});
}
}
}

2、演示如何使用 FM 收音机
FMRadioDemo.xaml

<phone:PhoneApplicationPage
x:Class="Demo.Device.FMRadioDemo"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="Portrait" Orientation="Portrait"
mc:Ignorable="d" d:DesignHeight="768" d:DesignWidth="480"
shell:SystemTray.IsVisible="True"> <Grid x:Name="LayoutRoot" Background="Transparent">
<StackPanel Orientation="Vertical"> <TextBlock Name="lblStatus" /> <Button Name="btnStart" Content="打开收音机" Click="btnStart_Click" />
<Button Name="btnClose" Content="关闭收音机" Click="btnClose_Click" /> <TextBlock Name="lblMsg" /> </StackPanel>
</Grid> </phone:PhoneApplicationPage>

FMRadioDemo.xaml.cs

/*
* 演示如何使用 FM 收音机
*
* FMRadio - 用于操作 FM 收音机的类
* Instance - 返回 FMRadio 实例
* CurrentRegion - 收音机的区域信息(Microsoft.Devices.Radio.RadioRegion 枚举)
* UnitedStates - 美国
* Japan - 日本
* Europe - 其他地区
* Frequency - 指定 FM 调频的频率
* PowerMode - 打开或关闭收音机(Microsoft.Devices.Radio.RadioPowerMode 枚举)
* On - 打开收音机
* Off - 关闭收音机
* SignalStrength - 当前频率的信号强度(RSSI - Received Signal Strength Indication)
*/ using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls; using Microsoft.Devices.Radio;
using System.Windows.Threading;
using System.Threading; namespace Demo.Device
{
public partial class FMRadioDemo : PhoneApplicationPage
{
private FMRadio _radio;
private DispatcherTimer _timer; public FMRadioDemo()
{
InitializeComponent(); // 实例化 FMRadio,收听 90.5 频率
_radio = FMRadio.Instance;
_radio.CurrentRegion = RadioRegion.Europe;
_radio.Frequency = 90.5; _timer = new DispatcherTimer();
_timer.Interval = TimeSpan.FromMilliseconds();
_timer.Tick += new EventHandler(_timer_Tick);
_timer.Start(); if (_radio.PowerMode == RadioPowerMode.On)
lblStatus.Text = "收音机已打开";
else
lblStatus.Text = "收音机已关闭";
} void _timer_Tick(object sender, EventArgs e)
{
// 实时显示当前频率及信号强度
lblMsg.Text = "调频:" + _radio.Frequency;
lblMsg.Text += Environment.NewLine;
lblMsg.Text += "RSSI:" + _radio.SignalStrength.ToString("0.00");
} // 打开收音机
private void btnStart_Click(object sender, RoutedEventArgs e)
{
lblStatus.Text = "收音机打开中。。。"; // 首次启动收音机可能需要多达 3 秒的时间,以后再启动收音机则会在 100 毫秒以内,所以建议在后台线程打开收音机
new Thread((x) =>
{
_radio.PowerMode = RadioPowerMode.On;
Dispatcher.BeginInvoke(delegate
{
lblStatus.Text = "收音机已打开";
});
}).Start();
} // 关闭收音机
private void btnClose_Click(object sender, RoutedEventArgs e)
{
_radio.PowerMode = RadioPowerMode.Off;
lblStatus.Text = "收音机已关闭";
}
}
}

3、演示如何使用麦克风
MicrophoneDemo.xaml

<phone:PhoneApplicationPage
x:Class="Demo.Device.MicrophoneDemo"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="Portrait" Orientation="Portrait"
mc:Ignorable="d" d:DesignHeight="768" d:DesignWidth="480"
shell:SystemTray.IsVisible="True"> <Grid x:Name="LayoutRoot" Background="Transparent">
<StackPanel Orientation="Vertical"> <TextBlock Name="lblMsg" /> <Button Name="btnRecord" Content="录音" Click="btnRecord_Click" />
<Button Name="btnPlay" Content="播放" Click="btnPlay_Click" />
<Button Name="btnStop" Content="停止" Click="btnStop_Click" /> </StackPanel>
</Grid> </phone:PhoneApplicationPage>

MicrophoneDemo.xaml.cs

/*
* 演示如何使用麦克风进行录音
*
* Microphone - 用于捕获麦克风音频的类
* Default - 返回默认的 Microphone 实例
* All - 返回设备的全部 Microphone 实例集合
* SampleRate - 获取音频的采样率
* State - Microphone 的状态(Microsoft.Xna.Framework.Audio.MicrophoneState 枚举)
* Started - 正在捕获音频
* Stopped - 已经停止工作
* BufferDuration - 麦克风捕获音频时的缓冲时长
*
* BufferReady - 当麦克风捕获的音频时长达到 BufferDuration 设置的值后所触发的事件
*
* GetData(byte[] buffer) - 将麦克风最近捕获到的音频数据写入到指定的缓冲区
* GetSampleSizeInBytes(TimeSpan duration) - 麦克风捕获音频,根据音频时长返回音频字节数
* GetSampleDuration(int sizeInBytes) - 麦克风捕获音频,根据音频字节数返回音频时长
* Start() - 开始捕获
* Stop() - 停止捕获
*/ using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls; using Microsoft.Xna.Framework.Audio;
using System.IO;
using System.Threading;
using Microsoft.Xna.Framework; namespace Demo.Device
{
public partial class MicrophoneDemo : PhoneApplicationPage
{
// silverlight 和 xna 混合编程时,所需要用到的计时器
private GameTimer _timer; private Microphone _microphone = Microphone.Default;
private SoundEffectInstance _soundInstance; // 用于播放音频数据
private byte[] _buffer; // 每一片录音数据的缓冲区
private MemoryStream _stream = new MemoryStream(); // 整个录音数据的内存流 public MicrophoneDemo()
{
InitializeComponent(); _timer = new GameTimer();
// 指定计时器每 1/30 秒执行一次,即帧率为 30 fps
_timer.UpdateInterval = TimeSpan.FromTicks();
// 每次帧更新时所触发的事件
_timer.FrameAction += FrameworkDispatcherFrameAction;
_timer.Start(); _microphone.BufferReady += new EventHandler<EventArgs>(_microphone_BufferReady);
} private void FrameworkDispatcherFrameAction(object sender, EventArgs e)
{
// 当使用 silverlight 和 xna 混合编程时,每次帧更新时都需要调用 FrameworkDispatcher.Update()
FrameworkDispatcher.Update();
} void _microphone_BufferReady(object sender, EventArgs e)
{
// 当录音的缓冲被填满后,将数据写入缓冲区
_microphone.GetData(_buffer);
// 将缓冲区中的数据写入内存流
_stream.Write(_buffer, , _buffer.Length);
} private void btnRecord_Click(object sender, RoutedEventArgs e)
{
if (lblMsg.Text != "录音中")
{
// 设置录音的缓冲时长为 0.5 秒
_microphone.BufferDuration = TimeSpan.FromMilliseconds();
// 设置录音用的缓冲区的大小
_buffer = new byte[_microphone.GetSampleSizeInBytes(_microphone.BufferDuration)];
// 初始化内存流
_stream.SetLength(); _microphone.Start(); lblMsg.Text = "录音中";
}
} private void btnPlay_Click(object sender, RoutedEventArgs e)
{
if (_stream.Length > )
{
// 播放录音
Thread soundThread = new Thread(new ThreadStart(playSound));
soundThread.Start(); lblMsg.Text = "播放录音";
}
} private void btnStop_Click(object sender, RoutedEventArgs e)
{
if (_microphone.State == MicrophoneState.Started)
{
// 停止录音
_microphone.Stop(); lblMsg.Text = "停止录音";
}
else if (_soundInstance.State == SoundState.Playing)
{
// 停止播放录音
_soundInstance.Stop(); lblMsg.Text = "停止播放录音";
}
} private void playSound()
{
// 播放内存流中的音频
SoundEffect sound = new SoundEffect(_stream.ToArray(), _microphone.SampleRate, AudioChannels.Mono);
_soundInstance = sound.CreateInstance();
_soundInstance.Play();
}
}
}

4、演示如何使用震动器
VibrationDemo.xaml

<phone:PhoneApplicationPage
x:Class="Demo.Device.VibrationDemo"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="Portrait" Orientation="Portrait"
mc:Ignorable="d" d:DesignHeight="768" d:DesignWidth="480"
shell:SystemTray.IsVisible="True"> <Grid x:Name="LayoutRoot" Background="Transparent">
<StackPanel Orientation="Vertical"> <Button Name="btnStart" Content="开始震动" Click="btnStart_Click" /> <Button Name="btnStop" Content="停止震动" Click="btnStop_Click" /> </StackPanel>
</Grid> </phone:PhoneApplicationPage>

VibrationDemo.xaml.cs

/*
* 演示如何使用震动器
*
* VibrateController - 用于控制震动器
* Default - 获取 VibrateController 实例
* Start(TimeSpan duration) - 指定震动时长,并使设备震动。有效时长在 0 - 5 秒之间,否则会抛出异常
* Stop() - 停止设备的震动
*/ using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls; using Microsoft.Devices; namespace Demo.Device
{
public partial class VibrationDemo : PhoneApplicationPage
{
public VibrationDemo()
{
InitializeComponent();
} private void btnStart_Click(object sender, RoutedEventArgs e)
{
// 震动 5 秒
VibrateController.Default.Start(TimeSpan.FromMilliseconds( * ));
} private void btnStop_Click(object sender, RoutedEventArgs e)
{
// 停止震动
VibrateController.Default.Stop();
}
}
}

OK
[源码下载]